org.jasig.portal.utils.SwitchableForwardingOutputStream.java Source code

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Here is the source code for org.jasig.portal.utils.SwitchableForwardingOutputStream.java

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/**
 * Licensed to Jasig under one or more contributor license
 * agreements. See the NOTICE file distributed with this work
 * for additional information regarding copyright ownership.
 * Jasig 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.
 */
package org.jasig.portal.utils;

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

import org.apache.commons.lang.Validate;

/**
 * Delegates to another {@link OutputStream} which can be modified
 * at any time by calling {@link #setOutputStream(OutputStream)}
 * 
 * @author Eric Dalquist
 */
public class SwitchableForwardingOutputStream extends OutputStream {
    private OutputStream outputStream;

    public SwitchableForwardingOutputStream(OutputStream outputStream) {
        Validate.notNull(outputStream);
        this.outputStream = outputStream;
    }

    public OutputStream getOutputStream() {
        return outputStream;
    }

    public void setOutputStream(OutputStream outputStream) {
        Validate.notNull(outputStream);
        this.outputStream = outputStream;
    }

    public void write(int b) throws IOException {
        outputStream.write(b);
    }

    public int hashCode() {
        return outputStream.hashCode();
    }

    public void write(byte[] b) throws IOException {
        outputStream.write(b);
    }

    public void write(byte[] b, int off, int len) throws IOException {
        outputStream.write(b, off, len);
    }

    public boolean equals(Object obj) {
        return outputStream.equals(obj);
    }

    public void flush() throws IOException {
        outputStream.flush();
    }

    public void close() throws IOException {
        outputStream.close();
    }

    public String toString() {
        return outputStream.toString();
    }
}