| /** |
| * 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.hazelcast.queue; |
| |
| import java.util.Map; |
| |
| import com.hazelcast.core.Hazelcast; |
| import com.hazelcast.core.IQueue; |
| |
| import org.apache.camel.Endpoint; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.component.hazelcast.HazelcastComponentHelper; |
| import org.apache.camel.component.hazelcast.HazelcastConstants; |
| import org.apache.camel.impl.DefaultProducer; |
| |
| /** |
| * |
| */ |
| public class HazelcastQueueProducer extends DefaultProducer { |
| |
| private IQueue<Object> queue; |
| private HazelcastComponentHelper helper = new HazelcastComponentHelper(); |
| |
| public HazelcastQueueProducer(Endpoint endpoint, String queueName) { |
| super(endpoint); |
| this.queue = Hazelcast.getQueue(queueName); |
| } |
| |
| public void process(Exchange exchange) throws Exception { |
| |
| Map<String, Object> headers = exchange.getIn().getHeaders(); |
| |
| // get header parameters |
| int operation = -1; |
| |
| if (headers.containsKey(HazelcastConstants.OPERATION)) { |
| if (headers.get(HazelcastConstants.OPERATION) instanceof String) { |
| operation = helper.lookupOperationNumber((String) headers.get(HazelcastConstants.OPERATION)); |
| } else { |
| operation = (Integer) headers.get(HazelcastConstants.OPERATION); |
| } |
| } |
| |
| switch (operation) { |
| |
| case HazelcastConstants.ADD_OPERATION: |
| this.add(exchange); |
| break; |
| |
| case HazelcastConstants.PUT_OPERATION: |
| this.put(exchange); |
| break; |
| |
| case HazelcastConstants.POLL_OPERATION: |
| this.poll(exchange); |
| break; |
| |
| case HazelcastConstants.PEEK_OPERATION: |
| this.peek(exchange); |
| break; |
| |
| case HazelcastConstants.OFFER_OPERATION: |
| this.offer(exchange); |
| break; |
| |
| case HazelcastConstants.REMOVEVALUE_OPERATION: |
| this.remove(exchange); |
| break; |
| |
| default: |
| throw new IllegalArgumentException(String.format("The value '%s' is not allowed for parameter '%s' on the QUEUE cache.", operation, HazelcastConstants.OPERATION)); |
| } |
| |
| // finally copy headers |
| HazelcastComponentHelper.copyHeaders(exchange); |
| |
| } |
| |
| private void add(Exchange exchange) { |
| Object body = exchange.getIn().getBody(); |
| this.queue.add(body); |
| } |
| |
| private void put(Exchange exchange) throws InterruptedException { |
| Object body = exchange.getIn().getBody(); |
| this.queue.put(body); |
| } |
| |
| private void poll(Exchange exchange) { |
| exchange.getOut().setBody(this.queue.poll()); |
| } |
| |
| private void peek(Exchange exchange) { |
| exchange.getOut().setBody(this.queue.peek()); |
| } |
| |
| private void offer(Exchange exchange) { |
| Object body = exchange.getIn().getBody(); |
| this.queue.offer(body); |
| } |
| |
| private void remove(Exchange exchange) { |
| Object body = exchange.getIn().getBody(); |
| if (body != null) { |
| this.queue.remove(body); |
| } else { |
| this.queue.remove(); |
| } |
| } |
| } |