| package org.apache.maven.wagon; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import java.io.File; |
| import java.io.FileDescriptor; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.nio.channels.FileChannel; |
| |
| |
| /** |
| * Variant of FileOutputStream which creates the file only when first portion |
| * of data is written. |
| * |
| * @author <a href="mailto:mmaczka@interia.pl">Michal Maczka</a> |
| * |
| */ |
| public class LazyFileOutputStream |
| extends OutputStream |
| { |
| |
| private File file; |
| |
| private FileOutputStream delegee; |
| |
| |
| public LazyFileOutputStream( String filename ) |
| { |
| this.file = new File( filename ); |
| } |
| |
| public LazyFileOutputStream( File file ) |
| { |
| this.file = file; |
| } |
| |
| |
| public void close() |
| throws IOException |
| { |
| if ( delegee != null ) |
| { |
| delegee.close(); |
| } |
| } |
| |
| |
| public boolean equals( Object obj ) |
| { |
| return delegee.equals( obj ); |
| } |
| |
| |
| public void flush() |
| throws IOException |
| { |
| if ( delegee != null ) |
| { |
| delegee.flush(); |
| } |
| } |
| |
| |
| public FileChannel getChannel() |
| { |
| return delegee.getChannel(); |
| } |
| |
| |
| public FileDescriptor getFD() |
| throws IOException |
| { |
| return delegee.getFD(); |
| } |
| |
| public int hashCode() |
| { |
| return delegee.hashCode(); |
| } |
| |
| |
| public String toString() |
| { |
| return delegee.toString(); |
| } |
| |
| public void write( byte[] b ) |
| throws IOException |
| { |
| if ( delegee == null ) |
| { |
| initialize(); |
| } |
| |
| delegee.write( b ); |
| } |
| |
| /** |
| * @see java.io.OutputStream#write(byte[], int, int) |
| */ |
| public void write( byte[] b, int off, int len ) |
| throws IOException |
| { |
| if ( delegee == null ) |
| { |
| initialize(); |
| } |
| |
| delegee.write( b, off, len ); |
| } |
| |
| /** |
| * @param b |
| * @throws java.io.IOException |
| */ |
| public void write( int b ) |
| throws IOException |
| { |
| if ( delegee == null ) |
| { |
| initialize(); |
| } |
| |
| delegee.write( b ); |
| } |
| |
| |
| /** |
| * |
| */ |
| private void initialize() |
| throws FileNotFoundException |
| { |
| delegee = new FileOutputStream( file ); |
| } |
| } |