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/*******************************************************************************
* Copyright (c) 2017 IBM Corporation.
*
* 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.core.builder;
import java.io.IOException;
import java.util.Enumeration;
import java.util.function.Predicate;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import org.eclipse.core.runtime.IPath;
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.classfmt.ExternalAnnotationDecorator;
import org.eclipse.jdt.internal.compiler.env.AccessRuleSet;
import org.eclipse.jdt.internal.compiler.env.IBinaryType;
import org.eclipse.jdt.internal.compiler.env.IModule;
import org.eclipse.jdt.internal.compiler.env.NameEnvironmentAnswer;
import org.eclipse.jdt.internal.compiler.util.SimpleSet;
import org.eclipse.jdt.internal.compiler.util.SuffixConstants;
public class ClasspathJMod extends ClasspathJar {
public static char[] CLASSES = "classes".toCharArray(); //$NON-NLS-1$
public static char[] CLASSES_FOLDER = "classes/".toCharArray(); //$NON-NLS-1$
private static int MODULE_DESCRIPTOR_NAME_LENGTH = IModule.MODULE_INFO_CLASS.length();
ClasspathJMod(String zipFilename, long lastModified, AccessRuleSet accessRuleSet, IPath externalAnnotationPath) {
super(zipFilename, lastModified, accessRuleSet, externalAnnotationPath, true);
}
@Override
IModule initializeModule() {
IModule mod = null;
ZipFile file = null;
try {
file = new ZipFile(this.zipFilename);
String fileName = new String(CLASSES_FOLDER) + IModule.MODULE_INFO_CLASS;
ClassFileReader classfile = ClassFileReader.read(file, fileName);
if (classfile != null) {
mod = classfile.getModuleDeclaration();
}
} catch (ClassFormatException | IOException e) {
// do nothing
} finally {
try {
if (file != null)
file.close();
} catch (IOException e) {
// do nothing
}
}
return mod;
}
@Override
public NameEnvironmentAnswer findClass(String binaryFileName, String qualifiedPackageName, String moduleName, String qualifiedBinaryFileName,
boolean asBinaryOnly, Predicate<String> moduleNameFilter) {
if (!isPackage(qualifiedPackageName, moduleName)) return null; // most common case
if (moduleNameFilter != null && this.module != null && !moduleNameFilter.test(String.valueOf(this.module.name())))
return null;
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;
}
String fileNameWithoutExtension = qualifiedBinaryFileName.substring(0, qualifiedBinaryFileName.length() - SuffixConstants.SUFFIX_CLASS.length);
if (this.externalAnnotationPath != null) {
try {
if (this.annotationZipFile == null) {
this.annotationZipFile = ExternalAnnotationDecorator
.getAnnotationZipFile(this.externalAnnotationPath, null);
}
reader = ExternalAnnotationDecorator.create(reader, this.externalAnnotationPath,
fileNameWithoutExtension, this.annotationZipFile);
} catch (IOException e) {
// don't let error on annotations fail class reading
}
}
if (this.accessRuleSet == null)
return new NameEnvironmentAnswer(reader, null, modName);
return new NameEnvironmentAnswer(reader, this.accessRuleSet.getViolatedRestriction(fileNameWithoutExtension.toCharArray()), modName);
}
} catch (IOException e) { // treat as if class file is missing
} catch (ClassFormatException e) { // treat as if class file is missing
}
return null;
}
@Override
protected String readJarContent(final SimpleSet packageSet) {
String modInfo = null;
for (Enumeration<? extends ZipEntry> e = this.zipFile.entries(); e.hasMoreElements(); ) {
ZipEntry entry = e.nextElement();
char[] entryName = entry.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);
if (modInfo == null && fileName.length == MODULE_DESCRIPTOR_NAME_LENGTH) {
if (CharOperation.equals(fileName, IModule.MODULE_INFO_CLASS.toCharArray())) {
modInfo = new String(entryName);
}
}
addToPackageSet(packageSet, new String(fileName), false);
}
}
}
return modInfo;
}
}
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