1 package com.indexdata.mkjsf.pazpar2;
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3 import java.io.Serializable;
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4 import java.util.ArrayList;
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5 import java.util.Arrays;
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6 import java.util.HashMap;
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7 import java.util.List;
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8 import java.util.Map;
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9 import java.util.StringTokenizer;
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11 import javax.annotation.PostConstruct;
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12 import javax.enterprise.context.SessionScoped;
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13 import javax.inject.Inject;
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14 import javax.inject.Named;
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16 import org.apache.log4j.Logger;
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18 import com.indexdata.mkjsf.config.Configurable;
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19 import com.indexdata.mkjsf.config.Configuration;
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20 import com.indexdata.mkjsf.config.ConfigurationReader;
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21 import com.indexdata.mkjsf.controls.ResultsPager;
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22 import com.indexdata.mkjsf.errors.ConfigurationError;
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23 import com.indexdata.mkjsf.errors.ConfigurationException;
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24 import com.indexdata.mkjsf.errors.ErrorCentral;
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25 import com.indexdata.mkjsf.errors.ErrorHelper;
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26 import com.indexdata.mkjsf.pazpar2.commands.CommandParameter;
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27 import com.indexdata.mkjsf.pazpar2.commands.Pazpar2Command;
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28 import com.indexdata.mkjsf.pazpar2.commands.Pazpar2Commands;
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29 import com.indexdata.mkjsf.pazpar2.data.RecordResponse;
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30 import com.indexdata.mkjsf.pazpar2.data.ResponseDataObject;
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31 import com.indexdata.mkjsf.pazpar2.data.ResponseParser;
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32 import com.indexdata.mkjsf.pazpar2.data.Responses;
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33 import com.indexdata.mkjsf.pazpar2.sp.auth.ServiceProxyUser;
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34 import com.indexdata.mkjsf.pazpar2.state.StateListener;
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35 import com.indexdata.mkjsf.pazpar2.state.StateManager;
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36 import com.indexdata.mkjsf.utils.Utils;
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38 @Named("pz2") @SessionScoped
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39 public class Pz2Bean implements Pz2Interface, StateListener, Configurable, Serializable {
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41 private static final String MODULE_NAME = "service";
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42 private static String SERVICE_TYPE_TBD = "TBD", SERVICE_TYPE_PZ2 = "PZ2", SERVICE_TYPE_SP = "SP";
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43 private static final List<String> serviceTypes =
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44 Arrays.asList(SERVICE_TYPE_PZ2,SERVICE_TYPE_SP,SERVICE_TYPE_TBD);
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45 private String serviceType = SERVICE_TYPE_TBD;
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46 private List<String> serviceProxyUrls = new ArrayList<String>();
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47 public static final String SERVICE_PROXY_URL_LIST = "SERVICE_PROXY_URL_LIST";
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48 private List<String> pazpar2Urls = new ArrayList<String>();
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49 public static final String PAZPAR2_URL_LIST = "PAZPAR2_URL_LIST";
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52 private static final long serialVersionUID = 3440277287081557861L;
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53 private static Logger logger = Logger.getLogger(Pz2Bean.class);
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54 private static Logger responseLogger = Logger.getLogger("com.indexdata.mkjsf.pazpar2.responses");
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55 protected Pz2Client pz2Client = null;
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56 protected ServiceProxyClient spClient = null;
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57 protected SearchClient searchClient = null;
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59 @Inject ConfigurationReader configurator;
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60 @Inject StateManager stateMgr;
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61 @Inject Pazpar2Commands pzreq;
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62 @Inject Responses pzresp;
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63 @Inject ErrorCentral errors;
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64 @Inject ServiceProxyUser user;
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66 protected ResultsPager pager = null;
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68 protected ErrorHelper errorHelper = null;
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71 logger.info("Instantiating pz2 bean [" + Utils.objectId(this) + "]");
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75 public void postConstruct() {
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76 logger.debug("Pz2Bean post-construct: Configurator is " + configurator);
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77 logger.debug(Utils.objectId(this) + " will instantiate a Pz2Client next.");
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78 pz2Client = new Pz2Client();
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79 configureClient(pz2Client,configurator);
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80 spClient = new ServiceProxyClient();
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81 configureClient(spClient,configurator);
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83 this.configure(configurator);
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84 } catch (ConfigurationException e) {
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85 logger.error("There was a problem configuring the Pz2Bean (\"pz2\")");
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86 e.printStackTrace();
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88 stateMgr.addStateListener(this);
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91 public void configureClient(SearchClient client, ConfigurationReader configReader) {
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92 logger.debug(Utils.objectId(this) + " will configure search client for the session");
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94 client.configure(configReader);
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95 } catch (ConfigurationException e) {
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96 logger.debug("Pz2Bean adding configuration error");
