| /* |
| * Copyright (C) 2009-2010, Google Inc. |
| * and other copyright owners as documented in the project's IP log. |
| * |
| * This program and the accompanying materials are made available |
| * under the terms of the Eclipse Distribution License v1.0 which |
| * accompanies this distribution, is reproduced below, and is |
| * available at http://www.eclipse.org/org/documents/edl-v10.php |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - 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. |
| * |
| * - Neither the name of the Eclipse Foundation, Inc. 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 OWNER 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 org.eclipse.jgit.util.io; |
| |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.io.OutputStreamWriter; |
| import java.io.Writer; |
| |
| import org.eclipse.jgit.util.RawParseUtils; |
| |
| /** |
| * Combines messages from an OutputStream (hopefully in UTF-8) and a Writer. |
| * <p> |
| * This class is primarily meant for {@code BaseConnection} in contexts where a |
| * standard error stream from a command execution, as well as messages from a |
| * side-band channel, need to be combined together into a buffer to represent |
| * the complete set of messages from a remote repository. |
| * <p> |
| * Writes made to the writer are re-encoded as UTF-8 and interleaved into the |
| * buffer that {@link #getRawStream()} also writes to. |
| * <p> |
| * {@link #toString()} returns all written data, after converting it to a String |
| * under the assumption of UTF-8 encoding. |
| * <p> |
| * Internally {@link org.eclipse.jgit.util.RawParseUtils#decode(byte[])} is used |
| * by {@code toString()} tries to work out a reasonably correct character set |
| * for the raw data. |
| */ |
| public class MessageWriter extends Writer { |
| private final ByteArrayOutputStream buf; |
| |
| private final OutputStreamWriter enc; |
| |
| /** |
| * Create an empty writer. |
| */ |
| public MessageWriter() { |
| buf = new ByteArrayOutputStream(); |
| enc = new OutputStreamWriter(getRawStream(), UTF_8); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void write(char[] cbuf, int off, int len) throws IOException { |
| synchronized (buf) { |
| enc.write(cbuf, off, len); |
| enc.flush(); |
| } |
| } |
| |
| /** |
| * Get the underlying byte stream that character writes to this writer drop |
| * into. |
| * |
| * @return the underlying byte stream that character writes to this writer |
| * drop into. Writes to this stream should should be in UTF-8. |
| */ |
| public OutputStream getRawStream() { |
| return buf; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void close() throws IOException { |
| // Do nothing, we are buffered with no resources. |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void flush() throws IOException { |
| // Do nothing, we are buffered with no resources. |
| } |
| |
| /** @return string version of all buffered data. */ |
| /** {@inheritDoc} */ |
| @Override |
| public String toString() { |
| return RawParseUtils.decode(buf.toByteArray()); |
| } |
| } |