com.googlecode.psiprobe.controllers.apps.DownloadXMLConfController.java Source code

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Here is the source code for com.googlecode.psiprobe.controllers.apps.DownloadXMLConfController.java

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/*
 * Licensed under the GPL License.  You may not use this file except in
 * compliance with the License.  You may obtain a copy of the License at
 *
 *     http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 *
 * THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */
package com.googlecode.psiprobe.controllers.apps;

import com.googlecode.psiprobe.Utils;
import com.googlecode.psiprobe.controllers.ContextHandlerController;
import java.io.File;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.catalina.Context;
import org.springframework.web.servlet.ModelAndView;

/**
 * Downloads a deployment descriptor (web.xml) or a context descriptor
 * (context.xml) of a web application
 * 
 * @author Andy Shapoval
 */
public class DownloadXMLConfController extends ContextHandlerController {
    public static final String TARGET_WEB_XML = "web.xml";
    public static final String TARGET_CONTEXT_XML = "context.xml";

    /**
     * Type of a configuration file to be downloaded
     */
    private String downloadTarget;

    public String getDownloadTarget() {
        return downloadTarget;
    }

    public void setDownloadTarget(String downloadTarget) {
        this.downloadTarget = downloadTarget;
    }

    protected ModelAndView handleContext(String contextName, Context context, HttpServletRequest request,
            HttpServletResponse response) throws Exception {
        if (downloadTarget == null) {
            throw new RuntimeException("Download target is not set for " + getClass().getName());
        }

        String xmlPath;

        if (TARGET_WEB_XML.equals(downloadTarget)) {
            ServletContext sctx = context.getServletContext();
            xmlPath = sctx.getRealPath("/WEB-INF/web.xml");
        } else if (TARGET_CONTEXT_XML.equals(downloadTarget)) {
            xmlPath = context.getConfigFile();
        } else {
            throw new RuntimeException("Unknown download target " + getDownloadTarget());
        }

        if (xmlPath != null) {
            File xmlFile = new File(xmlPath);
            if (xmlFile.exists()) {
                Utils.sendFile(request, response, xmlFile);
            } else {
                logger.debug("File " + xmlPath + " of " + contextName + " application does not exists.");
            }
        } else {
            logger.debug("Cannot determine path to " + getDownloadTarget() + " file of " + contextName
                    + " application.");
        }

        return null;
    }
}