/*
* 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.synapse.transport.http.conn;
import java.io.IOException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.http.ConnectionClosedException;
import org.apache.http.HttpException;
import org.apache.http.HttpRequest;
import org.apache.http.nio.ContentDecoder;
import org.apache.http.nio.ContentEncoder;
import org.apache.http.nio.NHttpServerConnection;
import org.apache.http.nio.NHttpServerEventHandler;
/**
* Decorator class intended to transparently extend an {@link NHttpServerEventHandler}
* with basic event logging capabilities using Commons Logging.
*/
class LoggingNHttpServiceHandler implements NHttpServerEventHandler {
private final Log log;
private final NHttpServerEventHandler handler;
public LoggingNHttpServiceHandler(
final Log log,
final NHttpServerEventHandler handler) {
super();
if (handler == null) {
throw new IllegalArgumentException("HTTP service handler may not be null");
}
this.handler = handler;
this.log = LogFactory.getLog(handler.getClass());
}
public void connected(
final NHttpServerConnection conn) throws IOException, HttpException {
if (this.log.isDebugEnabled()) {
this.log.debug(conn + ": Connected");
}
this.handler.connected(conn);
}
public void closed(final NHttpServerConnection conn) {
if (this.log.isDebugEnabled()) {
this.log.debug(conn + ": Closed");
}
this.handler.closed(conn);
}
public void exception(final NHttpServerConnection conn, final Exception ex) {
String msg = ex.getMessage();
if (msg == null) {
msg = "";
}
if (ex instanceof ConnectionClosedException ||
ex.getMessage().contains("Connection reset by peer") ||
ex.getMessage().contains("forcibly closed")) {
if (this.log.isDebugEnabled()) {
this.log.debug(conn + ": " + ex.getMessage() +
" (Probably the keepalive connection was closed)");
}
} else {
this.log.error(conn + ": " + msg, ex);
}
this.handler.exception(conn, ex);
}
public void requestReceived(
final NHttpServerConnection conn) throws IOException, HttpException {
HttpRequest request = conn.getHttpRequest();
if (this.log.isDebugEnabled()) {
this.log.debug(conn + ": " + request.getRequestLine());
}
this.handler.requestReceived(conn);
}
public void outputReady(
final NHttpServerConnection conn,
final ContentEncoder encoder) throws IOException, HttpException {
if (this.log.isDebugEnabled()) {
this.log.debug(conn + ": Output ready");
}
this.handler.outputReady(conn, encoder);
if (this.log.isDebugEnabled()) {
this.log.debug(conn + ": Content encoder " + encoder);
}
}
public void responseReady(
final NHttpServerConnection conn) throws IOException, HttpException {
if (this.log.isDebugEnabled()) {
this.log.debug(conn + ": Response ready");
}
this.handler.responseReady(conn);
}
public void inputReady(
final NHttpServerConnection conn,
final ContentDecoder decoder) throws IOException, HttpException {
if (this.log.isDebugEnabled()) {
this.log.debug(conn + ": Input ready");
}
this.handler.inputReady(conn, decoder);
if (this.log.isDebugEnabled()) {
this.log.debug(conn + ": Content decoder " + decoder);
}
}
public void timeout(
final NHttpServerConnection conn) throws IOException {
if (this.log.isDebugEnabled()) {
this.log.debug(conn + ": Timeout");
}
this.handler.timeout(conn);
}
public void endOfInput(
final NHttpServerConnection conn) throws IOException {
if (this.log.isDebugEnabled()) {
this.log.debug(conn + ": End of input");
}
this.handler.endOfInput(conn);
}
}