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Eclipse Compiler for Java(TM)
/*******************************************************************************
* Copyright (c) 2000, 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
* Stephan Herrmann - Contribution for
* Bug 440477 - [null] Infrastructure for feeding external annotations into compilation
* Bug 440687 - [compiler][batch][null] improve command line option for external annotations
*******************************************************************************/
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.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
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.TypeConstants;
import org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.ExternalAnnotationStatus;
import org.eclipse.jdt.internal.compiler.util.ManifestAnalyzer;
import org.eclipse.jdt.internal.compiler.util.SuffixConstants;
import org.eclipse.jdt.internal.compiler.util.Util;
@SuppressWarnings({"rawtypes", "unchecked"})
public class ClasspathJar extends ClasspathLocation {
protected File file;
protected ZipFile zipFile;
protected ZipFile annotationZipFile;
protected boolean closeZipFileAtEnd;
protected Set packageCache;
protected List annotationPaths;
public ClasspathJar(File file, boolean closeZipFileAtEnd,
AccessRuleSet accessRuleSet, String destinationPath) {
super(accessRuleSet, destinationPath);
this.file = file;
this.closeZipFileAtEnd = closeZipFileAtEnd;
}
@Override
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(TypeConstants.META_INF_MANIFEST_MF);
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 | IllegalArgumentException e) {
// JRE 9 could throw an IAE if the path is incorrect. We are to ignore such
// linked jars
return null;
} finally {
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException e) {
// best effort
}
}
}
}
@Override
public NameEnvironmentAnswer findClass(char[] typeName, String qualifiedPackageName, String moduleName, String qualifiedBinaryFileName) {
return findClass(typeName, qualifiedPackageName, moduleName, qualifiedBinaryFileName, false);
}
@Override
public NameEnvironmentAnswer findClass(char[] typeName, String qualifiedPackageName, String moduleName, String qualifiedBinaryFileName, boolean asBinaryOnly) {
if (!isPackage(qualifiedPackageName, moduleName))
return null; // most common case
try {
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) {
return this.zipFile.getEntry(qualifiedTypeName+ExternalAnnotationProvider.ANNOTATION_FILE_SUFFIX) != null;
}
@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 last = fileName.lastIndexOf('/');
if (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);
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 void initialize() throws IOException {
if (this.zipFile == null) {
this.zipFile = new ZipFile(this.file);
}
}
void acceptModule(ClassFileReader reader) {
if (reader != null) {
acceptModule(reader.getModuleDeclaration());
}
}
void acceptModule(byte[] content) {
if (content == null)
return;
ClassFileReader reader = null;
try {
reader = new ClassFileReader(content, IModule.MODULE_INFO_CLASS.toCharArray());
} catch (ClassFormatException e) {
e.printStackTrace();
}
if (reader != null && reader.getModuleDeclaration() != null) {
acceptModule(reader);
}
}
protected void addToPackageCache(String fileName, boolean endsWithSep) {
int last = endsWithSep ? fileName.length() : fileName.lastIndexOf('/');
while (last > 0) {
// extract the package name
String packageName = fileName.substring(0, last);
if (this.packageCache.contains(packageName))
return;
this.packageCache.add(packageName);
last = packageName.lastIndexOf('/');
}
}
@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(); ) {
String fileName = ((ZipEntry) e.nextElement()).getName();
addToPackageCache(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(); ) {
String fileName = e.nextElement().getName();
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 char[][] listPackages() {
Set packageNames = new HashSet<>();
for (Enumeration e = this.zipFile.entries(); e.hasMoreElements(); ) {
String fileName = e.nextElement().getName();
int lastSlash = fileName.lastIndexOf('/');
if (lastSlash != -1 && fileName.toLowerCase().endsWith(SUFFIX_STRING_class))
packageNames.add(fileName.substring(0, lastSlash).replace('/', '.'));
}
return packageNames.stream().map(String::toCharArray).toArray(char[][]::new);
}
@Override
public void reset() {
super.reset();
if (this.closeZipFileAtEnd) {
if (this.zipFile != null) {
try {
this.zipFile.close();
} catch(IOException e) {
// ignore
}
this.zipFile = null;
}
if (this.annotationZipFile != null) {
try {
this.annotationZipFile.close();
} catch(IOException e) {
// ignore
}
this.annotationZipFile = null;
}
}
this.packageCache = null;
this.annotationPaths = null;
}
@Override
public String toString() {
return "Classpath for jar file " + this.file.getPath(); //$NON-NLS-1$
}
@Override
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;
}
@Override
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;
}
@Override
public int getMode() {
return BINARY;
}
@Override
public IModule getModule() {
return this.module;
}
}