1 /*******************************************************************************
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2 * ============LICENSE_START==================================================
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4 * * ===========================================================================
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5 * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
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6 * * ===========================================================================
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7 * * Licensed under the Apache License, Version 2.0 (the "License");
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8 * * you may not use this file except in compliance with the License.
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9 * * You may obtain a copy of the License at
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11 * * http://www.apache.org/licenses/LICENSE-2.0
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13 * * Unless required by applicable law or agreed to in writing, software
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14 * * distributed under the License is distributed on an "AS IS" BASIS,
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15 * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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16 * * See the License for the specific language governing permissions and
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17 * * limitations under the License.
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18 * * ============LICENSE_END====================================================
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20 * * ECOMP is a trademark and service mark of AT&T Intellectual Property.
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22 ******************************************************************************/
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25 package org.onap.dmaap.datarouter.provisioning;
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27 import java.io.IOException;
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28 import java.io.InvalidObjectException;
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29 import java.net.HttpURLConnection;
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30 import java.net.URL;
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31 import java.util.List;
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32 import java.util.Vector;
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34 import javax.servlet.http.HttpServletRequest;
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35 import javax.servlet.http.HttpServletResponse;
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37 import org.json.JSONException;
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38 import org.json.JSONObject;
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39 import org.onap.dmaap.datarouter.authz.AuthorizationResponse;
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40 import org.onap.dmaap.datarouter.provisioning.beans.EventLogRecord;
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41 import org.onap.dmaap.datarouter.provisioning.beans.Subscription;
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42 import org.onap.dmaap.datarouter.provisioning.eelf.EelfMsgs;
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44 import com.att.eelf.configuration.EELFLogger;
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45 import com.att.eelf.configuration.EELFManager;
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47 import static org.onap.dmaap.datarouter.provisioning.utils.HttpServletUtils.sendResponseError;
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50 * This servlet handles provisioning for the <subscriptionURL> which is generated by the provisioning server to
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51 * handle the inspection, modification, and deletion of a particular subscription to a feed. It supports DELETE to
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52 * delete a subscription, GET to retrieve information about the subscription, and PUT to modify the subscription. In DR
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53 * 3.0, POST is also supported in order to reset the subscription timers for individual subscriptions.
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55 * @author Robert Eby
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58 @SuppressWarnings("serial")
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59 public class SubscriptionServlet extends ProxyServlet {
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61 public static final String SUBCNTRL_CONTENT_TYPE = "application/vnd.att-dr.subscription-control";
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62 //Adding EELF Logger Rally:US664892
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63 private static EELFLogger eelflogger = EELFManager.getInstance()
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64 .getLogger("org.onap.dmaap.datarouter.provisioning.SubscriptionServlet");
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67 * DELETE on the <subscriptionUrl> -- delete a subscription. See the <i>Deleting a Subscription</i> section in
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68 * the <b>Provisioning API</b> document for details on how this method should be invoked.
