/*
* Copyright 2010 LinkedIn, Inc
*
* 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 azkaban.web;
import azkaban.app.AzkabanApplication;
import javax.servlet.ServletConfig;
import javax.servlet.http.HttpServletRequest;
/**
* Web utilities
*
* @author jkreps
*
*/
public class WebUtils {
/**
* Get the AzkabanApplication from the ServletConfig
*
* @param config The ServletConfig
* @return The app
*/
public static AzkabanApplication getApp(ServletConfig config) {
AzkabanApplication app = (AzkabanApplication) config.getServletContext()
.getAttribute(AzkabanServletContextListener.AZKABAN_SERVLET_CONTEXT_KEY);
if(app == null)
throw new IllegalStateException("No batch application is defined in the servlet context!");
else
return app;
}
public static int getInt(HttpServletRequest req, String name, int defaultValue) {
String value = req.getParameter(name);
if(value == null)
return defaultValue;
else
return Integer.parseInt(value);
}
}