| /* |
| * Copyright (c) 1998, 2021 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // Oracle - initial API and implementation from Oracle TopLink |
| package org.eclipse.persistence.internal.jpa.weaving; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.net.URISyntaxException; |
| import java.util.jar.JarEntry; |
| import java.util.jar.JarOutputStream; |
| |
| /** |
| * The abstract class provides a set of methods to out outputs into the sepcified archive file. |
| */ |
| public abstract class AbstractStaticWeaveOutputHandler{ |
| protected JarOutputStream outputStreamHolder=null; |
| |
| /** |
| * create directory into target directory, or insert directory entry into outputstream. |
| */ |
| abstract public void addDirEntry(String dirPath)throws IOException; |
| |
| /** |
| * Write entry bytes into target, this is usually called if class has been tranformed |
| */ |
| abstract public void addEntry(JarEntry targetEntry,byte[] entryBytes)throws IOException; |
| |
| /** |
| * Write entry into target, this method usually copy original class into target. |
| */ |
| abstract public void addEntry(InputStream jis,JarEntry entry) throws IOException,URISyntaxException; |
| |
| |
| /** |
| * Close the output stream. |
| */ |
| public void closeOutputStream() throws IOException { |
| if(outputStreamHolder!=null){ |
| outputStreamHolder.close(); |
| } |
| } |
| |
| /** |
| * Get the ouput stream instance. |
| */ |
| public JarOutputStream getOutputStream(){ |
| return this.outputStreamHolder; |
| } |
| |
| |
| // This is part of the ugly workaround for a design flaw |
| // in the JDK zip API, the entry will not write into the target zip file |
| // properly if this method not being gone through. |
| protected void readwriteStreams(InputStream in, OutputStream out) throws IOException |
| { |
| int numRead; |
| byte[] buffer = new byte[8*1024]; |
| |
| while ((numRead = in.read(buffer,0,buffer.length)) != -1) { |
| out.write(buffer,0,numRead); |
| } |
| } |
| } |