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
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
|
/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed 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.
* ============LICENSE_END=========================================================
*/
package org.onap.aai.cacher.dmaap.consumer;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import com.att.nsa.mr.client.MRClientFactory;
import com.att.nsa.mr.client.MRConsumer;
import org.apache.commons.configuration.ConfigurationException;
import org.eclipse.jetty.util.security.Password;
import org.onap.aai.cacher.util.AAIConstants;
import org.onap.aai.exceptions.AAIException;
import org.onap.aai.logging.ErrorLogHelper;
import org.onap.aai.util.AAIConfig;
import java.io.*;
import java.util.Properties;
import java.util.UUID;
import java.util.logging.Level;
public class AAIParentEventConsumer {
protected String fromAppId = "AAIEventConsumerScheduledTask";
protected String COMPONENT = "DMAAP-AAI-EVENT";
private static EELFLogger LOGGER = EELFManager.getInstance().getLogger(AAIParentEventConsumer.class);
protected String preferredRouterFilePath;
protected String aaiDmaapEventConsumerPropertiesFile;
protected String dmaapPropertyHome = "";
protected String dmaapConusmerId = "";
protected String transId = "";
protected Properties aaiDmaapEventConsumerProperties = new Properties();
protected MRConsumer aaiDmaapEventConsumer;
protected DmaapConsumerSingleton dmaapConsumerSingleton;
/*
* Change the client consumer implementation from RestDmaapClientConsumer to
* DmaapClientConsumer when the bug that is making dme2 connections in dev,
* testINT, testEXT is fixed
*/
protected ClientConsumer clientConsumer;
public AAIParentEventConsumer(String consumerPropFile, boolean injestConsumer) throws Exception {
this.transId = UUID.randomUUID().toString();
LOGGER.debug("Initalize the AAIParentEventConsumer");
DmaapConsumerSingleton dmaapConsumerSingleton = DmaapConsumerSingleton.getInstance();
this.dmaapPropertyHome = AAIConstants.AAI_HOME_ETC_APP_PROPERTIES;
if (dmaapConsumerSingleton.getDmaapConsumerId() == null) {
dmaapConsumerSingleton.setDmaapConsumerId(UUID.randomUUID().toString());
}
this.dmaapConusmerId = dmaapConsumerSingleton.getDmaapConsumerId();
processPropertyFiles(consumerPropFile);
if (!injestConsumer) {
this.aaiDmaapEventConsumer = MRClientFactory.createConsumer(this.aaiDmaapEventConsumerProperties.toString());
setConsumer(aaiDmaapEventConsumer);
}
LOGGER.debug("Initialization completed.");
}
public void setConsumer(MRConsumer aaiDmaapEventConsumer) {
this.aaiDmaapEventConsumer = aaiDmaapEventConsumer;
this.clientConsumer = new RestDmaapClientConsumer(this.aaiDmaapEventConsumer,
this.aaiDmaapEventConsumerProperties);
}
public Properties getDmaapEventConsumerProperties() {
return aaiDmaapEventConsumerProperties;
}
private void processPropertyFiles(String consumerPropFile) throws IOException, ConfigurationException {
this.preferredRouterFilePath = this.dmaapPropertyHome + "preferredRoute.txt";
this.aaiDmaapEventConsumerPropertiesFile = this.dmaapPropertyHome + consumerPropFile;
LOGGER.debug("Preferred router file path: " + this.preferredRouterFilePath);
LOGGER.debug("AAI Dmaap Event Consumer Properties path: " + this.aaiDmaapEventConsumerPropertiesFile);
File fo = new File(this.preferredRouterFilePath);
if (!fo.exists()) {
FileNotFoundException ex = new FileNotFoundException(
"Dmaap Route file " + preferredRouterFilePath + " does not exist");
ErrorLogHelper.logException(new AAIException("AAI_4000", ex));
throw ex;
}
fo = new File(this.aaiDmaapEventConsumerPropertiesFile);
if (!fo.exists()) {
FileNotFoundException ex = new FileNotFoundException(
"Dmaap consumer property file " + aaiDmaapEventConsumerPropertiesFile + " does not exist.");
ErrorLogHelper.logException(new AAIException("AAI_4000", ex));
