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Posted to commits@ode.apache.org by mr...@apache.org on 2008/08/05 01:54:05 UTC

svn commit: r682542 [2/4] - in /ode/branches/rtver: axis2/src/main/java/org/apache/ode/axis2/ bpel-api/src/main/java/org/apache/ode/bpel/rapi/ bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/ bpel-compiler/src/main/java/org/apache/ode/bpel/com...

Added: ode/branches/rtver/bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/v2/BpelCompilerImpl.java
URL: http://svn.apache.org/viewvc/ode/branches/rtver/bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/v2/BpelCompilerImpl.java?rev=682542&view=auto
==============================================================================
--- ode/branches/rtver/bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/v2/BpelCompilerImpl.java (added)
+++ ode/branches/rtver/bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/v2/BpelCompilerImpl.java Mon Aug  4 16:54:02 2008
@@ -0,0 +1,1764 @@
+/*
+ * 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.compiler.v2;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.Stack;
+
+import javax.wsdl.Definition;
+import javax.wsdl.Message;
+import javax.wsdl.Operation;
+import javax.wsdl.Part;
+import javax.wsdl.PortType;
+import javax.wsdl.WSDLException;
+import javax.wsdl.xml.WSDLReader;
+import javax.xml.namespace.QName;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.ode.bpel.compiler.api.CompilationException;
+import org.apache.ode.bpel.compiler.api.CompilationMessage;
+import org.apache.ode.bpel.compiler.api.CompileListener;
+import org.apache.ode.bpel.compiler.v2.CompilerContext;
+import org.apache.ode.bpel.compiler.v2.ExpressionCompiler;
+import org.apache.ode.bpel.compiler.v2.ExtensionValidator;
+import org.apache.ode.bpel.compiler.bom.Activity;
+import org.apache.ode.bpel.compiler.bom.Bpel11QNames;
+import org.apache.ode.bpel.compiler.bom.Bpel20QNames;
+import org.apache.ode.bpel.compiler.bom.BpelObject;
+import org.apache.ode.bpel.compiler.bom.Catch;
+import org.apache.ode.bpel.compiler.bom.CompensationHandler;
+import org.apache.ode.bpel.compiler.bom.Correlation;
+import org.apache.ode.bpel.compiler.bom.CorrelationSet;
+import org.apache.ode.bpel.compiler.bom.Expression;
+import org.apache.ode.bpel.compiler.bom.Expression11;
+import org.apache.ode.bpel.compiler.bom.Extension;
+import org.apache.ode.bpel.compiler.bom.FaultHandler;
+import org.apache.ode.bpel.compiler.bom.Import;
+import org.apache.ode.bpel.compiler.bom.LinkSource;
+import org.apache.ode.bpel.compiler.bom.LinkTarget;
+import org.apache.ode.bpel.compiler.bom.OnAlarm;
+import org.apache.ode.bpel.compiler.bom.OnEvent;
+import org.apache.ode.bpel.compiler.bom.PartnerLink;
+import org.apache.ode.bpel.compiler.bom.PartnerLinkType;
+import org.apache.ode.bpel.compiler.bom.Process;
+import org.apache.ode.bpel.compiler.bom.Property;
+import org.apache.ode.bpel.compiler.bom.PropertyAlias;
+import org.apache.ode.bpel.compiler.bom.Scope;
+import org.apache.ode.bpel.compiler.bom.ScopeActivity;
+import org.apache.ode.bpel.compiler.bom.ScopeLikeActivity;
+import org.apache.ode.bpel.compiler.bom.TerminationHandler;
+import org.apache.ode.bpel.compiler.bom.Variable;
+import org.apache.ode.bpel.compiler.wsdl.Definition4BPEL;
+import org.apache.ode.bpel.compiler.wsdl.WSDLFactory4BPEL;
+import org.apache.ode.bpel.compiler.*;
+import org.apache.ode.bpel.rtrep.v2.DebugInfo;
+import org.apache.ode.bpel.rtrep.v2.OActivity;
+import org.apache.ode.bpel.rtrep.v2.OAssign;
+import org.apache.ode.bpel.rtrep.v2.OCatch;
+import org.apache.ode.bpel.rtrep.v2.OCompensate;
+import org.apache.ode.bpel.rtrep.v2.OCompensationHandler;
+import org.apache.ode.bpel.rtrep.v2.OConstantExpression;
+import org.apache.ode.bpel.rtrep.v2.OConstantVarType;
+import org.apache.ode.bpel.rtrep.v2.OElementVarType;
