| /* |
| * 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.elang.xpath20.runtime; |
| |
| import java.util.Calendar; |
| |
| import javax.xml.namespace.QName; |
| import javax.xml.xpath.XPathVariableResolver; |
| |
| import net.sf.saxon.Configuration; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.ode.bpel.common.FaultException; |
| import org.apache.ode.bpel.elang.xpath10.o.OXPath10ExpressionBPEL20; |
| import org.apache.ode.bpel.elang.xpath20.compiler.WrappedResolverException; |
| import org.apache.ode.bpel.explang.EvaluationContext; |
| import org.apache.ode.bpel.o.OLink; |
| import org.apache.ode.bpel.o.OMessageVarType; |
| import org.apache.ode.bpel.o.OScope; |
| import org.apache.ode.bpel.o.OXsdTypeVarType; |
| import org.apache.ode.utils.Namespaces; |
| import org.apache.ode.utils.xsd.XSTypes; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Node; |
| |
| /** |
| * @author mriou <mriou at apache dot org> |
| */ |
| public class JaxpVariableResolver implements XPathVariableResolver { |
| |
| private static final Log __log = LogFactory.getLog(JaxpVariableResolver.class); |
| |
| private EvaluationContext _ectx; |
| private OXPath10ExpressionBPEL20 _oxpath; |
| private Configuration _config; |
| |
| public JaxpVariableResolver(EvaluationContext ectx, OXPath10ExpressionBPEL20 oxpath, Configuration config) { |
| _ectx = ectx; |
| _oxpath = oxpath; |
| _config = config; |
| } |
| |
| public Object resolveVariable(QName variableName) { |
| __log.debug("Resolving variable " + variableName); |
| |
| if(!(_oxpath instanceof OXPath10ExpressionBPEL20)){ |
| throw new IllegalStateException("XPath variables not supported for bpel 1.1"); |
| } |
| |
| // Custom variables |
| if (variableName.getNamespaceURI().equals(Namespaces.ODE_EXTENSION_NS)) { |
| if ("pid".equals(variableName.getLocalPart())) { |
| return _ectx.getProcessId(); |
| } |
| } |
| |
| OXPath10ExpressionBPEL20 expr = _oxpath; |
| if(expr.isJoinExpression){ |
| OLink olink = _oxpath.links.get(variableName.getLocalPart()); |
| |
| try { |
| return _ectx.isLinkActive(olink) ? Boolean.TRUE : Boolean.FALSE; |
| } catch (FaultException e) { |
| throw new WrappedResolverException(e); |
| } |
| }else{ |
| String varName; |
| String partName; |
| int dotloc = variableName.getLocalPart().indexOf('.'); |
| if (dotloc == -1) { |
| varName = variableName.getLocalPart(); |
| partName = null; |
| } else { |
| varName = variableName.getLocalPart().substring(0, dotloc); |
| partName = variableName.getLocalPart().substring(dotloc + 1); |
| } |
| OScope.Variable variable = _oxpath.vars.get(varName); |
| OMessageVarType.Part part = partName == null ? null : ((OMessageVarType)variable.type).parts.get(partName); |
| |
| try{ |
| final Node variableNode = _ectx.readVariable(variable, part); |
| if (variableNode == null) |
| throw new FaultException(variable.getOwner().constants.qnSelectionFailure, |
| "Unknown variable " + variableName.getLocalPart()); |
| if (_ectx.narrowTypes()) { |
| if (variable.type instanceof OXsdTypeVarType && ((OXsdTypeVarType)variable.type).simple) |
| return getSimpleContent(variableNode,((OXsdTypeVarType)variable.type).xsdType); |
| if (part != null && part.type instanceof OXsdTypeVarType && ((OXsdTypeVarType)part.type).simple) |
| return getSimpleContent(variableNode,((OXsdTypeVarType)part.type).xsdType); |
| } |
| |
| // Saxon used to expect a node list, but now a regular node will suffice. |
| return variableNode; |
| }catch(FaultException e){ |
| throw new WrappedResolverException(e); |
| } |
| } |
| } |
| |
| private Object getSimpleContent(Node simpleNode, QName type) { |
| Document doc = (simpleNode instanceof Document) |
| ? ((Document) simpleNode) |
| : simpleNode.getOwnerDocument(); |
| String text = simpleNode.getTextContent(); |
| try { |
| Object jobj = XSTypes.toJavaObject(type,text); |
| if (jobj instanceof Calendar) { |
| // Saxon 9.x prefers Dates over Calendars. |
| return ((Calendar) jobj).getTime(); |
| } else if (jobj instanceof String) { |
| // Saxon 9.x has a bug for which this is a workaround. |
| return doc.createTextNode(jobj.toString()); |
| } |
| return jobj; |
| } catch (Exception e) { |
| // Elegant way failed, trying brute force |
| try { |
| return Integer.valueOf(text); |
| } catch (NumberFormatException nfe) { } |
| try { |
| return Double.valueOf(text); |
| } catch (NumberFormatException nfe) { } |
| |
| // Remember: always a node set |
| if (simpleNode.getParentNode() != null) |
| return simpleNode.getParentNode().getChildNodes(); |
| else { |
| return doc.createTextNode(text); |
| } |
| } |
| } |
| } |