org.apache.ambari.server.configuration.Configuration.java Source code

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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.ambari.server.configuration;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Properties;

import org.apache.ambari.server.AmbariException;
import org.apache.ambari.server.orm.JPATableGenerationStrategy;
import org.apache.ambari.server.orm.PersistenceType;
import org.apache.ambari.server.security.ClientSecurityType;
import org.apache.ambari.server.security.authorization.LdapServerProperties;
import org.apache.ambari.server.security.encryption.CredentialProvider;
import org.apache.ambari.server.utils.ShellCommandUtil;
import org.apache.commons.io.FileUtils;
import org.apache.commons.lang.RandomStringUtils;
import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.inject.Singleton;

/**
 * Ambari configuration.
 * Reads properties from tbds.properties
 */
@Singleton
public class Configuration {

    public static final String CONFIG_FILE = "tbds.properties";
    public static final String BOOTSTRAP_DIR = "bootstrap.dir";

    /**
     *  PREFIX_DIR is shared in ambari-agent.ini and should only be called by unit tests.
     *  For all server-side processing, it should be retrieved from <code>HostImpl.getPrefix()</code>
     */
    public static final String PREFIX_DIR = "/var/lib/ambari-agent/data";

    public static final String BOOTSTRAP_DIR_DEFAULT = "/var/run/tbds-server/bootstrap";
    public static final String VIEWS_DIR = "views.dir";
    public static final String VIEWS_DIR_DEFAULT = "/var/lib/tbds-server/resources/views";
    public static final String VIEWS_VALIDATE = "views.validate";
    public static final String VIEWS_VALIDATE_DEFAULT = "false";
    public static final String WEBAPP_DIR = "webapp.dir";
    public static final String BOOTSTRAP_SCRIPT = "bootstrap.script";
    public static final String BOOTSTRAP_SCRIPT_DEFAULT = "/usr/bin/ambari_bootstrap";
    public static final String BOOTSTRAP_SETUP_AGENT_SCRIPT = "bootstrap.setup_agent.script";
    public static final String BOOTSTRAP_SETUP_AGENT_PASSWORD = "bootstrap.setup_agent.password";
    public static final String BOOTSTRAP_MASTER_HOSTNAME = "bootstrap.master_host_name";
    public static final String RECOMMENDATIONS_DIR = "recommendations.dir";
    public static final String RECOMMENDATIONS_DIR_DEFAULT = "/var/run/tbds-server/stack-recommendations";
    public static final String STACK_ADVISOR_SCRIPT = "stackadvisor.script";
    public static final String STACK_ADVISOR_SCRIPT_DEFAULT = "/var/lib/tbds-server/resources/scripts/stack_advisor.py";
    public static final String AMBARI_PYTHON_WRAP_KEY = "ambari.python.wrap";
    public static final String AMBARI_PYTHON_WRAP_DEFAULT = "ambari-python-wrap";
    public static final String API_AUTHENTICATE = "api.authenticate";
    public static final String API_USE_SSL = "api.ssl";
    public static final String API_CSRF_PREVENTION_KEY = "api.csrfPrevention.enabled";
    public static final String SRVR_TWO_WAY_SSL_KEY = "security.server.two_way_ssl";
    public static final String SRVR_TWO_WAY_SSL_PORT_KEY = "security.server.two_way_ssl.port";
    public static final String SRVR_ONE_WAY_SSL_PORT_KEY = "security.server.one_way_ssl.port";
    public static final String SRVR_KSTR_DIR_KEY = "security.server.keys_dir";
    public static final String SRVR_CRT_NAME_KEY = "security.server.cert_name";
    public static final String SRVR_CSR_NAME_KEY = "security.server.csr_name";
    public static final String SRVR_KEY_NAME_KEY = "security.server.key_name";
    public static final String KSTR_NAME_KEY = "security.server.keystore_name";
    public static final String SRVR_CRT_PASS_FILE_KEY = "security.server.crt_pass_file";
    public static final String SRVR_CRT_PASS_KEY = "security.server.crt_pass";
    public static final String SRVR_CRT_PASS_LEN_KEY = "security.server.crt_pass.len";
    public static final String PASSPHRASE_ENV_KEY = "security.server.passphrase_env_var";
    public static final String PASSPHRASE_KEY = "security.server.passphrase";
    public static final String SRVR_DISABLED_CIPHERS = "security.server.disabled.ciphers";
    public static final String SRVR_DISABLED_PROTOCOLS = "security.server.disabled.protocols";
    public static final String RESOURCES_DIR_KEY = "resources.dir";
    public static final String METADETA_DIR_PATH = "metadata.path";
    public static final String COMMON_SERVICES_DIR_PATH = "common.services.path";
    public static final String SERVER_VERSION_FILE = "server.version.file";
    public static final String SERVER_VERSION_KEY = "version";
    public static final String JAVA_HOME_KEY = "java.home";
    public static final String JDK_NAME_KEY = "jdk.name";
    public static final String JCE_NAME_KEY = "jce.name";
    public static final String CLIENT_SECURITY_KEY = "client.security";
    public static final String CLIENT_API_PORT_KEY = "client.api.port";
    public static final String CLIENT_API_SSL_PORT_KEY = "client.api.ssl.port";
    public static final String CLIENT_API_SSL_KSTR_DIR_NAME_KEY = "client.api.ssl.keys_dir";
    public static final String CLIENT_API_SSL_KSTR_NAME_KEY = "client.api.ssl.keystore_name";
    public static final String CLIENT_API_SSL_CRT_NAME_KEY = "client.api.ssl.cert_name";
    public static final String CLIENT_API_SSL_CRT_PASS_FILE_NAME_KEY = "client.api.ssl.cert_pass_file";
    public static final String CLIENT_API_SSL_CRT_PASS_KEY = "client.api.ssl.crt_pass";
    public static final String CLIENT_API_SSL_KEY_NAME_KEY = "client.api.ssl.key_name";
    public static final String SERVER_DB_NAME_KEY = "server.jdbc.database_name";
    public static final String SERVER_DB_NAME_DEFAULT = "ambari";
    public static final String REQUEST_READ_TIMEOUT = "views.request.read.timeout.millis";
    public static final String REQUEST_READ_TIMEOUT_DEFAULT = "10000";
    public static final String REQUEST_CONNECT_TIMEOUT = "views.request.connect.timeout.millis";
    public static final String REQUEST_CONNECT_TIMEOUT_DEFAULT = "5000";
    public static final String SERVER_JDBC_POSTGRES_SCHEMA_NAME = "server.jdbc.postgres.schema";
    public static final String OJDBC_JAR_NAME_KEY = "db.oracle.jdbc.name";
    public static final String OJDBC_JAR_NAME_DEFAULT = "ojdbc6.jar";
    public static final String MYSQL_JAR_NAME_KEY = "db.mysql.jdbc.name";
    public static final String MYSQL_JAR_NAME_DEFAULT = "mysql-connector-java.jar";
    public static final String IS_LDAP_CONFIGURED = "ambari.ldap.isConfigured";
    public static final String LDAP_USE_SSL_KEY = "authentication.ldap.useSSL";
    public static final String LDAP_PRIMARY_URL_KEY = "authentication.ldap.primaryUrl";
    public static final String LDAP_SECONDARY_URL_KEY = "authentication.ldap.secondaryUrl";
    public static final String LDAP_BASE_DN_KEY = "authentication.ldap.baseDn";
    public static final String LDAP_BIND_ANONYMOUSLY_KEY = "authentication.ldap.bindAnonymously";
    public static final String LDAP_MANAGER_DN_KEY = "authentication.ldap.managerDn";
    public static final String LDAP_MANAGER_PASSWORD_KEY = "authentication.ldap.managerPassword";
    public static final String LDAP_DN_ATTRIBUTE_KEY = "authentication.ldap.dnAttribute";
    public static final String LDAP_USERNAME_ATTRIBUTE_KEY = "authentication.ldap.usernameAttribute";
    public static final String LDAP_USER_BASE_KEY = "authentication.ldap.userBase";
    public static final String LDAP_USER_OBJECT_CLASS_KEY = "authentication.ldap.userObjectClass";
    public static final String LDAP_GROUP_BASE_KEY = "authentication.ldap.groupBase";
    public static final String LDAP_GROUP_OBJECT_CLASS_KEY = "authentication.ldap.groupObjectClass";
    public static final String LDAP_GROUP_NAMING_ATTR_KEY = "authentication.ldap.groupNamingAttr";
    public static final String LDAP_GROUP_MEMEBERSHIP_ATTR_KEY = "authentication.ldap.groupMembershipAttr";
    public static final String LDAP_ADMIN_GROUP_MAPPING_RULES_KEY = "authorization.ldap.adminGroupMappingRules";
    public static final String LDAP_GROUP_SEARCH_FILTER_KEY = "authorization.ldap.groupSearchFilter";
    public static final String LDAP_REFERRAL_KEY = "authentication.ldap.referral";
    public static final String SERVER_EC_CACHE_SIZE = "server.ecCacheSize";
    public static final String SERVER_STALE_CONFIG_CACHE_ENABLED_KEY = "server.cache.isStale.enabled";
    public static final String SERVER_PERSISTENCE_TYPE_KEY = "server.persistence.type";
    public static final String SERVER_JDBC_USER_NAME_KEY = "server.jdbc.user.name";
    public static final String SERVER_JDBC_USER_PASSWD_KEY = "server.jdbc.user.passwd";
    public static final String SERVER_JDBC_DRIVER_KEY = "server.jdbc.driver";
    public static final String SERVER_JDBC_URL_KEY = "server.jdbc.url";
    public static final String SERVER_JDBC_PROPERTIES_PREFIX = "server.jdbc.properties.";

