List of usage examples for org.apache.lucene.search Sort Sort
public Sort()
From source file:SearchHelpDocs.java
License:Open Source License
/** * Default search, sort by score and date *//*from www . j av a 2s .co m*/ private static Sort createSort() throws Exception { Sort sort = new Sort(); SortField fields[] = { SortField.FIELD_SCORE, new SortField("yyyymmdd", SortField.STRING, true) }; sort.setSort(fields); return sort; }
From source file:CFX_GoatSearch.java
License:Open Source License
/** * Classes that implement this interface can be specified in the CLASS attribute of the Java CFX tag. For example, in a class MyCustomTag, which implements this interface, the following CFML code calls the MyCustomTag.processRequest method. * * @param request/*from w ww . ja v a2 s . c o m*/ * @param response * @throws Exception */ public void processRequest(Request request, Response response) throws Exception { Date startTime = new Date(); String indexPath = null; String queryName = null; String searchString = null; String sortField = null; String sortDirection = null; int hitsPerPage = 0; int pageNumber = 0; Vector errors = new Vector(); if (request.attributeExists("INDEXPATH")) { indexPath = request.getAttribute("INDEXPATH"); } else { errors.add("The cfx_lucene tag requires an attribute called 'INDEXPATH'."); } if (request.attributeExists("HITSPERPAGE")) { hitsPerPage = request.getIntAttribute("HITSPERPAGE"); } if (request.attributeExists("PAGENUMBER")) { pageNumber = request.getIntAttribute("PAGENUMBER"); } if (request.attributeExists("QUERYNAME")) { queryName = request.getAttribute("QUERYNAME"); } else { errors.add("The cfx_lucene tag requires an attribute called 'QUERYNAME'."); } if (request.attributeExists("SEARCHSTRING")) { searchString = request.getAttribute("SEARCHSTRING"); } else { errors.add("The cfx_lucene tag requires an attribute called 'SEARCHSTRING'."); } //Sorting if (request.attributeExists("SORTFIELD")) { sortField = request.getAttribute("SORTFIELD"); } if (request.attributeExists("SORTDIRECTION")) { sortDirection = request.getAttribute("SORTDIRECTION"); } //Errors if (!errors.isEmpty()) { response.write("<h2 style=\"color: #FF0000\">CFX Goat Error:</h2>"); for (int i = 0; i < errors.size(); i++) { response.write("<p>Error: " + errors.get(i) + "</p>\n"); } //return; } else { try { IndexReader reader = IndexReader.open(indexPath); IndexSearcher searcher = new IndexSearcher(indexPath); if (searcher == null) { errors.add("Unable to open index"); } XMLReader readerXML = new XMLReader(); //XML Reader Class String configFile = ConfigFiles.getSchemaFile(indexPath); String[] indexTypeArray = new String[Integer.parseInt(readerXML.getTotalNodes(configFile))]; String[] columnNamesArray = new String[Integer.parseInt(readerXML.getTotalNodes(configFile))]; //Add Column Names int totalNodes = columnNamesArray.length; String nodeName = ""; //Sort .:. Index Type must be PrimaryKey,Keyword,Date Sort sortby = new Sort(); if (sortField != null) sortField.trim().toLowerCase(); //Change Field TO LowerCase Analyzer analyzer = new StandardAnalyzer(); QueryParser parser = new MultiFieldQueryParser(columnNamesArray, analyzer); Query query = parser.parse(searchString); if (query == null) { errors.add("Unable to build Query"); } //Build Query Here //Get Column Names for (int i = 0; i < totalNodes; i++) { columnNamesArray[i] = readerXML.getNodeValueByFile(configFile, i, "columnname"); indexTypeArray[i] = readerXML.getNodeValueByFile(configFile, i, "indextype"); /* Make Sure Field Can Be Seached */ if (columnNamesArray[i].equalsIgnoreCase(sortField) && (indexTypeArray[i].equalsIgnoreCase("PrimaryKey") || indexTypeArray[i].equalsIgnoreCase("Keyword") || indexTypeArray[i].equalsIgnoreCase("Date"))) { //Sort Ascending if (sortDirection != null && sortDirection.equalsIgnoreCase("desc")) { System.out.println("desc"); sortby = new Sort(sortField, true); } else if (sortDirection != null && sortDirection.equalsIgnoreCase("asc")) { System.out.println("asc"); sortby = new Sort(sortField, false); } } } if (hitsPerPage < 1) hitsPerPage = 1; int pageNum = pageNumber; int recordSet = (pageNum * hitsPerPage) + 100; TopFieldDocs resultDocs = searcher.search(query, null, recordSet, sortby); ScoreDoc[] hits = resultDocs.scoreDocs; int numTotalHits = resultDocs.totalHits; //Start int start = (pageNum - 1); if (start < 0) start = 0; if (pageNum > 1) { start = (pageNum * hitsPerPage) - hitsPerPage; } int end = (pageNum * hitsPerPage); end = Math.min(hits.length, start + hitsPerPage); //Coldfusion Query com.allaire.cfx.Query goatQuery = response.addQuery(queryName, columnNamesArray); for (int i = start; i < end; i++) { int row = goatQuery.addRow(); //Add Row int docId = hits[i].doc; Document d = searcher.doc(docId); for (int x = 0; x < totalNodes; x++) { nodeName = columnNamesArray[x]; goatQuery.setData(row, (x + 1), d.get(nodeName)); //Insert Values .:. Set Data starts with 1 } } //reader.close(); searcher.close(); Date endTime = new Date(); //Set other Values response.setVariable("goat.totaltime", Long.toString(endTime.getTime() - startTime.getTime())); response.setVariable("goat.totalresults", Integer.toString(numTotalHits)); response.setVariable("goat.totalpages", Integer.toString((numTotalHits / hitsPerPage))); } catch (Exception e) { errors.add("Failure caught a " + e.getClass() + " with message: " + e.getMessage()); } } //Output Final Errors If Needed if (!errors.isEmpty()) { response.write("<h2 style=\"color: #FF0000\">CFX Goat Error:</h2>"); for (int i = 0; i < errors.size(); i++) { response.write("<p>Error: " + errors.get(i) + "</p>\n"); } } }
From source file:ca.dracode.ais.indexer.FileSearcher.java
License:Open Source License
/** * Searches for matches in the contents of a single file * <p>// w ww . ja v a 2s . co m * For example, a search with the term "Foo" and the constrainValue "/Bar.txt" * will return pages with contents related to "Foo" only from inside the file "/Bar.txt" * </p> * @param id Identifier for the instance of ClientService that spawned the search * @param term The search term for choosing and ranking results * @param field The field to search, i.e. "contents" * @param constrainValue The path to which to constrain the search * @param constrainField The field used to constrain searches * @param maxResults The maximum number of results that will be returned * @param set The set number, e.g., searching set 0 returns the first n results, * searching set 1 returns the 2nd n results. A negative set can be used to search * backwards from a page. * @param type The type of the search, one of QUERY_BOOLEAN or QUERY_STANDARD * @return A SearchResult containing the results sorted by relevance and page */ public SearchResult findInFile(int id, String term, String field, String constrainValue, String constrainField, int maxResults, int set, int type, final int page) { Query qry = this.getQuery(term, field, type); Log.i(TAG, "Query: " + term + " " + field + " " + type + " " + constrainValue); if (this.interrupt == id) { this.interrupt = -1; return null; } if (qry != null) { String[] values = { constrainValue }; Filter filter; ScoreDoc[] hits = null; try { Log.i(TAG, "Searching..."); Sort sort; if (type == QUERY_STANDARD) { sort = new Sort(); filter = this.getFilter(constrainField, Arrays.asList(values), type, page, Integer.MAX_VALUE); hits = indexSearcher.search(qry, filter, maxResults * set + maxResults, sort).scoreDocs; } else { if (set >= 0) { sort = new Sort(new SortField("page", SortField.Type.INT)); filter = this.getFilter(constrainField, Arrays.asList(values), type, page, Integer.MAX_VALUE); hits = indexSearcher.search(qry, filter, maxResults * set + maxResults, sort).scoreDocs; if (hits.length < maxResults) { filter = this.getFilter(constrainField, Arrays.asList(values), type, 0, page - 1); hits = concat(hits, indexSearcher.search(qry, filter, maxResults, sort).scoreDocs); } } else { sort = new Sort(new SortField("page", SortField.Type.INT, true)); filter = this.getFilter(constrainField, Arrays.asList(values), type, 0, page - 1); hits = indexSearcher.search(qry, filter, Integer.MAX_VALUE, sort).scoreDocs; if (hits.length < maxResults) { filter = this.getFilter(constrainField, Arrays.asList(values), type, page, Integer.MAX_VALUE); hits = concat(hits, indexSearcher.search(qry, filter, maxResults - hits.length, sort).scoreDocs); } else { ScoreDoc[] tmp = hits; hits = new ScoreDoc[maxResults * -(set + 1) + maxResults]; System.arraycopy(tmp, 0, hits, 0, maxResults * -(set + 1) + maxResults); } } } } catch (IOException e) { Log.e(TAG, "Error ", e); } if (this.interrupt == id) { this.interrupt = -1; return null; } if (hits != null) { Log.i(TAG, "Found instance of term in " + hits.length + " documents"); return this.getHighlightedResults(this.getDocs(maxResults, set, hits), qry, type, term, maxResults); } } else { Log.e(TAG, "Query Type: " + type + " not recognised"); return null; } return null; }
From source file:com.bewsia.script.safe.lucene.SEntity.java
License:Open Source License
public Sort newSort() { return new Sort(); }
From source file:com.bloatit.data.search.FeatureSearch.java
License:Open Source License
@Override protected void prepareSearch() { enableFilter("searchFilter"); final Sort sort = new Sort(); switch (sortMethod) { case SORT_BY_CONTRIBUTION: sort.setSort(new SortField("contribution", SortField.FLOAT, true), new SortField("progress", SortField.FLOAT, true)); break;//from w w w . j a va 2 s . co m case SORT_BY_CREATION_DATE: sort.setSort(new SortField("creationDate", SortField.STRING, true), new SortField("popularity", SortField.INT, true)); break; case SORT_BY_EXPIRATION_DATE: sort.setSort(new SortField("selectedOffer.expirationDate", SortField.LONG, true), new SortField("popularity", SortField.INT, true)); break; case SORT_BY_POPULARITY: sort.setSort(new SortField("popularity", SortField.INT, true)); break; case SORT_BY_PROGRESS: sort.setSort(new SortField("featureState", SortField.STRING), new SortField("progress", SortField.FLOAT, true)); break; case SORT_BY_RELEVANCE: sort.setSort(SortField.FIELD_SCORE, new SortField("popularity", SortField.INT, true)); break; } setSort(sort); }
From source file:com.ideabase.repository.core.search.impl.RepositoryItemSearchImpl.java
License:Open Source License
private void applySortingFilter(final Query pQuery, final RepositoryItemSearchImpl.RepositoryHitCollectorImpl pHitCollector, final LuceneSearcher pSearcher) throws IOException { Sort sort = new Sort(); final List<SortField> sortFields = new ArrayList<SortField>(); for (final Map.Entry<String, Boolean> entry : pQuery.getSortableFields().entrySet()) { // verify special field like relevant and indexoredered final String key = entry.getKey(); final Boolean decending = entry.getValue(); if (SORT_RELEVANT.equalsIgnoreCase(key)) { LOG.debug("Applying relevance sorting."); sort = Sort.RELEVANCE;/*from w w w. j a v a2 s.co m*/ break; } else if (SORT_INDEXORDERED.equalsIgnoreCase(key)) { LOG.debug("Applying Index ordered sorting."); sort = Sort.INDEXORDER; break; } else { if (LOG.isDebugEnabled()) { LOG.debug("Applying sort field - " + key); } if (key.startsWith(CommonConstants.FIELD_PREFIX_PRICE) || key.endsWith(CommonConstants.FIELD_SUFFIX_ID) || key.endsWith(CommonConstants.FIELD_SUFFIX_DATE)) { sortFields.add(new SortField(key, mNumberSortComparator, decending.booleanValue())); } else { sortFields.add(new SortField(key, decending.booleanValue())); } } } if (!sortFields.isEmpty()) { sort.setSort(sortFields.toArray(new SortField[] {})); } if (LOG.isDebugEnabled()) { LOG.debug("Sortable fields - " + sort); } // perform lucene search and collect the search hits. populateHitCollector(pHitCollector, pSearcher.search(pQuery.buildQuery(), sort)); }
From source file:com.mysema.query.lucene.LuceneSerializer.java
License:Apache License
public Sort toSort(List<? extends OrderSpecifier<?>> orderBys) { List<SortField> sorts = new ArrayList<SortField>(orderBys.size()); for (OrderSpecifier<?> order : orderBys) { if (!(order.getTarget() instanceof Path<?>)) { throw new IllegalArgumentException("argument was not of type Path."); }// w w w . jav a2 s. co m Class<?> type = order.getTarget().getType(); boolean reverse = !order.isAscending(); Path<?> path = getPath(order.getTarget()); if (Number.class.isAssignableFrom(type)) { sorts.add(new SortField(toField(path), sortFields.get(type), reverse)); } else { sorts.add(new SortField(toField(path), sortLocale, reverse)); } } Sort sort = new Sort(); sort.setSort(sorts.toArray(new SortField[sorts.size()])); return sort; }
