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
|
/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* =============================================================================
* 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.appc.adapter.messaging.dmaap.http;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import java.net.URI;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.onap.appc.adapter.message.Producer;
public class HttpDmaapProducerImpl extends CommonHttpClient implements Producer {
private static final EELFLogger LOG = EELFManager.getInstance().getLogger(HttpDmaapProducerImpl.class);
private static final String CONTENT_TYPE = "application/cambria";
private static final String URL_TEMPLATE = "%s/events/%s";
private List<String> hosts;
private Set<String> topics;
public HttpDmaapProducerImpl() {
//for test purposes
}
public HttpDmaapProducerImpl(Collection<String> urls, String topicName) {
topics = new HashSet<>();
topics.add(topicName);
hosts = new ArrayList<>();
for (String host : urls) {
hosts.add(formatHostString(host));
}
}
@Override
public void updateCredentials(String user, String pass) {
LOG.debug(String.format("Setting auth to %s for %s", user, this.toString()));
this.setBasicAuth(user, pass);
}
@Override
public boolean post(String partition, String data) {
long sent = 0;
try {
HttpPost request = postReq(null);
request.setHeader("Content-Type", CONTENT_TYPE);
request.setEntity(new StringEntity(bodyLine(partition, data)));
sent = topics.stream()
.filter(topic -> sendRequest(request, topic))
.count();
} catch (Exception buildEx) {
LOG.error(
String.format("Failed to build request with string [%s]. Message not sent to any topic. Reason: %s",
data, buildEx.getMessage()),
buildEx);
}
return sent == topics.size();
}
private boolean sendRequest(HttpPost request, String topic) {
boolean successful = false;
String uriStr = String.format(URL_TEMPLATE, hosts.get(0), topic);
try {
request.setURI(new URI(uriStr));
CloseableHttpResponse response = getClient().execute(request);
if (response.getStatusLine().getStatusCode() == 200) {
successful = true;
}
response.close();
} catch (Exception sendEx) {
LOG.error(String.format("Failed to send message to %s. Reason: %s", uriStr, sendEx.getMessage()),
sendEx);
if (hosts.size() > 1) {
String failedUrl = hosts.remove(0);
hosts.add(failedUrl);
LOG.debug(String.format("Moving host %s to the end of the pool. New primary host is %s",
failedUrl, hosts.get(0)));
}
}
return successful;
}
/**
* Format the body for the application/cambria content type with no partitioning. See
*
* @param message
* The message body to format
* @return A string in the application/cambria content type
*/
private String bodyLine(String partition, String message) {
String prt = (partition == null) ? "" : partition;
String msg = (message == null) ? "" : message;
return String.format("%d.%d.%s%s", prt.length(), msg.length(), prt, msg);
}
}
|
