| /* |
| * |
| * 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.qpid.proton.examples; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.qpid.proton.engine.BaseHandler; |
| import org.apache.qpid.proton.engine.Collector; |
| import org.apache.qpid.proton.engine.Delivery; |
| import org.apache.qpid.proton.engine.Event; |
| import org.apache.qpid.proton.engine.Link; |
| import org.apache.qpid.proton.engine.Receiver; |
| |
| public class Drain extends BaseHandler { |
| |
| private int count; |
| private boolean block; |
| private int received; |
| private boolean quiet; |
| |
| public Drain(int count, boolean block, boolean quiet) { |
| this.count = count; |
| this.block = block; |
| this.quiet = quiet; |
| } |
| |
| @Override |
| public void onLinkLocalOpen(Event evt) { |
| Link link = evt.getLink(); |
| if (link instanceof Receiver) { |
| Receiver receiver = (Receiver) link; |
| |
| if (block) { |
| receiver.flow(count); |
| } else { |
| receiver.drain(count); |
| } |
| } |
| } |
| |
| @Override |
| public void onLinkFlow(Event evt) { |
| Link link = evt.getLink(); |
| if (link instanceof Receiver) { |
| Receiver receiver = (Receiver) link; |
| |
| if (!receiver.draining()) { |
| receiver.getSession().getConnection().close(); |
| } |
| } |
| } |
| |
| @Override |
| public void onDelivery(Event evt) { |
| Delivery dlv = evt.getDelivery(); |
| if (dlv.getLink() instanceof Receiver) { |
| Receiver receiver = (Receiver) dlv.getLink(); |
| |
| if (!dlv.isPartial()) { |
| byte[] bytes = new byte[dlv.pending()]; |
| receiver.recv(bytes, 0, bytes.length); |
| Message msg = new Message(bytes); |
| |
| if (!quiet) { |
| System.out.println(String.format("Got message: %s", msg)); |
| } |
| received++; |
| dlv.settle(); |
| } |
| |
| if ((received >= count) || (!block && !receiver.draining())) { |
| receiver.getSession().getConnection().close(); |
| } |
| } |
| } |
| |
| @Override |
| public void onConnectionRemoteClose(Event evt) { |
| System.out.println(String.format("Got %s messages", received)); |
| } |
| |
| public static void main(String[] argv) throws Exception { |
| List<String> switches = new ArrayList<String>(); |
| List<String> args = new ArrayList<String>(); |
| for (String s : argv) { |
| if (s.startsWith("-")) { |
| switches.add(s); |
| } else { |
| args.add(s); |
| } |
| } |
| |
| boolean quiet = switches.contains("-q"); |
| String address = args.isEmpty() || !args.get(0).startsWith("/") ? "//localhost" : args.remove(0); |
| int count = args.isEmpty() ? 1 : Integer.parseInt(args.remove(0)); |
| boolean block = switches.contains("-b"); |
| |
| Collector collector = Collector.Factory.create(); |
| |
| Drain drain = new Drain(count, block, quiet); |
| Driver driver = new Driver(collector, drain); |
| |
| Pool pool = new Pool(collector); |
| pool.incoming(address, null); |
| |
| driver.run(); |
| } |
| } |