+import org.apache.ode.bpel.rtrep.v2.OEventHandler;
+import org.apache.ode.bpel.rtrep.v2.OExpression;
+import org.apache.ode.bpel.rtrep.v2.OExpressionLanguage;
+import org.apache.ode.bpel.rtrep.v2.OExtVar;
+import org.apache.ode.bpel.rtrep.v2.OFaultHandler;
+import org.apache.ode.bpel.rtrep.v2.OFlow;
+import org.apache.ode.bpel.rtrep.v2.OLValueExpression;
+import org.apache.ode.bpel.rtrep.v2.OLink;
+import org.apache.ode.bpel.rtrep.v2.OMessageVarType;
+import org.apache.ode.bpel.rtrep.v2.OPartnerLink;
+import org.apache.ode.bpel.rtrep.v2.OProcess;
+import org.apache.ode.bpel.rtrep.v2.ORethrow;
+import org.apache.ode.bpel.rtrep.v2.OScope;
+import org.apache.ode.bpel.rtrep.v2.OSequence;
+import org.apache.ode.bpel.rtrep.v2.OTerminationHandler;
+import org.apache.ode.bpel.rtrep.v2.OVarType;
+import org.apache.ode.bpel.rtrep.v2.OXsdTypeVarType;
+import org.apache.ode.bpel.rtrep.v2.OXslSheet;
+import org.apache.ode.utils.GUID;
+import org.apache.ode.utils.NSContext;
+import org.apache.ode.utils.StreamUtils;
+import org.apache.ode.utils.fs.FileUtils;
+import org.apache.ode.utils.msg.MessageBundle;
+import org.apache.ode.utils.stl.CollectionsX;
+import org.apache.ode.utils.stl.MemberOfFunction;
+import org.apache.ode.utils.stl.UnaryFunction;
+import org.apache.ode.utils.xsd.XSUtils;
+import org.apache.ode.utils.xsd.XsdException;
+import org.apache.ode.utils.xsd.SchemaModel;
+import org.apache.xerces.xni.parser.XMLEntityResolver;
+import org.w3c.dom.Node;
+
+/**
+ * Compiler for converting BPEL process descriptions (and their associated WSDL and XSD documents) into compiled representations
+ * suitable for execution by the ODE BPEL Service Provider. TODO: Move process validation into this class.
+ */
+abstract class BpelCompilerImpl extends BaseCompiler implements CompilerContext, BpelCompiler {
+    /** Class-severity logger. */
+    protected static final Log __log = LogFactory.getLog(BpelCompilerImpl.class);
+
+    /** Standardized compiler messages. */
+    private static final CommonCompilationMessages __cmsgs = MessageBundle.getMessages(CommonCompilationMessages.class);
+
+    private org.apache.ode.bpel.compiler.bom.Process _processDef;
+
+    private Date _generatedDate;
+
+    private HashMap<Class, ActivityGenerator> _actGenerators = new HashMap<Class, ActivityGenerator>();
+
+    private boolean _supressJoinFailure = false;
+
+    /** Are we currently in an atomic scope context? */
+    private boolean _atomicScope = false;
+
+    /** Are we currently compiling an isolated scope context. */
+    private boolean _isolatedScope = false;
+
+    /** Syntactic scope stack. */
+    private StructureStack _structureStack = new StructureStack();
+
+    /** Fault/compensate recovery stack. */
+    private Stack<OScope> _recoveryContextStack = new Stack<OScope>();
+
+    /** History of compiled activities */
+    private List<OActivity> _compiledActivities = new ArrayList<OActivity>();
+
+    private ResourceFinder _resourceFinder;
+
+    private WSDLRegistry _wsdlRegistry;
+
+    private final List<CompilationMessage> _errors = new ArrayList<CompilationMessage>();
+
+    private CompileListener _compileListener;
+
+    private final HashMap<String, ExpressionCompiler> _expLanguageCompilers = new HashMap<String, ExpressionCompiler>();
+
+    private final HashMap<String, OExpressionLanguage> _expLanguages = new HashMap<String, OExpressionLanguage>();
+
+    private final Set<String> _declaredExtensionNS = new HashSet<String>();
+    
+    private WSDLFactory4BPEL _wsdlFactory;
+
+    private OExpressionLanguage _konstExprLang;
+
+    private Map<QName, Node> _customProcessProperties;
+
+    private URI _processURI;
+
+	private Map<QName, ExtensionValidator> _extensionValidators = new HashMap<QName, ExtensionValidator>();
+
+    BpelCompilerImpl(WSDLFactory4BPEL wsdlFactory) {
