Java tutorial
/******************************************************************************* * =========================================================== * Ankush : Big Data Cluster Management Solution * =========================================================== * * (C) Copyright 2014, by Impetus Technologies * * This is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License (LGPL v3) as * published by the Free Software Foundation; * * This software is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this software; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. ******************************************************************************/ /** * */ package com.impetus.ankush.agent; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import java.util.Properties; import org.apache.commons.io.FileUtils; import org.apache.commons.io.FilenameUtils; import com.impetus.ankush.agent.utils.AgentLogger; /** * The Class AgentConf. * * @author Hokam Chauhan */ public class AgentConf { /** The log. */ private static final AgentLogger LOGGER = new AgentLogger(AgentConf.class); /** The properties. */ private Properties properties = new Properties(); /** The file name. */ private String fileName = ""; /** * Gets the string value. * * @param key * the key * @return String value for key */ public String getStringValue(String key) { return this.properties.getProperty(key); } /** * Gets the boolean value. * * @param key * the key * @return Boolean value for key */ public boolean getBooleanValue(String key) { return Boolean.parseBoolean(this.properties.getProperty(key)); } /** * Gets the int value. * * @param key * the key * @return Integer value for key */ public int getIntValue(String key) { if (this.properties.getProperty(key) == null) { return 0; } return Integer.parseInt(this.properties.getProperty(key)); } /** * Instantiates a new agent conf. */ public AgentConf() { try { this.fileName = System.getProperty(Constant.AGENT_INSTALL_DIR) + "/.ankush/agent/conf/agent.properties"; load(); } catch (Exception e) { LOGGER.error(e.getMessage(), e); } } /** * Gets the log upload file url. * * @return the log upload file url */ public String getLogUploadFileUrl() { StringBuilder url = new StringBuilder("http://"); url.append(properties.getProperty(Constant.PROP_SERVER_IP)).append(":"); url.append(properties.getProperty(Constant.PROP_NAME_PORT)); url.append(properties.getProperty(Constant.PROP_NAME_UPLOAD_FILE_URL)); url.append("?category=log"); return url.toString(); } /** * Gets the jar path. * * @return the jar path */ public List<String> getJarPath() { List<String> jars = new ArrayList<String>(); String jarString = properties.getProperty(Constant.PROP_JARPATH); if (jarString != null) { jars.addAll(Arrays.asList(jarString.split(","))); } return jars; } /** * Load the Properties from the given file. * * @param fileName * the file name * @return Properties * @throws IOException * * @throws FileNotFoundException */ public Properties load(String fileName) throws IOException { Properties properties = new Properties(); InputStream inStream = new FileInputStream(fileName); try { properties.load(inStream); } catch (Exception e) { LOGGER.error(e.getMessage(), e); } finally { inStream.close(); } return properties; } /** * Load the properties from the default file. * * @throws IOException * * @throws FileNotFoundException */ public void load() throws IOException { File file = new File(fileName); if (!file.exists()) { String confPath = FilenameUtils.getFullPathNoEndSeparator(fileName); FileUtils.forceMkdir(new File(confPath)); FileUtils.touch(file); } this.properties = load(fileName); } /** * Save the specified properties values in given file. * * @param properties * Properties * @param fileName * String * @throws IOException * * @throws FileNotFoundException */ public void save(Properties properties, String fileName) throws IOException { OutputStream outputStream = new FileOutputStream(fileName); properties.store(outputStream, "Updated at" + System.currentTimeMillis()); outputStream.close(); } /** * Method save. * * @param fileName * String * @throws IOException * Signals that an I/O exception has occurred. */ public void save(String fileName) throws IOException { this.fileName = fileName; save(this.properties, fileName); } /** * Save the own properties values. * * * @throws IOException * * @throws FileNotFoundException */ public void save() throws IOException { save(this.properties, this.fileName); } /** * Gets the properties. * * @return the properties */ public Properties getProperties() { return properties; } /** * Sets the properties. * * @param props * the new properties */ public void setProperties(Properties props) { this.properties = props; } /** * Gets the node info send URL. * * @param propertyName * the property name * @return The URL to update the Node information */ public String getURL(String propertyName) { StringBuilder url = new StringBuilder("http://"); url.append(properties.getProperty(Constant.PROP_SERVER_IP)).append(":"); url.append(properties.getProperty(Constant.PROP_NAME_PORT)); url.append(properties.getProperty(Constant.PROP_NAME_URL_PART)); url.append(properties.getProperty(Constant.PROP_NAME_NODE_ID)).append("/"); url.append(properties.getProperty(propertyName)); return url.toString(); } /** * Gets the node info send URL. * * @param action * the property name * @return The URL to update the Node information */ public String getClusterMonitoringURL(String action) { StringBuilder url = new StringBuilder("http://"); url.append(properties.getProperty(Constant.PROP_SERVER_IP)).append(":"); url.append(properties.getProperty(Constant.PROP_NAME_PORT)); url.append(properties.getProperty(Constant.PROP_NAME_CLUSTER_MONITORING_URL)); url.append(properties.getProperty(Constant.PROP_NAME_CLUSTER_ID)).append("/").append(action); return url.toString(); } /** * Gets the jPS services. * * @return the jPS services */ public List<String> getJPSServices() { return getDataList(Constant.PROP_NAME_JPS_PROCESS_LIST, ","); } /** * Gets the ganglia services. * * @return the ganglia services */ public List<String> getGangliaServices() { return getDataList(Constant.PROP_NAME_GANGLIA_PROCESS_LIST, ","); } /** * Gets the Process Port List. * * @return the Process Port List */ public List<String> getProcessPortList() { return getDataList(Constant.PROP_NAME_PROCESS_PORT_MAP, ","); } /** * Gets the jPS services. * * @return the jPS services */ public List<String> getDataList(String propertyName, String spliter) { List<String> procs = new ArrayList<String>(); try { load(); String processStr = properties.getProperty(propertyName); if (processStr != null) { LOGGER.info(" Process String " + processStr); return Arrays.asList(processStr.split(spliter)); } } catch (Exception e) { LOGGER.error(e.getMessage(), e); } return procs; } public String getServiceManageURL() { StringBuilder url = new StringBuilder("http://"); url.append(properties.getProperty(Constant.PROP_SERVER_IP)).append(":"); url.append(properties.getProperty(Constant.PROP_NAME_PORT)); url.append(properties.getProperty(Constant.PROP_NAME_URL_SERVICE_PART_1)); url.append(properties.getProperty(Constant.PROP_NAME_CLUSTER_ID)).append("/"); url.append(properties.getProperty(Constant.PROP_NAME_URL_SERVICE_PART_2)); return url.toString(); } }