/*******************************************************************************
* Copyright (c) 2000, 2013 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.jdt.internal.compiler.batch;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFormatException;
import org.eclipse.jdt.internal.compiler.env.AccessRuleSet;
import org.eclipse.jdt.internal.compiler.env.NameEnvironmentAnswer;
import org.eclipse.jdt.internal.compiler.util.ManifestAnalyzer;
import org.eclipse.jdt.internal.compiler.util.Util;
@SuppressWarnings({"rawtypes", "unchecked"})
public class ClasspathJar extends ClasspathLocation {
protected File file;
protected ZipFile zipFile;
protected boolean closeZipFileAtEnd;
protected Hashtable packageCache;
public ClasspathJar(File file, boolean closeZipFileAtEnd,
AccessRuleSet accessRuleSet, String destinationPath) {
super(accessRuleSet, destinationPath);
this.file = file;
this.closeZipFileAtEnd = closeZipFileAtEnd;
}
public List fetchLinkedJars(FileSystem.ClasspathSectionProblemReporter problemReporter) {
// expected to be called once only - if multiple calls desired, consider
// using a cache
InputStream inputStream = null;
try {
initialize();
ArrayList result = new ArrayList();
ZipEntry manifest = this.zipFile.getEntry("META-INF/MANIFEST.MF"); //$NON-NLS-1$
if (manifest != null) { // non-null implies regular file
inputStream = this.zipFile.getInputStream(manifest);
ManifestAnalyzer analyzer = new ManifestAnalyzer();
boolean success = analyzer.analyzeManifestContents(inputStream);
List calledFileNames = analyzer.getCalledFileNames();
if (problemReporter != null) {
if (!success || analyzer.getClasspathSectionsCount() == 1 && calledFileNames == null) {
problemReporter.invalidClasspathSection(getPath());
} else if (analyzer.getClasspathSectionsCount() > 1) {
problemReporter.multipleClasspathSections(getPath());
}
}
if (calledFileNames != null) {
Iterator calledFilesIterator = calledFileNames.iterator();
String directoryPath = getPath();
int lastSeparator = directoryPath.lastIndexOf(File.separatorChar);
directoryPath = directoryPath.substring(0, lastSeparator + 1); // potentially empty (see bug 214731)
while (calledFilesIterator.hasNext()) {
result.add(new ClasspathJar(new File(directoryPath + (String) calledFilesIterator.next()), this.closeZipFileAtEnd, this.accessRuleSet, this.destinationPath));
}
}
}
return result;
} catch (IOException e) {
return null;
} finally {
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException e) {
// best effort
}
}
}
}
public NameEnvironmentAnswer findClass(char[] typeName, String qualifiedPackageName, String qualifiedBinaryFileName) {
return findClass(typeName, qualifiedPackageName, qualifiedBinaryFileName, false);
}
public NameEnvironmentAnswer findClass(char[] typeName, String qualifiedPackageName, String qualifiedBinaryFileName, boolean asBinaryOnly) {
if (!isPackage(qualifiedPackageName))
return null; // most common case
try {
ClassFileReader reader = ClassFileReader.read(this.zipFile, qualifiedBinaryFileName);
if (reader != null)
return new NameEnvironmentAnswer(reader, fetchAccessRestriction(qualifiedBinaryFileName));
} catch(ClassFormatException e) {
// treat as if class file is missing
} catch (IOException e) {
// treat as if class file is missing
}
return null;
}
public char[][][] findTypeNames(String qualifiedPackageName) {
if (!isPackage(qualifiedPackageName))
return null; // most common case
ArrayList answers = new ArrayList();
nextEntry : for (Enumeration e = this.zipFile.entries(); e.hasMoreElements(); ) {
String fileName = ((ZipEntry) e.nextElement()).getName();
// add the package name & all of its parent packages
int last = fileName.lastIndexOf('/');
while (last > 0) {
// extract the package name
String packageName = fileName.substring(0, last);
if (!qualifiedPackageName.equals(packageName))
continue nextEntry;
int indexOfDot = fileName.lastIndexOf('.');
if (indexOfDot != -1) {
String typeName = fileName.substring(last + 1, indexOfDot);
char[] packageArray = packageName.toCharArray();
answers.add(
CharOperation.arrayConcat(
CharOperation.splitOn('/', packageArray),
typeName.toCharArray()));
}
}
}
int size = answers.size();
if (size != 0) {
char[][][] result = new char[size][][];
answers.toArray(result);
return null;
}
return null;
}
public void initialize() throws IOException {
if (this.zipFile == null) {
this.zipFile = new ZipFile(this.file);
}
}
public boolean isPackage(String qualifiedPackageName) {
if (this.packageCache != null)
return this.packageCache.containsKey(qualifiedPackageName);
this.packageCache = new Hashtable(41);
this.packageCache.put(Util.EMPTY_STRING, Util.EMPTY_STRING);
nextEntry : for (Enumeration e = this.zipFile.entries(); e.hasMoreElements(); ) {
String fileName = ((ZipEntry) e.nextElement()).getName();
// add the package name & all of its parent packages
int last = fileName.lastIndexOf('/');
while (last > 0) {
// extract the package name
String packageName = fileName.substring(0, last);
if (this.packageCache.containsKey(packageName))
continue nextEntry;
this.packageCache.put(packageName, packageName);
last = packageName.lastIndexOf('/');
}
}
return this.packageCache.containsKey(qualifiedPackageName);
}
public void reset() {
if (this.zipFile != null && this.closeZipFileAtEnd) {
try {
this.zipFile.close();
} catch(IOException e) {
// ignore
}
this.zipFile = null;
}
this.packageCache = null;
}
public String toString() {
return "Classpath for jar file " + this.file.getPath(); //$NON-NLS-1$
}
public char[] normalizedPath() {
if (this.normalizedPath == null) {
String path2 = this.getPath();
char[] rawName = path2.toCharArray();
if (File.separatorChar == '\\') {
CharOperation.replace(rawName, '\\', '/');
}
this.normalizedPath = CharOperation.subarray(rawName, 0, CharOperation.lastIndexOf('.', rawName));
}
return this.normalizedPath;
}
public String getPath() {
if (this.path == null) {
try {
this.path = this.file.getCanonicalPath();
} catch (IOException e) {
// in case of error, simply return the absolute path
this.path = this.file.getAbsolutePath();
}
}
return this.path;
}
public int getMode() {
return BINARY;
}
}