org.apache.camel.component.couchbase.CouchbaseProducer Maven / Gradle / Ivy
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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.camel.component.couchbase;
import java.util.Map;
import java.util.concurrent.atomic.AtomicLong;
import com.couchbase.client.java.Bucket;
import com.couchbase.client.java.Collection;
import com.couchbase.client.java.Scope;
import com.couchbase.client.java.kv.GetResult;
import com.couchbase.client.java.kv.MutationResult;
import com.couchbase.client.java.kv.PersistTo;
import com.couchbase.client.java.kv.ReplicateTo;
import org.apache.camel.Exchange;
import org.apache.camel.support.DefaultProducer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import static org.apache.camel.component.couchbase.CouchbaseConstants.COUCHBASE_DELETE;
import static org.apache.camel.component.couchbase.CouchbaseConstants.COUCHBASE_GET;
import static org.apache.camel.component.couchbase.CouchbaseConstants.COUCHBASE_PUT;
import static org.apache.camel.component.couchbase.CouchbaseConstants.DEFAULT_TTL;
import static org.apache.camel.component.couchbase.CouchbaseConstants.HEADER_ID;
import static org.apache.camel.component.couchbase.CouchbaseConstants.HEADER_TTL;
/**
* Couchbase producer generates various type of operations. PUT, GET, and DELETE are currently supported
*/
public class CouchbaseProducer extends DefaultProducer {
private static final Logger LOG = LoggerFactory.getLogger(CouchbaseProducer.class);
private final AtomicLong startId = new AtomicLong();
private final CouchbaseEndpoint endpoint;
private final Bucket client;
private final Collection collection;
private final PersistTo persistTo;
private final ReplicateTo replicateTo;
private final int producerRetryPause;
private final long queryTimeout;
private final long writeQueryTimeout;
public CouchbaseProducer(CouchbaseEndpoint endpoint, Bucket client, int persistTo, int replicateTo) {
super(endpoint);
this.endpoint = endpoint;
this.client = client;
Scope scope;
if (endpoint.getScope() != null) {
scope = client.scope(endpoint.getScope());
} else {
scope = client.defaultScope();
}
if (endpoint.getCollection() != null) {
this.collection = scope.collection(endpoint.getCollection());
} else {
this.collection = client.defaultCollection();
}
if (endpoint.isAutoStartIdForInserts()) {
this.startId.set(endpoint.getStartingIdForInsertsFrom());
}
// timeout and retry strategy
this.producerRetryPause = endpoint.getProducerRetryPause();
this.writeQueryTimeout = endpoint.getWriteQueryTimeout();
this.queryTimeout = endpoint.getQueryTimeout();
switch (persistTo) {
case 0:
this.persistTo = PersistTo.NONE;
break;
case 1:
this.persistTo = PersistTo.ACTIVE;
break;
case 3:
this.persistTo = PersistTo.THREE;
break;
case 4:
this.persistTo = PersistTo.FOUR;
break;
default:
throw new IllegalArgumentException(
"Unsupported persistTo parameter. Supported values are 0 to 4. Currently provided: " + persistTo);
}
switch (replicateTo) {
case 0:
this.replicateTo = ReplicateTo.NONE;
break;
case 1:
this.replicateTo = ReplicateTo.ONE;
break;
case 2:
this.replicateTo = ReplicateTo.TWO;
break;
case 3:
this.replicateTo = ReplicateTo.THREE;
break;
default:
throw new IllegalArgumentException(
"Unsupported replicateTo parameter. Supported values are 0 to 3. Currently provided: " + replicateTo);
}
}
@Override
public void process(Exchange exchange) throws Exception {
Map headers = exchange.getIn().getHeaders();
String id = (headers.containsKey(HEADER_ID)) ? exchange.getIn().getHeader(HEADER_ID, String.class) : endpoint.getId();
int ttl = (headers.containsKey(HEADER_TTL))
? Integer.parseInt(exchange.getIn().getHeader(HEADER_TTL, String.class)) : DEFAULT_TTL;
if (endpoint.isAutoStartIdForInserts()) {
id = Long.toString(startId.getAndIncrement());
} else if (id == null) {
throw new CouchbaseException(HEADER_ID + " is not specified in message header or endpoint URL.", exchange);
}
if (endpoint.getOperation().equals(COUCHBASE_PUT)) {
LOG.trace("Type of operation: PUT");
Object obj = exchange.getIn().getBody();
Boolean result = CouchbaseCollectionOperation.setDocument(collection, id, ttl, obj, persistTo, replicateTo,
writeQueryTimeout, producerRetryPause);
exchange.getMessage().setBody(result);
} else if (endpoint.getOperation().equals(COUCHBASE_GET)) {
LOG.trace("Type of operation: GET");
GetResult result = CouchbaseCollectionOperation.getDocument(collection, id, queryTimeout);
exchange.getMessage().setBody(result);
} else if (endpoint.getOperation().equals(COUCHBASE_DELETE)) {
LOG.trace("Type of operation: DELETE");
MutationResult result
= CouchbaseCollectionOperation.removeDocument(collection, id, writeQueryTimeout, producerRetryPause);
exchange.getMessage().setBody(result.toString());
}
// cleanup the cache headers
exchange.getIn().removeHeader(HEADER_ID);
}
@Override
protected void doShutdown() throws Exception {
super.doShutdown();
if (client != null) {
client.core().shutdown();
}
}
}