diff options
Diffstat (limited to 'support/arara/source/src/main/java/com/github/cereda/arara/utils/TeeOutputStream.java')
-rw-r--r-- | support/arara/source/src/main/java/com/github/cereda/arara/utils/TeeOutputStream.java | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/support/arara/source/src/main/java/com/github/cereda/arara/utils/TeeOutputStream.java b/support/arara/source/src/main/java/com/github/cereda/arara/utils/TeeOutputStream.java new file mode 100644 index 0000000000..65d3d58ffb --- /dev/null +++ b/support/arara/source/src/main/java/com/github/cereda/arara/utils/TeeOutputStream.java @@ -0,0 +1,109 @@ +/** + * Arara, the cool TeX automation tool + * Copyright (c) 2012 -- 2018, Paulo Roberto Massa Cereda + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the project's author nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY + * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +package com.github.cereda.arara.utils; + +import java.io.IOException; +import java.io.OutputStream; +import org.apache.commons.io.IOUtils; + +/** + * Implements a stream splitter. + * @author Paulo Roberto Massa Cereda + * @version 4.0 + * @since 4.0 + */ +public class TeeOutputStream extends OutputStream { + + // an array of streams in which + // an object of this class will + // split data + private final OutputStream[] streams; + + /** + * Constructor. + * @param outputStreams An array of output streams. + */ + public TeeOutputStream(OutputStream... outputStreams) { + streams = outputStreams; + } + + /** + * Writes the provided integer to each stream. + * @param b The provided integer + * @throws IOException An IO exception. + */ + @Override + public void write(int b) throws IOException { + for (OutputStream ostream : streams) { + ostream.write(b); + } + } + + /** + * Writes the provided byte array to each stream, with the provided offset + * and length. + * @param b The byte array. + * @param offset The offset. + * @param length The length. + * @throws IOException An IO exception. + */ + @Override + public void write(byte[] b, int offset, int length) throws IOException { + for (OutputStream ostream : streams) { + ostream.write(b, offset, length); + } + } + + /** + * Flushes every stream. + * @throws IOException An IO exception. + */ + @Override + public void flush() throws IOException { + for (OutputStream ostream : streams) { + ostream.flush(); + } + } + + /** + * Closes every stream silently. + */ + @Override + public void close() { + for (OutputStream ostream : streams) { + IOUtils.closeQuietly(ostream); + } + } + +} |