| /* |
| * 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.ode.bpel.runtime; |
| |
| import org.apache.ode.bpel.common.FaultException; |
| import org.apache.ode.bpel.explang.ConfigurationException; |
| import org.apache.ode.bpel.explang.EvaluationContext; |
| import org.apache.ode.bpel.explang.EvaluationException; |
| import org.apache.ode.bpel.explang.ExpressionLanguageRuntime; |
| import org.apache.ode.bpel.o.OExpression; |
| import org.apache.ode.bpel.o.OExpressionLanguage; |
| import org.apache.ode.utils.xsd.Duration; |
| import org.w3c.dom.Node; |
| |
| import java.util.Calendar; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * A registry of {@link ExpressionLanguageRuntime} objects that is able to map |
| * a given expression to the appropriate language runtime. |
| */ |
| public class ExpressionLanguageRuntimeRegistry { |
| private final Map<OExpressionLanguage, ExpressionLanguageRuntime> _runtimes = |
| new HashMap<OExpressionLanguage, ExpressionLanguageRuntime>(); |
| |
| public ExpressionLanguageRuntimeRegistry() {} |
| |
| public void registerRuntime(OExpressionLanguage oelang) throws ConfigurationException { |
| try { |
| String className = oelang.properties.get("runtime-class"); |
| // backward compatibility. |
| className = className.replace("com.fs.pxe.","org.apache.ode."); |
| Class cls = Class.forName(className); |
| ExpressionLanguageRuntime elangRT = (ExpressionLanguageRuntime) cls.newInstance(); |
| elangRT.initialize(oelang.properties); |
| _runtimes.put(oelang, elangRT); |
| } catch (ConfigurationException ce) { |
| throw ce; |
| } catch (IllegalAccessException e) { |
| throw new ConfigurationException("Illegal Access Error", e); |
| } catch (InstantiationException e) { |
| throw new ConfigurationException("Instantiation Error", e); |
| } catch (ClassNotFoundException e) { |
| throw new ConfigurationException("Class Not Found Error", e); |
| } |
| |
| } |
| |
| public String evaluateAsString(OExpression cexp, EvaluationContext ctx) throws FaultException , EvaluationException { |
| return findRuntime(cexp).evaluateAsString(cexp, ctx); |
| } |
| |
| public boolean evaluateAsBoolean(OExpression cexp, EvaluationContext ctx) throws FaultException, EvaluationException { |
| return findRuntime(cexp).evaluateAsBoolean(cexp, ctx); |
| } |
| |
| public Number evaluateAsNumber(OExpression cexp, EvaluationContext ctx) throws FaultException, EvaluationException { |
| return findRuntime(cexp).evaluateAsNumber(cexp, ctx); |
| } |
| |
| public List evaluate(OExpression cexp, EvaluationContext ctx) throws FaultException, EvaluationException { |
| return findRuntime(cexp).evaluate(cexp, ctx); |
| } |
| |
| public Node evaluateNode(OExpression cexp, EvaluationContext ctx) throws FaultException, EvaluationException { |
| return findRuntime(cexp).evaluateNode(cexp, ctx); |
| } |
| |
| public Calendar evaluateAsDate(OExpression cexp, EvaluationContext ctx) throws FaultException, EvaluationException { |
| return findRuntime(cexp).evaluateAsDate(cexp, ctx); |
| } |
| |
| public Duration evaluateAsDuration(OExpression cexp, EvaluationContext ctx) throws FaultException, EvaluationException { |
| return findRuntime(cexp).evaluateAsDuration(cexp, ctx); |
| } |
| |
| private ExpressionLanguageRuntime findRuntime(OExpression cexp) { |
| return _runtimes.get(cexp.expressionLanguage); |
| } |
| |
| } |