    public static final String SERVER_JDBC_CONNECTION_POOL = "server.jdbc.connection-pool";
    public static final String SERVER_JDBC_CONNECTION_POOL_MIN_SIZE = "server.jdbc.connection-pool.min-size";
    public static final String SERVER_JDBC_CONNECTION_POOL_MAX_SIZE = "server.jdbc.connection-pool.max-size";
    public static final String SERVER_JDBC_CONNECTION_POOL_AQUISITION_SIZE = "server.jdbc.connection-pool.acquisition-size";
    public static final String SERVER_JDBC_CONNECTION_POOL_MAX_AGE = "server.jdbc.connection-pool.max-age";
    public static final String SERVER_JDBC_CONNECTION_POOL_MAX_IDLE_TIME = "server.jdbc.connection-pool.max-idle-time";
    public static final String SERVER_JDBC_CONNECTION_POOL_MAX_IDLE_TIME_EXCESS = "server.jdbc.connection-pool.max-idle-time-excess";
    public static final String SERVER_JDBC_CONNECTION_POOL_IDLE_TEST_INTERVAL = "server.jdbc.connection-pool.idle-test-interval";

    public static final String SERVER_JDBC_RCA_USER_NAME_KEY = "server.jdbc.rca.user.name";
    public static final String SERVER_JDBC_RCA_USER_PASSWD_KEY = "server.jdbc.rca.user.passwd";
    public static final String SERVER_JDBC_RCA_DRIVER_KEY = "server.jdbc.rca.driver";
    public static final String SERVER_JDBC_RCA_URL_KEY = "server.jdbc.rca.url";
    public static final String SERVER_JDBC_GENERATE_TABLES_KEY = "server.jdbc.generateTables";
    public static final String JDBC_UNIT_NAME = "ambari-server";
    public static final String JDBC_LOCAL_URL = "jdbc:postgresql://localhost/";
    public static final String JDBC_LOCAL_DRIVER = "org.postgresql.Driver";
    public static final String JDBC_IN_MEMORY_URL = "jdbc:derby:memory:myDB/ambari;create=true";
    public static final String JDBC_IN_MEMROY_DRIVER = "org.apache.derby.jdbc.EmbeddedDriver";
    public static final String HOSTNAME_MACRO = "{hostname}";
    public static final String JDBC_RCA_LOCAL_URL = "jdbc:postgresql://" + HOSTNAME_MACRO + "/ambarirca";
    public static final String JDBC_RCA_LOCAL_DRIVER = "org.postgresql.Driver";
    public static final String OS_FAMILY_KEY = "server.os_family";
    public static final String OS_VERSION_KEY = "server.os_type";
    public static final String SRVR_HOSTS_MAPPING = "server.hosts.mapping";
    // Command parameter names
    public static final String UPGRADE_FROM_STACK = "source_stack_version";
    public static final String UPGRADE_TO_STACK = "target_stack_version";
    public static final String SSL_TRUSTSTORE_PATH_KEY = "ssl.trustStore.path";
    public static final String SSL_TRUSTSTORE_PASSWORD_KEY = "ssl.trustStore.password";
    public static final String SSL_TRUSTSTORE_TYPE_KEY = "ssl.trustStore.type";
    public static final String JAVAX_SSL_TRUSTSTORE = "javax.net.ssl.trustStore";
    public static final String JAVAX_SSL_TRUSTSTORE_PASSWORD = "javax.net.ssl.trustStorePassword";
    public static final String JAVAX_SSL_TRUSTSTORE_TYPE = "javax.net.ssl.trustStoreType";
    public static final String GANGLIA_HTTPS_KEY = "ganglia.https";
    public static final String SRVR_TWO_WAY_SSL_PORT_DEFAULT = "8441";
    public static final String SRVR_ONE_WAY_SSL_PORT_DEFAULT = "8440";
    public static final String SRVR_CRT_NAME_DEFAULT = "ca.crt";
    public static final String SRVR_KEY_NAME_DEFAULT = "ca.key";
    public static final String SRVR_CSR_NAME_DEFAULT = "ca.csr";
    public static final String KSTR_NAME_DEFAULT = "keystore.p12";
    public static final String CLIENT_API_SSL_KSTR_NAME_DEFAULT = "https.keystore.p12";
    public static final String CLIENT_API_SSL_CRT_PASS_FILE_NAME_DEFAULT = "https.pass.txt";
    public static final String CLIENT_API_SSL_KEY_NAME_DEFAULT = "https.key";
    public static final String CLIENT_API_SSL_CRT_NAME_DEFAULT = "https.crt";
    public static final String GLOBAL_CONFIG_TAG = "global";
    public static final String MAPREDUCE2_LOG4J_CONFIG_TAG = "mapreduce2-log4j";
    public static final String RCA_ENABLED_PROPERTY = "rca_enabled";
    public static final String HIVE_CONFIG_TAG = "hive-site";
    public static final String HIVE_METASTORE_PASSWORD_PROPERTY = "javax.jdo.option.ConnectionPassword";
    public static final String MASTER_KEY_PERSISTED = "security.master.key.ispersisted";
    public static final String MASTER_KEY_LOCATION = "security.master.key.location";
    public static final String MASTER_KEY_ENV_PROP = "TBDS_SECURITY_MASTER_KEY";
    public static final String MASTER_KEY_FILENAME_DEFAULT = "master";

    /**
     * Key for repo validation suffixes.
     */
    public static final String REPO_SUFFIX_KEY_UBUNTU = "repo.validation.suffixes.ubuntu";
    public static final String REPO_SUFFIX_KEY_DEFAULT = "repo.validation.suffixes.default";

    public static final String EXECUTION_SCHEDULER_CLUSTERED = "server.execution.scheduler.isClustered";
    public static final String EXECUTION_SCHEDULER_THREADS = "server.execution.scheduler.maxThreads";
    public static final String EXECUTION_SCHEDULER_CONNECTIONS = "server.execution.scheduler.maxDbConnections";
    public static final String EXECUTION_SCHEDULER_MISFIRE_TOLERATION = "server.execution.scheduler.misfire.toleration.minutes";
    public static final String EXECUTION_SCHEDULER_START_DELAY = "server.execution.scheduler.start.delay.seconds";
    public static final String DEFAULT_SCHEDULER_THREAD_COUNT = "5";
    public static final String DEFAULT_SCHEDULER_MAX_CONNECTIONS = "5";
    public static final String DEFAULT_EXECUTION_SCHEDULER_MISFIRE_TOLERATION = "480";
    public static final String DEFAULT_SCHEDULER_START_DELAY_SECONDS = "120";
    public static final String SERVER_TMP_DIR_KEY = "server.tmp.dir";
    public static final String SERVER_TMP_DIR_DEFAULT = "/var/lib/tbds-server/tmp";
    public static final String EXTERNAL_SCRIPT_TIMEOUT_KEY = "server.script.timeout";
    public static final String EXTERNAL_SCRIPT_TIMEOUT_DEFAULT = "5000";
    public static final String DEF_ARCHIVE_EXTENSION;
    public static final String DEF_ARCHIVE_CONTENT_TYPE;

