alfresco-community-repo/source/java/org/alfresco/repo/avm/AVMRemoteOutputStream.java

/*
 * Copyright (C) 2006 Alfresco, Inc.
 *
 * Licensed under the Mozilla Public License version 1.1 
 * with a permitted attribution clause. You may obtain a
 * copy of the License at
 *
 *   http://www.alfresco.org/legal/license.txt
 *
 * 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 org.alfresco.repo.avm;

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

public class AVMRemoteOutputStream extends OutputStream 
{
    private AVMRemote fAVMRemote;
    
    private String fHandle;
    
    /**
     * Create a new one.
     * @param handle The handle returned from an AVMRemote call.
     * @param remote The AVMRemote instance.
     */
    public AVMRemoteOutputStream(String handle, AVMRemote remote)
    {
        fAVMRemote = remote;
        fHandle = handle;
    }
    
    /**
     * Write one character.
     * @param b The character.
     */
    @Override
    public void write(int b) 
        throws IOException 
    {
        byte [] buff = new byte[1];
        buff[0] = (byte)b;
        write(buff);
    }

    /**
     * Close the stream.
     */
    @Override
    public void close() 
        throws IOException 
    {
        try
        {
            fAVMRemote.closeOutputHandle(fHandle);
        }
        catch (Exception e)
        {
            throw new IOException("IO Error: " + e);
        }
    }

    /**
     * Write a portion of a block of bytes.
     * @param b The buffer containing the data.
     * @param off The offset into the buffer.
     * @param len The number of bytes to write.
     */
    @Override
    public void write(byte[] b, int off, int len) 
    throws IOException 
    {
        try
        {
            if (off == 0)
            {
                fAVMRemote.writeOutput(fHandle, b, len);
            }
            else
            {
                byte [] buff = new byte[len];
                System.arraycopy(b, off, buff, 0, len);
                fAVMRemote.writeOutput(fHandle, buff, len);
            }
        }
        catch (Exception e)
        {
            throw new IOException("IO Error: " + e);
        }
    }

    /**
     * Write a buffer of data.
     * @param b The buffer.
     */
    @Override
    public void write(byte[] b) 
        throws IOException 
    {
        write(b, 0, b.length);
    }
}