1 package com.indexdata.mkjsf.pazpar2.commands;
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3 import java.util.Arrays;
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4 import java.util.List;
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6 import javax.enterprise.context.SessionScoped;
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7 import javax.inject.Named;
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9 import org.apache.log4j.Logger;
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11 import com.indexdata.mkjsf.pazpar2.Pz2Service;
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12 import com.indexdata.mkjsf.pazpar2.commands.sp.ServiceProxyCommand;
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13 import com.indexdata.mkjsf.pazpar2.data.ResponseDataObject;
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15 @SessionScoped @Named
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16 public class SearchCommand extends Pazpar2Command implements ServiceProxyCommand {
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18 private static final long serialVersionUID = -1888520867838597236L;
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19 private static Logger logger = Logger.getLogger(SearchCommand.class);
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21 public SearchCommand() {
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25 public ResponseDataObject run() {
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26 logger.info("Running " + getCommandName());
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27 Pz2Service.get().getStateMgr().hasPendingStateChange("search",false);
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28 Pz2Service.get().getPzresp().resetSearchAndBeyond();
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29 Pz2Service.get().getPzreq().getRecord().removeParametersInState();
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30 Pz2Service.get().getPzreq().getShow().setParameterInState(new CommandParameter("start","=",0));
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31 Pz2Service.get().getSearchClient().setSearchCommand(this);
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35 public void setQuery(String query) {
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36 setParameter(new CommandParameter("query","=",query));
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39 public String getQuery () {
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40 return getParameter("query") == null ? null : getParameter("query").getValueWithExpressions();
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43 public void setFilter(String filterExpression) {
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44 if (filterExpression != null && filterExpression.length()>0) {
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45 if (filterExpression.split("[=~]").length==1) {
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46 removeFilters(filterExpression.split("[=~]")[0]);
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47 } else if (filterExpression.split("[=~]").length==2) {
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48 setParameter(new FilterParameter(new Expression(filterExpression)));
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50 logger.error("Could not parse filter expression [" + filterExpression + "]");
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55 public void setFilter(String field, String operator, String value, String label) {
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56 setParameter(new FilterParameter(new Expression(field,operator,value,label)));
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59 public boolean hasFilterExpression(String... expressionFields) {
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60 logger.trace("Checking for filter expression for " + Arrays.deepToString(expressionFields));
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61 for (String field : expressionFields) {
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62 if (getFilterExpressions(field) != null && getFilterExpressions(field).size()>0) {
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63 logger.trace("Filter expression found (" + field + ")");
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67 logger.trace("No filter expressions found");
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72 public String getFilter() {
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73 return getParameter("filter") == null ? null : ((FilterParameter)getParameter("filter")).getValueWithExpressions();
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76 public Expression getOneFilterExpression(String expressionField) {
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77 List<Expression> exprs = getFilterExpressions(expressionField);
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78 if (exprs != null && exprs.size()>0) {
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79 if (exprs.size()>1) {
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80 logger.warn("More that one filter expression found for [" + expressionField + "] but only asked to return the first one");
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82 return exprs.get(0);
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89 public List<Expression> getFilterExpressions() {
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90 return getParameter("filter").getExpressions();
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93 public List<Expression> getFilterExpressions(String... expressionFields) {
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94 logger.trace("Checking for filter parameter");
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95 if (parameters.get("filter")!=null) {
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96 logger.trace("Found");
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97 return getParameter("filter").getExpressions(expressionFields);
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99 logger.trace("Not found");
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104 public boolean hasFilter () {
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105 return getFilter().length()>0;
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108 public void addFilter(String field, String operator, String value, String label) {
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109 if (getParameter("filter") == null) {
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110 setFilter(field + operator + value);
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112 getParameter("filter").addExpression(new Expression(field,operator,value,(label != null ? label : value)));
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116 public void removeFilters () {
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117 removeParameter("filter");
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120 public void removeFilter(String field, String operator, String value) {
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121 removeExpression("filter",new Expression(field, operator, value, null));
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124 public void removeFilters(String... fieldsToRemove) {
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125 removeExpressions("filter",fieldsToRemove);
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128 public void removeFiltersAfter(String field, String operator, String value, String... fieldsToRemove) {
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129 removeExpressionsAfter("filter",new Expression(field,operator,value,null),fieldsToRemove);
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132 public void setLimit (String limitExpression) {
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133 if (limitExpression != null && limitExpression.length()>0) {
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134 setParameter(new LimitParameter(new Expression(limitExpression)));
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138 public void setLimit(String field, String operator, String value, String label) {
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139 setParameter(new LimitParameter(new Expression(field,operator,value,label)));
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142 public String getLimit () {
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143 return getParameter("limit") == null ? null : ((FilterParameter)getParameter("limit")).getValueWithExpressions();
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146 public boolean hasLimitExpression(String... expressionFields) {
