/*
* Copyright (c) 2002-2012 Alibaba Group Holding Limited.
* All rights reserved.
*
* 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 com.alibaba.citrus.turbine.util;
import static com.alibaba.citrus.util.Assert.*;
import javax.servlet.http.HttpServletRequest;
import com.alibaba.citrus.service.requestcontext.RequestContext;
import com.alibaba.citrus.turbine.Context;
import com.alibaba.citrus.turbine.TurbineRunData;
import com.alibaba.citrus.turbine.TurbineRunDataInternal;
import com.alibaba.citrus.turbine.support.TurbineRunDataImpl;
public class TurbineUtil {
private final static String TURBINE_RUNDATA_KEY = "_webx3_turbine_rundata_";
private final static String TURBINE_RUNDATA_CONTEXT_KEY = "_webx3_turbine_rundata_context";
/** 从request中取得rundata，假如不存在，则创建之。 */
public static TurbineRunData getTurbineRunData(HttpServletRequest request) {
return getTurbineRunData(request, false);
}
public static TurbineRunData getTurbineRunData(HttpServletRequest request, boolean create) {
TurbineRunData rundata = (TurbineRunData) request.getAttribute(TURBINE_RUNDATA_KEY);
if (rundata == null && create) {
Context context = (Context) request.getAttribute(TURBINE_RUNDATA_CONTEXT_KEY);
rundata = new TurbineRunDataImpl(request, context);
request.setAttribute(TURBINE_RUNDATA_KEY, rundata);
}
return assertNotNull(rundata, "TurbineRunData not found in request attributes");
}
/** 从requestContext中取得rundata。 */
public static TurbineRunData getTurbineRunData(RequestContext requestContext) {
return getTurbineRunData(requestContext.getRequest());
}
public static void saveTurbineRunDataContext(TurbineRunData rundata) {
if (rundata instanceof TurbineRunDataInternal) {
rundata.getRequest().setAttribute(TURBINE_RUNDATA_CONTEXT_KEY,
((TurbineRunDataInternal) rundata).getContext());
}
}
/** 从request中清除turbine rundata。 */
public static void cleanupTurbineRunData(HttpServletRequest request, boolean clearContext) {
request.removeAttribute(TURBINE_RUNDATA_KEY);
if (clearContext) {
request.removeAttribute(TURBINE_RUNDATA_CONTEXT_KEY);
}
}
}