2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Copyright (C) 2017 Amdocs
8 * =============================================================================
9 * Modifications Copyright (C) 2018 Samsung
10 * ================================================================================
11 * Licensed under the Apache License, Version 2.0 (the "License");
12 * you may not use this file except in compliance with the License.
13 * You may obtain a copy of the License at
15 * http://www.apache.org/licenses/LICENSE-2.0
17 * Unless required by applicable law or agreed to in writing, software
18 * distributed under the License is distributed on an "AS IS" BASIS,
19 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
20 * See the License for the specific language governing permissions and
21 * limitations under the License.
23 * ============LICENSE_END=========================================================
26 package org.onap.appc.adapter.rest.impl;
28 import com.att.eelf.configuration.EELFLogger;
29 import com.att.eelf.configuration.EELFManager;
30 import java.util.Iterator;
32 import java.util.function.Supplier;
33 import org.apache.http.HttpEntity;
34 import org.apache.http.HttpResponse;
35 import org.apache.http.client.methods.HttpDelete;
36 import org.apache.http.client.methods.HttpGet;
37 import org.apache.http.client.methods.HttpPost;
38 import org.apache.http.client.methods.HttpPut;
39 import org.apache.http.client.methods.HttpRequestBase;
40 import org.apache.http.entity.StringEntity;
41 import org.apache.http.impl.client.CloseableHttpClient;
42 import org.apache.http.impl.client.HttpClients;
43 import org.apache.http.util.EntityUtils;
44 import org.glassfish.grizzly.http.util.HttpStatus;
45 import org.json.JSONObject;
46 import org.onap.appc.Constants;
47 import org.onap.appc.adapter.rest.RequestFactory;
48 import org.onap.appc.adapter.rest.RestAdapter;
49 import org.onap.appc.configuration.Configuration;
50 import org.onap.appc.configuration.ConfigurationFactory;
51 import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
54 * This class implements the {@link RestAdapter} interface. This interface defines the behaviors that our service
57 public class RestAdapterImpl implements RestAdapter {
60 * The constant for the status code for a failed outcome
62 @SuppressWarnings("nls")
63 private static final String OUTCOME_FAILURE = "failure";
66 * The constant for the status code for a successful outcome
68 @SuppressWarnings("nls")
69 private static final String OUTCOME_SUCCESS = "success";
72 * The logger to be used
74 private final EELFLogger logger = EELFManager.getInstance().getLogger(RestAdapterImpl.class);
77 * A reference to the adapter configuration object.
79 private Configuration configuration;
82 * This default constructor is used as a work around because the activator wasnt getting called
84 public RestAdapterImpl() {
89 * Returns the symbolic name of the adapter
91 * @return The adapter name
92 * @see org.onap.appc.adapter.rest.RestAdapter#getAdapterName()
95 public String getAdapterName() {
96 return configuration.getProperty(Constants.PROPERTY_ADAPTER_NAME);
100 public void commonGet(Map<String, String> params, SvcLogicContext ctx) {
101 logger.info("Run get method");
103 RequestContext rc = new RequestContext(ctx);
106 HttpGet httpGet = (HttpGet) createHttpRequest("GET", params, rc);
107 executeHttpRequest(httpGet, rc);
111 public void commonDelete(Map<String, String> params, SvcLogicContext ctx) {
112 logger.info("Run Delete method");
114 RequestContext rc = new RequestContext(ctx);
117 HttpDelete httpDelete = (HttpDelete) createHttpRequest("DELETE", params, rc);
118 executeHttpRequest(httpDelete, rc);
122 public void commonPost(Map<String, String> params, SvcLogicContext ctx) {
123 logger.info("Run post method");
125 RequestContext rc = new RequestContext(ctx);
128 HttpPost httpPost = (HttpPost) createHttpRequest("POST", params, rc);
129 executeHttpRequest(httpPost, rc);
133 public void commonPut(Map<String, String> params, SvcLogicContext ctx) {
134 logger.info("Run put method");
136 RequestContext rc = new RequestContext(ctx);
139 HttpPut httpPut = (HttpPut) createHttpRequest("PUT", params, rc);
140 executeHttpRequest(httpPut, rc);
143 @SuppressWarnings("static-method")
144 private void doFailure(RequestContext rc, HttpStatus code, String message) {
145 SvcLogicContext svcLogic = rc.getSvcLogicContext();
146 String msg = (message == null) ? code.getReasonPhrase() : message;
147 if (msg.contains("\n")) {
148 msg = msg.substring(msg.indexOf('\n'));
153 status = Integer.toString(code.getStatusCode());
154 } catch (Exception e) {
155 logger.error("Exception occurred", e);
158 svcLogic.setStatus(OUTCOME_FAILURE);
159 svcLogic.setAttribute(Constants.ATTRIBUTE_ERROR_CODE, status);
160 svcLogic.setAttribute(Constants.ATTRIBUTE_ERROR_MESSAGE, msg);
161 svcLogic.setAttribute(Constants.CONTEXT_ERROR_CODE, status);
162 svcLogic.setAttribute(Constants.CONTEXT_ERROR_MESSAGE, msg);
167 * @param rc The request context that manages the state and recovery of the request for the life of its processing.
