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/*******************************************************************************
* Copyright (c) 2000, 2016 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.core;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import org.eclipse.core.resources.IStorage;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jdt.core.IJarEntryResource;
import org.eclipse.jdt.core.IJavaModelStatusConstants;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.internal.compiler.util.JRTUtil;
import org.eclipse.jdt.internal.compiler.util.Util;
/**
* A jar entry that represents a non-java file found in a JAR.
*
* @see IStorage
*/
public class JarEntryFile extends JarEntryResource {
private static final IJarEntryResource[] NO_CHILDREN = new IJarEntryResource[0];
public JarEntryFile(String simpleName) {
super(simpleName);
}
@Override
public JarEntryResource clone(Object newParent) {
JarEntryFile file = new JarEntryFile(this.simpleName);
file.setParent(newParent);
return file;
}
@Override
public InputStream getContents() throws CoreException {
IPackageFragmentRoot root = getPackageFragmentRoot();
if (Util.isJrt(root.getPath().toOSString())) {
try {
IPath rootPath = root.getPath();
Object target = JavaModel.getTarget(rootPath, false);
if (target != null && target instanceof File) {
return JRTUtil.getContentFromJrt((File) target, getEntryName(), root.getElementName());
}
} catch (IOException e) {
throw new JavaModelException(e, IJavaModelStatusConstants.IO_EXCEPTION);
}
return null;
} else {
ZipFile zipFile = null;
try {
zipFile = getZipFile();
if (JavaModelManager.ZIP_ACCESS_VERBOSE) {
System.out.println("(" + Thread.currentThread() + ") [JarEntryFile.getContents()] Creating ZipFile on " +zipFile.getName()); //$NON-NLS-1$ //$NON-NLS-2$
}
String entryName = getEntryName();
ZipEntry zipEntry = zipFile.getEntry(entryName);
if (zipEntry == null){
throw new JavaModelException(new JavaModelStatus(IJavaModelStatusConstants.INVALID_PATH, entryName));
}
byte[] contents = Util.getZipEntryByteContent(zipEntry, zipFile);
return new ByteArrayInputStream(contents);
} catch (IOException e){
throw new JavaModelException(e, IJavaModelStatusConstants.IO_EXCEPTION);
} finally {
// avoid leaking ZipFiles
JavaModelManager.getJavaModelManager().closeZipFile(zipFile);
}
}
}
@Override
public IJarEntryResource[] getChildren() {
return NO_CHILDREN;
}
@Override
public boolean isFile() {
return true;
}
@Override
public String toString() {
return "JarEntryFile["+getEntryName()+"]"; //$NON-NLS-2$ //$NON-NLS-1$
}
}
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