    /**
     * Kerberos related configuration options
     */
    public static final String KDC_PORT_KEY = "default.kdcserver.port";
    public static final String KDC_PORT_KEY_DEFAULT = "88";
    public static final String KDC_CONNECTION_CHECK_TIMEOUT_KEY = "kdcserver.connection.check.timeout";
    public static final String KDC_CONNECTION_CHECK_TIMEOUT_DEFAULT = "10000";
    public static final String KERBEROS_KEYTAB_CACHE_DIR_KEY = "kerberos.keytab.cache.dir";
    public static final String KERBEROS_KEYTAB_CACHE_DIR_DEFAULT = "/var/lib/tbds-server/data/cache";
    /**
     * This key defines whether stages of parallel requests are executed in
     * parallel or sequentally. Only stages from different requests
     * running on not interfering host sets may be executed in parallel.
     */
    public static final String PARALLEL_STAGE_EXECUTION_KEY = "server.stages.parallel";
    public static final String AGENT_TASK_TIMEOUT_KEY = "agent.task.timeout";
    public static final String AGENT_PACKAGE_INSTALL_TASK_TIMEOUT_KEY = "agent.package.install.task.timeout";
    public static final String AGENT_TASK_TIMEOUT_DEFAULT = "900";
    public static final String AGENT_PACKAGE_INSTALL_TASK_TIMEOUT_DEFAULT = "1800";

    public static final String CUSTOM_ACTION_DEFINITION_KEY = "custom.action.definitions";
    public static final String SHARED_RESOURCES_DIR_KEY = "shared.resources.dir";
    private static final String CUSTOM_ACTION_DEFINITION_DEF_VALUE = "/var/lib/tbds-server/resources/custom_action_definitions";

    private static final long SERVER_EC_CACHE_SIZE_DEFAULT = 10000L;
    private static final String SERVER_STALE_CONFIG_CACHE_ENABLED_DEFAULT = "true";
    private static final String SERVER_JDBC_USER_NAME_DEFAULT = "ambari";
    private static final String SERVER_JDBC_USER_PASSWD_DEFAULT = "bigdata";
    private static final String SERVER_JDBC_RCA_USER_NAME_DEFAULT = "mapred";
    private static final String SERVER_JDBC_RCA_USER_PASSWD_DEFAULT = "mapred";
    private static final String SRVR_TWO_WAY_SSL_DEFAULT = "false";
    private static final String SRVR_KSTR_DIR_DEFAULT = ".";
    private static final String API_CSRF_PREVENTION_DEFAULT = "true";
    private static final String SRVR_CRT_PASS_FILE_DEFAULT = "pass.txt";
    private static final String SRVR_CRT_PASS_LEN_DEFAULT = "50";
    private static final String SRVR_DISABLED_CIPHERS_DEFAULT = "";
    private static final String SRVR_DISABLED_PROTOCOLS_DEFAULT = "";
    private static final String PASSPHRASE_ENV_DEFAULT = "AMBARI_PASSPHRASE";
    private static final String RESOURCES_DIR_DEFAULT = "/var/lib/tbds-server/resources/";
    private static final String SHARED_RESOURCES_DIR_DEFAULT = "/usr/lib/tbds-server/lib/ambari_commons/resources";
    private static final String ANONYMOUS_AUDIT_NAME_KEY = "anonymous.audit.name";

    private static final int CLIENT_API_PORT_DEFAULT = 8080;
    private static final int CLIENT_API_SSL_PORT_DEFAULT = 8443;
    private static final String LDAP_BIND_ANONYMOUSLY_DEFAULT = "true";

    /**
     * !!! TODO: For embedded server only - should be removed later
     */
    private static final String LDAP_PRIMARY_URL_DEFAULT = "localhost:33389";
    private static final String LDAP_BASE_DN_DEFAULT = "dc=ambari,dc=apache,dc=org";
    private static final String LDAP_USERNAME_ATTRIBUTE_DEFAULT = "uid";
    private static final String LDAP_DN_ATTRIBUTE_DEFAULT = "dn";
    private static final String LDAP_USER_BASE_DEFAULT = "ou=people,dc=ambari,dc=apache,dc=org";
    private static final String LDAP_USER_OBJECT_CLASS_DEFAULT = "person";
    private static final String LDAP_GROUP_BASE_DEFAULT = "ou=groups,dc=ambari,dc=apache,dc=org";
    private static final String LDAP_GROUP_OBJECT_CLASS_DEFAULT = "group";
    private static final String LDAP_GROUP_NAMING_ATTR_DEFAULT = "cn";
    private static final String LDAP_GROUP_MEMBERSHIP_ATTR_DEFAULT = "member";
    private static final String LDAP_ADMIN_GROUP_MAPPING_RULES_DEFAULT = "Ambari Administrators";
    private static final String LDAP_GROUP_SEARCH_FILTER_DEFAULT = "";
    private static final String LDAP_REFERRAL_DEFAULT = "follow";

    /**
     * !!! TODO: for development purposes only, should be changed to 'false'
     */
    private static final String IS_LDAP_CONFIGURED_DEFAULT = "false";

    private static final String SERVER_PERSISTENCE_TYPE_DEFAULT = "local";
    private static final String SERVER_CONNECTION_MAX_IDLE_TIME = "server.connection.max.idle.millis";

    private static final String UBUNTU_OS = "ubuntu12";

    /**
     * Default for repo validation suffixes.
     */
    private static final String REPO_SUFFIX_DEFAULT = "/repodata/repomd.xml";
    private static final String REPO_SUFFIX_UBUNTU = "/dists/%s/Release";

    private static final String PARALLEL_STAGE_EXECUTION_DEFAULT = "true";

    private static final String CLIENT_THREADPOOL_SIZE_KEY = "client.threadpool.size.max";
    private static final int CLIENT_THREADPOOL_SIZE_DEFAULT = 25;
    private static final String AGENT_THREADPOOL_SIZE_KEY = "agent.threadpool.size.max";
    private static final int AGENT_THREADPOOL_SIZE_DEFAULT = 25;

    private static final String VIEW_EXTRACTION_THREADPOOL_MAX_SIZE_KEY = "view.extraction.threadpool.size.max";
    private static final int VIEW_EXTRACTION_THREADPOOL_MAX_SIZE_DEFAULT = 20;
    private static final String VIEW_EXTRACTION_THREADPOOL_CORE_SIZE_KEY = "view.extraction.threadpool.size.core";
    private static final int VIEW_EXTRACTION_THREADPOOL_CORE_SIZE_DEFAULT = 10;
    private static final String VIEW_EXTRACTION_THREADPOOL_TIMEOUT_KEY = "view.extraction.threadpool.timeout";
    private static final long VIEW_EXTRACTION_THREADPOOL_TIMEOUT_DEFAULT = 100000L;

    private static final String SERVER_HTTP_SESSION_INACTIVE_TIMEOUT = "server.http.session.inactive_timeout";

    // database pooling defaults
    private static final String DEFAULT_JDBC_POOL_MIN_CONNECTIONS = "5";
    private static final String DEFAULT_JDBC_POOL_MAX_CONNECTIONS = "32";
    private static final String DEFAULT_JDBC_POOL_ACQUISITION_SIZE = "5";
    private static final String DEFAULT_JDBC_POOL_MAX_IDLE_TIME_SECONDS = "14400";
    private static final String DEFAULT_JDBC_POOL_EXCESS_MAX_IDLE_TIME_SECONDS = "0";
    private static final String DEFAULT_JDBC_POOL_MAX_AGE_SECONDS = "0";
    private static final String DEFAULT_JDBC_POOL_IDLE_TEST_INTERVAL = "7200";

    //bootstrap init config
    private static final String BOOTSTRAP_AGENT_DEFAULT_LOGIN_USER_KEY = "bootstarp_agent_default_login_user";
    private static final String BOOTSTRAP_AGENT_DEFAULT_LOGIN_USER_DEFAULT = "tencent";
    private static final String BOOTSTRAP_AGENT_DEFAULT_LOGIN_PASSWROD_KEY = "bootstarp_agent_default_login_password";
    private static final String BOOTSTRAP_AGENT_DEFAULT_LOGIN_PASSWROD_DEFAULT = "tencent";
    private static final String BOOTSTRAP_SSH_USER_KEY = "bootstarp_ssh_user";
    private static final String BOOTSTRAP_SSH_USER_DEFAULT = "tencent";

    /**
     * The full path to the XML file that describes the different alert templates.
     */
    private static final String ALERT_TEMPLATE_FILE = "alerts.template.file";

    private static final Logger LOG = LoggerFactory.getLogger(Configuration.class);

    private Properties properties;
    private Map<String, String> configsMap;
    private CredentialProvider credentialProvider = null;
    private volatile boolean credentialProviderInitialized = false;
    private Map<String, String> customDbProperties = null;

    static {
        if (System.getProperty("os.name").contains("Windows")) {
            DEF_ARCHIVE_EXTENSION = ".zip";
            DEF_ARCHIVE_CONTENT_TYPE = "application/zip";
        } else {
            DEF_ARCHIVE_EXTENSION = ".tar.gz";
            DEF_ARCHIVE_CONTENT_TYPE = "application/x-ustar";
        }
    }

    /**
     * The {@link DatabaseType} enum represents the database being used.
     */
    public enum DatabaseType {
        POSTGRES("postgres"), ORACLE("oracle"), MYSQL("mysql"), DERBY("derby"), SQL_SERVER("sqlserver");

        private static final Map<String, DatabaseType> m_mappedTypes = new HashMap<String, Configuration.DatabaseType>(
                5);

        static {
            for (DatabaseType databaseType : EnumSet.allOf(DatabaseType.class)) {
                m_mappedTypes.put(databaseType.getName(), databaseType);
            }
        }

        /**
         * The JDBC URL type name.
         */
        private String m_databaseType;

        /**
         * Constructor.
         *
         */
        private DatabaseType(String databaseType) {
            m_databaseType = databaseType;
        }

        /**
         * Gets an internal name for this database type.
         *
         * @return the internal name for this database type.
         */
        public String getName() {
            return m_databaseType;
        }

        public DatabaseType get(String databaseTypeName) {
            return m_mappedTypes.get(databaseTypeName);
        }
    }

    /**
     * The {@link ConnectionPoolType} is used to define which pooling mechanism
     * JDBC should use.
     */
    public enum ConnectionPoolType {
        INTERNAL("internal"), C3P0("c3p0");

