1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/*
*
* 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.qmf2.test;
import javax.jms.Connection;
// Misc Imports
import java.io.*;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.HashMap;
// QMF2 Imports
import org.apache.qpid.qmf2.common.BlockingNotifier;
import org.apache.qpid.qmf2.common.Notifier;
import org.apache.qpid.qmf2.common.QmfEventListener;
import org.apache.qpid.qmf2.common.QmfException;
import org.apache.qpid.qmf2.common.QmfQuery;
import org.apache.qpid.qmf2.common.QmfQueryTarget;
import org.apache.qpid.qmf2.common.WorkItem;
import org.apache.qpid.qmf2.console.Agent;
import org.apache.qpid.qmf2.console.Console;
import org.apache.qpid.qmf2.console.QmfConsoleData;
import org.apache.qpid.qmf2.util.ConnectionHelper;
import static org.apache.qpid.qmf2.common.WorkItem.WorkItemType.*;
/**
* A class used to test a non-blocking query for all Agents using the Notifier/WorkItem Event API. As most of
* the tests and samples use the alternative QmfEventListener API (because the author prefers that) rather than
* the official QMF2 WorkQueue API it seems sensible to include at least one test illustrating that.
*
* Note that in practice the WorkQueue API can also be used without an explicit notifier as one of the
* overloaded Console getNextWorkitem() methods is a blocking call to the WorkQueue that blocks until a WorkItem
* is available. The approach used in this class is for API illustration purposes and the author is unlikely to
* use it for anything useful.
*
* @author Fraser Adams
*/
public final class Test2
{
private Console _console;
public Test2(String url)
{
try
{
System.out.println("*** Starting Test2 asynchronous Agent discovery using WorkQueue API ***");
BlockingNotifier notifier = new BlockingNotifier();
Connection connection = ConnectionHelper.createConnection(url, "{reconnect: true}");
_console = new Console(notifier);
//console.disableAgentDiscovery(); // To miss all notifications this needs done before addConnection()
_console.addConnection(connection);
int count = 0;
while (true)
{
notifier.waitForWorkItem();
System.out.println("WorkItem available, WorkItem count = " + _console.getWorkitemCount());
WorkItem wi;
while ((wi = _console.getNextWorkitem(0)) != null)
{
System.out.println("WorkItem type: " + wi.getType());
if (wi.getType() == AGENT_HEARTBEAT || wi.getType() == AGENT_ADDED ||
wi.getType() == AGENT_DELETED || wi.getType() == AGENT_RESTARTED ||
wi.getType() == EVENT_RECEIVED)
{
Map<String, Object> p = wi.<Map<String, Object>>getParams();
Agent agent = (Agent)p.get("agent");
System.out.println(agent.getName());
}
}
count++;
if (count == 10)
{
System.out.println("Applying Agent Discovery Query ['eq', '_product', ['quote', 'gizmo']]");
System.out.println("This should disable broker Agent events but allow gizmo Agent events");
System.out.println("Run AgentTest to prove this");
QmfQuery query = new QmfQuery(QmfQueryTarget.OBJECT, "['eq', '_product', ['quote', 'gizmo']]");
_console.enableAgentDiscovery(query);
}
}
}
catch (QmfException qmfe)
{
System.err.println("QmfException " + qmfe.getMessage() + " caught: Test2 failed");
}
}
public static void main(String[] args)
{
//System.out.println ("Setting log level to FATAL");
System.setProperty("amqj.logging.level", "FATAL");
String url = (args.length == 1) ? args[0] : "localhost";
Test2 test2 = new Test2(url);
}
}
|
