| /* |
| * 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.brooklyn.entity.messaging.rabbit; |
| |
| import org.apache.brooklyn.entity.messaging.Queue; |
| import org.apache.brooklyn.feed.ssh.SshFeed; |
| import org.apache.brooklyn.feed.ssh.SshPollConfig; |
| import org.apache.brooklyn.feed.ssh.SshPollValue; |
| |
| import com.google.common.base.Function; |
| import com.google.common.base.Functions; |
| |
| public class RabbitQueue extends RabbitDestination implements Queue { |
| |
| private SshFeed sshFeed; |
| |
| public RabbitQueue() { |
| } |
| |
| public String getName() { |
| return getDisplayName(); |
| } |
| |
| @Override |
| public void create() { |
| sensors().set(QUEUE_NAME, getName()); |
| super.create(); |
| } |
| |
| @Override |
| protected void connectSensors() { |
| String runDir = getParent().getRunDir(); |
| String cmd = String.format("%s/sbin/rabbitmqctl list_queues -p /%s | grep '%s'", runDir, getVirtualHost(), getQueueName()); |
| |
| sshFeed = SshFeed.builder() |
| .entity(this) |
| .machine(machine) |
| .poll(new SshPollConfig<Integer>(QUEUE_DEPTH_BYTES) |
| .env(shellEnvironment) |
| .command(cmd) |
| .onFailure(Functions.constant(-1)) |
| .onSuccess(new Function<SshPollValue, Integer>() { |
| @Override public Integer apply(SshPollValue input) { |
| return 0; // TODO parse out queue depth from output |
| }})) |
| .poll(new SshPollConfig<Integer>(QUEUE_DEPTH_MESSAGES) |
| .env(shellEnvironment) |
| .command(cmd) |
| .onFailure(Functions.constant(-1)) |
| .onSuccess(new Function<SshPollValue, Integer>() { |
| @Override public Integer apply(SshPollValue input) { |
| return 0; // TODO parse out queue depth from output |
| }})) |
| .build(); |
| } |
| |
| @Override |
| protected void disconnectSensors() { |
| if (sshFeed != null) sshFeed.stop(); |
| super.disconnectSensors(); |
| } |
| |
| /** |
| * Return the AMQP name for the queue. |
| */ |
| @Override |
| public String getQueueName() { |
| return getName(); |
| } |
| } |