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HttpComponents Client (base module)
/*
* ====================================================================
*
* 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* .
*
*/
package org.apache.http.impl.conn;
import java.io.IOException;
import java.io.InputStream;
import java.io.ByteArrayInputStream;
import org.apache.http.annotation.Immutable;
import org.apache.commons.logging.Log;
/**
* Logs data to the wire LOG.
*
*
* @since 4.0
*/
@Immutable
public class Wire {
private final Log log;
public Wire(Log log) {
this.log = log;
}
private void wire(String header, InputStream instream)
throws IOException {
StringBuilder buffer = new StringBuilder();
int ch;
while ((ch = instream.read()) != -1) {
if (ch == 13) {
buffer.append("[\\r]");
} else if (ch == 10) {
buffer.append("[\\n]\"");
buffer.insert(0, "\"");
buffer.insert(0, header);
log.debug(buffer.toString());
buffer.setLength(0);
} else if ((ch < 32) || (ch > 127)) {
buffer.append("[0x");
buffer.append(Integer.toHexString(ch));
buffer.append("]");
} else {
buffer.append((char) ch);
}
}
if (buffer.length() > 0) {
buffer.append('\"');
buffer.insert(0, '\"');
buffer.insert(0, header);
log.debug(buffer.toString());
}
}
public boolean enabled() {
return log.isDebugEnabled();
}
public void output(InputStream outstream)
throws IOException {
if (outstream == null) {
throw new IllegalArgumentException("Output may not be null");
}
wire(">> ", outstream);
}
public void input(InputStream instream)
throws IOException {
if (instream == null) {
throw new IllegalArgumentException("Input may not be null");
}
wire("<< ", instream);
}
public void output(byte[] b, int off, int len)
throws IOException {
if (b == null) {
throw new IllegalArgumentException("Output may not be null");
}
wire(">> ", new ByteArrayInputStream(b, off, len));
}
public void input(byte[] b, int off, int len)
throws IOException {
if (b == null) {
throw new IllegalArgumentException("Input may not be null");
}
wire("<< ", new ByteArrayInputStream(b, off, len));
}
public void output(byte[] b)
throws IOException {
if (b == null) {
throw new IllegalArgumentException("Output may not be null");
}
wire(">> ", new ByteArrayInputStream(b));
}
public void input(byte[] b)
throws IOException {
if (b == null) {
throw new IllegalArgumentException("Input may not be null");
}
wire("<< ", new ByteArrayInputStream(b));
}
public void output(int b)
throws IOException {
output(new byte[] {(byte) b});
}
public void input(int b)
throws IOException {
input(new byte[] {(byte) b});
}
/**
* @deprecated (4.1) do not use
*/
@Deprecated
public void output(final String s)
throws IOException {
if (s == null) {
throw new IllegalArgumentException("Output may not be null");
}
output(s.getBytes());
}
/**
* @deprecated (4.1) do not use
*/
@Deprecated
public void input(final String s)
throws IOException {
if (s == null) {
throw new IllegalArgumentException("Input may not be null");
}
input(s.getBytes());
}
}