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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48 * This servlet handles provisioning for the <subscriptionURL> which is generated by the provisioning server to
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49 * handle the inspection, modification, and deletion of a particular subscription to a feed. It supports DELETE to
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50 * delete a subscription, GET to retrieve information about the subscription, and PUT to modify the subscription. In DR
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51 * 3.0, POST is also supported in order to reset the subscription timers for individual subscriptions.
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53 * @author Robert Eby
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56 @SuppressWarnings("serial")
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57 public class SubscriptionServlet extends ProxyServlet {
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59 public static final String SUBCNTRL_CONTENT_TYPE = "application/vnd.att-dr.subscription-control";
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60 //Adding EELF Logger Rally:US664892
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61 private static EELFLogger eelflogger = EELFManager.getInstance()
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62 .getLogger("org.onap.dmaap.datarouter.provisioning.SubscriptionServlet");
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65 * DELETE on the <subscriptionUrl> -- delete a subscription. See the <i>Deleting a Subscription</i> section in
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66 * the <b>Provisioning API</b> document for details on how this method should be invoked.
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69 public void doDelete(HttpServletRequest req, HttpServletResponse resp) throws IOException {
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70 setIpAndFqdnForEelf("doDelete");
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71 eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
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72 EventLogRecord elr = new EventLogRecord(req);
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73 String message = isAuthorizedForProvisioning(req);
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74 if (message != null) {
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75 elr.setMessage(message);
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76 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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77 eventlogger.info(elr);
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78 resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
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81 if (isProxyServer()) {
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82 super.doDelete(req, resp);
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85 String bhdr = req.getHeader(BEHALF_HEADER);
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87 message = "Missing " + BEHALF_HEADER + " header.";
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88 elr.setMessage(message);
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89 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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90 eventlogger.info(elr);
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91 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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94 int subid = getIdFromPath(req);
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96 message = "Missing or bad subscription number.";
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97 elr.setMessage(message);
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98 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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99 eventlogger.info(elr);
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100 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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103 Subscription sub = Subscription.getSubscriptionById(subid);
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105 message = "Missing or bad subscription number.";
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106 elr.setMessage(message);
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107 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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108 eventlogger.info(elr);
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109 resp.sendError(HttpServletResponse.SC_NOT_FOUND, message);
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112 // Check with the Authorizer
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113 AuthorizationResponse aresp = authz.decide(req);
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114 if (!aresp.isAuthorized()) {
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115 message = "Policy Engine disallows access.";
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116 elr.setMessage(message);
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117 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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118 eventlogger.info(elr);
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119 resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
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123 // Delete Subscription
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124 if (doDelete(sub)) {
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127 elr.setResult(HttpServletResponse.SC_NO_CONTENT);
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128 eventlogger.info(elr);
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129 resp.setStatus(HttpServletResponse.SC_NO_CONTENT);
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130 provisioningDataChanged();
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132 // Something went wrong with the DELETE
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133 elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
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134 eventlogger.info(elr);
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135 resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG);
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140 * GET on the <subscriptionUrl> -- get information about a subscription. See the <i>Retreiving Information
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141 * about a Subscription</i> section in the <b>Provisioning API</b> document for details on how this method should be
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145 public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
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146 setIpAndFqdnForEelf("doGet");
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147 eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
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148 EventLogRecord elr = new EventLogRecord(req);
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149 String message = isAuthorizedForProvisioning(req);
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150 if (message != null) {
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151 elr.setMessage(message);
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152 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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153 eventlogger.info(elr);
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154 resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
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157 if (isProxyServer()) {
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158 super.doGet(req, resp);
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161 String bhdr = req.getHeader(BEHALF_HEADER);
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162 if (bhdr == null) {
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163 message = "Missing " + BEHALF_HEADER + " header.";
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164 elr.setMessage(message);
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165 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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166 eventlogger.info(elr);
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167 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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170 int subid = getIdFromPath(req);
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172 message = "Missing or bad subscription number.";
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173 elr.setMessage(message);
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174 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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175 eventlogger.info(elr);
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176 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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179 Subscription sub = Subscription.getSubscriptionById(subid);
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181 message = "Missing or bad subscription number.";
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182 elr.setMessage(message);
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183 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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184 eventlogger.info(elr);
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185 resp.sendError(HttpServletResponse.SC_NOT_FOUND, message);
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188 // Check with the Authorizer
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189 AuthorizationResponse aresp = authz.decide(req);
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190 if (!aresp.isAuthorized()) {
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191 message = "Policy Engine disallows access.";
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192 elr.setMessage(message);
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193 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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194 eventlogger.info(elr);
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195 resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
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200 elr.setResult(HttpServletResponse.SC_OK);
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201 eventlogger.info(elr);
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202 resp.setStatus(HttpServletResponse.SC_OK);
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203 resp.setContentType(SUBFULL_CONTENT_TYPE);
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204 resp.getOutputStream().print(sub.asJSONObject(true).toString());
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208 * PUT on the <subscriptionUrl> -- modify a subscription. See the <i>Modifying a Subscription</i> section in
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209 * the <b>Provisioning API</b> document for details on how this method should be invoked.
