org.apache.phoenix.loadbalancer.service.LoadBalanceZookeeperConfImpl.java Source code

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Here is the source code for org.apache.phoenix.loadbalancer.service.LoadBalanceZookeeperConfImpl.java

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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.phoenix.loadbalancer.service;

import com.google.common.annotations.VisibleForTesting;
import com.google.common.net.HostAndPort;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.phoenix.query.QueryServices;
import org.apache.phoenix.query.QueryServicesOptions;
import org.apache.zookeeper.ZooDefs;
import org.apache.zookeeper.data.ACL;
import org.apache.zookeeper.data.Id;

import java.util.Arrays;
import java.util.List;

public class LoadBalanceZookeeperConfImpl implements LoadBalanceZookeeperConf {

    private Configuration configuration;

    public LoadBalanceZookeeperConfImpl() {
        this.configuration = HBaseConfiguration.create();
    }

    public LoadBalanceZookeeperConfImpl(Configuration configuration) {
        this.configuration = configuration;
    }

    @VisibleForTesting
    public void setConfiguration(Configuration configuration) {
        this.configuration = configuration;
    }

    @Override
    public String getQueryServerBasePath() {
        return configuration.get(QueryServices.PHOENIX_QUERY_SERVER_CLUSTER_BASE_PATH,
                QueryServicesOptions.DEFAULT_PHOENIX_QUERY_SERVER_CLUSTER_BASE_PATH);
    }

    @Override
    public String getServiceName() {
        return configuration.get(QueryServices.PHOENIX_QUERY_SERVER_SERVICE_NAME,
                QueryServicesOptions.DEFAULT_PHOENIX_QUERY_SERVER_SERVICE_NAME);
    }

    @Override
    public String getZkConnectString() {
        return String.format("%s:%s", configuration.get(QueryServices.ZOOKEEPER_QUORUM_ATTRIB, "localhost"),
                configuration.get(QueryServices.ZOOKEEPER_PORT_ATTRIB, "2181"));
    }

    private String getZkLbUserName() {
        return configuration.get(QueryServices.PHOENIX_QUERY_SERVER_ZK_ACL_USERNAME,
                QueryServicesOptions.DEFAULT_PHOENIX_QUERY_SERVER_ZK_ACL_USERNAME);
    }

    private String getZkLbPassword() {
        return configuration.get(QueryServices.PHOENIX_QUERY_SERVER_ZK_ACL_PASSWORD,
                QueryServicesOptions.DEFAULT_PHOENIX_QUERY_SERVER_ZK_ACL_PASSWORD);
    }

    @Override
    public List<ACL> getAcls() {
        ACL acl = new ACL();
        acl.setId(new Id("digest", getZkLbUserName() + ":" + getZkLbPassword()));
        acl.setPerms(ZooDefs.Perms.READ);
        return Arrays.asList(acl);
    }

    @Override
    public String getParentPath() {
        String path = String.format("%s/%s", getQueryServerBasePath(), getServiceName());
        return path;
    }

    @Override
    public String getFullPathToNode(HostAndPort hostAndPort) {
        String path = String.format("%s/%s", getParentPath(), hostAndPort.toString());
        return path;
    }
}