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Eclipse Compiler for Java(TM)
/*******************************************************************************
* Copyright (c) 2018 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.jdt.internal.compiler.batch;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.List;
import java.util.zip.ZipEntry;
import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.internal.compiler.batch.FileSystem.Classpath;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFormatException;
import org.eclipse.jdt.internal.compiler.classfmt.ExternalAnnotationDecorator;
import org.eclipse.jdt.internal.compiler.classfmt.ExternalAnnotationProvider;
import org.eclipse.jdt.internal.compiler.env.AccessRuleSet;
import org.eclipse.jdt.internal.compiler.env.IModule;
import org.eclipse.jdt.internal.compiler.env.NameEnvironmentAnswer;
import org.eclipse.jdt.internal.compiler.env.IBinaryType;
import org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.ExternalAnnotationStatus;
import org.eclipse.jdt.internal.compiler.util.SuffixConstants;
import org.eclipse.jdt.internal.compiler.util.Util;
public class ClasspathJmod extends ClasspathJar {
public static char[] CLASSES = "classes".toCharArray(); //$NON-NLS-1$
public static char[] CLASSES_FOLDER = "classes/".toCharArray(); //$NON-NLS-1$
public ClasspathJmod(File file, boolean closeZipFileAtEnd,
AccessRuleSet accessRuleSet, String destinationPath) {
super(file, closeZipFileAtEnd, accessRuleSet, destinationPath);
}
@Override
public List fetchLinkedJars(FileSystem.ClasspathSectionProblemReporter problemReporter) {
// don't do anything
return null;
}
@Override
public NameEnvironmentAnswer findClass(char[] typeName, String qualifiedPackageName, String moduleName, String qualifiedBinaryFileName, boolean asBinaryOnly) {
if (!isPackage(qualifiedPackageName, moduleName))
return null; // most common case
try {
qualifiedBinaryFileName = new String(CharOperation.append(CLASSES_FOLDER, qualifiedBinaryFileName.toCharArray()));
IBinaryType reader = ClassFileReader.read(this.zipFile, qualifiedBinaryFileName);
if (reader != null) {
char[] modName = this.module == null ? null : this.module.name();
if (reader instanceof ClassFileReader) {
ClassFileReader classReader = (ClassFileReader) reader;
if (classReader.moduleName == null)
classReader.moduleName = modName;
else
modName = classReader.moduleName;
}
searchPaths:
if (this.annotationPaths != null) {
String qualifiedClassName = qualifiedBinaryFileName.substring(0, qualifiedBinaryFileName.length()-SuffixConstants.EXTENSION_CLASS.length()-1);
for (String annotationPath : this.annotationPaths) {
try {
if (this.annotationZipFile == null) {
this.annotationZipFile = ExternalAnnotationDecorator.getAnnotationZipFile(annotationPath, null);
}
reader = ExternalAnnotationDecorator.create(reader, annotationPath, qualifiedClassName, this.annotationZipFile);
if (reader.getExternalAnnotationStatus() == ExternalAnnotationStatus.TYPE_IS_ANNOTATED) {
break searchPaths;
}
} catch (IOException e) {
// don't let error on annotations fail class reading
}
}
// location is configured for external annotations, but no .eea found, decorate in order to answer NO_EEA_FILE:
reader = new ExternalAnnotationDecorator(reader, null);
}
return new NameEnvironmentAnswer(reader, fetchAccessRestriction(qualifiedBinaryFileName), modName);
}
} catch (ClassFormatException | IOException e) {
// treat as if class file is missing
}
return null;
}
@Override
public boolean hasAnnotationFileFor(String qualifiedTypeName) {
qualifiedTypeName = new String(CharOperation.append(CLASSES_FOLDER, qualifiedTypeName.toCharArray()));
return this.zipFile.getEntry(qualifiedTypeName+ExternalAnnotationProvider.ANNOTATION_FILE_SUFFIX) != null;
}
@SuppressWarnings({ "rawtypes", "unchecked" })
@Override
public char[][][] findTypeNames(final String qualifiedPackageName, String moduleName) {
if (!isPackage(qualifiedPackageName, moduleName))
return null; // most common case
final char[] packageArray = qualifiedPackageName.toCharArray();
final 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 first = CharOperation.indexOf(CLASSES_FOLDER, fileName.toCharArray(), false);
int last = fileName.lastIndexOf('/');
if (last > 0) {
// extract the package name
String packageName = fileName.substring(first + 1, last);
if (!qualifiedPackageName.equals(packageName))
continue nextEntry;
int indexOfDot = fileName.lastIndexOf('.');
if (indexOfDot != -1) {
String typeName = fileName.substring(last + 1, indexOfDot);
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 result;
}
return null;
}
@Override
public synchronized char[][] getModulesDeclaringPackage(String qualifiedPackageName, String moduleName) {
if (this.packageCache != null)
return singletonModuleNameIf(this.packageCache.contains(qualifiedPackageName));
this.packageCache = new HashSet<>(41);
this.packageCache.add(Util.EMPTY_STRING);
for (Enumeration e = this.zipFile.entries(); e.hasMoreElements(); ) {
char[] entryName = e.nextElement().getName().toCharArray();
int index = CharOperation.indexOf('/', entryName);
if (index != -1) {
char[] folder = CharOperation.subarray(entryName, 0, index);
if (CharOperation.equals(CLASSES, folder)) {
char[] fileName = CharOperation.subarray(entryName, index + 1, entryName.length);
addToPackageCache(new String(fileName), false);
}
}
}
return singletonModuleNameIf(this.packageCache.contains(qualifiedPackageName));
}
@Override
public boolean hasCompilationUnit(String qualifiedPackageName, String moduleName) {
qualifiedPackageName += '/';
for (Enumeration e = this.zipFile.entries(); e.hasMoreElements(); ) {
char[] entryName = e.nextElement().getName().toCharArray();
int index = CharOperation.indexOf('/', entryName);
if (index != -1) {
char[] folder = CharOperation.subarray(entryName, 0, index);
if (CharOperation.equals(CLASSES, folder)) {
String fileName = new String(CharOperation.subarray(entryName, index + 1, entryName.length));
if (fileName.startsWith(qualifiedPackageName) && fileName.length() > qualifiedPackageName.length()) {
String tail = fileName.substring(qualifiedPackageName.length());
if (tail.indexOf('/') != -1)
continue;
if (tail.toLowerCase().endsWith(SUFFIX_STRING_class))
return true;
}
}
}
}
return false;
}
@Override
public String toString() {
return "Classpath for JMod file " + this.file.getPath(); //$NON-NLS-1$
}
@Override
public IModule getModule() {
return this.module;
}
}