com.adobe.acs.commons.httpcache.engine.impl.TeeServletOutputStream.java Source code

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/*
 * #%L
 * ACS AEM Commons Bundle
 * %%
 * Copyright (C) 2015 Adobe
 * %%
 * 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.
 * #L%
 */
package com.adobe.acs.commons.httpcache.engine.impl;

import org.apache.commons.io.output.TeeOutputStream;

import javax.servlet.ServletOutputStream;
import java.io.IOException;
import java.io.OutputStream;

/**
 * Writes to 2 outputstream. Required to take copy of the servlet response.
 */
public class TeeServletOutputStream extends ServletOutputStream {
    private final TeeOutputStream teeOutputStream;

    public TeeServletOutputStream(OutputStream one, OutputStream two) {
        // Uses Apache IO TeeOutputStream
        teeOutputStream = new TeeOutputStream(one, two);
    }

    @Override
    public void write(int character) throws IOException {
        this.teeOutputStream.write(character);
    }

    @Override
    public void write(byte[] oneByte, int off, int len) throws IOException {
        this.teeOutputStream.write(oneByte, off, len);
    }

    @Override
    public void write(byte[] oneByte) throws IOException {
        this.teeOutputStream.write(oneByte);
    }

    @Override
    public void flush() throws IOException {
        this.teeOutputStream.flush();
    }

    @Override
    public void close() throws IOException {
        this.teeOutputStream.close();
    }
}