        /**
         * The connection pooling name.
         */
        private String m_name;

        /**
         * Constructor.
         *
         * @param name
         */
        private ConnectionPoolType(String name) {
            m_name = name;
        }

        /**
         * Gets an internal name for this connection pool type.
         *
         * @return the internal name for this connection pool type.
         */
        public String getName() {
            return m_name;
        }
    }

    public Configuration() {
        this(readConfigFile());
    }

    /**
     * This constructor is called from default constructor and
     * also from most tests.
     * @param properties properties to use for testing and in production using
     * the Conf object.
     */
    public Configuration(Properties properties) {
        this.properties = properties;

        configsMap = new HashMap<String, String>();
        configsMap.put(AMBARI_PYTHON_WRAP_KEY,
                properties.getProperty(AMBARI_PYTHON_WRAP_KEY, AMBARI_PYTHON_WRAP_DEFAULT));
        configsMap.put(SRVR_TWO_WAY_SSL_KEY,
                properties.getProperty(SRVR_TWO_WAY_SSL_KEY, SRVR_TWO_WAY_SSL_DEFAULT));
        configsMap.put(SRVR_TWO_WAY_SSL_PORT_KEY,
                properties.getProperty(SRVR_TWO_WAY_SSL_PORT_KEY, SRVR_TWO_WAY_SSL_PORT_DEFAULT));
        configsMap.put(SRVR_ONE_WAY_SSL_PORT_KEY,
                properties.getProperty(SRVR_ONE_WAY_SSL_PORT_KEY, SRVR_ONE_WAY_SSL_PORT_DEFAULT));
        configsMap.put(SRVR_KSTR_DIR_KEY, properties.getProperty(SRVR_KSTR_DIR_KEY, SRVR_KSTR_DIR_DEFAULT));
        configsMap.put(SRVR_CRT_NAME_KEY, properties.getProperty(SRVR_CRT_NAME_KEY, SRVR_CRT_NAME_DEFAULT));
        configsMap.put(SRVR_KEY_NAME_KEY, properties.getProperty(SRVR_KEY_NAME_KEY, SRVR_KEY_NAME_DEFAULT));
        configsMap.put(SRVR_CSR_NAME_KEY, properties.getProperty(SRVR_CSR_NAME_KEY, SRVR_CSR_NAME_DEFAULT));
        configsMap.put(KSTR_NAME_KEY, properties.getProperty(KSTR_NAME_KEY, KSTR_NAME_DEFAULT));
        configsMap.put(SRVR_CRT_PASS_FILE_KEY,
                properties.getProperty(SRVR_CRT_PASS_FILE_KEY, SRVR_CRT_PASS_FILE_DEFAULT));
        configsMap.put(PASSPHRASE_ENV_KEY, properties.getProperty(PASSPHRASE_ENV_KEY, PASSPHRASE_ENV_DEFAULT));
        configsMap.put(PASSPHRASE_KEY, System.getenv(configsMap.get(PASSPHRASE_ENV_KEY)));
        configsMap.put(RESOURCES_DIR_KEY, properties.getProperty(RESOURCES_DIR_KEY, RESOURCES_DIR_DEFAULT));
        configsMap.put(SRVR_CRT_PASS_LEN_KEY,
                properties.getProperty(SRVR_CRT_PASS_LEN_KEY, SRVR_CRT_PASS_LEN_DEFAULT));
        configsMap.put(SRVR_DISABLED_CIPHERS,
                properties.getProperty(SRVR_DISABLED_CIPHERS, SRVR_DISABLED_CIPHERS_DEFAULT));
        configsMap.put(SRVR_DISABLED_PROTOCOLS,
                properties.getProperty(SRVR_DISABLED_PROTOCOLS, SRVR_DISABLED_PROTOCOLS_DEFAULT));

        configsMap.put(CLIENT_API_SSL_KSTR_DIR_NAME_KEY,
                properties.getProperty(CLIENT_API_SSL_KSTR_DIR_NAME_KEY, configsMap.get(SRVR_KSTR_DIR_KEY)));
        configsMap.put(CLIENT_API_SSL_KSTR_NAME_KEY,
                properties.getProperty(CLIENT_API_SSL_KSTR_NAME_KEY, CLIENT_API_SSL_KSTR_NAME_DEFAULT));
        configsMap.put(CLIENT_API_SSL_CRT_PASS_FILE_NAME_KEY, properties
                .getProperty(CLIENT_API_SSL_CRT_PASS_FILE_NAME_KEY, CLIENT_API_SSL_CRT_PASS_FILE_NAME_DEFAULT));
        configsMap.put(CLIENT_API_SSL_KEY_NAME_KEY,
                properties.getProperty(CLIENT_API_SSL_KEY_NAME_KEY, CLIENT_API_SSL_KEY_NAME_DEFAULT));
        configsMap.put(CLIENT_API_SSL_CRT_NAME_KEY,
                properties.getProperty(CLIENT_API_SSL_CRT_NAME_KEY, CLIENT_API_SSL_CRT_NAME_DEFAULT));
        configsMap.put(JAVA_HOME_KEY, properties.getProperty(JAVA_HOME_KEY));
        configsMap.put(PARALLEL_STAGE_EXECUTION_KEY,
                properties.getProperty(PARALLEL_STAGE_EXECUTION_KEY, PARALLEL_STAGE_EXECUTION_DEFAULT));
        configsMap.put(SERVER_TMP_DIR_KEY, properties.getProperty(SERVER_TMP_DIR_KEY, SERVER_TMP_DIR_DEFAULT));
        configsMap.put(EXTERNAL_SCRIPT_TIMEOUT_KEY,
                properties.getProperty(EXTERNAL_SCRIPT_TIMEOUT_KEY, EXTERNAL_SCRIPT_TIMEOUT_DEFAULT));

        configsMap.put(SHARED_RESOURCES_DIR_KEY,
                properties.getProperty(SHARED_RESOURCES_DIR_KEY, SHARED_RESOURCES_DIR_DEFAULT));

        configsMap.put(KDC_PORT_KEY, properties.getProperty(KDC_PORT_KEY, KDC_PORT_KEY_DEFAULT));

        File passFile = new File(
                configsMap.get(SRVR_KSTR_DIR_KEY) + File.separator + configsMap.get(SRVR_CRT_PASS_FILE_KEY));
        String password = null;

        if (!passFile.exists()) {
            LOG.info("Generation of file with password");
            try {
                password = RandomStringUtils
                        .randomAlphanumeric(Integer.parseInt(configsMap.get(SRVR_CRT_PASS_LEN_KEY)));
                FileUtils.writeStringToFile(passFile, password);
                ShellCommandUtil.setUnixFilePermissions(ShellCommandUtil.MASK_OWNER_ONLY_RW,
                        passFile.getAbsolutePath());
            } catch (IOException e) {
                e.printStackTrace();
                throw new RuntimeException("Error reading certificate password from file");
            }
        } else {
            LOG.info("Reading password from existing file");
            try {
                password = FileUtils.readFileToString(passFile);
                password = password.replaceAll("\\p{Cntrl}", "");
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        configsMap.put(SRVR_CRT_PASS_KEY, password);

        if (getApiSSLAuthentication()) {
            LOG.info("API SSL Authentication is turned on.");
            File httpsPassFile = new File(configsMap.get(CLIENT_API_SSL_KSTR_DIR_NAME_KEY) + File.separator
                    + configsMap.get(CLIENT_API_SSL_CRT_PASS_FILE_NAME_KEY));

            if (httpsPassFile.exists()) {
                LOG.info("Reading password from existing file");
                try {
                    password = FileUtils.readFileToString(httpsPassFile);
                    password = password.replaceAll("\\p{Cntrl}", "");
                } catch (IOException e) {
                    e.printStackTrace();
                    throw new RuntimeException(
                            "Error reading certificate password from" + " file " + httpsPassFile.getAbsolutePath());
                }
            } else {
                LOG.error("There is no keystore for https UI connection.");
                LOG.error("Run \"tbds-server setup-https\" or set " + Configuration.API_USE_SSL + " = false.");
                throw new RuntimeException(
                        "Error reading certificate password from " + "file " + httpsPassFile.getAbsolutePath());

            }

            configsMap.put(CLIENT_API_SSL_CRT_PASS_KEY, password);
        }

        loadSSLParams();
    }

    /**
     * Get the property value for the given key.
     *
     * @return the property value
     */
    public String getProperty(String key) {
        return properties.getProperty(key);
    }

