Android example source code file (ImageOutputStreamWrapper.java)

This example Android source code file (ImageOutputStreamWrapper.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

illegalargumentexception, imageoutputstream, imageoutputstreamwrapper, io, ioexception, outputstream, override

The ImageOutputStreamWrapper.java Android example source code

/*
 * Copyright 2007, The Android Open Source Project
 *
 * 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.
 */

package com.android.internal.awt;

import java.io.IOException;
import java.io.OutputStream;

import javax.imageio.stream.ImageOutputStream;

public class ImageOutputStreamWrapper extends OutputStream {
	
	protected ImageOutputStream mIos;
	
	private byte[] mBuff;
	
	public ImageOutputStreamWrapper(ImageOutputStream ios) {
		if (null == ios) {
			throw new IllegalArgumentException("ImageOutputStream must not be null");
		}
		this.mIos = ios;
		this.mBuff = new byte[1];
	}

	public ImageOutputStream getImageOutputStream() {
		return mIos;
	}
	
	@Override
	public void write(int oneByte) throws IOException {
		mBuff[0] = (byte)oneByte;
		mIos.write(mBuff, 0, 1);
	}

	public void write(byte[] b) throws IOException {
		mIos.write(b, 0, b.length);
	}
	
	public void write(byte[] b, int off, int len) throws IOException {
		mIos.write(b, off, len);
	}
	
	public void flush() throws IOException {
		mIos.flush();
	}
	
    public void close() throws IOException {
    	if (mIos == null) {
    		throw new IOException("Stream already closed");
    	}
        mIos = null;
    }
}