throw ex;
}
modifyProperties();
}
private void modifyProperties() throws ConfigurationException, IOException {
try (Reader reader = new FileReader(new File(this.aaiDmaapEventConsumerPropertiesFile))) {
this.aaiDmaapEventConsumerProperties.load(reader);
}
aaiDmaapEventConsumerProperties.setProperty("id", this.dmaapConusmerId);
LOGGER.debug("Updated " + this.aaiDmaapEventConsumerPropertiesFile + " id " + this.dmaapConusmerId);
aaiDmaapEventConsumerProperties.setProperty("DME2preferredRouterFilePath", this.preferredRouterFilePath);
if (aaiDmaapEventConsumerProperties.getProperty("password") != null
&& aaiDmaapEventConsumerProperties.getProperty("password").startsWith("OBF:")) {
aaiDmaapEventConsumerProperties.setProperty("password",
Password.deobfuscate(aaiDmaapEventConsumerProperties.getProperty("password")));
}
LOGGER.debug("Updated " + this.aaiDmaapEventConsumerPropertiesFile + " DME2preferredRouterFilePath property to "
+ this.preferredRouterFilePath);
if (getIsInitialCheck()) {
aaiDmaapEventConsumerProperties.setProperty("limit", "1");
}
LOGGER.debug("Using limit " + aaiDmaapEventConsumerProperties.getProperty("limit"));
LOGGER.debug("Using filter " + aaiDmaapEventConsumerProperties.getProperty("filter"));
}
public void startProcessing(DmaapProcessor dmaapProcessor) throws Exception {
int fetchFailCounter = 0;
while (AAIConfig.get("aai.cacher.dmaap.consumer.enableEventProcessing").equals("true")) {
try {
LOGGER.debug("processEvents=" + dmaapConsumerSingleton.getProcessEvents() + " isInitialized="
+ dmaapConsumerSingleton.getIsInitialized());
if (dmaapConsumerSingleton.getProcessEvents() || !dmaapConsumerSingleton.getIsInitialized()) {
Iterable<String> eventMessages = clientConsumer.process();
if (dmaapConsumerSingleton.getFirstEventMessage() != null) {
String firstMessage = getFirstMessage();
if (firstMessage != null) {
LOGGER.debug("Processing held dmaap message from the aaiDmaapEvent topic." + transId);
LOGGER.debug("Processing held dmaap message from the aaiDmaapEvent topic: " + firstMessage);
dmaapProcessor.process(firstMessage);
}
}
for (String eventMessage : eventMessages) {
if (!dmaapConsumerSingleton.getProcessEvents()) {
// hold message until app is ready for dmaap processing
setFirstMessage(eventMessage);
LOGGER.debug("Holding new dmaap message from the aaiDmaapEvent topic: " + eventMessage);
dmaapConsumerSingleton.setIsInitialized(true);
continue;
}
LOGGER.debug("Processing held dmaap message from the aaiDmaapEvent topic: " + eventMessage);
dmaapProcessor.process(eventMessage);
}
fetchFailCounter = 0;
} else {
// not processing events
this.aaiDmaapEventConsumer.close();
return;
}
break;
} catch (IOException e) {
fetchFailCounter++;
if (fetchFailCounter > 10) {
ErrorLogHelper.logException(new AAIException("AAI_4000", e));
this.aaiDmaapEventConsumer.close();
throw e;
}
LOGGER.info("ignoring IOException, count is at." + fetchFailCounter);
} catch (Exception e) {
ErrorLogHelper.logException(new AAIException("AAI_4000", e));
e.printStackTrace();
this.aaiDmaapEventConsumer.close();
e.printStackTrace();
throw e;
}
}
this.aaiDmaapEventConsumer.close();
}
/**
* checks on processing events flag
*
* @return
*/
private boolean getIsInitialCheck() {
dmaapConsumerSingleton = DmaapConsumerSingleton.getInstance();
if (dmaapConsumerSingleton.getProcessEvents()) {
return false;
}
return !dmaapConsumerSingleton.getIsInitialized();
}
/**
* used to hold the first event message received before the app is ready to
* process
*/
private void setFirstMessage(String message) {
dmaapConsumerSingleton.setFirstEventMessage(message);
}
/**
* used to get the first event message being held before the app is ready to
* process
*/
private String getFirstMessage() {
String message = dmaapConsumerSingleton.getFirstEventMessage();
dmaapConsumerSingleton.setFirstEventMessage(null);
return message;
}
}
|