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71 public void doDelete(HttpServletRequest req, HttpServletResponse resp) {
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72 setIpAndFqdnForEelf("doDelete");
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73 eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
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74 EventLogRecord elr = new EventLogRecord(req);
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75 String message = isAuthorizedForProvisioning(req);
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76 if (message != null) {
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77 elr.setMessage(message);
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78 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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79 eventlogger.info(elr);
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80 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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83 if (isProxyServer()) {
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85 super.doDelete(req, resp);
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86 } catch (IOException ioe) {
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87 eventlogger.error("IOException: " + ioe.getMessage());
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91 String bhdr = req.getHeader(BEHALF_HEADER);
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93 message = "Missing " + BEHALF_HEADER + " header.";
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94 elr.setMessage(message);
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95 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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96 eventlogger.info(elr);
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97 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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100 int subid = getIdFromPath(req);
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102 message = "Missing or bad subscription number.";
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103 elr.setMessage(message);
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104 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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105 eventlogger.info(elr);
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106 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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109 Subscription sub = Subscription.getSubscriptionById(subid);
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111 message = "Missing or bad subscription number.";
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112 elr.setMessage(message);
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113 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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114 eventlogger.info(elr);
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115 sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);
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118 // Check with the Authorizer
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119 AuthorizationResponse aresp = authz.decide(req);
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120 if (!aresp.isAuthorized()) {
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121 message = "Policy Engine disallows access.";
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122 elr.setMessage(message);
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123 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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124 eventlogger.info(elr);
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125 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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129 // Delete Subscription
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130 if (doDelete(sub)) {
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133 elr.setResult(HttpServletResponse.SC_NO_CONTENT);
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134 eventlogger.info(elr);
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135 resp.setStatus(HttpServletResponse.SC_NO_CONTENT);
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136 provisioningDataChanged();
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138 // Something went wrong with the DELETE
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139 elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
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140 eventlogger.info(elr);
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141 sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, intlogger);
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146 * GET on the <subscriptionUrl> -- get information about a subscription. See the <i>Retreiving Information
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147 * about a Subscription</i> section in the <b>Provisioning API</b> document for details on how this method should be
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151 public void doGet(HttpServletRequest req, HttpServletResponse resp) {
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152 setIpAndFqdnForEelf("doGet");
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153 eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
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154 EventLogRecord elr = new EventLogRecord(req);
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155 String message = isAuthorizedForProvisioning(req);
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156 if (message != null) {
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157 elr.setMessage(message);
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158 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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159 eventlogger.info(elr);
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160 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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163 if (isProxyServer()) {
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165 super.doGet(req, resp);
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166 } catch (IOException ioe) {
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167 eventlogger.error("IOException: " + ioe.getMessage());
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171 String bhdr = req.getHeader(BEHALF_HEADER);
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172 if (bhdr == null) {
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173 message = "Missing " + BEHALF_HEADER + " header.";
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174 elr.setMessage(message);
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175 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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176 eventlogger.info(elr);
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177 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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180 int subid = getIdFromPath(req);
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182 message = "Missing or bad subscription number.";
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183 elr.setMessage(message);
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184 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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185 eventlogger.info(elr);
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186 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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189 Subscription sub = Subscription.getSubscriptionById(subid);
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191 message = "Missing or bad subscription number.";
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192 elr.setMessage(message);
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193 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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194 eventlogger.info(elr);
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195 sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);
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198 // Check with the Authorizer
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199 AuthorizationResponse aresp = authz.decide(req);
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200 if (!aresp.isAuthorized()) {
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201 message = "Policy Engine disallows access.";
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202 elr.setMessage(message);
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203 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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204 eventlogger.info(elr);
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205 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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210 elr.setResult(HttpServletResponse.SC_OK);
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211 eventlogger.info(elr);
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212 resp.setStatus(HttpServletResponse.SC_OK);
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213 resp.setContentType(SUBFULL_CONTENT_TYPE);
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215 resp.getOutputStream().print(sub.asJSONObject(true).toString());
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216 } catch (IOException ioe) {
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217 eventlogger.error("IOException: " + ioe.getMessage());
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222 * PUT on the <subscriptionUrl> -- modify a subscription. See the <i>Modifying a Subscription</i> section in
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223 * the <b>Provisioning API</b> document for details on how this method should be invoked.