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97 errors.addConfigurationError(new ConfigurationError("Search Client","Configuration",e.getMessage()));
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99 logger.info(configReader.document());
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100 pzresp.resetAllSessionData();
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103 public void resetSearchAndRecordCommands () {
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104 pzreq.getRecord().removeParametersInState();
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105 pzreq.getSearch().removeParametersInState();
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108 public void doSearch(String query) {
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109 pzreq.getSearch().setParameter(new CommandParameter("query","=",query));
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113 public void doSearch() {
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114 if (errors.hasConfigurationErrors()) {
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115 logger.error("Ignoring search request due to configuration errors.");
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117 stateMgr.hasPendingStateChange("search",false);
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118 pzresp.resetSearchResponses();
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119 // resets some record and show command parameters without
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120 // changing state or creating state change feedback
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121 pzreq.getRecord().removeParametersInState();
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122 pzreq.getShow().setParameterInState(new CommandParameter("start","=",0));
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123 logger.debug(Utils.objectId(this) + " is searching using "+pzreq.getCommand("search").getUrlEncodedParameterValue("query"));
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124 searchClient.setSearchCommand(pzreq.getCommand("search"));
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125 doCommand("search");
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129 public String doRecord() {
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130 if (errors.hasConfigurationErrors()) {
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131 logger.error("Ignoring record request due to configuration errors.");
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133 } else if (!pzreq.getCommand("record").hasParameterValue("id")) {
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134 logger.debug("Ignoring record request due to no id parameter.");
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136 } else if (pzresp.getSearch().hasApplicationError()) {
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137 logger.debug("Ignoring record request due search error.");
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140 ResponseDataObject responseObject = doCommand("record");
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141 if (pzreq.getRecord().hasParameterValue("offset") ||
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142 pzreq.getRecord().hasParameterValue("checksum")) {
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143 RecordResponse recordResponse = new RecordResponse();
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144 recordResponse.setType("record");
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145 recordResponse.setXml(responseObject.getXml());
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146 recordResponse.setAttribute("activeclients", "0");
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147 pzresp.put("record", recordResponse);
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149 return pzresp.getRecord().getActiveClients();
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154 * Refreshes 'show', 'stat', 'termlist', and 'bytarget' data object from pazpar2
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156 * @return Number of activeclients at the time of the 'show' command.
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158 public String update () {
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159 logger.debug("Updating show,stat,termlist,bytarget from pazpar2");
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160 if (errors.hasConfigurationErrors()) {
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161 logger.error("Ignoring show,stat,termlist,bytarget commands due to configuration errors.");
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163 } else if (pzresp.getSearch().hasApplicationError()) {
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164 logger.error("Ignoring show,stat,termlist,bytarget commands due to problem with most recent search.");
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166 } else if (!hasQuery()) {
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167 logger.error("Ignoring show,stat,termlist,bytarget commands because there is not yet a query.");
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170 return update("show,stat,termlist,bytarget");
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175 * Refreshes the data objects listed in 'commands' from pazpar2
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178 * @return Number of activeclients at the time of the 'show' command
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180 public String update (String commands) {
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181 logger.info("Request to update: " + commands);
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183 if (commands.equals("search")) {
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186 } else if (commands.equals("record")) {
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188 } else if (pzresp.getSearch().isNew()) {
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189 logger.info("New search. Marking it old, then returning 'new' to trigger another round-trip.");
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190 pzresp.getSearch().setIsNew(false);
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193 handleQueryStateChanges(commands);
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194 if (pzresp.getSearch().hasApplicationError()) {
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195 logger.error("The command(s) " + commands + " are cancelled because the latest search command had an error.");
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198 logger.debug("Processing request for " + commands);
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200 List<CommandThread> threadList = new ArrayList<CommandThread>();
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201 StringTokenizer tokens = new StringTokenizer(commands,",");
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202 while (tokens.hasMoreElements()) {
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203 threadList.add(new CommandThread(pzreq.getCommand(tokens.nextToken()),searchClient));
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205 for (CommandThread thread : threadList) {
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208 for (CommandThread thread : threadList) {
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211 } catch (InterruptedException e) {
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212 e.printStackTrace();
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215 for (CommandThread thread : threadList) {
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216 String commandName = thread.getCommand().getCommandName();