    /**
     * Loads trusted certificates store properties
     */
    protected void loadSSLParams() {
        if (properties.getProperty(SSL_TRUSTSTORE_PATH_KEY) != null) {
            System.setProperty(JAVAX_SSL_TRUSTSTORE, properties.getProperty(SSL_TRUSTSTORE_PATH_KEY));
        }
        if (properties.getProperty(SSL_TRUSTSTORE_PASSWORD_KEY) != null) {
            String ts_password = readPasswordFromStore(properties.getProperty(SSL_TRUSTSTORE_PASSWORD_KEY));
            if (ts_password != null) {
                System.setProperty(JAVAX_SSL_TRUSTSTORE_PASSWORD, ts_password);
            } else {
                System.setProperty(JAVAX_SSL_TRUSTSTORE_PASSWORD,
                        properties.getProperty(SSL_TRUSTSTORE_PASSWORD_KEY));
            }
        }
        if (properties.getProperty(SSL_TRUSTSTORE_TYPE_KEY) != null) {
            System.setProperty(JAVAX_SSL_TRUSTSTORE_TYPE, properties.getProperty(SSL_TRUSTSTORE_TYPE_KEY));
        }
    }

    private synchronized void loadCredentialProvider() {
        if (!credentialProviderInitialized) {
            try {
                credentialProvider = new CredentialProvider(null, getMasterKeyLocation(), isMasterKeyPersisted());
            } catch (Exception e) {
                LOG.info("Credential provider creation failed. Reason: " + e.getMessage());
                if (LOG.isDebugEnabled()) {
                    e.printStackTrace();
                }
                credentialProvider = null;
            }
            credentialProviderInitialized = true;
        }
    }

    /**
     * Find, read, and parse the configuration file.
     * @return the properties that were found or empty if no file was found
     */
    private static Properties readConfigFile() {
        Properties properties = new Properties();

        //Get property file stream from classpath
        InputStream inputStream = Configuration.class.getClassLoader().getResourceAsStream(CONFIG_FILE);

        if (inputStream == null) {
            throw new RuntimeException(CONFIG_FILE + " not found in classpath");
        }

        // load the properties
        try {
            properties.load(inputStream);
            inputStream.close();
        } catch (FileNotFoundException fnf) {
            LOG.info("No configuration file " + CONFIG_FILE + " found in classpath.", fnf);
        } catch (IOException ie) {
            throw new IllegalArgumentException("Can't read configuration file " + CONFIG_FILE, ie);
        }

        return properties;
    }

    /**
     * Get the views directory.
     *
     * @return the views directory
     */
    public File getViewsDir() {
        String fileName = properties.getProperty(VIEWS_DIR, VIEWS_DIR_DEFAULT);
        return new File(fileName);
    }

    /**
     * Determine whether or not view validation is enabled.
     *
     * @return true if view validation is enabled
     */
    public boolean isViewValidationEnabled() {
        return "true".equalsIgnoreCase(properties.getProperty(VIEWS_VALIDATE, VIEWS_VALIDATE_DEFAULT));
    }

    public File getBootStrapDir() {
        String fileName = properties.getProperty(BOOTSTRAP_DIR, BOOTSTRAP_DIR_DEFAULT);
        return new File(fileName);
    }

    public String getBootStrapScript() {
        return properties.getProperty(BOOTSTRAP_SCRIPT, BOOTSTRAP_SCRIPT_DEFAULT);
    }

    public String getBootSetupAgentScript() {
        return properties.getProperty(BOOTSTRAP_SETUP_AGENT_SCRIPT,
                "/usr/lib/python2.6/site-packages/ambari_server/setupAgent.py");
    }

    public String getAgentDefaultLoginUser() {
        return properties.getProperty(BOOTSTRAP_AGENT_DEFAULT_LOGIN_USER_KEY,
                BOOTSTRAP_AGENT_DEFAULT_LOGIN_USER_DEFAULT);
    }

    public String getAgentDefaultLoginPassword() {
        return properties.getProperty(BOOTSTRAP_AGENT_DEFAULT_LOGIN_PASSWROD_KEY,
                BOOTSTRAP_AGENT_DEFAULT_LOGIN_PASSWROD_DEFAULT);
    }

    public String getBootstrapSSHUser() {
        return properties.getProperty(BOOTSTRAP_SSH_USER_KEY, BOOTSTRAP_SSH_USER_DEFAULT);
    }

    public String getBootSetupAgentPassword() {
        String pass = configsMap.get(PASSPHRASE_KEY);

        if (null != pass) {
            return pass;
        }

        // fallback
        return properties.getProperty(BOOTSTRAP_SETUP_AGENT_PASSWORD, "password");
    }

    public File getRecommendationsDir() {
        String fileName = properties.getProperty(RECOMMENDATIONS_DIR, RECOMMENDATIONS_DIR_DEFAULT);
        return new File(fileName);
    }

    public String getStackAdvisorScript() {
        return properties.getProperty(STACK_ADVISOR_SCRIPT, STACK_ADVISOR_SCRIPT_DEFAULT);
    }

    /**
     * Get the map with server config parameters.
     * Keys - public constants of this class
     * @return the map with server config parameters
     */
    public Map<String, String> getConfigsMap() {
        return configsMap;
    }

    /**
     * Checks if CSRF protection enabled
     * @return true if CSRF protection filter should be enabled
     */
    public boolean csrfProtectionEnabled() {
        return "true"
                .equalsIgnoreCase(properties.getProperty(API_CSRF_PREVENTION_KEY, API_CSRF_PREVENTION_DEFAULT));
    }

    /**
     * Gets client security type
     * @return appropriate ClientSecurityType
     */
    public ClientSecurityType getClientSecurityType() {
        return ClientSecurityType.fromString(properties.getProperty(CLIENT_SECURITY_KEY));
    }

    public void setClientSecurityType(ClientSecurityType type) {
        properties.setProperty(CLIENT_SECURITY_KEY, type.toString());
    }

    public void setLdap(String host, String userClass, String userNameAttr, String groupClass, String groupName,
            String groupMember, String baseDN, boolean anon, String managerDN, String managerPass) {
        properties.setProperty(LDAP_PRIMARY_URL_KEY, host);
        properties.setProperty(LDAP_USER_OBJECT_CLASS_KEY, userClass);
        properties.setProperty(LDAP_USERNAME_ATTRIBUTE_KEY, userNameAttr);
        properties.setProperty(LDAP_GROUP_OBJECT_CLASS_KEY, groupClass);
        properties.setProperty(LDAP_GROUP_NAMING_ATTR_KEY, groupName);
        properties.setProperty(LDAP_GROUP_MEMEBERSHIP_ATTR_KEY, groupMember);
        properties.setProperty(LDAP_BASE_DN_KEY, baseDN);
        properties.setProperty(LDAP_BIND_ANONYMOUSLY_KEY, String.valueOf(anon));
        properties.setProperty(LDAP_MANAGER_DN_KEY, managerDN);
        properties.setProperty(LDAP_MANAGER_PASSWORD_KEY, managerPass);
    }

    public String getWebAppDir() {
        LOG.info("Web App DIR test " + properties.getProperty(WEBAPP_DIR));
        return properties.getProperty(WEBAPP_DIR, "web");
    }

    /**
     * Get the file that will be used for host mapping.
     * @return null if such a file is not present, value if present.
     */
    public String getHostsMapFile() {
        LOG.info("Hosts Mapping File " + properties.getProperty(SRVR_HOSTS_MAPPING));
        return properties.getProperty(SRVR_HOSTS_MAPPING);
    }

    /**
     * Gets ambari stack-path
     * @return String
     */
    public String getMetadataPath() {
        return properties.getProperty(METADETA_DIR_PATH);
    }

    /**
     * Gets ambari common services path
     * @return String
     */
    public String getCommonServicesPath() {
        return properties.getProperty(COMMON_SERVICES_DIR_PATH);
    }

    public String getServerVersionFilePath() {
        return properties.getProperty(SERVER_VERSION_FILE);
    }

    /**
     * Check to see if the API should be authenticated or not
     * @return false if not, true if the authentication is enabled.
     */
    public boolean getApiAuthentication() {
        return ("true".equals(properties.getProperty(API_AUTHENTICATE, "false")));
    }

    /**
     * Gets ssl api port
     * @return int
     */
    public int getClientSSLApiPort() {
        return Integer.parseInt(
                properties.getProperty(CLIENT_API_SSL_PORT_KEY, String.valueOf(CLIENT_API_SSL_PORT_DEFAULT)));
    }

    /**
     * Check to see if the API should be authenticated via ssl or not
     * @return false if not, true if ssl needs to be used.
     */
    public boolean getApiSSLAuthentication() {
        return ("true".equals(properties.getProperty(API_USE_SSL, "false")));
    }

    /**
     * Check to see if two-way SSL auth should be used between server and agents
     * or not
     *
     * @return true two-way SSL authentication is enabled
     */
    public boolean getTwoWaySsl() {
        return ("true".equals(properties.getProperty(SRVR_TWO_WAY_SSL_KEY, SRVR_TWO_WAY_SSL_DEFAULT)));
    }

