| /******************************************************************************* |
| * Copyright (c) 2000, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.help.internal.search.federated; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.core.runtime.jobs.Job; |
| import org.eclipse.help.internal.HelpPlugin; |
| import org.eclipse.help.internal.base.*; |
| import org.eclipse.help.internal.search.*; |
| import org.eclipse.help.internal.workingset.WorkingSet; |
| import org.eclipse.help.search.*; |
| |
| /** |
| * Local Help search engine participant in the federated search. |
| */ |
| public class LocalHelp implements ISearchEngine2 { |
| private static final int MAX_HITS = 500; |
| |
| private List<String> altList; |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.help.internal.search.federated.ISearchEngine#run(java.lang.String, |
| * org.eclipse.help.internal.search.ISearchScope, |
| * org.eclipse.help.internal.search.federated.ISearchEngineResultCollector, |
| * org.eclipse.core.runtime.IProgressMonitor) |
| */ |
| @Override |
| public void run(String query, ISearchScope scope, |
| final ISearchEngineResultCollector collector, |
| IProgressMonitor monitor) throws CoreException { |
| |
| AbstractSearchProcessor processors[] = SearchManager.getSearchProcessors(); |
| altList = new ArrayList<>(); |
| for (int p=0;p<processors.length;p++) |
| { |
| SearchProcessorInfo result = |
| processors[p].preSearch(query); |
| if (result!=null) |
| { |
| String alternates[] = result.getAlternateTerms(); |
| if (alternates!=null) |
| for (int a=0;a<alternates.length;a++) |
| if (!altList.contains(alternates[a])) |
| altList.add(alternates[a]); |
| |
| String modQuery = result.getQuery(); |
| if (modQuery!=null) |
| query = modQuery; |
| } |
| } |
| Collections.sort(altList); |
| |
| |
| SearchQuery searchQuery = new SearchQuery(); |
| searchQuery.setSearchWord(query); |
| WorkingSet[] workingSets = null; |
| LocalHelpScope localScope = (LocalHelpScope) scope; |
| if (localScope.getWorkingSet() != null) |
| workingSets = new WorkingSet[] { localScope.getWorkingSet() }; |
| SearchResults localResults = new SearchResults(workingSets, MAX_HITS, |
| Platform.getNL()); |
| // If the indexer has been started and is currently running, |
| // wait for it to finish. |
| try { |
| Job.getJobManager().join(IndexerJob.FAMILY, monitor); |
| } catch (InterruptedException e) { |
| } |
| BaseHelpSystem.getSearchManager().search(searchQuery, localResults, |
| monitor); |
| |
| ISearchResult results[] = SearchManager.convertHitsToResults(localResults.getSearchHits()); |
| boolean reset = false; |
| for (int p=0;p<processors.length;p++) |
| { |
| ISearchResult tmp[] = processors[p].postSearch(query,results); |
| if (tmp!=null) |
| { |
| reset = true; |
| results = tmp; |
| } |
| } |
| |
| if (reset) |
| { |
| SearchHit hits[] = SearchManager.convertResultsToHits(results); |
| localResults.setHits(hits); |
| } |
| |
| postResults(localResults, collector, localScope.getCapabilityFiltered()); |
| } |
| |
| private void postResults(SearchResults results, |
| ISearchEngineResultCollector collector, boolean activityFiltering) { |
| if (results.getException() != null) { |
| collector.error(new Status(IStatus.ERROR, HelpBasePlugin.PLUGIN_ID, |
| HelpBaseResources.HelpSearch_QueryTooComplex, results.getException())); |
| } |
| SearchHit[] searchHits = results.getSearchHits(); |
| if (HelpPlugin.DEBUG_SEARCH) { |
| for (int i = 0 ; i < 10 && i < searchHits.length; i++) { |
| System.out.println("Score " + searchHits[i].getScore() //$NON-NLS-1$ |
| + ": " + searchHits[i].getLabel()); //$NON-NLS-1$ |
| } |
| } |
| if (!activityFiltering) { |
| collector.accept(searchHits); |
| return; |
| } |
| // Filtering of results by activities |
| ArrayList<SearchHit> enabledHits = new ArrayList<>(); |
| for (int i = 0; i < searchHits.length; i++) { |
| SearchHit hit = searchHits[i]; |
| if (hit.getParticipantId()!=null) { |
| // hit comes from a search participant |
| if (HelpBasePlugin.getActivitySupport().isEnabled(hit.getHref())) |
| enabledHits.add(hit); |
| } |
| else if (HelpBasePlugin.getActivitySupport().isEnabledTopic( |
| hit.getHref(), Platform.getNL())) { |
| enabledHits.add(hit); |
| } |
| } |
| collector.accept(enabledHits |
| .toArray(new SearchHit[enabledHits.size()])); |
| } |
| |
| public String toAbsoluteHref(String href, boolean frames) { |
| return null; |
| } |
| |
| public List<String> getAlternates() |
| { |
| return altList; |
| } |
| |
| @Override |
| public boolean open(String id) { |
| int sep = id.indexOf('/'); |
| if (sep== -1) |
| return false; |
| String participantId = id.substring(0, sep); |
| id = id.substring(sep+1); |
| SearchParticipant participant = BaseHelpSystem.getLocalSearchManager().getGlobalParticipant(participantId); |
| if (participant==null) |
| return false; |
| try { |
| return participant.open(id); |
| } |
| catch (Throwable t) { |
| HelpBasePlugin.logError("Error occured in search participant trying to open document with id: " + id + ", participant: " + participant.getClass().getName(), t); //$NON-NLS-1$ //$NON-NLS-2$ |
| return false; |
| } |
| } |
| } |