+        _wsdlFactory = wsdlFactory;
+        _wsdlRegistry = new WSDLRegistry(this);
+    }
+
+    public void addWsdlImport(URI from, URI wsdlImport, SourceLocation sloc) {
+        Definition4BPEL def;
+        try {
+            WSDLReader r = _wsdlFactory.newWSDLReader();
+            WSDLLocatorImpl locator = new WSDLLocatorImpl(_resourceFinder, from.resolve(wsdlImport));
+            def = (Definition4BPEL) r.readWSDL(locator);
+        } catch (WSDLException e) {
+            recoveredFromError(sloc, new CompilationException(__cmsgs.errWsdlParseError(e.getFaultCode(), e.getLocation(), e
+                    .getMessage())));
+            throw new CompilationException(__cmsgs.errWsdlImportFailed(wsdlImport.toASCIIString(), e.getFaultCode())
+                    .setSource(sloc), e);
+        }
+
+        try {
+            _wsdlRegistry.addDefinition(def, _resourceFinder, from.resolve(wsdlImport));
+            if (__log.isDebugEnabled())
+                __log.debug("Added WSDL Definition: " + wsdlImport);
+        } catch (CompilationException ce) {
+            recoveredFromError(sloc, ce);
+        }
+    }
+
+    public void addXsdImport(URI from, URI location, SourceLocation sloc) {
+        URI resFrom = from.resolve(location);
+        if (__log.isDebugEnabled())
+            __log.debug("Adding XSD import from " + resFrom + " location " + location);
+        XMLEntityResolver resolver = new WsdlFinderXMLEntityResolver(_resourceFinder, location, new HashMap<URI, String>(), true);
+        try {
+            Map<URI, byte[]> schemas = XSUtils.captureSchema(resFrom.toString(), resolver);
+            InputStream xsdStream = _resourceFinder.openResource(resFrom);
+            byte[] data;
+            try {
+                data = StreamUtils.read(xsdStream);
+            } finally {
+                xsdStream.close();
+            }
+            schemas.put(resFrom, data);
+            _wsdlRegistry.addSchemas(schemas);
+        } catch (XsdException e) {
+            CompilationException ce = new CompilationException(__cmsgs.errInvalidImport(location.toString()));
+            recoveredFromError(sloc, ce);
+        } catch (MalformedURLException e) {
+            CompilationException ce = new CompilationException(__cmsgs.errInvalidImport(location.toString()));
+            recoveredFromError(sloc, ce);
+        } catch (IOException e) {
+            CompilationException ce = new CompilationException(__cmsgs.errInvalidImport(location.toString()));
+            recoveredFromError(sloc, ce);
+        }
+    }
+
+    public void setResourceFinder(ResourceFinder finder) {
+        if (finder == null) {
+            _resourceFinder = new DefaultResourceFinder();
+        } else {
+            _resourceFinder = finder;
+        }
+
+    }
+
+    public void setCompileListener(CompileListener compileListener) {
+        _compileListener = compileListener;
+    }
+
+    public CompileListener getCompileListener() {
+        return _compileListener;
+    }
+
+    public void setCustomProperties(Map<QName, Node> customProperties) {
+        _customProcessProperties = customProperties;
+    }
+
+    /**
+     * Get the process definition.
+     * 
+     * @return the process definition
+     */
+    public Process getProcessDef() {
+        return _processDef;
+    }
+
+    public PortType resolvePortType(final QName portTypeName) {
+        if (portTypeName == null)
+            throw new NullPointerException("Null portTypeName argument!");
+
+        PortType portType = _wsdlRegistry.getPortType(portTypeName);
+        if (portType == null)
+            throw new CompilationException(__cmsgs.errUndeclaredPortType(portTypeName));
+        return portType;
+    }
+
+    public OLink resolveLink(String linkName) {
+        OLink ret = null;
+
+        // Fist find where the link is declared.