    /**
     * Check persistence type Ambari Server should use. Possible values:
     * in-memory - use in-memory Derby database to store data
     * local - use local Postgres instance
     * remote - use provided jdbc driver name and url to connect to database
     */
    public PersistenceType getPersistenceType() {
        String value = properties.getProperty(SERVER_PERSISTENCE_TYPE_KEY, SERVER_PERSISTENCE_TYPE_DEFAULT);
        return PersistenceType.fromString(value);
    }

    public String getDatabaseDriver() {
        if (getPersistenceType() != PersistenceType.IN_MEMORY) {
            return properties.getProperty(SERVER_JDBC_DRIVER_KEY, JDBC_LOCAL_DRIVER);
        } else {
            return JDBC_IN_MEMROY_DRIVER;
        }
    }

    public String getDatabaseUrl() {
        if (getPersistenceType() != PersistenceType.IN_MEMORY) {
            String URI = properties.getProperty(SERVER_JDBC_URL_KEY);
            if (URI != null) {
                return URI;
            } else {
                return getLocalDatabaseUrl();
            }
        } else {
            return JDBC_IN_MEMORY_URL;
        }
    }

    public String getLocalDatabaseUrl() {
        String dbName = properties.getProperty(SERVER_DB_NAME_KEY);
        if (dbName == null || dbName.isEmpty()) {
            throw new RuntimeException("Server DB Name is not configured!");
        }

        return JDBC_LOCAL_URL + dbName;
    }

    public String getDatabaseUser() {
        return properties.getProperty(SERVER_JDBC_USER_NAME_KEY, SERVER_JDBC_USER_NAME_DEFAULT);
    }

    public String getDatabasePassword() {
        String passwdProp = properties.getProperty(SERVER_JDBC_USER_PASSWD_KEY);
        String dbpasswd = null;
        if (CredentialProvider.isAliasString(passwdProp)) {
            dbpasswd = readPasswordFromStore(passwdProp);
        }

        if (dbpasswd != null) {
            return dbpasswd;
        } else {
            return readPasswordFromFile(passwdProp, SERVER_JDBC_USER_PASSWD_DEFAULT);
        }
    }

    public String getRcaDatabaseDriver() {
        return properties.getProperty(SERVER_JDBC_RCA_DRIVER_KEY, JDBC_RCA_LOCAL_DRIVER);
    }

    public String getRcaDatabaseUrl() {
        return properties.getProperty(SERVER_JDBC_RCA_URL_KEY, JDBC_RCA_LOCAL_URL);
    }

    public String getRcaDatabaseUser() {
        return properties.getProperty(SERVER_JDBC_RCA_USER_NAME_KEY, SERVER_JDBC_RCA_USER_NAME_DEFAULT);
    }

    public String getRcaDatabasePassword() {
        String passwdProp = properties.getProperty(SERVER_JDBC_RCA_USER_PASSWD_KEY);
        if (passwdProp != null) {
            String dbpasswd = readPasswordFromStore(passwdProp);
            if (dbpasswd != null) {
                return dbpasswd;
            }
        }
        return readPasswordFromFile(passwdProp, SERVER_JDBC_RCA_USER_PASSWD_DEFAULT);
    }

    private String readPasswordFromFile(String filePath, String defaultPassword) {
        if (filePath == null) {
            LOG.debug("DB password file not specified - using default");
            return defaultPassword;
        } else {
            LOG.debug("Reading password from file {}", filePath);
            String password;
            try {
                password = FileUtils.readFileToString(new File(filePath));
                password = StringUtils.chomp(password);
            } catch (IOException e) {
                throw new RuntimeException("Unable to read database password", e);
            }
            return password;
        }
    }

    String readPasswordFromStore(String aliasStr) {
        String password = null;
        loadCredentialProvider();
        if (credentialProvider != null) {
            char[] result = null;
            try {
                result = credentialProvider.getPasswordForAlias(aliasStr);
            } catch (AmbariException e) {
                LOG.error("Error reading from credential store.");
                e.printStackTrace();
            }
            if (result != null) {
                password = new String(result);
            } else {
                LOG.error("Cannot read password for alias = " + aliasStr);
            }
        }
        return password;
    }

    /**
     * Gets parameters of LDAP server to connect to
     * @return LdapServerProperties object representing connection parameters
     */
    public LdapServerProperties getLdapServerProperties() {
        LdapServerProperties ldapServerProperties = new LdapServerProperties();

        ldapServerProperties.setPrimaryUrl(properties.getProperty(LDAP_PRIMARY_URL_KEY, LDAP_PRIMARY_URL_DEFAULT));
        ldapServerProperties.setSecondaryUrl(properties.getProperty(LDAP_SECONDARY_URL_KEY));
        ldapServerProperties.setUseSsl("true".equalsIgnoreCase(properties.getProperty(LDAP_USE_SSL_KEY)));
        ldapServerProperties.setAnonymousBind("true".equalsIgnoreCase(
                properties.getProperty(LDAP_BIND_ANONYMOUSLY_KEY, LDAP_BIND_ANONYMOUSLY_DEFAULT)));
        ldapServerProperties.setManagerDn(properties.getProperty(LDAP_MANAGER_DN_KEY));
        String ldapPasswordProperty = properties.getProperty(LDAP_MANAGER_PASSWORD_KEY);
        String ldapPassword = null;
        if (CredentialProvider.isAliasString(ldapPasswordProperty)) {
            ldapPassword = readPasswordFromStore(ldapPasswordProperty);
        }
        if (ldapPassword != null) {
            ldapServerProperties.setManagerPassword(ldapPassword);
        } else {
            if (ldapPasswordProperty != null && new File(ldapPasswordProperty).exists()) {
                ldapServerProperties.setManagerPassword(readPasswordFromFile(ldapPasswordProperty, ""));
            }
        }
        ldapServerProperties.setBaseDN(properties.getProperty(LDAP_BASE_DN_KEY, LDAP_BASE_DN_DEFAULT));
        ldapServerProperties.setUsernameAttribute(
                properties.getProperty(LDAP_USERNAME_ATTRIBUTE_KEY, LDAP_USERNAME_ATTRIBUTE_DEFAULT));

        ldapServerProperties.setUserBase(properties.getProperty(LDAP_USER_BASE_KEY, LDAP_USER_BASE_DEFAULT));
        ldapServerProperties.setUserObjectClass(
                properties.getProperty(LDAP_USER_OBJECT_CLASS_KEY, LDAP_USER_OBJECT_CLASS_DEFAULT));
        ldapServerProperties
                .setDnAttribute(properties.getProperty(LDAP_DN_ATTRIBUTE_KEY, LDAP_DN_ATTRIBUTE_DEFAULT));

        ldapServerProperties.setGroupBase(properties.getProperty(LDAP_GROUP_BASE_KEY, LDAP_GROUP_BASE_DEFAULT));
        ldapServerProperties.setGroupObjectClass(
                properties.getProperty(LDAP_GROUP_OBJECT_CLASS_KEY, LDAP_GROUP_OBJECT_CLASS_DEFAULT));
        ldapServerProperties.setGroupMembershipAttr(
                properties.getProperty(LDAP_GROUP_MEMEBERSHIP_ATTR_KEY, LDAP_GROUP_MEMBERSHIP_ATTR_DEFAULT));
        ldapServerProperties.setGroupNamingAttr(
                properties.getProperty(LDAP_GROUP_NAMING_ATTR_KEY, LDAP_GROUP_NAMING_ATTR_DEFAULT));
        ldapServerProperties.setAdminGroupMappingRules(
                properties.getProperty(LDAP_ADMIN_GROUP_MAPPING_RULES_KEY, LDAP_ADMIN_GROUP_MAPPING_RULES_DEFAULT));
        ldapServerProperties.setGroupSearchFilter(
                properties.getProperty(LDAP_GROUP_SEARCH_FILTER_KEY, LDAP_GROUP_SEARCH_FILTER_DEFAULT));
        ldapServerProperties.setReferralMethod(properties.getProperty(LDAP_REFERRAL_KEY, LDAP_REFERRAL_DEFAULT));

        if (properties.containsKey(LDAP_GROUP_BASE_KEY) || properties.containsKey(LDAP_GROUP_OBJECT_CLASS_KEY)
                || properties.containsKey(LDAP_GROUP_MEMEBERSHIP_ATTR_KEY)
                || properties.containsKey(LDAP_GROUP_NAMING_ATTR_KEY)
                || properties.containsKey(LDAP_ADMIN_GROUP_MAPPING_RULES_KEY)
                || properties.containsKey(LDAP_GROUP_SEARCH_FILTER_KEY)) {
            ldapServerProperties.setGroupMappingEnabled(true);
        }

        return ldapServerProperties;
    }

    public boolean isLdapConfigured() {
        return Boolean.parseBoolean(properties.getProperty(IS_LDAP_CONFIGURED, IS_LDAP_CONFIGURED_DEFAULT));
    }

    public String getServerOsType() {
        return properties.getProperty(OS_VERSION_KEY, "");
    }

    public String getServerOsFamily() {
        return properties.getProperty(OS_FAMILY_KEY, "");
    }

    public String getMasterHostname(String defaultValue) {
        return properties.getProperty(BOOTSTRAP_MASTER_HOSTNAME, defaultValue);
    }

    public int getClientApiPort() {
        return Integer
                .parseInt(properties.getProperty(CLIENT_API_PORT_KEY, String.valueOf(CLIENT_API_PORT_DEFAULT)));
    }

    public String getOjdbcJarName() {
        return properties.getProperty(OJDBC_JAR_NAME_KEY, OJDBC_JAR_NAME_DEFAULT);
    }

    public String getJavaHome() {
        return properties.getProperty(JAVA_HOME_KEY);
    }

    public String getJDKName() {
        return properties.getProperty(JDK_NAME_KEY);
    }

    public String getJCEName() {
        return properties.getProperty(JCE_NAME_KEY);
    }

    public String getServerDBName() {
        return properties.getProperty(SERVER_DB_NAME_KEY, SERVER_DB_NAME_DEFAULT);
    }

    public String getMySQLJarName() {
        return properties.getProperty(MYSQL_JAR_NAME_KEY, MYSQL_JAR_NAME_DEFAULT);
    }

    public JPATableGenerationStrategy getJPATableGenerationStrategy() {
        return JPATableGenerationStrategy.fromString(System.getProperty(SERVER_JDBC_GENERATE_TABLES_KEY));
    }

    public int getConnectionMaxIdleTime() {
        return Integer.parseInt(properties.getProperty(SERVER_CONNECTION_MAX_IDLE_TIME, String.valueOf("900000")));
    }

