net.community.chest.gitcloud.facade.backend.git.GitBackendServlet.java Source code

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Here is the source code for net.community.chest.gitcloud.facade.backend.git.GitBackendServlet.java

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/* Copyright 2013 Lyor Goldstein
 *
 * Licensed 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 net.community.chest.gitcloud.facade.backend.git;

import java.io.IOException;
import java.util.Map;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.community.chest.gitcloud.facade.ServletUtils;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eclipse.jgit.http.server.GitServlet;
import org.eclipse.jgit.transport.resolver.ReceivePackFactory;
import org.eclipse.jgit.transport.resolver.RepositoryResolver;
import org.eclipse.jgit.transport.resolver.UploadPackFactory;

/**
 * @author Lyor Goldstein
 * @since Sep 12, 2013 9:02:43 AM
 */
public class GitBackendServlet extends GitServlet {
    private static final long serialVersionUID = 1369124756755785887L;
    protected final Log logger;

    public GitBackendServlet() {
        logger = LogFactory.getLog(getClass());
    }

    @Override
    public void init(ServletConfig config) throws ServletException {
        RepositoryResolver<HttpServletRequest> resolver = BackendRepositoryResolver.getInstance();
        if (resolver == null) {
            throw new ServletException("Repository resolver N/A");
        }

        UploadPackFactory<HttpServletRequest> uploadFactory = BackendUploadPackFactory.getInstance();
        if (uploadFactory == null) {
            throw new ServletException("Backend upload factory N/A");
        }

        ReceivePackFactory<HttpServletRequest> receiveFactory = BackendReceivePackFactory.getInstance();
        if (receiveFactory == null) {
            throw new ServletException("Backend receive factory N/A");
        }

        setRepositoryResolver(resolver);
        setReceivePackFactory(receiveFactory);
        setUploadPackFactory(uploadFactory);
        super.init(config);
    }

    @Override
    protected void service(HttpServletRequest req, HttpServletResponse rsp) throws ServletException, IOException {
        if (logger.isDebugEnabled()) {
            logger.debug(
                    "service(" + req.getMethod() + ")[" + req.getRequestURI() + "][" + req.getQueryString() + "]");
        }

        if (logger.isTraceEnabled()) {
            logHeaders(req, ServletUtils.getRequestHeaders(req), "REQ");
        }

        super.service(req, rsp);

        if (logger.isDebugEnabled()) {
            logger.debug("service(" + req.getMethod() + ")[" + req.getRequestURI() + "][" + req.getQueryString()
                    + "]" + " Content-Type: " + rsp.getContentType() + ", status=" + rsp.getStatus());
        }

        if (logger.isTraceEnabled()) {
            logHeaders(req, ServletUtils.getResponseHeaders(rsp), "RSP");
        }
    }

    private void logHeaders(HttpServletRequest req, Map<String, String> hdrsMap, String hdrsType) {
        for (Map.Entry<String, String> hdrEntry : hdrsMap.entrySet()) {
            String hdrName = hdrEntry.getKey(), hdrValue = hdrEntry.getValue();
            logger.trace("service(" + req.getMethod() + ")[" + req.getRequestURI() + "][" + req.getQueryString()
                    + "]" + " " + hdrsType + " " + hdrName + ": " + hdrValue);
        }
    }
}