| /******************************************************************************* |
| * Copyright (c) 2000, 2016 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 |
| * |
| *******************************************************************************/ |
| package org.eclipse.dltk.internal.core; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.IStorage; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.core.runtime.PlatformObject; |
| import org.eclipse.dltk.core.IArchive; |
| import org.eclipse.dltk.core.IArchiveEntry; |
| import org.eclipse.dltk.core.IModelStatusConstants; |
| import org.eclipse.dltk.core.ModelException; |
| |
| public class ArchiveEntryFile extends PlatformObject implements IStorage { |
| |
| private String entryName; |
| private String zipName; |
| private IPath path; |
| private IResource zipResource; |
| private ArchiveProjectFragment archiveProjectFragment; |
| |
| public ArchiveEntryFile(String entryName, String zipName, |
| IPath parentRelativePath, IResource zipResource, |
| ArchiveProjectFragment archiveProjectFragment) { |
| this.entryName = entryName; |
| this.zipName = zipName; |
| this.path = parentRelativePath; |
| this.zipResource = zipResource; |
| this.archiveProjectFragment = archiveProjectFragment; |
| } |
| |
| @Override |
| public InputStream getContents() throws CoreException { |
| try { |
| if (ModelManager.ZIP_ACCESS_VERBOSE) { |
| System.out |
| .println("(" + Thread.currentThread() + ") [JarEntryFile.getContents()] Creating ZipFile on " + this.zipName); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| IArchive zipFile = null; |
| InputStream inputStream = null; |
| try { |
| if (zipResource == null) { |
| zipFile = ModelManager.getModelManager().getArchive( |
| new Path(zipName), archiveProjectFragment); |
| } else { |
| zipFile = ModelManager.getModelManager().getArchive( |
| zipResource.getLocation(), archiveProjectFragment); |
| } |
| IArchiveEntry zipEntry = zipFile.getArchiveEntry(this.path |
| .append(this.entryName).toString()); |
| if (zipEntry == null) { |
| throw new ModelException(new ModelStatus( |
| IModelStatusConstants.INVALID_PATH, this.entryName)); |
| } |
| |
| inputStream = zipFile.getInputStream(zipEntry); |
| final int entrySize = (int) zipEntry.getSize(); |
| if (entrySize >= 0) { |
| final byte[] buf = new byte[entrySize]; |
| int offset = 0; |
| int len; |
| while (entrySize > offset |
| && (len = inputStream.read(buf, offset, entrySize |
| - offset)) > 0) { |
| offset += len; |
| } |
| return new ByteArrayInputStream(buf, 0, offset); |
| } else { |
| byte[] buf = new byte[1024]; |
| int len; |
| ByteArrayOutputStream arrayOut = new ByteArrayOutputStream(); |
| while ((len = inputStream.read(buf)) > 0) { |
| arrayOut.write(buf, 0, len); |
| } |
| return new ByteArrayInputStream(arrayOut.toByteArray()); |
| } |
| } finally { |
| if (inputStream != null) { |
| inputStream.close(); |
| } |
| ModelManager.getModelManager().closeArchive(zipFile); |
| } |
| } catch (IOException e) { |
| throw new ModelException(e, IModelStatusConstants.IO_EXCEPTION); |
| } |
| } |
| |
| @Override |
| public IPath getFullPath() { |
| return path.append(this.entryName); |
| } |
| |
| @Override |
| public String getName() { |
| return new Path(this.entryName).lastSegment(); |
| } |
| |
| @Override |
| public boolean isReadOnly() { |
| return true; |
| } |
| |
| @Override |
| public String toString() { |
| return "JarEntryFile[" + this.zipName + "::" + this.entryName + "]"; //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-1$ |
| } |
| } |