    /**
     * @return the name to be used for audit information if there is no
     * logged-in user.  Default is '_anonymous'.
     */
    public String getAnonymousAuditName() {
        return properties.getProperty(ANONYMOUS_AUDIT_NAME_KEY, "_anonymous");
    }

    public boolean isMasterKeyPersisted() {
        String masterKeyLocation = getMasterKeyLocation();
        File f = new File(masterKeyLocation);
        return f.exists();
    }

    public String getMasterKeyLocation() {
        String defaultDir = properties.getProperty(MASTER_KEY_LOCATION,
                properties.getProperty(SRVR_KSTR_DIR_KEY, SRVR_KSTR_DIR_DEFAULT));
        return defaultDir + File.separator + MASTER_KEY_FILENAME_DEFAULT;
    }

    public String getSrvrDisabledCiphers() {
        String disabledCiphers = properties.getProperty(SRVR_DISABLED_CIPHERS,
                properties.getProperty(SRVR_DISABLED_CIPHERS, SRVR_DISABLED_CIPHERS_DEFAULT));
        return disabledCiphers.trim();
    }

    public String getSrvrDisabledProtocols() {
        String disabledProtocols = properties.getProperty(SRVR_DISABLED_PROTOCOLS,
                properties.getProperty(SRVR_DISABLED_PROTOCOLS, SRVR_DISABLED_PROTOCOLS_DEFAULT));
        return disabledProtocols.trim();
    }

    public int getOneWayAuthPort() {
        return Integer.parseInt(
                properties.getProperty(SRVR_ONE_WAY_SSL_PORT_KEY, String.valueOf(SRVR_ONE_WAY_SSL_PORT_DEFAULT)));
    }

    public int getTwoWayAuthPort() {
        return Integer.parseInt(
                properties.getProperty(SRVR_TWO_WAY_SSL_PORT_KEY, String.valueOf(SRVR_TWO_WAY_SSL_PORT_DEFAULT)));
    }

    /**
     * @return custom properties for database connections
     */
    public Map<String, String> getDatabaseCustomProperties() {
        if (null != customDbProperties) {
            return customDbProperties;
        }

        customDbProperties = new HashMap<String, String>();

        for (Entry<Object, Object> entry : properties.entrySet()) {
            String key = entry.getKey().toString();
            String val = entry.getValue().toString();
            if (key.startsWith(SERVER_JDBC_PROPERTIES_PREFIX)) {
                customDbProperties.put(key.substring(SERVER_JDBC_PROPERTIES_PREFIX.length()), val);
            }
        }

        return customDbProperties;
    }

    public Map<String, String> getAmbariProperties() {

        Properties properties = readConfigFile();
        Map<String, String> ambariPropertiesMap = new HashMap<String, String>();

        for (String key : properties.stringPropertyNames()) {
            ambariPropertiesMap.put(key, properties.getProperty(key));
        }
        return ambariPropertiesMap;
    }

    public long getExecutionCommandsCacheSize() {
        String stringValue = properties.getProperty(SERVER_EC_CACHE_SIZE);
        long value = SERVER_EC_CACHE_SIZE_DEFAULT;
        if (stringValue != null) {
            try {
                value = Long.valueOf(stringValue);
            } catch (NumberFormatException ignored) {
            }

        }

        return value;
    }

    /**
     * @return whether staleConfig's flag is cached.
     */
    public boolean isStaleConfigCacheEnabled() {
        String stringValue = properties.getProperty(SERVER_STALE_CONFIG_CACHE_ENABLED_KEY,
                SERVER_STALE_CONFIG_CACHE_ENABLED_DEFAULT);
        return "true".equalsIgnoreCase(stringValue);
    }

    /**
     * @return a string array of suffixes used to validate repo URLs.
     */
    public String[] getRepoValidationSuffixes(String osFamily) {
        String repoSuffixes;

        if (osFamily.equals(UBUNTU_OS)) {
            repoSuffixes = properties.getProperty(REPO_SUFFIX_KEY_UBUNTU, REPO_SUFFIX_UBUNTU);
        } else {
            repoSuffixes = properties.getProperty(REPO_SUFFIX_KEY_DEFAULT, REPO_SUFFIX_DEFAULT);
        }

        return repoSuffixes.split(",");
    }

    public String isExecutionSchedulerClusterd() {
        return properties.getProperty(EXECUTION_SCHEDULER_CLUSTERED, "false");
    }

    public String getExecutionSchedulerThreads() {
        return properties.getProperty(EXECUTION_SCHEDULER_THREADS, DEFAULT_SCHEDULER_THREAD_COUNT);
    }

    public Integer getRequestReadTimeout() {
        return Integer.parseInt(properties.getProperty(REQUEST_READ_TIMEOUT, REQUEST_READ_TIMEOUT_DEFAULT));
    }

    public Integer getRequestConnectTimeout() {
        return Integer.parseInt(properties.getProperty(REQUEST_CONNECT_TIMEOUT, REQUEST_CONNECT_TIMEOUT_DEFAULT));
    }

    public String getExecutionSchedulerConnections() {
        return properties.getProperty(EXECUTION_SCHEDULER_CONNECTIONS, DEFAULT_SCHEDULER_MAX_CONNECTIONS);
    }

    public Long getExecutionSchedulerMisfireToleration() {
        String limit = properties.getProperty(EXECUTION_SCHEDULER_MISFIRE_TOLERATION,
                DEFAULT_EXECUTION_SCHEDULER_MISFIRE_TOLERATION);
        return Long.parseLong(limit);
    }

    public Integer getExecutionSchedulerStartDelay() {
        String delay = properties.getProperty(EXECUTION_SCHEDULER_START_DELAY,
                DEFAULT_SCHEDULER_START_DELAY_SECONDS);
        return Integer.parseInt(delay);
    }

    public Integer getExternalScriptTimeout() {
        return Integer
                .parseInt(properties.getProperty(EXTERNAL_SCRIPT_TIMEOUT_KEY, EXTERNAL_SCRIPT_TIMEOUT_DEFAULT));
    }

    public boolean getParallelStageExecution() {
        return "true".equalsIgnoreCase(configsMap.get(PARALLEL_STAGE_EXECUTION_KEY));
    }

    public String getCustomActionDefinitionPath() {
        return properties.getProperty(CUSTOM_ACTION_DEFINITION_KEY, CUSTOM_ACTION_DEFINITION_DEF_VALUE);
    }

    /**
     * @param isPackageInstallationTask true, if task is for installing packages
     * @return default task timeout in seconds (string representation). This value
     *         is used at python (agent) code.
     */
    public String getDefaultAgentTaskTimeout(boolean isPackageInstallationTask) {
        String key = isPackageInstallationTask ? AGENT_PACKAGE_INSTALL_TASK_TIMEOUT_KEY : AGENT_TASK_TIMEOUT_KEY;
        String defaultValue = isPackageInstallationTask ? AGENT_PACKAGE_INSTALL_TASK_TIMEOUT_DEFAULT
                : AGENT_TASK_TIMEOUT_DEFAULT;
        String value = properties.getProperty(key, defaultValue);
        if (StringUtils.isNumeric(value)) {
            return value;
        } else {
            LOG.warn(String.format("Value of %s (%s) should be a number, " + "falling back to default value (%s)",
                    key, value, defaultValue));
            return defaultValue;
        }
    }

    public String getResourceDirPath() {
        return properties.getProperty(RESOURCES_DIR_KEY, RESOURCES_DIR_DEFAULT);
    }

    public String getSharedResourcesDirPath() {
        return properties.getProperty(SHARED_RESOURCES_DIR_KEY, SHARED_RESOURCES_DIR_DEFAULT);
    }

    public String getServerJDBCPostgresSchemaName() {
        return properties.getProperty(SERVER_JDBC_POSTGRES_SCHEMA_NAME, "");
    }

