/*******************************************************************************
* Copyright (c) 2000, 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.aspectj.org.eclipse.jdt.internal.core.builder;
import java.io.IOException;
import org.eclipse.core.resources.*;
import org.eclipse.core.runtime.*;
import org.aspectj.org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader;
import org.aspectj.org.eclipse.jdt.internal.compiler.classfmt.ClassFormatException;
import org.aspectj.org.eclipse.jdt.internal.compiler.env.AccessRuleSet;
import org.aspectj.org.eclipse.jdt.internal.compiler.env.NameEnvironmentAnswer;
import org.aspectj.org.eclipse.jdt.internal.compiler.util.SimpleLookupTable;
import org.aspectj.org.eclipse.jdt.internal.compiler.util.SuffixConstants;
import org.aspectj.org.eclipse.jdt.internal.core.util.Util;
public class ClasspathDirectory extends ClasspathLocation {
IContainer binaryFolder; // includes .class files for a single directory
boolean isOutputFolder;
SimpleLookupTable directoryCache;
String[] missingPackageHolder = new String[1];
AccessRuleSet accessRuleSet;
ClasspathDirectory(IContainer binaryFolder, boolean isOutputFolder, AccessRuleSet accessRuleSet) {
this.binaryFolder = binaryFolder;
this.isOutputFolder = isOutputFolder;
this.directoryCache = new SimpleLookupTable(5);
this.accessRuleSet = accessRuleSet;
}
public void cleanup() {
this.directoryCache = null;
}
String[] directoryList(String qualifiedPackageName) {
String[] dirList = (String[]) directoryCache.get(qualifiedPackageName);
if (dirList == missingPackageHolder) return null; // package exists in another classpath directory or jar
if (dirList != null) return dirList;
try {
IResource container = binaryFolder.findMember(qualifiedPackageName); // this is a case-sensitive check
if (container instanceof IContainer) {
IResource[] members = ((IContainer) container).members();
dirList = new String[members.length];
int index = 0;
for (int i = 0, l = members.length; i < l; i++) {
IResource m = members[i];
if (m.getType() == IResource.FILE && org.aspectj.org.eclipse.jdt.internal.compiler.util.Util.isClassFileName(m.getName()))
// add exclusion pattern check here if we want to hide .class files
dirList[index++] = m.getName();
}
if (index < dirList.length)
System.arraycopy(dirList, 0, dirList = new String[index], 0, index);
directoryCache.put(qualifiedPackageName, dirList);
return dirList;
}
} catch(CoreException ignored) {
// ignore
}
directoryCache.put(qualifiedPackageName, missingPackageHolder);
return null;
}
boolean doesFileExist(String fileName, String qualifiedPackageName, String qualifiedFullName) {
String[] dirList = directoryList(qualifiedPackageName);
if (dirList == null) return false; // most common case
for (int i = dirList.length; --i >= 0;)
if (fileName.equals(dirList[i]))
return true;
return false;
}
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof ClasspathDirectory)) return false;
ClasspathDirectory dir = (ClasspathDirectory) o;
if (this.accessRuleSet != dir.accessRuleSet)
if (this.accessRuleSet == null || !this.accessRuleSet.equals(dir.accessRuleSet))
return false;
return this.binaryFolder.equals(dir.binaryFolder);
}
public NameEnvironmentAnswer findClass(String binaryFileName, String qualifiedPackageName, String qualifiedBinaryFileName) {
if (!doesFileExist(binaryFileName, qualifiedPackageName, qualifiedBinaryFileName)) return null; // most common case
ClassFileReader reader = null;
try {
reader = Util.newClassFileReader(this.binaryFolder.getFile(new Path(qualifiedBinaryFileName)));
} catch (CoreException e) {
return null;
} catch (ClassFormatException e) {
return null;
} catch (IOException e) {
return null;
}
if (reader != null) {
if (this.accessRuleSet == null)
return new NameEnvironmentAnswer(reader, null);
String fileNameWithoutExtension = qualifiedBinaryFileName.substring(0, qualifiedBinaryFileName.length() - SuffixConstants.SUFFIX_CLASS.length);
return new NameEnvironmentAnswer(reader, this.accessRuleSet.getViolatedRestriction(fileNameWithoutExtension.toCharArray()));
}
return null;
}
public IPath getProjectRelativePath() {
return binaryFolder.getProjectRelativePath();
}
protected boolean isExcluded(IResource resource) {
return false;
}
public boolean isOutputFolder() {
return isOutputFolder;
}
public boolean isPackage(String qualifiedPackageName) {
return directoryList(qualifiedPackageName) != null;
}
public void reset() {
this.directoryCache = new SimpleLookupTable(5);
}
public String toString() {
String start = "Binary classpath directory " + this.binaryFolder.getFullPath().toString(); //$NON-NLS-1$
if (this.accessRuleSet == null)
return start;
return start + " with " + this.accessRuleSet; //$NON-NLS-1$
}
public String debugPathString() {
return this.binaryFolder.getFullPath().toString();
}
}