blob: 0b318ebfc68b24fcc4330cc319cdac505d1b64e5 (
plain)
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
|
/*
* ============LICENSE_START=======================================================
* ONAP : DCAE
* ================================================================================
* Copyright 2018 TechMahindra
*=================================================================================
* 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.universalvesadapter.service;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
import java.util.Map;
import org.onap.universalvesadapter.configs.DMaapMrUrlConfiguration;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
//import com.att.nsa.mr.client.MRBatchingPublisher;
//import com.att.nsa.mr.client.MRClientFactory;
//import com.att.nsa.mr.client.MRConsumer;
/**
*
* This service will handle all the communication with the DMaap MR API
*
*
* @author kmalbari
*
*/
@Component
public class DMaapService {
@Autowired
private DMaapMrUrlConfiguration dmaapMrUrlObject;
// private MRConsumer cc;
//
// private MRBatchingPublisher pub;
/**
* reads the messages on DMaap MR Topic
*
* @return iterable of messages that will be received on DMaap MR Topic
*
* @throws DMaapException
*/
/*public Iterable<String> consumeFromDMaap() throws DMaapException{
if(null == cc){
try {
cc = MRClientFactory.createConsumer (dmaapMrUrlObject.getConsumerProperties());
} catch (IOException exception) {
throw new DMaapException("Problem creating consumer \nReason : " + exception.getMessage());
}
try {
return cc.fetch();
} catch (Exception exception) {
throw new DMaapException("Problem while fetching messaged from consumer \nReason : " + exception.getMessage());
}
}
return () -> Collections.emptyIterator();
}*/
/**
* sends the messages to DMaap MR Topic
*
*
* @throws DMaapException
*/
/*public void publishToDMaap() throws DMaapException{
if(null == cc){
try {
pub = MRClientFactory.createBatchingPublisher (dmaapMrUrlObject.getPublisherProperties());
} catch (IOException exception) {
throw new DMaapException("Problem creating consumer \nReason : " + exception.getMessage());
}
}
}*/
/**
* @return
*/
public String consume(){
URL url;
StringBuffer incomingJson = null;
incomingJson = new StringBuffer();
try {
url = new URL(dmaapMrUrlObject.getUrl());
//open the connection to the above URL.
URLConnection urlcon = url.openConnection();
Map<String, List<String>> header = urlcon.getHeaderFields();
//print all the fields along with their value.
for (Map.Entry<String, List<String>> mp : header.entrySet())
{
System.out.print(mp.getKey() + " : ");
System.out.println(mp.getValue().toString());
}
System.out.println();
System.out.println("Complete source code of the URL is-");
System.out.println("---------------------------------");
//get the inputstream of the open connection.
BufferedReader br = new BufferedReader(new InputStreamReader
(urlcon.getInputStream()));
String tempString;
//print the source code line by line.
while ((tempString = br.readLine()) != null)
{
System.out.println(tempString);
incomingJson.append(tempString);
}
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return incomingJson.toString();
}
}
|
