| /** |
| * 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 com.datatorrent.contrib.elasticsearch; |
| |
| import java.io.IOException; |
| |
| import javax.validation.constraints.NotNull; |
| |
| import org.elasticsearch.client.transport.TransportClient; |
| import org.elasticsearch.common.transport.InetSocketTransportAddress; |
| |
| import com.datatorrent.lib.db.Connectable; |
| |
| /** |
| * Elastic search base connector which has basic information for an operator <br> |
| * Properties:<br> |
| * <b>hostname</b>:the host name of the elastic search cluster node to connect to, not null<br> |
| * <b>port</b>:port number of the elastic search cluster node to connect to, not null<br> |
| * <b>client</b>:created when connected to elastic search cluster node <br> |
| * Compile time checks:<br> |
| * None<br> |
| * <br> |
| * Run time checks:<br> |
| * hostName batchSize <br> |
| * <b>data type:</br>the insertion data can support all the Objects mongoDB supports<br> |
| * |
| * <b>Benchmarks</b>: <br> |
| * |
| * @since 2.1.0 |
| * */ |
| |
| public class ElasticSearchConnectable implements Connectable |
| { |
| @NotNull |
| protected String hostName; |
| @NotNull |
| protected int port; |
| |
| protected transient TransportClient client; |
| |
| /** |
| * @return the hostname |
| */ |
| public String getHostName() |
| { |
| return hostName; |
| } |
| |
| /** |
| * @param hostname |
| * the hostname to set |
| */ |
| public void setHostName(String hostname) |
| { |
| this.hostName = hostname; |
| } |
| |
| /** |
| * @return the port |
| */ |
| public int getPort() |
| { |
| return port; |
| } |
| |
| /** |
| * @param port |
| * the port to set |
| */ |
| public void setPort(int port) |
| { |
| this.port = port; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see com.datatorrent.lib.db.Connectable#connect() |
| */ |
| @Override |
| public void connect() throws IOException |
| { |
| client = new TransportClient(); |
| client.addTransportAddress(new InetSocketTransportAddress(hostName, port)); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see com.datatorrent.lib.db.Connectable#disconnect() |
| */ |
| @Override |
| public void disconnect() throws IOException |
| { |
| if (client != null) { |
| client.close(); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see com.datatorrent.lib.db.Connectable#isConnected() |
| */ |
| @Override |
| public boolean isConnected() |
| { |
| if (client != null) { |
| return client.connectedNodes().size() != 0; |
| } |
| return false; |
| } |
| |
| } |