/*******************************************************************************
* Copyright (c) 2000, 2005 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.aspectj.org.eclipse.jdt.internal.core.search.matching;
import java.io.IOException;
import org.eclipse.core.runtime.*;
import org.aspectj.org.eclipse.jdt.core.IJavaElement;
import org.aspectj.org.eclipse.jdt.core.search.*;
import org.aspectj.org.eclipse.jdt.internal.compiler.env.AccessRuleSet;
import org.aspectj.org.eclipse.jdt.internal.compiler.util.Util;
import org.aspectj.org.eclipse.jdt.internal.core.index.*;
import org.aspectj.org.eclipse.jdt.internal.core.search.*;
/**
* Internal search pattern implementation
*/
public abstract class InternalSearchPattern {
/**
* The focus element (used for reference patterns)
*/
IJavaElement focus;
int kind;
boolean mustResolve = true;
void acceptMatch(String relativePath, String containerPath, SearchPattern pattern, IndexQueryRequestor requestor, SearchParticipant participant, IJavaSearchScope scope) {
if (scope instanceof JavaSearchScope) {
JavaSearchScope javaSearchScope = (JavaSearchScope) scope;
// Get document path access restriction from java search scope
// Note that requestor has to verify if needed whether the document violates the access restriction or not
AccessRuleSet access = javaSearchScope.getAccessRuleSet(relativePath, containerPath);
if (access != JavaSearchScope.NOT_ENCLOSED) { // scope encloses the document path
String documentPath = documentPath(containerPath, relativePath);
if (!requestor.acceptIndexMatch(documentPath, pattern, participant, access))
throw new OperationCanceledException();
}
} else {
String documentPath = documentPath(containerPath, relativePath);
if (scope.encloses(documentPath))
if (!requestor.acceptIndexMatch(documentPath, pattern, participant, null))
throw new OperationCanceledException();
}
}
SearchPattern currentPattern() {
return (SearchPattern) this;
}
String documentPath(String containerPath, String relativePath) {
String separator = Util.isArchiveFileName(containerPath) ? IJavaSearchScope.JAR_FILE_ENTRY_SEPARATOR : "/"; //$NON-NLS-1$
StringBuffer buffer = new StringBuffer(containerPath.length() + separator.length() + relativePath.length());
buffer.append(containerPath);
buffer.append(separator);
buffer.append(relativePath);
return buffer.toString();
}
/**
* Query a given index for matching entries. Assumes the sender has opened the index and will close when finished.
*/
void findIndexMatches(Index index, IndexQueryRequestor requestor, SearchParticipant participant, IJavaSearchScope scope, IProgressMonitor monitor) throws IOException {
if (monitor != null && monitor.isCanceled()) throw new OperationCanceledException();
try {
index.startQuery();
SearchPattern pattern = currentPattern();
EntryResult[] entries = ((InternalSearchPattern)pattern).queryIn(index);
if (entries == null) return;
SearchPattern decodedResult = pattern.getBlankPattern();
String containerPath = index.containerPath;
for (int i = 0, l = entries.length; i < l; i++) {
if (monitor != null && monitor.isCanceled()) throw new OperationCanceledException();
EntryResult entry = entries[i];
decodedResult.decodeIndexKey(entry.getWord());
if (pattern.matchesDecodedKey(decodedResult)) {
// TODO (kent) some clients may not need the document names
String[] names = entry.getDocumentNames(index);
for (int j = 0, n = names.length; j < n; j++)
acceptMatch(names[j], containerPath, decodedResult, requestor, participant, scope);
}
}
} finally {
index.stopQuery();
}
}
boolean isPolymorphicSearch() {
return false;
}
EntryResult[] queryIn(Index index) throws IOException {
SearchPattern pattern = (SearchPattern) this;
return index.query(pattern.getIndexCategories(), pattern.getIndexKey(), pattern.getMatchRule());
}
}