org.openmrs.module.logmanager.web.controller.AppenderListController.java Source code

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Here is the source code for org.openmrs.module.logmanager.web.controller.AppenderListController.java

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/**
 * The contents of this file are subject to the OpenMRS Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://license.openmrs.org
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * Copyright (C) OpenMRS, LLC.  All Rights Reserved.
 */
package org.openmrs.module.logmanager.web.controller;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

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

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.openmrs.api.context.Context;
import org.openmrs.module.logmanager.Constants;
import org.openmrs.module.logmanager.LogManagerService;
import org.openmrs.module.logmanager.impl.AppenderProxy;
import org.openmrs.module.logmanager.util.LogManagerUtils;
import org.openmrs.module.logmanager.web.util.ContextProvider;
import org.openmrs.module.logmanager.web.util.WebUtils;
import org.springframework.web.bind.ServletRequestUtils;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.ParameterizableViewController;

/**
 * Abstract base class for statistical query controllers
 */
public class AppenderListController extends ParameterizableViewController {

    protected static final Log log = LogFactory.getLog(AppenderListController.class);

    /* (non-Javadoc)
     * @see org.springframework.web.servlet.mvc.ParameterizableViewController#handleRequestInternal(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
     */
    @Override
    protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        LogManagerService svc = Context.getService(LogManagerService.class);

        // Delete appender if specified
        int deleteId = ServletRequestUtils.getIntParameter(request, "deleteId", 0);
        if (deleteId != 0)
            deleteAppender(deleteId, request);

        // Clear appender if specified
        int clearId = ServletRequestUtils.getIntParameter(request, "clearId", 0);
        if (clearId != 0)
            clearAppender(clearId, request);

        Map<String, Object> model = new HashMap<String, Object>();

        // Get sorted list of existing appenders
        Collection<AppenderProxy> appenders = svc.getAppenders(true);

        model.put("appenders", appenders);
        model.put("isWindows", LogManagerUtils.isWindowsServer());

        return new ModelAndView(getViewName(), model);
    }

    /**
     * Deletes the specified appender
     * @param appenderId the id of the appender
     * @param request the http request
     */
    private void deleteAppender(int appenderId, HttpServletRequest request) {
        LogManagerService svc = Context.getService(LogManagerService.class);

        // Find appender and delete it
        AppenderProxy appender = svc.getAppender(appenderId);
        if (appender != null) {
            svc.deleteAppender(appender);

            String name = appender.getName();
            if (name == null || name.isEmpty())
                name = ContextProvider.getMessage(Constants.MODULE_ID + ".anonymous");
            WebUtils.setInfoMessage(request, Constants.MODULE_ID + ".appenders.deleteSuccess",
                    new Object[] { name });
        }
    }

    /**
     * Clears the specified appender
     * @param appenderId the appender id
     * @param request the http request
     */
    private void clearAppender(int appenderId, HttpServletRequest request) {
        LogManagerService svc = Context.getService(LogManagerService.class);

        // Find appender and clear it
        AppenderProxy appender = svc.getAppender(appenderId);
        if (appender.isClearable())
            appender.clear();

        String name = appender.getName();
        if (name == null || name.isEmpty())
            name = ContextProvider.getMessage(Constants.MODULE_ID + ".anonymous");
        WebUtils.setInfoMessage(request, Constants.MODULE_ID + ".appenders.clearSuccess", new Object[] { name });
    }
}