/*
* Copyright 2008-2009 the original 赵永春(zyc@hasor.net).
*
* 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 net.hasor.web.jstl.tagfun;
import net.hasor.core.AppContext;
import net.hasor.core.Provider;
import net.hasor.web.startup.RuntimeListener;
import org.more.util.StringUtils;
/**
*
* @version : 2013-12-24
* @author 赵永春(zyc@hasor.net)
*/
public class Functions {
protected static AppContext getAppContext() {
AppContext appContext = RuntimeListener.getLocalAppContext();
if (appContext != null) {
return appContext;
}
throw new NullPointerException("AppContext is undefined.");
}
//
public static Object defineBean(final String defineBean) {
if (StringUtils.isBlank(defineBean)) {
return null;
}
return Functions.getAppContext().getInstance(defineBean);
}
public static Object defineType(final String className) throws ClassNotFoundException {
Class<?> defineType = Class.forName(className);
return Functions.getAppContext().getInstance(defineType);
}
public static Object defineBind(final String name, final String bindingType) throws ClassNotFoundException {
if (StringUtils.isBlank(name)) {
return null;
}
if (StringUtils.isBlank(bindingType)) {
return null;
}
Class<?> defineType = Class.forName(bindingType);
//
Provider<?> provider = Functions.getAppContext().findBindingProvider(name, defineType);
if (provider != null) {
return provider.get();
}
return null;
}
public static boolean hasBean(final String defineBean) {
if (StringUtils.isBlank(defineBean)) {
return false;
}
return Functions.getAppContext().containsBindID(defineBean);
}
public static boolean hasBind(final String name, final String className) throws ClassNotFoundException {
if (StringUtils.isBlank(name)) {
return false;
}
Class<?> defineType = Class.forName(className);
//
Provider<?> provider = Functions.getAppContext().findBindingProvider(name, defineType);
return provider != null;
}
}