psiprobe.controllers.threads.GetClassLoaderUrlsController.java Source code

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Here is the source code for psiprobe.controllers.threads.GetClassLoaderUrlsController.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.threads;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.ServletRequestUtils;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.ParameterizableViewController;

import psiprobe.Utils;

import java.net.URLClassLoader;
import java.util.Arrays;

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

/**
 * The Class GetClassLoaderUrlsController.
 *
 * @author Vlad Ilyushchenko
 */
public class GetClassLoaderUrlsController extends ParameterizableViewController {

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

    @Override
    protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response)
            throws Exception {

        String threadName = ServletRequestUtils.getStringParameter(request, "thread", null);

        Thread thread = Utils.getThreadByName(threadName);

        if (thread != null) {
            ClassLoader cl = thread.getContextClassLoader();
            if (cl != null && cl instanceof URLClassLoader) {
                try {
                    request.setAttribute("urls", Arrays.asList(((URLClassLoader) cl).getURLs()));
                } catch (Exception e) {
                    logger.error("There was an exception querying classloader for thread '{}'", threadName, e);
                }
            }
        }

        return new ModelAndView(getViewName());
    }

}