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
|
/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* Copyright © 2017-2018 European Software Marketing Ltd.
* ================================================================================
* 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.modelloader.restclient;
import com.sun.jersey.core.util.MultivaluedMapImpl; // NOSONAR
import java.io.IOException;
import java.io.StringReader;
import java.net.URI;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.stream.IntStream;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriBuilder;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.onap.aai.cl.api.Logger;
import org.onap.aai.cl.eelf.LoggerFactory;
import org.onap.aai.modelloader.config.ModelLoaderConfig;
import org.onap.aai.modelloader.service.ModelLoaderMsgs;
import org.onap.aai.restclient.client.OperationResult;
import org.onap.aai.restclient.client.RestClient;
import org.onap.aai.restclient.enums.RestAuthenticationMode;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
/**
* Wrapper around the standard A&AI Rest Client interface. This currently uses Jersey client 1.x
*
*/
public class AaiRestClient {
public static final String HEADER_TRANS_ID = "X-TransactionId";
public static final String HEADER_FROM_APP_ID = "X-FromAppId";
public static final String ML_APP_NAME = "ModelLoader";
private static final String RESOURCE_VERSION_PARAM = "resource-version";
private static Logger logger = LoggerFactory.getInstance().getLogger(AaiRestClient.class.getName());
private ModelLoaderConfig config = null;
public AaiRestClient(ModelLoaderConfig config) {
this.config = config;
}
/**
* Send a GET request to the A&AI for a resource.
*
* @param url
* @param transId
* @param mediaType
* @return
*/
public OperationResult getResource(String url, String transId, MediaType mediaType) {
return setupClient().get(url, buildHeaders(transId), mediaType);
}
/**
* Send a PUT request to the A&AI.
*
* @param url - the url
* @param payload - the XML or JSON payload for the request
* @param transId - transaction ID
* @param mediaType - the content type (XML or JSON)
* @return operation result
*/
public OperationResult putResource(String url, String payload, String transId, MediaType mediaType) {
logger.info(ModelLoaderMsgs.AAI_REST_REQUEST_PAYLOAD, payload);
return setupClient().put(url, payload, buildHeaders(transId), mediaType, mediaType);
}
/**
* Send a POST request to the A&AI.
*
* @param url - the url
* @param transId - transaction ID
* @param payload - the XML or JSON payload for the request
* @param mimeType - the content type (XML or JSON)
* @return ClientResponse
*/
public OperationResult postResource(String url, String payload, String transId, MediaType mediaType) {
logger.info(ModelLoaderMsgs.AAI_REST_REQUEST_PAYLOAD, payload);
return setupClient().post(url, payload, buildHeaders(transId), mediaType, mediaType);
}
/**
* Send a DELETE request to the A&AI.
*
* @param url - the url
* @param resourceVersion - the resource-version of the model to delete
* @param transId - transaction ID
* @return ClientResponse
*/
public OperationResult deleteResource(String url, String resourceVersion, String transId) {
URI uri = UriBuilder.fromUri(url).queryParam(RESOURCE_VERSION_PARAM, resourceVersion).build();
return setupClient().delete(uri.toString(), buildHeaders(transId), null);
}
/**
* Does a GET on a resource to retrieve the resource version, and then DELETE that version.
*
* @param url - the url
* @param transId - transaction ID
* @return ClientResponse
*/
public OperationResult getAndDeleteResource(String url, String transId) {
// First, GET the model
OperationResult getResponse = getResource(url, transId, MediaType.APPLICATION_XML_TYPE);
if (getResponse == null || getResponse.getResultCode() != Response.Status.OK.getStatusCode()) {
return getResponse;
}
// Delete the model using the resource version in the response
String resVersion = null;
try {
resVersion = getResourceVersion(getResponse);
} catch (Exception e) {
logger.error(ModelLoaderMsgs.AAI_REST_REQUEST_ERROR, "GET", url, e.getLocalizedMessage());
return null;
}
return deleteResource(url, resVersion, transId);
}
public boolean useBasicAuth() {
return config.getAaiAuthenticationUser() != null && config.getAaiAuthenticationPassword() != null;
}
private RestClient setupClient() {
RestClient restClient = new RestClient();
//Use certs only if SSL is enabled
if (config.useHttpsWithAAI())
{// @formatter:off
restClient.validateServerHostname(false)
.validateServerCertChain(false)
.clientCertFile(config.getAaiKeyStorePath())
.clientCertPassword(config.getAaiKeyStorePassword())
.connectTimeoutMs(120000)
.readTimeoutMs(120000);
// @formatter:on
}
else {
restClient.validateServerHostname(false)
.validateServerCertChain(false)
.connectTimeoutMs(120000)
.readTimeoutMs(120000);
}
if (useBasicAuth()) {
restClient.authenticationMode(RestAuthenticationMode.SSL_BASIC);
restClient.basicAuthUsername(config.getAaiAuthenticationUser());
restClient.basicAuthPassword(config.getAaiAuthenticationPassword());
}
return restClient;
}
/**
* Create the HTTP headers required for an A&AI operation (GET/POST/PUT/DELETE)
*
* @param transId
* @return map of headers
*/
private Map<String, List<String>> buildHeaders(String transId) {
MultivaluedMap<String, String> headers = new MultivaluedMapImpl();
headers.put(HEADER_TRANS_ID, Collections.singletonList(transId));
headers.put(HEADER_FROM_APP_ID, Collections.singletonList(ML_APP_NAME));
return headers;
}
private String getResourceVersion(OperationResult getResponse)
throws ParserConfigurationException, SAXException, IOException {
String respData = getResponse.getResult();
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
DocumentBuilder builder = factory.newDocumentBuilder();
InputSource is = new InputSource(new StringReader(respData));
Document doc = builder.parse(is);
NodeList nodesList = doc.getDocumentElement().getChildNodes();
// @formatter:off
return IntStream.range(0, nodesList.getLength()).mapToObj(nodesList::item)
.filter(childNode -> childNode.getNodeName().equals(RESOURCE_VERSION_PARAM))
.findFirst()
.map(Node::getTextContent)
.orElse(null);
// @formatter:on
}
}
|
