org.apache.sshd.common.util.io.LoggingFilterOutputStream Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.sshd.common.util.io;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.sshd.common.CommonModuleProperties;
import org.apache.sshd.common.PropertyResolver;
import org.apache.sshd.common.util.buffer.BufferUtils;
import org.apache.sshd.common.util.logging.LoggingUtils;
import org.apache.sshd.common.util.logging.SimplifiedLog;
import org.slf4j.Logger;
/**
* Dumps everything that is written to the stream to the logger
*
* @author Apache MINA SSHD Project
*/
public class LoggingFilterOutputStream extends FilterOutputStream {
private final String msg;
private final SimplifiedLog log;
private final int chunkSize;
private final AtomicInteger writeCount = new AtomicInteger(0);
public LoggingFilterOutputStream(OutputStream out, String msg, Logger log, PropertyResolver resolver) {
this(out, msg, log, CommonModuleProperties.HEXDUMP_CHUNK_SIZE.getRequired(resolver));
}
public LoggingFilterOutputStream(OutputStream out, String msg, Logger log, int chunkSize) {
super(out);
this.msg = msg;
this.log = LoggingUtils.wrap(log);
this.chunkSize = chunkSize;
}
@Override
public void write(int b) throws IOException {
byte[] d = new byte[1];
d[0] = (byte) b;
write(d, 0, 1);
}
@Override
public void write(byte[] b, int off, int len) throws IOException {
int count = writeCount.incrementAndGet();
BufferUtils.dumpHex(log, BufferUtils.DEFAULT_HEXDUMP_LEVEL, msg + "[" + count + "]", BufferUtils.DEFAULT_HEX_SEPARATOR,
chunkSize, b, off, len);
out.write(b, off, len);
}
}