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Tomcat example source code file (ExpressionEvaluatorImpl.java)
The Tomcat ExpressionEvaluatorImpl.java source code/* * 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.jasper.el; import javax.el.ELContext; import javax.el.ExpressionFactory; import javax.el.ValueExpression; import javax.servlet.jsp.el.ELException; import javax.servlet.jsp.el.ELParseException; import javax.servlet.jsp.el.Expression; import javax.servlet.jsp.el.ExpressionEvaluator; import javax.servlet.jsp.el.FunctionMapper; import javax.servlet.jsp.el.VariableResolver; public final class ExpressionEvaluatorImpl extends ExpressionEvaluator { private final ExpressionFactory factory; public ExpressionEvaluatorImpl(ExpressionFactory factory) { this.factory = factory; } public Expression parseExpression(String expression, Class expectedType, FunctionMapper fMapper) throws ELException { try { ELContextImpl ctx = new ELContextImpl(ELResolverImpl.DefaultResolver); if (fMapper != null) { ctx.setFunctionMapper(new FunctionMapperImpl(fMapper)); } ValueExpression ve = this.factory.createValueExpression(ctx, expression, expectedType); return new ExpressionImpl(ve); } catch (javax.el.ELException e) { throw new ELParseException(e.getMessage()); } } public Object evaluate(String expression, Class expectedType, VariableResolver vResolver, FunctionMapper fMapper) throws ELException { return this.parseExpression(expression, expectedType, fMapper).evaluate(vResolver); } } Other Tomcat examples (source code examples)Here is a short list of links related to this Tomcat ExpressionEvaluatorImpl.java source code file: |
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