169 @SuppressWarnings("static-method")
170 private void doSuccess(RequestContext rc, int code, String message) {
171 SvcLogicContext svcLogic = rc.getSvcLogicContext();
172 svcLogic.setStatus(OUTCOME_SUCCESS);
173 svcLogic.setAttribute(Constants.ATTRIBUTE_ERROR_CODE, Integer.toString(HttpStatus.OK_200.getStatusCode()));
174 svcLogic.setAttribute(Constants.ATTRIBUTE_ERROR_MESSAGE, message);
175 svcLogic.setAttribute(Constants.CONTEXT_AGENT_ERROR_CODE, Integer.toString(code));
176 svcLogic.setAttribute(Constants.CONTEXT_AGENT_ERROR_MESSAGE, message);
177 svcLogic.setAttribute(Constants.CONTEXT_ERROR_CODE, Integer.toString(HttpStatus.OK_200.getStatusCode()));
180 private void executeHttpRequest(HttpRequestBase httpRequest, RequestContext rc) {
181 try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
182 HttpResponse response = httpClient.execute(httpRequest);
183 int responseCode = response.getStatusLine().getStatusCode();
184 HttpEntity entity = response.getEntity();
185 String responseOutput = EntityUtils.toString(entity);
186 if (responseCode == 200) {
187 doSuccess(rc, responseCode, responseOutput);
189 doFailure(rc, HttpStatus.getHttpStatus(responseCode), response.getStatusLine().getReasonPhrase());
191 } catch (Exception e) {
192 logger.error("An error occurred when executing http request", e);
193 doFailure(rc, HttpStatus.INTERNAL_SERVER_ERROR_500, e.toString());
197 public HttpRequestBase createHttpRequest(String method, Map<String, String> params, RequestContext rc) {
198 HttpRequestBase httpRequest = null;
200 String tUrl = params.get("org.onap.appc.instance.URI");
201 String haveHeader = params.get("org.onap.appc.instance.haveHeader");
202 String headers = params.get("org.onap.appc.instance.headers");
204 Supplier<RequestFactory> requestFactory = RequestFactory::new;
205 httpRequest = requestFactory.get().getHttpRequest(method, tUrl);
207 if ("true".equals(haveHeader)) {
208 JSONObject jsonHeaders = new JSONObject(headers);
209 Iterator keys = jsonHeaders.keys();
210 while (keys.hasNext()) {
211 String string1 = (String) keys.next();
212 String string2 = jsonHeaders.getString(string1);
213 httpRequest.addHeader(string1, string2);
216 if (params.containsKey("org.onap.appc.instance.requestBody")) {
217 String body = params.get("org.onap.appc.instance.requestBody");
218 StringEntity bodyParams = new StringEntity(body, "UTF-8");
219 if ("PUT".equals(method)) {
220 HttpPut httpPut = (HttpPut) httpRequest;
221 httpPut.setEntity(bodyParams);
223 if ("POST".equals(method)) {
224 HttpPost httpPost = (HttpPost) httpRequest;
225 httpPost.setEntity(bodyParams);
228 } catch (Exception e) {
229 logger.error("An error occurred when creating http request", e);
230 doFailure(rc, HttpStatus.INTERNAL_SERVER_ERROR_500, e.toString());
237 * initialize the provider adapter by building the context cache
239 private void initialize() {
240 configuration = ConfigurationFactory.getConfiguration();
242 logger.info("Rest adapter has been initialized");