    /**
     * @return max thread pool size for clients, default 25
     */
    public int getClientThreadPoolSize() {
        return Integer.parseInt(
                properties.getProperty(CLIENT_THREADPOOL_SIZE_KEY, String.valueOf(CLIENT_THREADPOOL_SIZE_DEFAULT)));
    }

    /**
     * @return max thread pool size for agents, default 25
     */
    public int getAgentThreadPoolSize() {
        return Integer.parseInt(
                properties.getProperty(AGENT_THREADPOOL_SIZE_KEY, String.valueOf(AGENT_THREADPOOL_SIZE_DEFAULT)));
    }

    /**
     * Get the view extraction thread pool max size.
     *
     * @return the view extraction thread pool max size
     */
    public int getViewExtractionThreadPoolMaxSize() {
        return Integer.parseInt(properties.getProperty(VIEW_EXTRACTION_THREADPOOL_MAX_SIZE_KEY,
                String.valueOf(VIEW_EXTRACTION_THREADPOOL_MAX_SIZE_DEFAULT)));
    }

    /**
     * Get the view extraction thread pool core size.
     *
     * @return the view extraction thread pool core size
     */
    public int getViewExtractionThreadPoolCoreSize() {
        return Integer.parseInt(properties.getProperty(VIEW_EXTRACTION_THREADPOOL_CORE_SIZE_KEY,
                String.valueOf(VIEW_EXTRACTION_THREADPOOL_CORE_SIZE_DEFAULT)));
    }

    /**
     * Get the view extraction thread pool timeout.
     *
     * @return the view extraction thread pool timeout
     */
    public long getViewExtractionThreadPoolTimeout() {
        return Long.parseLong(properties.getProperty(VIEW_EXTRACTION_THREADPOOL_TIMEOUT_KEY,
                String.valueOf(VIEW_EXTRACTION_THREADPOOL_TIMEOUT_DEFAULT)));
    }

    /**
     * Gets the inactivity timeout value, in seconds, for sessions created in
     * Jetty by Spring Security. Without this timeout value, each request to the
     * REST APIs will create new sessions that are never reaped since their
     * default time is -1.
     *
     * @return the time value or {@code 1800} seconds for default.
     */
    public int getHttpSessionInactiveTimeout() {
        return Integer.parseInt(properties.getProperty(SERVER_HTTP_SESSION_INACTIVE_TIMEOUT, "1800"));
    }

    /**
     * Gets the location of the XML alert template file which contains the
     * velocity templates for outbound notifications.
     *
     * @return the location of the template file, or {@code null} if not defined.
     */
    public String getAlertTemplateFile() {
        return properties.getProperty(ALERT_TEMPLATE_FILE);
    }

    /**
     * Gets the default KDC port to use when no port is specified in KDC hostname
     *
     * @return the default KDC port to use.
     */
    public String getDefaultKdcPort() {
        return properties.getProperty(KDC_PORT_KEY, KDC_PORT_KEY_DEFAULT);
    }

    /**
     * Gets the inactivity timeout value, in milliseconds, for socket connection
     * made to KDC Server for its reachability verification.
     *
     * @return the timeout value as configured in {@code tbds.properties}
     *              or {@code 10000 ms} for default.
     */
    public int getKdcConnectionCheckTimeout() {
        return Integer.parseInt(
                properties.getProperty(KDC_CONNECTION_CHECK_TIMEOUT_KEY, KDC_CONNECTION_CHECK_TIMEOUT_DEFAULT));
    }

    /**
     * Gets the directory where Ambari is to store cached keytab files.
     *
     * @return a File containing the path to the directory to use to store cached keytab files
     */
    public File getKerberosKeytabCacheDir() {
        String fileName = properties.getProperty(KERBEROS_KEYTAB_CACHE_DIR_KEY, KERBEROS_KEYTAB_CACHE_DIR_DEFAULT);
        return new File(fileName);
    }

    /**
     * Gets the type of database by examining the {@link #getDatabaseUrl()} JDBC
     * URL.
     *
     * @return the database type (never {@code null}).
     * @throws RuntimeException
     *           if there no known database type.
     */
    public DatabaseType getDatabaseType() {
        String dbUrl = getDatabaseUrl();
        DatabaseType databaseType;

        if (dbUrl.contains(DatabaseType.POSTGRES.getName())) {
            databaseType = DatabaseType.POSTGRES;
        } else if (dbUrl.contains(DatabaseType.ORACLE.getName())) {
            databaseType = DatabaseType.ORACLE;
        } else if (dbUrl.contains(DatabaseType.MYSQL.getName())) {
            databaseType = DatabaseType.MYSQL;
        } else if (dbUrl.contains(DatabaseType.DERBY.getName())) {
            databaseType = DatabaseType.DERBY;
        } else {
            throw new RuntimeException("The database type could be not determined from the JDBC URL " + dbUrl);
        }

        return databaseType;
    }

    /**
     * Gets the type of connection pool that EclipseLink should use.
     *
     * @return default of {@link ConnectionPoolType#INTERNAL}.
     */
    public ConnectionPoolType getConnectionPoolType() {
        String connectionPoolType = properties.getProperty(SERVER_JDBC_CONNECTION_POOL,
                ConnectionPoolType.INTERNAL.getName());

        if (connectionPoolType.equals(ConnectionPoolType.C3P0.getName())) {
            return ConnectionPoolType.C3P0;
        }

        return ConnectionPoolType.INTERNAL;
    }

    /**
     * Gets the minimum number of connections that should always exist in the
     * connection pool.
     *
     * @return default of {@value #DEFAULT_JDBC_POOL_MIN_CONNECTIONS}
     */
    public int getConnectionPoolMinimumSize() {
        return Integer.parseInt(
                properties.getProperty(SERVER_JDBC_CONNECTION_POOL_MIN_SIZE, DEFAULT_JDBC_POOL_MIN_CONNECTIONS));
    }

    /**
     * Gets the maximum number of connections that should even exist in the
     * connection pool.
     *
     * @return default of {@value #DEFAULT_JDBC_POOL_MAX_CONNECTIONS}
     */
    public int getConnectionPoolMaximumSize() {
        return Integer.parseInt(
                properties.getProperty(SERVER_JDBC_CONNECTION_POOL_MAX_SIZE, DEFAULT_JDBC_POOL_MAX_CONNECTIONS));
    }

    /**
     * Gets the maximum amount of time in seconds any connection, whether its been
     * idle or active, should even be in the pool. This will terminate the
     * connection after the expiration age and force new connections to be opened.
     *
     * @return default of {@value #DEFAULT_JDBC_POOL_MAX_AGE_SECONDS}
     */
    public int getConnectionPoolMaximumAge() {
        return Integer.parseInt(
                properties.getProperty(SERVER_JDBC_CONNECTION_POOL_MAX_AGE, DEFAULT_JDBC_POOL_MAX_AGE_SECONDS));
    }

    /**
     * Gets the maximum amount of time in seconds that an idle connection can
     * remain in the pool. This should always be greater than the value returned
     * from {@link #getConnectionPoolMaximumExcessIdle()}
     *
     * @return default of {@value #DEFAULT_JDBC_POOL_MAX_IDLE_TIME_SECONDS}
     */
    public int getConnectionPoolMaximumIdle() {
        return Integer.parseInt(properties.getProperty(SERVER_JDBC_CONNECTION_POOL_MAX_IDLE_TIME,
                DEFAULT_JDBC_POOL_MAX_IDLE_TIME_SECONDS));
    }

    /**
     * Gets the maximum amount of time in seconds that connections beyond the
     * minimum pool size should remain in the pool. This should always be less
     * than than the value returned from {@link #getConnectionPoolMaximumIdle()}
     *
     * @return default of {@value #DEFAULT_JDBC_POOL_EXCESS_MAX_IDLE_TIME_SECONDS}
     */
    public int getConnectionPoolMaximumExcessIdle() {
        return Integer.parseInt(properties.getProperty(SERVER_JDBC_CONNECTION_POOL_MAX_IDLE_TIME_EXCESS,
                DEFAULT_JDBC_POOL_EXCESS_MAX_IDLE_TIME_SECONDS));
    }

    /**
     * Gets the number of connections that should be retrieved when the pool size
     * must increase. It's wise to set this higher than 1 since the assumption is
     * that a pool that needs to grow should probably grow by more than 1.
     *
     * @return default of {@value #DEFAULT_JDBC_POOL_ACQUISITION_SIZE}
     */
    public int getConnectionPoolAcquisitionSize() {
        return Integer.parseInt(properties.getProperty(SERVER_JDBC_CONNECTION_POOL_AQUISITION_SIZE,
                DEFAULT_JDBC_POOL_ACQUISITION_SIZE));
    }

    /**
     * Gets the number of seconds in between testing each idle connection in the
     * connection pool for validity.
     *
     * @return default of {@value #DEFAULT_JDBC_POOL_IDLE_TEST_INTERVAL}
     */
    public int getConnectionPoolIdleTestInternval() {
        return Integer.parseInt(properties.getProperty(SERVER_JDBC_CONNECTION_POOL_IDLE_TEST_INTERVAL,
                DEFAULT_JDBC_POOL_IDLE_TEST_INTERVAL));
    }

}