| /* |
| * |
| * 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.client.protocol; |
| |
| class HeartbeatDiagnostics |
| { |
| private static final Diagnostics _impl = init(); |
| |
| private HeartbeatDiagnostics() |
| { |
| } |
| |
| private static Diagnostics init() |
| { |
| return Boolean.getBoolean("amqj.heartbeat.diagnostics") ? new On() : new Off(); |
| } |
| |
| static void sent() |
| { |
| _impl.sent(); |
| } |
| |
| static void timeout() |
| { |
| _impl.timeout(); |
| } |
| |
| static void received(boolean heartbeat) |
| { |
| _impl.received(heartbeat); |
| } |
| |
| static void init(int delay, int timeout) |
| { |
| _impl.init(delay, timeout); |
| } |
| |
| private static interface Diagnostics |
| { |
| void sent(); |
| void timeout(); |
| void received(boolean heartbeat); |
| void init(int delay, int timeout); |
| } |
| |
| private static class On implements Diagnostics |
| { |
| private final String[] messages = new String[50]; |
| private int i; |
| |
| private void save(String msg) |
| { |
| messages[i++] = msg; |
| if(i >= messages.length){ |
| i = 0;//i.e. a circular buffer |
| } |
| } |
| |
| public void sent() |
| { |
| save(System.currentTimeMillis() + ": sent heartbeat"); |
| } |
| |
| public void timeout() |
| { |
| for(int i = 0; i < messages.length; i++) |
| { |
| if(messages[i] != null) |
| { |
| System.out.println(messages[i]); |
| } |
| } |
| System.out.println(System.currentTimeMillis() + ": timed out"); |
| } |
| |
| public void received(boolean heartbeat) |
| { |
| save(System.currentTimeMillis() + ": received " + (heartbeat ? "heartbeat" : "data")); |
| } |
| |
| public void init(int delay, int timeout) |
| { |
| System.out.println(System.currentTimeMillis() + ": initialised delay=" + delay + ", timeout=" + timeout); |
| } |
| } |
| |
| private static class Off implements Diagnostics |
| { |
| public void sent() |
| { |
| |
| } |
| public void timeout() |
| { |
| |
| } |
| public void received(boolean heartbeat) |
| { |
| |
| } |
| |
| public void init(int delay, int timeout) |
| { |
| |
| } |
| } |
| } |