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+/**
+ * \cond LICENSE
+ * Arara -- the cool TeX automation tool
+ * Copyright (c) 2012, 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.
+ * \endcond
+ *
+ * TeeOutputStream: This class implements an output stream that handles other
+ * streams, so the flow is propagated to all of them in an easy way.
+ */
+// package definition
+package com.github.arara.utils;
+
+// needed importa
+import java.io.IOException;
+import java.io.OutputStream;
+
+/**
+ * Implements an output stream that handles other streams, so the flow is
+ * propagated to all of them in an easy way.
+ *
+ * @author Paulo Roberto Massa Cereda
+ * @version 3.0
+ * @since 2.0
+ */
+public class TeeOutputStream extends OutputStream {
+
+ // the list of the output streams
+ private final OutputStream[] streams;
+
+ /**
+ * Constructor.
+ *
+ * @param outputStreams An array containing the output streams.
+ */
+ public TeeOutputStream(OutputStream... outputStreams) {
+
+ // set the array
+ streams = outputStreams;
+ }
+
+ /**
+ * Writes the byte to all the output streams.
+ *
+ * @param b The byte to write.
+ * @throws IOException Exception if an error ocurred.
+ */
+ @Override
+ public void write(int b) throws IOException {
+
+ // for every stream
+ for (OutputStream ostream : streams) {
+
+ // write the byte
+ ostream.write(b);
+ }
+ }
+
+ /**
+ * Writes an array of bytes to all the output streams.
+ *
+ * @param b The bytes to write.
+ * @param offset The offset.
+ * @param length Number of bytes.
+ * @throws IOException Exception if an error ocurred.
+ */
+ @Override
+ public void write(byte[] b, int offset, int length) throws IOException {
+
+ // for every stream
+ for (OutputStream ostream : streams) {
+
+ // write the array
+ ostream.write(b, offset, length);
+ }
+ }
+
+ /**
+ * Flushes the stream.
+ *
+ * @throws IOException Exception if an error ocurred.
+ */
+ @Override
+ public void flush() throws IOException {
+
+ // for every stream
+ for (OutputStream ostream : streams) {
+
+ // flush the stream
+ ostream.flush();
+ }
+ }
+
+ /**
+ * Closes the stream.
+ *
+ * @throws IOException Exception if an error ocurred.
+ */
+ @Override
+ public void close() throws IOException {
+
+ // for every stream
+ for (OutputStream ostream : streams) {
+
+ // try to close the stream
+ forceClose(ostream);
+ }
+ }
+
+ /**
+ * Forces the stream to close without raising exceptions.
+ *
+ * @param ostream The stream.
+ */
+ private void forceClose(OutputStream ostream) {
+
+ // try to close
+ try {
+
+ // close it
+ ostream.close();
+
+ } catch (IOException exception) {
+ // do nothing
+ }
+ }
+} \ No newline at end of file