+        for (Iterator<OActivity> i = _structureStack.iterator(); i.hasNext();) {
+            OActivity oact = i.next();
+            if (oact instanceof OFlow)
+                ret = ((OFlow) oact).getLocalLink(linkName);
+            if (ret != null)
+                return ret;
+        }
+
+        throw new CompilationException(__cmsgs.errUndeclaredLink(linkName));
+    }
+
+    public OScope.Variable resolveVariable(String varName) {
+        for (Iterator<OScope> i = _structureStack.oscopeIterator(); i.hasNext();) {
+            OScope.Variable var = i.next().getLocalVariable(varName);
+            if (var != null)
+                return var;
+        }
+        // A "real" variable couldn't be found, checking if we're dealing with a
+        // process custom property
+        if (_customProcessProperties != null && _customProcessProperties.get(varName) != null) {
+
+        }
+        throw new CompilationException(__cmsgs.errUndeclaredVariable(varName));
+    }
+
+    public List<OScope.Variable> getAccessibleVariables() {
+        ArrayList<OScope.Variable> result = new ArrayList<OScope.Variable>();
+        for (Iterator<OScope> i = _structureStack.oscopeIterator(); i.hasNext();) {
+            result.addAll(i.next().variables.values());
+        }
+        return result;
+    }
+
+    public OScope.Variable resolveMessageVariable(String inputVar) throws CompilationException {
+        OScope.Variable var = resolveVariable(inputVar);
+        if (!(var.type instanceof OMessageVarType))
+            throw new CompilationException(__cmsgs.errMessageVariableRequired(inputVar));
+        return var;
+    }
+
+    public OScope.Variable resolveMessageVariable(String inputVar, QName messageType) throws CompilationException {
+        OScope.Variable var = resolveMessageVariable(inputVar);
+        if (!((OMessageVarType) var.type).messageType.equals(messageType))
+            throw new CompilationException(__cmsgs.errVariableTypeMismatch(var.name, messageType,
+                    ((OMessageVarType) var.type).messageType));
+        return var;
+    }
+
+    public OProcess.OProperty resolveProperty(QName name) {
+
+        for (OProcess.OProperty prop : _oprocess.properties) {
+            if (prop.name.equals(name))
+                return prop;
+        }
+        throw new CompilationException(__cmsgs.errUndeclaredProperty(name));
+    }
+
+    public OProcess.OPropertyAlias resolvePropertyAlias(OScope.Variable variable, QName propertyName) {
+        if (!(variable.type instanceof OMessageVarType))
+            throw new CompilationException(__cmsgs.errMessageVariableRequired(variable.name));
+
+        OProcess.OProperty property = resolveProperty(propertyName);
+        OProcess.OPropertyAlias alias = property.getAlias(variable.type);
+        if (alias == null)
+            throw new CompilationException(__cmsgs.errUndeclaredPropertyAlias(variable.type.toString(), propertyName));
+
+        return alias;
+    }
+
+    public OScope resolveCompensatableScope(final String scopeToCompensate) throws CompilationException {
+        if (_recoveryContextStack.isEmpty())
+            throw new CompilationException(__cmsgs.errCompensateNAtoContext());
+        OScope recoveryContext = _recoveryContextStack.peek();
+
+        OScope scopeToComp = CollectionsX.find_if(recoveryContext.compensatable, new MemberOfFunction<OScope>() {
+            public boolean isMember(OScope o) {
+                return o.name != null && o.name.equals(scopeToCompensate);
+            }
+        });
+        if (scopeToComp == null)
+            throw new CompilationException(__cmsgs.errCompensateOfInvalidScope(scopeToCompensate));
+
+        return scopeToComp;
+    }
+
+    public String getSourceLocation() {
+        return _processDef.getSource() == null ? null : _processDef.getSource();
+    }
+
+    public OScope.CorrelationSet resolveCorrelationSet(String csetName) {
+        for (Iterator<OScope> i = _structureStack.oscopeIterator(); i.hasNext();) {
+            OScope.CorrelationSet cset = i.next().getCorrelationSet(csetName);
+            if (cset != null)
+                return cset;
+        }
+
+        throw new CompilationException(__cmsgs.errUndeclaredCorrelationSet(csetName));
+    }
+
+    @SuppressWarnings("unchecked")
+    public OMessageVarType resolveMessageType(QName messageType) {
+        OMessageVarType msgType = _oprocess.messageTypes.get(messageType);
+        if (msgType == null) {
