/*******************************************************************************
* Copyright (c) 2004, 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.jsp.core.internal.java.search;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jdt.core.search.IJavaSearchScope;
import org.eclipse.jdt.core.search.SearchDocument;
import org.eclipse.jdt.core.search.SearchEngine;
import org.eclipse.jdt.core.search.SearchParticipant;
import org.eclipse.jdt.core.search.SearchPattern;
import org.eclipse.jdt.core.search.SearchRequestor;
/**
* Integration of JSP w/ java search.
*
* @author pavery
*/
public class JSPSearchParticipant extends SearchParticipant {
// for debugging
private static final boolean DEBUG = calculateValue();
private static boolean calculateValue() {
String value = Platform.getDebugOption("org.eclipse.jst.jsp.core/debug/jspsearch"); //$NON-NLS-1$
boolean debug = value != null && value.equalsIgnoreCase("true"); //$NON-NLS-1$
return debug;
}
/**
* Important to never return null here or else Java search participation
* will break.
*/
public SearchDocument getDocument(String documentPath) {
SearchDocument sDoc = JSPSearchSupport.getInstance().getSearchDocument(documentPath);
if (sDoc == null) {
// return a dummy doc here so search participation doesn't break
return new NullSearchDocument(documentPath);
}
return sDoc;
}
public String getDescription() {
return "JSP"; //$NON-NLS-1$
}
public IPath[] selectIndexes(SearchPattern pattern, IJavaSearchScope scope) {
JSPPathIndexer indexer = new JSPPathIndexer();
return indexer.getVisibleJspPaths(pattern, scope);
}
public void indexDocument(SearchDocument document, IPath indexPath) {
if (!(document instanceof JavaSearchDocumentDelegate))
return;
// use Java search indexing
SearchEngine.getDefaultSearchParticipant().indexDocument(document, indexPath);
}
public void locateMatches(SearchDocument[] indexMatches, SearchPattern pattern, IJavaSearchScope scope, SearchRequestor requestor, IProgressMonitor monitor) throws CoreException {
if (monitor != null && monitor.isCanceled())
return;
// filter out null matches
List filtered = new ArrayList();
SearchDocument match = null;
for (int i = 0; i < indexMatches.length; i++) {
if (DEBUG)
System.out.println("found possible matching JavaSearchDocumentDelegate: " + indexMatches[i]); //$NON-NLS-1$
match = indexMatches[i];
if (match != null) {
// some matches may be null, or if the index is out of date,
// the file may not even exist
if (match instanceof JavaSearchDocumentDelegate && ((JavaSearchDocumentDelegate) match).getFile().exists())
filtered.add(match);
}
}
indexMatches = (SearchDocument[]) filtered.toArray(new SearchDocument[filtered.size()]);
SearchEngine.getDefaultSearchParticipant().locateMatches(indexMatches, pattern, scope, requestor, monitor);
}
/**
* @see org.eclipse.jdt.core.search.SearchParticipant#getDocument(org.eclipse.core.resources.IFile)
*/
public SearchDocument getDocument(IFile file) {
// never gets called?
return null;
}
}