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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.dummyreceiver;
import com.yahoo.concurrent.DaemonThreadFactory;
import com.yahoo.documentapi.messagebus.MessageBusDocumentAccess;
import com.yahoo.documentapi.messagebus.MessageBusParams;
import com.yahoo.documentapi.messagebus.protocol.PutDocumentMessage;
import com.yahoo.documentapi.messagebus.protocol.RemoveDocumentMessage;
import com.yahoo.documentapi.messagebus.protocol.UpdateDocumentMessage;
import com.yahoo.log.LogSetup;
import com.yahoo.messagebus.DestinationSession;
import com.yahoo.messagebus.EmptyReply;
import com.yahoo.messagebus.Error;
import com.yahoo.messagebus.ErrorCode;
import com.yahoo.messagebus.Message;
import com.yahoo.messagebus.MessageHandler;
import com.yahoo.messagebus.Reply;
import com.yahoo.messagebus.network.Identity;
import com.yahoo.messagebus.network.rpc.RPCNetworkParams;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingDeque;
import java.util.concurrent.RejectedExecutionException;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
import static java.lang.System.out;
public class DummyReceiver implements MessageHandler {
private String name = null;
private DestinationSession session;
private MessageBusDocumentAccess da;
private long sleepTime = 0;
private AtomicLong messageCount = new AtomicLong(0);
private long silentNum = 0;
private boolean instant = false;
private ThreadPoolExecutor executor = null;
private int threads = 10;
private BlockingQueue<Runnable> queue;
private boolean verbose = false;
private boolean helpOption = false;
private DummyReceiver() {
}
class Task implements Runnable {
Reply reply;
Task(Reply reply) {
this.reply = reply;
}
public void run() {
if (sleepTime > 0) {
try {
Thread.sleep(sleepTime);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
session.reply(reply);
}
}
private void init() {
MessageBusParams params = new MessageBusParams();
params.setRPCNetworkParams(new RPCNetworkParams().setIdentity(new Identity(name)));
params.setDocumentManagerConfigId("client");
params.getMessageBusParams().setMaxPendingCount(0);
da = new MessageBusDocumentAccess(params);
queue = new LinkedBlockingDeque<>();
session = da.getMessageBus().createDestinationSession("default", true, this);
executor = new ThreadPoolExecutor(threads, threads, 5, TimeUnit.SECONDS, queue, new DaemonThreadFactory());
System.out.println("Registered listener at " + name + "/default with 0 max pending and sleep time of " + sleepTime);
}
@SuppressWarnings("deprecation")
public void handleMessage(Message message) {
long messageCount = this.messageCount.incrementAndGet();
if ( silentNum == 0 ) {
System.out.println("Received message " + message + ". Received " + messageCount + " messages so far. In queue size " + queue.size());
if (verbose) {
if (message instanceof PutDocumentMessage) {
System.out.println(" Document:\n" + ((PutDocumentMessage) message).getDocumentPut().getDocument().toXML(" "));
} else if (message instanceof RemoveDocumentMessage) {
System.out.println(" Document id: " + ((RemoveDocumentMessage) message).getDocumentId());
} else if (message instanceof UpdateDocumentMessage) {
System.out.println(" Update:\n " + ((UpdateDocumentMessage) message).getDocumentUpdate().toString());
}
}
} else {
if ((messageCount % silentNum) == 0) {
System.out.println("Received " + messageCount + " messages so far. In queue size " + queue.size());
}
}
EmptyReply reply = new EmptyReply();
message.swapState(reply);
if ( ! instant ) {
try {
executor.execute(new Task(reply));
} catch (RejectedExecutionException e) {
reply.addError(new Error(ErrorCode.SESSION_BUSY, "Session " + name + "/default is busy"));
session.reply(reply);
}
} else {
session.reply(reply);
}
}
private String getParam(List<String> args, String arg) throws IllegalArgumentException {
try {
return args.remove(0);
} catch (Exception e) {
System.err.println("--" + arg + " requires an argument");
throw new IllegalArgumentException(arg);
}
}
public void help() {
out.println("Simple receiver for messagebus messages. Prints the messages received to stdout.\n" +
"\n" +
"The options are:\n" +
" --instant Reply in message thread." +
" --name arg Slobrok name to register\n" +
" --maxqueuetime arg Adjust the in queue size to have a maximum queue wait period of this many ms (default -1 = unlimited)\n" +
" --silent #nummsg Do not dump anything, but progress every #nummsg\n" +
" --sleeptime arg The number of milliseconds to sleep per message, to simulate processing time\n" +
" --threads arg The number of threads to process the incoming data\n" +
" --verbose If set, dump the contents of certain messages to stdout");
}
private boolean parseArgs(List<String> args) {
try {
while (!args.isEmpty()) {
String arg = args.remove(0);
if (arg.equals("-h") || arg.equals("--help")) {
help();
helpOption = true;
return false;
} else if ("--name".equals(arg)) {
name = getParam(args, arg);
} else if ("--sleeptime".equals(arg)) {
sleepTime = Long.parseLong(getParam(args, arg));
} else if ("--instant".equals(arg)) {
instant = true;
} else if ("--silent".equals(arg)) {
silentNum = Long.parseLong(getParam(args, arg));
} else if ("--threads".equals(arg)) {
threads = Integer.parseInt(getParam(args, arg));
} else if ("--verbose".equals(arg)) {
verbose = true;
} else {
help();
helpOption = true;
return false;
}
}
return true;
} catch (IllegalArgumentException e) {
return false;
}
}
public static void main(String[] args) {
LogSetup.initVespaLogging("dummyreceiver");
DummyReceiver rcv = new DummyReceiver();
if (!rcv.parseArgs(new LinkedList<>(Arrays.asList(args))) && !rcv.helpOption) {
System.exit(1);
}
if (rcv.helpOption) {
System.exit(0); // exit with success instead of returning
}
rcv.init();
while (true) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
|