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212 public void doPut(HttpServletRequest req, HttpServletResponse resp) throws IOException {
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213 setIpAndFqdnForEelf("doPut");
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214 eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
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215 EventLogRecord elr = new EventLogRecord(req);
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216 String message = isAuthorizedForProvisioning(req);
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217 if (message != null) {
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218 elr.setMessage(message);
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219 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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220 eventlogger.info(elr);
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221 resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
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224 if (isProxyServer()) {
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225 super.doPut(req, resp);
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228 String bhdr = req.getHeader(BEHALF_HEADER);
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229 if (bhdr == null) {
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230 message = "Missing " + BEHALF_HEADER + " header.";
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231 elr.setMessage(message);
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232 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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233 eventlogger.info(elr);
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234 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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237 int subid = getIdFromPath(req);
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239 message = "Missing or bad subscription number.";
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240 elr.setMessage(message);
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241 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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242 eventlogger.info(elr);
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243 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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246 Subscription oldsub = Subscription.getSubscriptionById(subid);
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247 if (oldsub == null) {
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248 message = "Missing or bad subscription number.";
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249 elr.setMessage(message);
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250 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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251 eventlogger.info(elr);
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252 resp.sendError(HttpServletResponse.SC_NOT_FOUND, message);
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255 // Check with the Authorizer
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256 AuthorizationResponse aresp = authz.decide(req);
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257 if (!aresp.isAuthorized()) {
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258 message = "Policy Engine disallows access.";
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259 elr.setMessage(message);
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260 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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261 eventlogger.info(elr);
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262 resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
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265 // check content type is SUB_CONTENT_TYPE, version 1.0
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266 ContentHeader ch = getContentHeader(req);
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267 String ver = ch.getAttribute("version");
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268 if (!ch.getType().equals(SUB_BASECONTENT_TYPE) || !(ver.equals("1.0") || ver.equals("2.0"))) {
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269 message = "Incorrect content-type";
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270 elr.setMessage(message);
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271 elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
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272 eventlogger.info(elr);
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273 resp.sendError(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message);
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276 JSONObject jo = getJSONfromInput(req);
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278 message = "Badly formed JSON";
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279 elr.setMessage(message);
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280 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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281 eventlogger.info(elr);
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282 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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285 if (intlogger.isDebugEnabled()) {
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286 intlogger.debug(jo.toString());
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288 Subscription sub = null;
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290 sub = new Subscription(jo);
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291 } catch (InvalidObjectException e) {
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292 message = e.getMessage();
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293 elr.setMessage(message);
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294 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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295 eventlogger.info(elr);
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296 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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299 sub.setSubid(oldsub.getSubid());
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300 sub.setFeedid(oldsub.getFeedid());
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301 sub.setSubscriber(bhdr); // set from X-ATT-DR-ON-BEHALF-OF header
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303 String subjectgroup = (req.getHeader("X-ATT-DR-ON-BEHALF-OF-GROUP")); //Adding for group feature:Rally US708115
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304 if (!oldsub.getSubscriber().equals(sub.getSubscriber()) && subjectgroup == null) {
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305 message = "This subscriber must be modified by the same subscriber that created it.";
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306 elr.setMessage(message);
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307 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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308 eventlogger.info(elr);
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309 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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313 // Update SUBSCRIPTIONS table entries
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314 if (doUpdate(sub)) {
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316 elr.setResult(HttpServletResponse.SC_OK);
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317 eventlogger.info(elr);
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318 resp.setStatus(HttpServletResponse.SC_OK);
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319 resp.setContentType(SUBFULL_CONTENT_TYPE);
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320 resp.getOutputStream().print(sub.asLimitedJSONObject().toString());
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322 /**Change Owner ship of Subscriber Adding for group feature:Rally US708115*/
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323 if (jo.has("changeowner") && subjectgroup != null) {
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324 Boolean changeowner = (Boolean) jo.get("changeowner");
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325 if (changeowner != null && changeowner.equals(true)) {
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326 sub.setSubscriber(req.getHeader(BEHALF_HEADER));
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327 sub.changeOwnerShip();
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330 /***End of change ownership*/
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332 provisioningDataChanged();
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334 // Something went wrong with the UPDATE
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335 elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
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336 eventlogger.info(elr);
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337 resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG);
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342 * POST on the <subscriptionUrl> -- control a subscription. See the <i>Resetting a Subscription's Retry
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343 * Schedule</i> section in the <b>Provisioning API</b> document for details on how this method should be invoked.
