001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.kernel.process;
016    
017    import com.liferay.portal.kernel.io.DummyOutputStream;
018    import com.liferay.portal.kernel.util.StreamUtil;
019    
020    import java.io.IOException;
021    import java.io.InputStream;
022    
023    /**
024     * @author Shuyang Zhou
025     */
026    public class ConsumerOutputProcessor implements OutputProcessor<Void, Void> {
027    
028            @Override
029            public Void processStdErr(InputStream stdErrInputStream)
030                    throws ProcessException {
031    
032                    _consume(stdErrInputStream);
033    
034                    return null;
035            }
036    
037            @Override
038            public Void processStdOut(InputStream stdOutInputStream)
039                    throws ProcessException {
040    
041                    _consume(stdOutInputStream);
042    
043                    return null;
044            }
045    
046            private void _consume(InputStream inputStream) throws ProcessException {
047                    try {
048                            StreamUtil.transfer(inputStream, new DummyOutputStream());
049                    }
050                    catch (IOException ioe) {
051                            throw new ProcessException(ioe);
052                    }
053            }
054    
055    }