org.codehaus.plexus.util.io.CachingWriter Maven / Gradle / Ivy
package org.codehaus.plexus.util.io;
/*
* Copyright The Codehaus Foundation.
*
* Licensed 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.IOException;
import java.io.OutputStreamWriter;
import java.io.StringWriter;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Arrays;
import java.util.Objects;
/**
* Caching Writer to avoid overwriting a file with
* the same content.
*/
public class CachingWriter extends OutputStreamWriter
{
private final CachingOutputStream cos;
public CachingWriter( File path, Charset charset ) throws IOException
{
this( Objects.requireNonNull( path ).toPath(), charset );
}
public CachingWriter( Path path, Charset charset ) throws IOException
{
this( path, charset, 32 * 1024 );
}
public CachingWriter( Path path, Charset charset, int bufferSize ) throws IOException
{
this( new CachingOutputStream( path, bufferSize ), charset );
}
private CachingWriter( CachingOutputStream outputStream, Charset charset ) throws IOException
{
super( outputStream, charset );
this.cos = outputStream;
}
public boolean isModified()
{
return cos.isModified();
}
}