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217 ClientCommandResponse response = (ClientCommandResponse) thread.getCommandResponse();
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218 responseLogger.debug("Response was: " + response.getResponseString());
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219 ResponseDataObject responseObject = ResponseParser.getParser().getDataObject(response);
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220 if (ResponseParser.docTypes.contains(responseObject.getType())) {
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221 pzresp.put(commandName, responseObject);
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223 logger.info("Unknown doc type [" + responseObject.getType() + "]. Was not cached.");
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226 return pzresp.getActiveClients();
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229 } catch (ClassCastException cce) {
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230 cce.printStackTrace();
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232 } catch (NullPointerException npe) {
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233 npe.printStackTrace();
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235 } catch (Exception e) {
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236 e.printStackTrace();
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242 public String toggleRecord (String recId) {
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243 if (hasRecord(recId)) {
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244 pzreq.getRecord().removeParameters();
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245 pzresp.put("record", new RecordResponse());
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248 pzreq.getRecord().setId(recId);
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249 doCommand("record");
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250 return pzresp.getRecord().getActiveClients();
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255 public boolean hasRecord (String recId) {
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256 return pzreq.getCommand("record").hasParameters() && pzresp.getRecord().getRecId().equals(recId);
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259 public String getCurrentStateKey () {
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260 return stateMgr.getCurrentState().getKey();
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263 public void setCurrentStateKey(String key) {
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264 stateMgr.setCurrentStateKey(key);
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267 protected boolean hasQuery() {
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268 return pzreq.getCommand("search").hasParameterValue("query");
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273 public ResultsPager getPager () {
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274 if (pager == null) {
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275 pager = new ResultsPager(pzresp);
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281 public ResultsPager setPager (int pageRange) {
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282 pager = new ResultsPager(pzresp,pageRange,pzreq);
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286 protected void handleQueryStateChanges (String commands) {
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287 if (stateMgr.hasPendingStateChange("search") && hasQuery()) {
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288 logger.info("Triggered search: Found pending search change [" + pzreq.getCommand("search").toString() + "], doing search before updating " + commands);
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291 if (stateMgr.hasPendingStateChange("record") && ! commands.equals("record")) {
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292 logger.debug("Found pending record ID change. Doing record before updating " + commands);
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293 stateMgr.hasPendingStateChange("record",false);
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294 if (pzreq.getCommand("record").hasParameterValue("id")) {
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297 pzresp.put("record", new RecordResponse());
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303 * Validates the request then executes the command and parses the response.
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304 * If the parsed response is of a known type it will be cached in 'pzresp'
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306 * @param commandName The command to be executed
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307 * @return An XML response parsed to form a response data object
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309 protected ResponseDataObject doCommand(String commandName) {
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310 ResponseDataObject responseObject = null;
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311 logger.info("Request "+commandName + ": "+ pzreq.getCommand("search").toString());
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312 Pazpar2Command command = pzreq.getCommand(commandName);
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313 long start = System.currentTimeMillis();
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314 HttpResponseWrapper commandResponse = searchClient.executeCommand(command);
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315 long end = System.currentTimeMillis();
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316 logger.debug("Executed " + command.getCommandName() + " in " + (end-start) + " ms." );
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317 responseLogger.debug("Response was: " + commandResponse.getResponseString());
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318 responseObject = ResponseParser.getParser().getDataObject((ClientCommandResponse)commandResponse);
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319 if (ResponseParser.docTypes.contains(responseObject.getType())) {
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320 pzresp.put(commandName, responseObject);
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322 return responseObject;
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326 public void stateUpdated(String commandName) {
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327 logger.debug("State change reported for [" + commandName + "]");
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328 if (commandName.equals("show")) {
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329 logger.debug("Updating show");
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330 update(commandName);
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334 public void setServiceProxyUrl(String url) {
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335 searchClient = spClient;
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336 setServiceType(SERVICE_TYPE_SP);
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337 setServiceUrl(url);
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340 public String getServiceProxyUrl () {
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341 if (isServiceProxyService()) {
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342 return spClient.getServiceUrl();
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348 public void setPazpar2Url(String url) {
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349 searchClient = pz2Client;
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350 setServiceType(SERVICE_TYPE_PZ2);
