| /* |
| * 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. |
| */ |
| /* Generated By:JJTree: Do not edit this line. AstFunction.java */ |
| |
| package org.apache.el.parser; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| |
| import javax.el.ELException; |
| import javax.el.FunctionMapper; |
| |
| import org.apache.el.lang.EvaluationContext; |
| import org.apache.el.util.MessageFactory; |
| |
| |
| /** |
| * @author Jacob Hookom [jacob@hookom.net] |
| * @version $Id: AstFunction.java,v 1.1 2011/06/28 21:14:11 rherrmann Exp $ |
| */ |
| public final class AstFunction extends SimpleNode { |
| |
| protected String localName = ""; |
| |
| protected String prefix = ""; |
| |
| public AstFunction(int id) { |
| super(id); |
| } |
| |
| public String getLocalName() { |
| return localName; |
| } |
| |
| public String getOutputName() { |
| if (this.prefix == null) { |
| return this.localName; |
| } else { |
| return this.prefix + ":" + this.localName; |
| } |
| } |
| |
| public String getPrefix() { |
| return prefix; |
| } |
| |
| @Override |
| public Class<?> getType(EvaluationContext ctx) |
| throws ELException { |
| |
| FunctionMapper fnMapper = ctx.getFunctionMapper(); |
| |
| // quickly validate again for this request |
| if (fnMapper == null) { |
| throw new ELException(MessageFactory.get("error.fnMapper.null")); |
| } |
| Method m = fnMapper.resolveFunction(this.prefix, this.localName); |
| if (m == null) { |
| throw new ELException(MessageFactory.get("error.fnMapper.method", |
| this.getOutputName())); |
| } |
| return m.getReturnType(); |
| } |
| |
| @Override |
| public Object getValue(EvaluationContext ctx) |
| throws ELException { |
| |
| FunctionMapper fnMapper = ctx.getFunctionMapper(); |
| |
| // quickly validate again for this request |
| if (fnMapper == null) { |
| throw new ELException(MessageFactory.get("error.fnMapper.null")); |
| } |
| Method m = fnMapper.resolveFunction(this.prefix, this.localName); |
| if (m == null) { |
| throw new ELException(MessageFactory.get("error.fnMapper.method", |
| this.getOutputName())); |
| } |
| |
| Class<?>[] paramTypes = m.getParameterTypes(); |
| Object[] params = null; |
| Object result = null; |
| int numParams = this.jjtGetNumChildren(); |
| if (numParams > 0) { |
| params = new Object[numParams]; |
| try { |
| for (int i = 0; i < numParams; i++) { |
| params[i] = this.children[i].getValue(ctx); |
| params[i] = coerceToType(params[i], paramTypes[i]); |
| } |
| } catch (ELException ele) { |
| throw new ELException(MessageFactory.get("error.function", this |
| .getOutputName()), ele); |
| } |
| } |
| try { |
| result = m.invoke(null, params); |
| } catch (IllegalAccessException iae) { |
| throw new ELException(MessageFactory.get("error.function", this |
| .getOutputName()), iae); |
| } catch (InvocationTargetException ite) { |
| throw new ELException(MessageFactory.get("error.function", this |
| .getOutputName()), ite.getCause()); |
| } |
| return result; |
| } |
| |
| public void setLocalName(String localName) { |
| this.localName = localName; |
| } |
| |
| public void setPrefix(String prefix) { |
| this.prefix = prefix; |
| } |
| |
| |
| @Override |
| public String toString() |
| { |
| return ELParserTreeConstants.jjtNodeName[id] + "[" + this.getOutputName() + "]"; |
| } |
| } |