| /** |
| * 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.apex.malhar.contrib.couchbase; |
| |
| import java.io.IOException; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.TimeUnit; |
| |
| import javax.annotation.Nonnull; |
| import javax.validation.constraints.Min; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.apache.apex.malhar.lib.db.Connectable; |
| |
| import com.couchbase.client.CouchbaseClient; |
| import com.couchbase.client.CouchbaseConnectionFactoryBuilder; |
| import com.couchbase.client.vbucket.ConfigurationProvider; |
| import com.couchbase.client.vbucket.ConfigurationProviderHTTP; |
| import com.couchbase.client.vbucket.config.Bucket; |
| import com.couchbase.client.vbucket.config.Config; |
| |
| import com.datatorrent.netlet.util.DTThrowable; |
| |
| /** |
| * CouchBaseStore which provides connect methods to Couchbase data store. |
| * |
| * @since 2.0.0 |
| */ |
| public class CouchBaseStore implements Connectable |
| { |
| |
| private static final Logger logger = LoggerFactory.getLogger(CouchBaseStore.class); |
| @Nonnull |
| protected String bucket; |
| |
| public String getBucket() |
| { |
| return bucket; |
| } |
| |
| public void setBucket(String bucket) |
| { |
| this.bucket = bucket; |
| } |
| |
| @Nonnull |
| protected String password; |
| @Nonnull |
| protected String userConfig; |
| |
| public String getUserConfig() |
| { |
| return userConfig; |
| } |
| |
| public void setUserConfig(String userConfig) |
| { |
| this.userConfig = userConfig; |
| } |
| |
| public String getPasswordConfig() |
| { |
| return passwordConfig; |
| } |
| |
| public void setPasswordConfig(String passwordConfig) |
| { |
| this.passwordConfig = passwordConfig; |
| } |
| |
| @Nonnull |
| protected String passwordConfig; |
| |
| @Nonnull |
| protected String uriString; |
| |
| protected transient CouchbaseClient client; |
| @Min(1) |
| protected Integer queueSize = 100; |
| |
| public Integer getQueueSize() |
| { |
| return queueSize; |
| } |
| |
| public void setQueueSize(Integer queueSize) |
| { |
| this.queueSize = queueSize; |
| } |
| |
| protected Integer maxTuples = 1000; |
| protected int blockTime = 1000; |
| protected long timeout = 10000; |
| protected int shutdownTimeout = 60; |
| |
| public long getTimeout() |
| { |
| return timeout; |
| } |
| |
| public void setTimeout(long timeout) |
| { |
| this.timeout = timeout; |
| } |
| |
| public int getBlockTime() |
| { |
| return blockTime; |
| } |
| |
| public String getUriString() |
| { |
| return uriString; |
| } |
| |
| public void setBlockTime(int blockTime) |
| { |
| this.blockTime = blockTime; |
| } |
| |
| public Integer getMaxTuples() |
| { |
| return maxTuples; |
| } |
| |
| public void setMaxTuples(Integer maxTuples) |
| { |
| this.maxTuples = maxTuples; |
| } |
| |
| |
| |
| public int getShutdownTimeout() |
| { |
| return shutdownTimeout; |
| } |
| |
| public void setShutdownTimeout(int shutdownTimeout) |
| { |
| this.shutdownTimeout = shutdownTimeout; |
| } |
| |
| transient List<URI> baseURIs = new ArrayList<URI>(); |
| |
| public CouchBaseStore() |
| { |
| client = null; |
| bucket = "default"; |
| } |
| |
| public CouchbaseClient getInstance() |
| { |
| return client; |
| } |
| |
| /** |
| * setter for password |
| * |
| * @param password |
| */ |
| public void setPassword(String password) |
| { |
| this.password = password; |
| } |
| |
| public void setUriString(String uriString) |
| { |
| this.uriString = uriString; |
| } |
| |
| public Config getConf() |
| { |
| try { |
| connect(); |
| } catch (IOException ex) { |
| DTThrowable.rethrow(ex); |
| } |
| ConfigurationProvider configurationProvider = new ConfigurationProviderHTTP(baseURIs, userConfig, passwordConfig); |
| Bucket configBucket = configurationProvider.getBucketConfiguration(bucket); |
| Config conf = configBucket.getConfig(); |
| try { |
| disconnect(); |
| } catch (IOException ex) { |
| DTThrowable.rethrow(ex); |
| } |
| return conf; |
| } |
| |
| @Override |
| public void connect() throws IOException |
| { |
| String[] tokens = uriString.split(","); |
| URI uri = null; |
| for (String url : tokens) { |
| try { |
| uri = new URI("http", url, "/pools", null, null); |
| } catch (URISyntaxException ex) { |
| DTThrowable.rethrow(ex); |
| } |
| baseURIs.add(uri); |
| } |
| try { |
| CouchbaseConnectionFactoryBuilder cfb = new CouchbaseConnectionFactoryBuilder(); |
| cfb.setOpTimeout(timeout); // wait up to 10 seconds for an operation to succeed |
| cfb.setOpQueueMaxBlockTime(blockTime); // wait up to 10 second when trying to enqueue an operation |
| client = new CouchbaseClient(cfb.buildCouchbaseConnection(baseURIs, bucket, password)); |
| //client = new CouchbaseClient(baseURIs, "default", ""); |
| } catch (IOException e) { |
| logger.error("Error connecting to Couchbase:", e); |
| DTThrowable.rethrow(e); |
| } |
| } |
| |
| public CouchbaseClient connectServer(String urlString) throws IOException |
| { |
| ArrayList<URI> nodes = new ArrayList<URI>(); |
| CouchbaseClient clientPartition = null; |
| try { |
| nodes.add(new URI("http",urlString,"/pools", null, null)); |
| } catch (URISyntaxException ex) { |
| DTThrowable.rethrow(ex); |
| } |
| try { |
| clientPartition = new CouchbaseClient(nodes, bucket, password); |
| } catch (IOException e) { |
| logger.error("Error connecting to Couchbase:", e); |
| DTThrowable.rethrow(e); |
| } |
| return clientPartition; |
| |
| } |
| |
| @Override |
| public boolean isConnected() |
| { |
| // Not applicable for Couchbase |
| return false; |
| } |
| |
| @Override |
| public void disconnect() throws IOException |
| { |
| if (client != null) { |
| client.shutdown(shutdownTimeout, TimeUnit.SECONDS); |
| } |
| } |
| |
| } |