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226 public void doPut(HttpServletRequest req, HttpServletResponse resp) {
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227 setIpAndFqdnForEelf("doPut");
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228 eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
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229 EventLogRecord elr = new EventLogRecord(req);
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230 String message = isAuthorizedForProvisioning(req);
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231 if (message != null) {
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232 elr.setMessage(message);
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233 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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234 eventlogger.info(elr);
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235 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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238 if (isProxyServer()) {
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240 super.doPut(req, resp);
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241 } catch (IOException ioe) {
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242 eventlogger.error("IOException: " + ioe.getMessage());
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246 String bhdr = req.getHeader(BEHALF_HEADER);
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247 if (bhdr == null) {
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248 message = "Missing " + BEHALF_HEADER + " header.";
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249 elr.setMessage(message);
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250 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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251 eventlogger.info(elr);
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252 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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255 int subid = getIdFromPath(req);
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257 message = "Missing or bad subscription number.";
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258 elr.setMessage(message);
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259 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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260 eventlogger.info(elr);
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261 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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264 Subscription oldsub = Subscription.getSubscriptionById(subid);
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265 if (oldsub == null) {
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266 message = "Missing or bad subscription number.";
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267 elr.setMessage(message);
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268 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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269 eventlogger.info(elr);
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270 sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);
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273 // Check with the Authorizer
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274 AuthorizationResponse aresp = authz.decide(req);
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275 if (!aresp.isAuthorized()) {
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276 message = "Policy Engine disallows access.";
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277 elr.setMessage(message);
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278 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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279 eventlogger.info(elr);
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280 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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283 // check content type is SUB_CONTENT_TYPE, version 1.0
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284 ContentHeader ch = getContentHeader(req);
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285 String ver = ch.getAttribute("version");
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286 if (!ch.getType().equals(SUB_BASECONTENT_TYPE) || !(ver.equals("1.0") || ver.equals("2.0"))) {
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287 message = "Incorrect content-type";
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288 elr.setMessage(message);
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289 elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
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290 eventlogger.info(elr);
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291 sendResponseError(resp, HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message, eventlogger);
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294 JSONObject jo = getJSONfromInput(req);
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296 message = "Badly formed JSON";
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297 elr.setMessage(message);
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298 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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299 eventlogger.info(elr);
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300 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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303 if (intlogger.isDebugEnabled()) {
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304 intlogger.debug(jo.toString());
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306 Subscription sub = null;
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308 sub = new Subscription(jo);
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309 } catch (InvalidObjectException e) {
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310 message = e.getMessage();
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311 elr.setMessage(message);
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312 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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313 eventlogger.info(elr);
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314 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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317 sub.setSubid(oldsub.getSubid());
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318 sub.setFeedid(oldsub.getFeedid());
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319 sub.setSubscriber(bhdr); // set from X-ATT-DR-ON-BEHALF-OF header
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321 String subjectgroup = (req.getHeader("X-ATT-DR-ON-BEHALF-OF-GROUP")); //Adding for group feature:Rally US708115
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322 if (!oldsub.getSubscriber().equals(sub.getSubscriber()) && subjectgroup == null) {
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323 message = "This subscriber must be modified by the same subscriber that created it.";
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324 elr.setMessage(message);
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325 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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326 eventlogger.info(elr);
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327 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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331 // Update SUBSCRIPTIONS table entries
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332 if (doUpdate(sub)) {
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334 elr.setResult(HttpServletResponse.SC_OK);
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335 eventlogger.info(elr);
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336 resp.setStatus(HttpServletResponse.SC_OK);
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337 resp.setContentType(SUBFULL_CONTENT_TYPE);
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339 resp.getOutputStream().print(sub.asLimitedJSONObject().toString());
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340 } catch (IOException ioe) {
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341 eventlogger.error("IOException: " + ioe.getMessage());
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344 /**Change Owner ship of Subscriber Adding for group feature:Rally US708115*/
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345 if (jo.has("changeowner") && subjectgroup != null) {
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347 Boolean changeowner = (Boolean) jo.get("changeowner");
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348 if (changeowner != null && changeowner.equals(true)) {
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349 sub.setSubscriber(req.getHeader(BEHALF_HEADER));
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350 sub.changeOwnerShip();
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352 } catch (JSONException je) {
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353 eventlogger.error("JSONException: " + je.getMessage());
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356 /***End of change ownership*/
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358 provisioningDataChanged();
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360 // Something went wrong with the UPDATE
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361 elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
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362 eventlogger.info(elr);
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363 sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, intlogger);
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368 * POST on the <subscriptionUrl> -- control a subscription. See the <i>Resetting a Subscription's Retry
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369 * Schedule</i> section in the <b>Provisioning API</b> document for details on how this method should be invoked.
