/*
* 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.sling.engine.impl.debug;
import java.io.IOException;
import java.util.Iterator;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Properties;
import org.apache.felix.scr.annotations.Property;
import org.apache.felix.scr.annotations.Service;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.request.RequestProgressTracker;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Filter that dumps the output of the RequestProgressTracker to the log after
* processing the request.
*
*/
@Component
@Service
@Properties({
@Property(name="service.description", value="RequestProgressTracker dump filter"),
@Property(name="service.vendor", value="The Apache Software Foundation"),
@Property(name="filter.scope", value="request")
})
public class RequestProgressTrackerLogFilter implements Filter {
private static final Logger log = LoggerFactory.getLogger(RequestProgressTrackerLogFilter.class);
private int requestCounter;
public void init(FilterConfig filterConfig) throws ServletException {
}
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
chain.doFilter(request, response);
if (request instanceof SlingHttpServletRequest) {
final RequestProgressTracker t = ((SlingHttpServletRequest) request).getRequestProgressTracker();
t.done();
if (log.isDebugEnabled()) {
int requestId = 0;
synchronized (getClass()) {
requestId = ++requestCounter;
}
final Iterator<String> it = t.getMessages();
while (it.hasNext()) {
log.debug("REQUEST_{} - " + it.next(), requestId);
}
}
}
}
public void destroy() {
}
}