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351 setServiceUrl(url);
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354 public String getPazpar2Url() {
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355 if (isPazpar2Service()) {
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356 return pz2Client.getServiceUrl();
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364 public void setServiceUrl(String url) {
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365 if (url!=null && searchClient != null && !url.equals(searchClient.getServiceUrl())) {
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366 pzreq.getRecord().removeParametersInState();
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367 pzreq.getSearch().removeParametersInState();
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368 pzresp.resetAllSessionData();
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370 searchClient.setServiceUrl(url);
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374 public String getServiceUrl() {
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375 return (searchClient!=null ? searchClient.getServiceUrl() : "");
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378 public boolean getServiceUrlIsDefined() {
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379 return (searchClient != null && searchClient.hasServiceUrl());
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382 public List<String> getServiceProxyUrls() {
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383 List<String> urls = new ArrayList<String>();
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385 urls.addAll(serviceProxyUrls);
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389 public List<String> getPazpar2Urls () {
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390 List<String> urls = new ArrayList<String>();
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392 urls.addAll(pazpar2Urls);
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396 public String getServiceType () {
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397 return serviceType;
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400 public boolean isPazpar2Service () {
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401 return serviceType.equals(SERVICE_TYPE_PZ2);
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404 public boolean isServiceProxyService() {
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405 return serviceType.equals(SERVICE_TYPE_SP);
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408 public boolean serviceIsToBeDecided () {
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409 return serviceType.equals(SERVICE_TYPE_TBD);
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412 public ServiceProxyClient getSpClient () {
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417 public boolean getAuthenticationRequired () {
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418 return spClient.isAuthenticatingClient();
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422 public String getCheckHistory () {
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423 return ":pz2watch:stateForm:windowlocationhash";
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427 public String getWatchActiveclients () {
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428 return ":pz2watch:activeclientsForm:activeclientsField";
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432 public String getWatchActiveclientsRecord () {
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433 return ":pz2watch:activeclientsForm:activeclientsFieldRecord";
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437 public void configure(ConfigurationReader reader)
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438 throws ConfigurationException {
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439 Configuration config = reader.getConfiguration(this);
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440 if (config == null) {
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441 serviceType = SERVICE_TYPE_TBD;
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443 String service = config.get("TYPE");
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444 if (service == null || service.length()==0) {
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445 serviceType = SERVICE_TYPE_TBD;
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446 } else if (serviceTypes.contains(service.toUpperCase())) {
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447 setServiceType(service.toUpperCase());
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449 logger.error("Unknown serviceType type in configuration [" + service + "], can be one of " + serviceTypes);
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450 serviceType = SERVICE_TYPE_TBD;
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452 serviceProxyUrls = config.getMultiProperty(SERVICE_PROXY_URL_LIST,",");
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453 pazpar2Urls = config.getMultiProperty(PAZPAR2_URL_LIST, ",");
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455 logger.info("Service Type is configured to " + serviceType);
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460 public Map<String, String> getDefaults() {
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461 return new HashMap<String,String>();
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465 public String getModuleName() {
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466 return MODULE_NAME;
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470 public List<String> documentConfiguration() {
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471 return new ArrayList<String>();
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475 public void setServiceTypePZ2() {
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476 setServiceType(SERVICE_TYPE_PZ2);
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480 public void setServiceTypeSP() {
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481 setServiceType(SERVICE_TYPE_SP);
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485 public void setServiceTypeTBD() {
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486 setServiceType(SERVICE_TYPE_TBD);
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489 private void setServiceType(String type) {
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490 if (!serviceType.equals(type) &&
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491 !serviceType.equals(SERVICE_TYPE_TBD)) {
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492 resetSearchAndRecordCommands();
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493 pzresp.resetAllSessionData();
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495 serviceType = type;
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496 if (serviceType.equals(SERVICE_TYPE_PZ2)) {
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497 searchClient = pz2Client;
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498 logger.info("Setting a Pazpar2 client to serve requests.");
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499 } else if (serviceType.equals(SERVICE_TYPE_SP)) {
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500 searchClient = spClient;
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501 logger.info("Setting a Service Proxy client to serve requests.");
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503 logger.info("Clearing search client. No client defined to serve requests at this point.");
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504 searchClient = null;
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