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372 public void doPost(HttpServletRequest req, HttpServletResponse resp) {
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373 // OLD pre-3.0 code
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374 // String message = "POST not allowed for the subscriptionURL.";
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375 // EventLogRecord elr = new EventLogRecord(req);
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376 // elr.setMessage(message);
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377 // elr.setResult(HttpServletResponse.SC_METHOD_NOT_ALLOWED);
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378 // eventlogger.info(elr);
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379 // resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED, message);
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381 setIpAndFqdnForEelf("doPost");
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382 eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF, req.getHeader(BEHALF_HEADER));
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383 EventLogRecord elr = new EventLogRecord(req);
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384 String message = isAuthorizedForProvisioning(req);
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385 if (message != null) {
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386 elr.setMessage(message);
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387 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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388 eventlogger.info(elr);
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389 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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392 if (isProxyServer()) {
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394 super.doPost(req, resp);
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395 } catch (IOException ioe) {
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396 eventlogger.error("IOException: " + ioe.getMessage());
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400 String bhdr = req.getHeader(BEHALF_HEADER);
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401 if (bhdr == null) {
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402 message = "Missing " + BEHALF_HEADER + " header.";
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403 elr.setMessage(message);
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404 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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405 eventlogger.info(elr);
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406 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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409 final int subid = getIdFromPath(req);
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410 if (subid < 0 || Subscription.getSubscriptionById(subid) == null) {
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411 message = "Missing or bad subscription number.";
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412 elr.setMessage(message);
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413 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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414 eventlogger.info(elr);
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415 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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418 // check content type is SUBCNTRL_CONTENT_TYPE, version 1.0
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419 ContentHeader ch = getContentHeader(req);
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420 String ver = ch.getAttribute("version");
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421 if (!ch.getType().equals(SUBCNTRL_CONTENT_TYPE) || !ver.equals("1.0")) {
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422 message = "Incorrect content-type";
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423 elr.setMessage(message);
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424 elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
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425 eventlogger.info(elr);
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426 sendResponseError(resp, HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message, eventlogger);
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429 // Check with the Authorizer
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430 AuthorizationResponse aresp = authz.decide(req);
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431 if (!aresp.isAuthorized()) {
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432 message = "Policy Engine disallows access.";
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433 elr.setMessage(message);
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434 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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435 eventlogger.info(elr);
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436 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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439 JSONObject jo = getJSONfromInput(req);
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441 message = "Badly formed JSON";
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442 elr.setMessage(message);
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443 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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444 eventlogger.info(elr);
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445 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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449 // Only the active POD sends notifications
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450 boolean active = SynchronizerTask.getSynchronizer().isActive();
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451 boolean b = jo.getBoolean("failed");
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452 if (active && !b) {
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453 // Notify all nodes to reset the subscription
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454 SubscriberNotifyThread t = new SubscriberNotifyThread();
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455 t.resetSubscription(subid);
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459 elr.setResult(HttpServletResponse.SC_ACCEPTED);
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460 eventlogger.info(elr);
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461 resp.setStatus(HttpServletResponse.SC_ACCEPTED);
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462 } catch (JSONException e) {
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463 message = "Badly formed JSON";
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464 elr.setMessage(message);
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465 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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466 eventlogger.info(elr);
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467 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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472 * A Thread class used to serially send reset notifications to all nodes in the DR network, when a POST is received
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473 * for a subscription.
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475 public class SubscriberNotifyThread extends Thread {
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477 public static final String URL_TEMPLATE = "http://%s/internal/resetSubscription/%d";
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478 private List<String> urls = new Vector<String>();
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480 public SubscriberNotifyThread() {
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481 setName("SubscriberNotifyThread");
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484 public void resetSubscription(int subid) {
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485 for (String nodename : BaseServlet.getNodes()) {
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486 String u = String.format(URL_TEMPLATE, nodename, subid);
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491 public void run() {
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493 while (!urls.isEmpty()) {
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494 String u = urls.remove(0);
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496 URL url = new URL(u);
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497 HttpURLConnection conn = (HttpURLConnection) url.openConnection();
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499 conn.getContentLength(); // Force the GET through
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501 } catch (IOException e) {
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502 intlogger.info("IOException Error accessing URL: " + u + ": " + e.getMessage());
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505 } catch (Exception e) {
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506 intlogger.warn("Caught exception in SubscriberNotifyThread: " + e);
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