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346 public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
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347 // OLD pre-3.0 code
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348 // String message = "POST not allowed for the subscriptionURL.";
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349 // EventLogRecord elr = new EventLogRecord(req);
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350 // elr.setMessage(message);
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351 // elr.setResult(HttpServletResponse.SC_METHOD_NOT_ALLOWED);
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352 // eventlogger.info(elr);
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353 // resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED, message);
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355 setIpAndFqdnForEelf("doPost");
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356 eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF, req.getHeader(BEHALF_HEADER));
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357 EventLogRecord elr = new EventLogRecord(req);
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358 String message = isAuthorizedForProvisioning(req);
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359 if (message != null) {
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360 elr.setMessage(message);
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361 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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362 eventlogger.info(elr);
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363 resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
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366 if (isProxyServer()) {
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367 super.doPost(req, resp);
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370 String bhdr = req.getHeader(BEHALF_HEADER);
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371 if (bhdr == null) {
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372 message = "Missing " + BEHALF_HEADER + " header.";
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373 elr.setMessage(message);
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374 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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375 eventlogger.info(elr);
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376 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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379 final int subid = getIdFromPath(req);
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380 if (subid < 0 || Subscription.getSubscriptionById(subid) == null) {
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381 message = "Missing or bad subscription number.";
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382 elr.setMessage(message);
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383 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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384 eventlogger.info(elr);
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385 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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388 // check content type is SUBCNTRL_CONTENT_TYPE, version 1.0
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389 ContentHeader ch = getContentHeader(req);
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390 String ver = ch.getAttribute("version");
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391 if (!ch.getType().equals(SUBCNTRL_CONTENT_TYPE) || !ver.equals("1.0")) {
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392 message = "Incorrect content-type";
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393 elr.setMessage(message);
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394 elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
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395 eventlogger.info(elr);
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396 resp.sendError(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message);
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399 // Check with the Authorizer
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400 AuthorizationResponse aresp = authz.decide(req);
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401 if (!aresp.isAuthorized()) {
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402 message = "Policy Engine disallows access.";
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403 elr.setMessage(message);
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404 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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405 eventlogger.info(elr);
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406 resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
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409 JSONObject jo = getJSONfromInput(req);
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411 message = "Badly formed JSON";
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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 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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419 // Only the active POD sends notifications
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420 boolean active = SynchronizerTask.getSynchronizer().isActive();
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421 boolean b = jo.getBoolean("failed");
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422 if (active && !b) {
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423 // Notify all nodes to reset the subscription
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424 SubscriberNotifyThread t = new SubscriberNotifyThread();
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425 t.resetSubscription(subid);
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429 elr.setResult(HttpServletResponse.SC_ACCEPTED);
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430 eventlogger.info(elr);
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431 resp.setStatus(HttpServletResponse.SC_ACCEPTED);
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432 } catch (JSONException e) {
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433 message = "Badly formed JSON";
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434 elr.setMessage(message);
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435 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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436 eventlogger.info(elr);
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437 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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442 * 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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443 * for a subscription.
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445 public class SubscriberNotifyThread extends Thread {
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447 public static final String URL_TEMPLATE = "http://%s/internal/resetSubscription/%d";
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448 private List<String> urls = new Vector<String>();
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450 public SubscriberNotifyThread() {
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451 setName("SubscriberNotifyThread");
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454 public void resetSubscription(int subid) {
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455 for (String nodename : BaseServlet.getNodes()) {
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456 String u = String.format(URL_TEMPLATE, nodename, subid);
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461 public void run() {
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463 while (!urls.isEmpty()) {
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464 String u = urls.remove(0);
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466 URL url = new URL(u);
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467 HttpURLConnection conn = (HttpURLConnection) url.openConnection();
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469 conn.getContentLength(); // Force the GET through
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471 } catch (IOException e) {
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472 intlogger.info("IOException Error accessing URL: " + u + ": " + e.getMessage());
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475 } catch (Exception e) {
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476 intlogger.warn("Caught exception in SubscriberNotifyThread: " + e);
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477 e.printStackTrace();
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