From source file:com.querydsl.lucene4.LuceneSerializer.java
License:Apache License
public Sort toSort(List<? extends OrderSpecifier<?>> orderBys) { List<SortField> sorts = new ArrayList<SortField>(orderBys.size()); for (OrderSpecifier<?> order : orderBys) { if (!(order.getTarget() instanceof Path<?>)) { throw new IllegalArgumentException("argument was not of type Path."); }//from ww w . jav a2s . com Class<?> type = order.getTarget().getType(); boolean reverse = !order.isAscending(); Path<?> path = getPath(order.getTarget()); if (Number.class.isAssignableFrom(type)) { sorts.add(new SortField(toField(path), sortFields.get(type), reverse)); } else { sorts.add(new SortField(toField(path), SortField.Type.STRING, reverse)); } } Sort sort = new Sort(); sort.setSort(sorts.toArray(new SortField[sorts.size()])); return sort; }
From source file:com.querydsl.lucene5.LuceneSerializer.java
License:Apache License
public Sort toSort(List<? extends OrderSpecifier<?>> orderBys) { List<SortField> sorts = new ArrayList<SortField>(orderBys.size()); for (OrderSpecifier<?> order : orderBys) { if (!(order.getTarget() instanceof Path<?>)) { throw new IllegalArgumentException("argument was not of type Path."); }/* w ww .j a v a 2 s .co m*/ Class<?> type = order.getTarget().getType(); boolean reverse = !order.isAscending(); Path<?> path = getPath(order.getTarget()); if (Number.class.isAssignableFrom(type)) { sorts.add(new SortedNumericSortField(toField(path), sortFields.get(type), reverse)); } else { sorts.add(new SortField(toField(path), SortField.Type.STRING, reverse)); } } Sort sort = new Sort(); sort.setSort(sorts.toArray(new SortField[sorts.size()])); return sort; }
From source file:com.revorg.goat.SearchDatabase.java
License:Open Source License
/** * This demonstrates a typical paging search scenario, where the search engine presents * pages of size n to the user. The user can then go to the next page if interested in * the next hits.// w w w . j a va 2s . c o m * * When the query is executed for the first time, then only enough results are collected * to fill 5 result pages. If the user wants to page beyond this limit, then the query * is executed another time and all hits are collected. * * @param indexPath Directory that contains the Lucene Collection * @param searcher The searcher used by Lucene * @param hitsPerPage Number of hits per page * @param pageNum The page number to search * @param searchType The type of results to return * @param sortField The field to sort on if needed * @param sortDirection The direction to sort by * @throws Exception * @return ActionResult */ private static String doPagingSearch(String indexPath, Searcher searcher, Query query, int hitsPerPage, int pageNum, String searchType, String sortField, String sortDirection) throws Exception { try { XMLReader readerXML = new XMLReader(); //XML Reader Class String configFile = ConfigFiles.getSchemaFile(indexPath); String[] indexTypeArray = new String[Integer.parseInt(readerXML.getTotalNodes(configFile))]; String[] columnNamesArray = new String[Integer.parseInt(readerXML.getTotalNodes(configFile))]; int totalNodes = columnNamesArray.length; String textResultSet = ""; String nodeName = ""; //Sort .:. Index Type must be PrimaryKey,Keyword,Date Sort sortby = new Sort(); if (sortField != null) sortField.trim().toLowerCase(); //Change Field TO LowerCase //Get Column Names for (int i = 0; i < totalNodes; i++) { columnNamesArray[i] = readerXML.getNodeValueByFile(configFile, i, "columnname"); indexTypeArray[i] = readerXML.getNodeValueByFile(configFile, i, "indextype"); /* Make Sure Field Can Be Seached */ if (columnNamesArray[i].equalsIgnoreCase(sortField) && (indexTypeArray[i].equalsIgnoreCase("PrimaryKey") || indexTypeArray[i].equalsIgnoreCase("Keyword") || indexTypeArray[i].equalsIgnoreCase("Date"))) { //Sort Ascending if (sortDirection != null && sortDirection.equalsIgnoreCase("desc")) { System.out.println("desc"); sortby = new Sort(sortField, true); } else if (sortDirection != null && sortDirection.equalsIgnoreCase("asc")) { System.out.println("asc"); sortby = new Sort(sortField, false); } } } if (hitsPerPage == 0) hitsPerPage = 1; int recordSet = (pageNum * hitsPerPage) + 100; //VERSION 1 OF SIMPLE RESULT SET // Collect enough docs to show 5 pages //TopDocCollector collector = new TopDocCollector((pageNum * hitsPerPage)+100); //searcher.search(query, collector); //ScoreDoc[] hits = collector.topDocs().scoreDocs; //int numTotalHits = collector.getTotalHits(); TopFieldDocs resultDocs = searcher.search(query, null, recordSet, sortby); ScoreDoc[] hits = resultDocs.scoreDocs; int numTotalHits = resultDocs.totalHits; //Start int start = (pageNum - 1); if (start < 0) start = 0; if (pageNum > 1) { start = (pageNum * hitsPerPage) - hitsPerPage; } int end = (pageNum * hitsPerPage); if (searchType.equalsIgnoreCase("xml") && numTotalHits == 0) { textResultSet = "<?xml version=\"1.0\" encoding=\"utf-8\"?>" + System.getProperty("line.separator"); textResultSet = textResultSet + "<goaterror>\n" + " <error type=\"noresults\" code=\"1.1\">\n" + " <title>Dang. We didn't find anything for you there.</title>\n" + " <text>\n" + " <p> We couldn't find any result for <strong>" + query + "</strong>.</p>\n" + " </text>\n" + " </error>\n" + "</goaterror>"; return textResultSet; } if (searchType.equalsIgnoreCase("xml") && numTotalHits > 0) { textResultSet = "<?xml version=\"1.0\" encoding=\"utf-8\"?>" + System.getProperty("line.separator"); textResultSet = textResultSet + "<resultset>" + System.getProperty("line.separator"); textResultSet = textResultSet + "<searchterm><![CDATA[" + query + "]]></searchterm>" + System.getProperty("line.separator"); textResultSet = textResultSet + "<start>" + (start + 1) + "</start>" + System.getProperty("line.separator"); textResultSet = textResultSet + "<end>" + end + "</end>" + System.getProperty("line.separator"); textResultSet = textResultSet + "<totalresults>" + numTotalHits + "</totalresults>" + System.getProperty("line.separator"); textResultSet = textResultSet + "<totalpages>" + (numTotalHits / hitsPerPage) + "</totalpages>" + System.getProperty("line.separator"); textResultSet = textResultSet + "<rows>"; } /* * V1 IMPLEMENTATION ALSO if (end > hits.length) { collector = new TopDocCollector(numTotalHits); searcher.search(query, collector); hits = collector.topDocs().scoreDocs; } */ end = Math.min(hits.length, start + hitsPerPage); for (int i = start; i < end; i++) { //Document doc = searcher.doc(hits[i].doc); int docId = hits[i].doc; Document d = searcher.doc(docId); for (int x = 0; x < totalNodes; x++) { nodeName = columnNamesArray[x]; //XML if (searchType.equalsIgnoreCase("xml")) { //System.out.println("i " + i + " x " + x + " Node: " + nodeName); if (x == 0) { textResultSet = textResultSet + System.getProperty("line.separator") + "<row number=\"" + (i + 1) + "\"" + " score=\"" + hits[i].score + "\">"; } textResultSet = textResultSet + "<" + nodeName + "><![CDATA[" + d.get(nodeName) + "]]></" + nodeName + ">"; if (x == totalNodes - 1) { textResultSet = textResultSet + "</row>"; } } else if (searchType.equalsIgnoreCase("primary") && indexTypeArray[x].equalsIgnoreCase("PrimaryKey") == true) { if (textResultSet.length() > 0) textResultSet = textResultSet + ","; textResultSet = textResultSet + d.get(nodeName); } } } //Close if (searchType.equalsIgnoreCase("xml") && numTotalHits > 0 && textResultSet.length() > 0) { textResultSet = textResultSet + "</rows></resultset>" + System.getProperty("line.separator"); } else if (searchType.equalsIgnoreCase("primary") && numTotalHits > 0 && textResultSet.length() > 0) { textResultSet = (numTotalHits) + "|" + (numTotalHits / hitsPerPage) + "|" + textResultSet + System.getProperty("line.separator"); } else { return null; } return textResultSet; } catch (Exception e) { ActionResultError = " caught a " + e.getClass() + " with message: " + e.getMessage(); //System.out.println("Failure of DbSchema File: " + xmlFile); } ActionResult = "Failure"; return ActionResult + ActionResultError; }