/* | |
* Licensed to the Apache Software Foundation (ASF) under one or more | |
* contributor license agreements. See the NOTICE file distributed with | |
* this work for additional information regarding copyright ownership. | |
* The ASF licenses this file to You 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 org.apache.struts2.jasper.tagplugins.jstl.core; | |
import org.apache.struts2.jasper.compiler.tagplugin.TagPlugin; | |
import org.apache.struts2.jasper.compiler.tagplugin.TagPluginContext; | |
public final class If implements TagPlugin { | |
public void doTag(TagPluginContext ctxt) { | |
String condV = ctxt.getTemporaryVariableName(); | |
ctxt.generateJavaSource("boolean " + condV + "="); | |
ctxt.generateAttribute("test"); | |
ctxt.generateJavaSource(";"); | |
if (ctxt.isAttributeSpecified("var")) { | |
String scope = "PageContext.PAGE_SCOPE"; | |
if (ctxt.isAttributeSpecified("scope")) { | |
String scopeStr = ctxt.getConstantAttribute("scope"); | |
if ("request".equals(scopeStr)) { | |
scope = "PageContext.REQUEST_SCOPE"; | |
} else if ("session".equals(scopeStr)) { | |
scope = "PageContext.SESSION_SCOPE"; | |
} else if ("application".equals(scopeStr)) { | |
scope = "PageContext.APPLICATION_SCOPE"; | |
} | |
} | |
ctxt.generateJavaSource("_jspx_page_context.setAttribute("); | |
ctxt.generateAttribute("var"); | |
ctxt.generateJavaSource(", new Boolean(" + condV + ")," + scope + ");"); | |
} | |
ctxt.generateJavaSource("if (" + condV + "){"); | |
ctxt.generateBody(); | |
ctxt.generateJavaSource("}"); | |
} | |
} |