psiprobe.controllers.apps.DownloadXmlConfController.java Source code

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Here is the source code for 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 psiprobe.controllers.apps;

import org.apache.catalina.Context;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.servlet.ModelAndView;

import psiprobe.Utils;
import psiprobe.controllers.ContextHandlerController;

import java.io.File;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Downloads a deployment descriptor (web.xml) or a context descriptor (context.xml) of a web
 * application
 * 
 * @author Andy Shapoval
 */
public class DownloadXmlConfController extends ContextHandlerController {

    /** The Constant logger. */
    private static final Logger logger = LoggerFactory.getLogger(DownloadXmlConfController.class);

    /** The Constant TARGET_WEB_XML. */
    private static final String TARGET_WEB_XML = "web.xml";

    /** The Constant TARGET_CONTEXT_XML. */
    private static final String TARGET_CONTEXT_XML = "context.xml";

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

    /**
     * Gets the download target.
     *
     * @return the download target
     */
    public String getDownloadTarget() {
        return downloadTarget;
    }

    /**
     * Sets the download target.
     *
     * @param downloadTarget the new download target
     */
    public void setDownloadTarget(String downloadTarget) {
        this.downloadTarget = downloadTarget;
    }

    @Override
    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 = this.getContainerWrapper().getTomcatContainer().getConfigFile(context).getPath();
        } 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 {} of {} application does not exists.", xmlPath, contextName);
            }
        } else {
            logger.debug("Cannot determine path to {} file of {} application.", getDownloadTarget(), contextName);
        }
        return null;
    }

}