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147 logger.trace("Checking for limit expression for " + Arrays.deepToString(expressionFields));
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148 for (String field : expressionFields) {
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149 if (getLimitExpressions(field) != null && getLimitExpressions(field).size()>0) {
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150 logger.trace("Limit expression found (" + field + ")");
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154 logger.trace("No limit expressions found");
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158 public Expression getOneLimitExpression(String expressionField) {
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159 List<Expression> exprs = getLimitExpressions(expressionField);
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160 if (exprs != null && exprs.size()>0) {
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161 if (exprs.size()>1) {
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162 logger.warn("More that one limit expression found for [" + expressionField + "] but only asked to return the first one");
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164 return exprs.get(0);
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170 public List<Expression> getLimitExpressions() {
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171 return getParameter("limit").getExpressions();
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174 public List<Expression> getLimitExpressions(String... expressionFields) {
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175 logger.trace("Checking for limit parameter");
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176 if (parameters.get("limit")!=null) {
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177 logger.trace("Found");
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178 return getParameter("limit").getExpressions(expressionFields);
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180 logger.trace("Not found");
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185 public void addLimit(String field, String operator, String value, String label) {
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186 if (getParameter("limit") == null) {
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187 setLimit(field, operator, value, label);
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189 addExpression("limit",new Expression(field,operator,value,label));
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193 public void removeLimits() {
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194 removeParameter("limit");
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197 public void removeLimits(String... fieldsToRemove) {
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198 removeExpressions("limit",fieldsToRemove);
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201 public void removeLimit(String field, String operator, String value) {
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202 removeExpression("limit",new Expression(field, operator, value, null));
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205 public void removeLimitsAfter(String field, String operator, String value, String... fieldsToRemove) {
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206 removeExpressionsAfter("limit",new Expression(field,operator,value,null),fieldsToRemove);
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210 public void setStartrecs (String startrecs) {
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211 setParameter(new CommandParameter("startrecs","=",startrecs));
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214 public String getStartrecs () {
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215 return getParameterValue("startrecs");
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218 public void setMaxrecs (String maxrecs) {
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219 setParameter(new CommandParameter("maxrecs","=",maxrecs));
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222 public String getMaxrecs () {
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223 return getParameterValue("maxrecs");
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226 public void setSort (String sort) {
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227 setParameter(new CommandParameter("sort","=",sort));
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230 public String getSort () {
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231 return getParameterValue("sort");
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234 public void setRank (String rank) {
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235 setParameter(new CommandParameter("rank","=",rank));
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238 public String getRank () {
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239 return getParameterValue("rank");
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242 public void setMergekey (String mergekey) {
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243 setParameter(new CommandParameter("mergekey","=",mergekey));
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246 public String getMergekey () {
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247 return getParameterValue("mergekey");
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252 * Sets a facet, in CQL, to restrict the current results
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254 * @param facetKey i.e. 'au' for author
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255 * @param term i.e. 'Dickens, Charles'
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257 public void setFacet(String facetKey, String term) {
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258 if (term != null && term.length()>0) {
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259 getParameter("query").addExpression(new Expression(facetKey,"=",term,null));
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264 * Sets a facet to limit the current query by. The
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265 * facet is appended to the query string itself (rather
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266 * as a separately managed entity. It will thus appear
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267 * in a query field as retrieved by getQuery(). It will
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268 * not be removed by removeFacet(...)
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270 * @param facetKey i.e. 'au' for author
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271 * @param term i.e. 'Dickens, Charles'
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273 public void setFacetOnQuery (String facetKey, String term) {
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274 String facetExpression = facetKey + "=" + term;
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275 if (term != null && term.length()>0) {
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276 String currentQuery= getParameterValue("query");
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277 setParameter(new CommandParameter("query","=", currentQuery + " and " + facetExpression));
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282 * Removes a facet set by setFacet(...)
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284 * Will not remove facets set by setFacetOnQuery(...)
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286 * @param facetKey i.e. 'au' for author
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287 * @param term i.e. 'Dickens, Charles'
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289 public void removeFacet(String facetKey, String term) {
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290 if (getParameter("query") != null) {
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291 getParameter("query").removeExpression(new Expression(facetKey,"=",term,null));
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295 public SearchCommand copy () {
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296 SearchCommand newCommand = new SearchCommand();
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297 for (String parameterName : parameters.keySet()) {
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298 newCommand.setParameterInState(parameters.get(parameterName).copy());
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304 public ServiceProxyCommand getSp() {
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309 public boolean spOnly() {
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