Source Code Cross Referenced for MultiplexerMergeTest.java in  » Net » JGroups-2.4.1-sp3 » org » jgroups » tests » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Net » JGroups 2.4.1 sp3 » org.jgroups.tests 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        package org.jgroups.tests;
002:
003:        import java.io.ByteArrayOutputStream;
004:        import java.io.InputStream;
005:        import java.io.IOException;
006:        import java.io.OutputStream;
007:
008:        import junit.framework.TestCase;
009:        import org.jgroups.Channel;
010:        import org.jgroups.ExtendedMessageListener;
011:        import org.jgroups.JChannelFactory;
012:        import org.jgroups.Message;
013:        import org.jgroups.View;
014:        import org.jgroups.blocks.RpcDispatcher;
015:        import org.jgroups.stack.GossipRouter;
016:        import org.jgroups.util.Util;
017:
018:        /**
019:         * Tests merging with a multiplexer channel
020:         * @author Jerry Gauthier
021:         * @version $Id: MultiplexerMergeTest.java,v 1.1.2.2 2007/03/12 14:52:18 vlada Exp $
022:         */
023:        public class MultiplexerMergeTest extends TestCase {
024:            // stack file must be on classpath
025:            private static final String STACK_FILE = "stacks.xml";
026:            private static final String STACK_NAME = "tunnel";
027:            // router address and port must match definition in stack
028:            private static final int ROUTER_PORT = 12001;
029:            private static final String BIND_ADDR = "127.0.0.1";
030:
031:            private JChannelFactory factory;
032:            private JChannelFactory factory2;
033:            private Channel ch1;
034:            private Channel ch2;
035:            private GossipRouter router;
036:            private RpcDispatcher dispatcher1;
037:            private RpcDispatcher dispatcher2;
038:
039:            public MultiplexerMergeTest(String name) {
040:                super (name);
041:            }
042:
043:            protected void setUp() throws Exception {
044:                super .setUp();
045:
046:                factory = new JChannelFactory();
047:                factory.setMultiplexerConfig(STACK_FILE);
048:
049:                factory2 = new JChannelFactory();
050:                factory2.setMultiplexerConfig(STACK_FILE);
051:
052:                startRouter();
053:
054:                ch1 = factory.createMultiplexerChannel(STACK_NAME, "foo");
055:                dispatcher1 = new RpcDispatcher(ch1, null, null, new Object(),
056:                        false);
057:                dispatcher1.setMessageListener(new MessageListenerAdaptor(
058:                        "listener1", "client1 initial state"));
059:                ch1.connect("bla");
060:                ch1.getState(null, 10000);
061:
062:                ch2 = factory2.createMultiplexerChannel(STACK_NAME, "foo");
063:                dispatcher2 = new RpcDispatcher(ch2, null, null, new Object(),
064:                        false);
065:                dispatcher2.setMessageListener(new MessageListenerAdaptor(
066:                        "listener2", "client2 initial state"));
067:                ch2.connect("bla");
068:                boolean rc = ch2.getState(null, 10000);
069:                //assertTrue("channel2 failed to obtain state successfully", rc);
070:
071:                System.out.println("sleeping for 5 seconds");
072:                Util.sleep(5000);
073:            }
074:
075:            public void tearDown() throws Exception {
076:                super .tearDown();
077:                ch2.close();
078:                ch1.close();
079:                stopRouter();
080:            }
081:
082:            public void testPartitionAndSubsequentMerge() throws Exception {
083:                partitionAndMerge();
084:            }
085:
086:            private void partitionAndMerge() throws Exception {
087:                View v = ch2.getView();
088:                System.out.println("ch2 view is " + v);
089:                assertEquals("channel2 should have 2 members", 2, ch2.getView()
090:                        .size());
091:
092:                System.out
093:                        .println("++ simulating network partition by stopping the GossipRouter");
094:                stopRouter();
095:
096:                System.out.println("sleeping for 20 seconds");
097:                Util.sleep(20000);
098:
099:                v = ch1.getView();
100:                System.out.println("-- ch1.view: " + v);
101:                v = ch2.getView();
102:                System.out.println("-- ch2.view: " + v);
103:
104:                assertEquals(
105:                        "channel2 should have 1 member (channels should have excluded each other)",
106:                        1, v.size());
107:
108:                System.out
109:                        .println("++ simulating merge by starting the GossipRouter again");
110:                router.start();
111:
112:                System.out.println("sleeping for 30 seconds");
113:                Util.sleep(30000);
114:
115:                v = ch1.getView();
116:                System.out.println("-- ch1.view: " + v);
117:                v = ch2.getView();
118:                System.out.println("-- ch2.view: " + v);
119:
120:                assertEquals(
121:                        "channel2 is supposed to have 2 members again after merge",
122:                        2, ch2.getView().size());
123:            }
124:
125:            private void startRouter() throws Exception {
126:                router = new GossipRouter(ROUTER_PORT, BIND_ADDR);
127:                router.start();
128:            }
129:
130:            private void stopRouter() {
131:                router.stop();
132:            }
133:
134:            private final class MessageListenerAdaptor implements 
135:                    ExtendedMessageListener {
136:                private String m_name;
137:                private byte[] m_state = null;
138:
139:                MessageListenerAdaptor(String name, String state) {
140:                    m_name = name;
141:                    if (state != null)
142:                        m_state = state.getBytes();
143:                }
144:
145:                public void receive(Message msg) {
146:                    System.out
147:                            .println(m_name
148:                                    + " MultiplexerMergeTest.receive() - not implemented");
149:                }
150:
151:                public byte[] getState() {
152:                    System.out
153:                            .println(m_name
154:                                    + " MultiplexerMergeTest.getState() - returning byte[] state = "
155:                                    + new String(m_state));
156:                    return m_state;
157:                }
158:
159:                public void setState(byte[] state) {
160:                    System.out
161:                            .println(m_name
162:                                    + " MultiplexerMergeTest.setState(byte[]) - setting state = "
163:                                    + new String(state));
164:                    m_state = state;
165:                }
166:
167:                public void setState(InputStream is) {
168:                    m_state = getInputStreamBytes(is);
169:                    try {
170:                        is.close();
171:                    } catch (IOException e) {
172:                        System.out
173:                                .println(m_name
174:                                        + " MultiplexerMergeTest.setState(InputStream): "
175:                                        + e.toString());
176:                    }
177:                    System.out
178:                            .println(m_name
179:                                    + " MultiplexerMergeTest.setState(InputStream) - setting stream state = "
180:                                    + new String(m_state));
181:                }
182:
183:                public void getState(OutputStream os) {
184:                    System.out
185:                            .println(m_name
186:                                    + " MultiplexerMergeTest.getState(OutputStream) returning stream state = "
187:                                    + new String(m_state));
188:                    try {
189:                        os.write(m_state);
190:                        os.flush();
191:                        os.close();
192:                    } catch (IOException e) {
193:                        System.out
194:                                .println(m_name
195:                                        + " MultiplexerMergeTest.getState(OutputStream) failed: "
196:                                        + e.toString());
197:                    }
198:                }
199:
200:                public byte[] getState(String state_id) {
201:                    System.out
202:                            .println(m_name
203:                                    + " MultiplexerMergeTest.getState(String) - not implemented");
204:                    return null;
205:                }
206:
207:                public void getState(String state_id, OutputStream os) {
208:                    System.out
209:                            .println(m_name
210:                                    + " MultiplexerMergeTest.getState(String, InputStream) - not implemented");
211:                }
212:
213:                public void setState(String state_id, byte[] state) {
214:                    System.out
215:                            .println(m_name
216:                                    + " MultiplexerMergeTest.setState(String, byte[]) - not implemented");
217:                }
218:
219:                public void setState(String state_id, InputStream is) {
220:                    System.out
221:                            .println(m_name
222:                                    + " MultiplexerMergeTest.setState(String, InputStream) - not implemented");
223:                }
224:            }
225:
226:            private static byte[] getInputStreamBytes(InputStream is) {
227:                byte[] b = null;
228:                if (is != null) {
229:                    b = new byte[1024];
230:                    ByteArrayOutputStream baos = new ByteArrayOutputStream();
231:                    try {
232:                        while (true) {
233:                            int bytes = is.read(b);
234:                            if (bytes == -1) {
235:                                break;
236:                            }
237:                            baos.write(b, 0, bytes);
238:                        }
239:                    } catch (Exception e) {
240:                        e.printStackTrace();
241:                    } finally {
242:                        try {
243:                            if (baos != null) {
244:                                b = baos.toByteArray();
245:                                baos.close();
246:                            }
247:                        } catch (Exception e) {
248:                            e.printStackTrace();
249:                        }
250:                    }
251:                }
252:                return b;
253:            }
254:
255:            public static void main(String[] args) {
256:                String[] testCaseName = { MultiplexerMergeTest.class.getName() };
257:                junit.textui.TestRunner.main(testCaseName);
258:            }
259:
260:        }
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