| /* |
| * 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.explang.konst; |
| |
| import org.apache.ode.bpel.common.FaultException; |
| import org.apache.ode.bpel.explang.*; |
| import org.apache.ode.bpel.o.OConstantExpression; |
| import org.apache.ode.bpel.o.OExpression; |
| import org.apache.ode.utils.xsd.Duration; |
| import org.w3c.dom.Node; |
| |
| import java.util.Calendar; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * An implementation of the {@link org.apache.ode.bpel.explang.ExpressionLanguageRuntime} interface |
| * for constant expressions. |
| */ |
| public class KonstExpressionLanguageRuntimeImpl implements ExpressionLanguageRuntime { |
| |
| public void initialize(Map properties) throws ConfigurationException { |
| } |
| |
| public String evaluateAsString(OExpression cexp, EvaluationContext ctx) throws FaultException , EvaluationException { |
| OConstantExpression konst = (OConstantExpression) cexp; |
| if (konst.getVal() instanceof String) |
| return (String) konst.getVal(); |
| throw new TypeCastException(TypeCastException.TYPE_STRING, konst.getVal().toString()); |
| } |
| |
| public boolean evaluateAsBoolean(OExpression cexp, EvaluationContext ctx) throws FaultException, EvaluationException { |
| OConstantExpression konst = (OConstantExpression) cexp; |
| if (konst.getVal() instanceof Boolean) |
| return ((Boolean)konst.getVal()).booleanValue(); |
| throw new TypeCastException(TypeCastException.TYPE_BOOLEAN, konst.getVal().toString()); |
| } |
| |
| public Number evaluateAsNumber(OExpression cexp, EvaluationContext ctx) throws FaultException, EvaluationException { |
| OConstantExpression konst = (OConstantExpression) cexp; |
| if (konst.getVal() instanceof Number) |
| return (Number)konst.getVal(); |
| throw new TypeCastException(TypeCastException.TYPE_NUMBER, konst.getVal().toString()); |
| } |
| |
| public List evaluate(OExpression cexp, EvaluationContext ctx) |
| throws FaultException, EvaluationException { |
| OConstantExpression konst = (OConstantExpression) cexp; |
| if (konst.getVal() instanceof List) |
| return (List) konst.getVal(); |
| throw new TypeCastException(TypeCastException.TYPE_NODELIST, konst.getVal().toString()); |
| } |
| |
| public Node evaluateNode(OExpression cexp, EvaluationContext context) throws FaultException, EvaluationException { |
| OConstantExpression konst = (OConstantExpression) cexp; |
| if (konst.getVal() instanceof Node) |
| return (Node) konst.getVal(); |
| throw new TypeCastException(TypeCastException.TYPE_NODE, konst.getVal().toString()); |
| } |
| |
| public Calendar evaluateAsDate(OExpression cexp, EvaluationContext context) |
| throws FaultException , EvaluationException { |
| OConstantExpression konst = (OConstantExpression) cexp; |
| |
| if (konst.getVal() instanceof Calendar) |
| return (Calendar) konst.getVal(); |
| |
| throw new TypeCastException(TypeCastException.TYPE_DATE, konst.getVal().toString()); |
| |
| } |
| |
| public Duration evaluateAsDuration(OExpression cexp, EvaluationContext context) |
| throws FaultException, EvaluationException { |
| |
| OConstantExpression konst = (OConstantExpression) cexp; |
| |
| if (konst.getVal() instanceof Duration) |
| return (Duration) konst.getVal(); |
| |
| throw new TypeCastException(TypeCastException.TYPE_DURATION, konst.getVal().toString()); |
| } |
| } |