Package org.apache.ode.bpel.runtime

Source Code of org.apache.ode.bpel.runtime.ExpressionLanguageRuntimeRegistry

/*
* 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);
  }

}
TOP

Related Classes of org.apache.ode.bpel.runtime.ExpressionLanguageRuntimeRegistry

TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.