org.apache.nutch.tools.proxy.LogDebugHandler.java Source code

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Here is the source code for org.apache.nutch.tools.proxy.LogDebugHandler.java

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package org.apache.nutch.tools.proxy;
/*
 * 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.
 */

import java.io.IOException;

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 javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.mortbay.jetty.Request;

public class LogDebugHandler extends AbstractTestbedHandler implements Filter {
    private static final Log LOG = LogFactory.getLog(LogDebugHandler.class);

    @Override
    public void handle(Request req, HttpServletResponse res, String target, int dispatch)
            throws IOException, ServletException {
        LOG.info("-- " + req.getMethod() + " " + req.getUri().toString() + "\n"
                + req.getConnection().getRequestFields());
    }

    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
            throws IOException, ServletException {
        ((HttpServletResponse) res).addHeader("X-Handled-By", "AsyncProxyHandler");
        ((HttpServletResponse) res).addHeader("X-TestbedHandlers", "AsyncProxyHandler");
        try {
            chain.doFilter(req, res);
        } catch (Throwable e) {
            ((HttpServletResponse) res).sendError(HttpServletResponse.SC_BAD_REQUEST, e.toString());
        }
    }

    @Override
    public void init(FilterConfig arg0) throws ServletException {
        // TODO Auto-generated method stub

    }
}