+            Message msg = _wsdlRegistry.getMessage(messageType);
+            if (msg == null) {
+                throw new CompilationException(__cmsgs.errUndeclaredMessage(messageType.getLocalPart(), messageType
+                        .getNamespaceURI()));
+            }
+
+            List<OMessageVarType.Part> parts = new ArrayList<OMessageVarType.Part>();
+            CollectionsX.transform(parts, ((List<Part>) msg.getOrderedParts(null)),
+                    new UnaryFunction<Part, OMessageVarType.Part>() {
+                        public OMessageVarType.Part apply(Part part) {
+                            OVarType partType;
+                            if (part.getElementName() != null) {
+                                partType = resolveElementType(part.getElementName());
+                            } else {
+                                partType = resolveXsdType(part.getTypeName());
+                            }
+
+                            OMessageVarType.Part opart = new OMessageVarType.Part(_oprocess, part.getName(), partType);
+                            opart.debugInfo = createDebugInfo(_processDef, "Message Variable Part: " + part.getName());
+                            return opart;
+                        }
+                    });
+            msgType = new OMessageVarType(_oprocess, msg.getQName(), parts);
+            msgType.debugInfo = createDebugInfo(_processDef, "Message Type: " + msg.getQName());
+            _oprocess.messageTypes.put(msg.getQName(), msgType);
+        }
+        return msgType;
+    }
+
+    public OXsdTypeVarType resolveXsdType(QName typeName) throws CompilationException {
+        OXsdTypeVarType type = _oprocess.xsdTypes.get(typeName);
+        if (type == null) {
+            SchemaModel model = null;
+            try {
+                model = _wsdlRegistry.getSchemaModel();
+            } catch (IllegalArgumentException iaa) { }
+            if (model == null || !model.knowsSchemaType(typeName))
+                throw new CompilationException(__cmsgs.errUndeclaredXsdType(typeName));
+
+            type = new OXsdTypeVarType(_oprocess);
+            type.debugInfo = createDebugInfo(_processDef, "XSD Type: " + typeName);
+            type.xsdType = typeName;
+            type.simple = _wsdlRegistry.getSchemaModel().isSimpleType(typeName);
+            _oprocess.xsdTypes.put(typeName, type);
+        }
+
+        return type;
+    }
+
+    public OMessageVarType.Part resolvePart(OScope.Variable var, String partname) {
+        if (!(var.type instanceof OMessageVarType))
+            throw new CompilationException(__cmsgs.errMessageVariableRequired(var.name));
+        OMessageVarType msgVarType = (OMessageVarType) var.type;
+        OMessageVarType.Part part = msgVarType.parts.get(partname);
+        if (part == null)
+            throw new CompilationException(__cmsgs.errUndeclaredMessagePart(var.name, ((OMessageVarType) var.type).messageType,
+                    partname));
+        return part;
+    }
+
+    public OMessageVarType.Part resolveHeaderPart(OScope.Variable var, String partname) {
+        if (!(var.type instanceof OMessageVarType))
+            throw new CompilationException(__cmsgs.errMessageVariableRequired(var.name));
+        OMessageVarType msgVarType = (OMessageVarType) var.type;
+        return msgVarType.parts.get(partname);
+    }
+
+    public PartnerLinkType resolvePartnerLinkType(QName partnerLinkType) {
+
+        PartnerLinkType plinkType = _wsdlRegistry.getPartnerLinkType(partnerLinkType);
+        if (plinkType == null)
+            throw new CompilationException(__cmsgs.errUndeclaredPartnerLinkType(partnerLinkType));
+        return plinkType;
+    }
+
+    public OPartnerLink resolvePartnerLink(String name) {
+        for (Iterator<OScope> i = _structureStack.oscopeIterator(); i.hasNext();) {
+            OPartnerLink oplink = i.next().getLocalPartnerLink(name);
+            if (oplink != null)
+                return oplink;
+        }
+
+        throw new CompilationException(__cmsgs.errUndeclaredPartnerLink(name));
+    }
+
+    @SuppressWarnings("unchecked")
+    public Operation resolvePartnerRoleOperation(final OPartnerLink partnerLink, final String operationName) {
+        if (partnerLink.partnerRolePortType == null) {
+            throw new CompilationException(__cmsgs.errPartnerLinkDoesNotDeclarePartnerRole(partnerLink.getName()));
+        }
+
+        Operation found = CollectionsX.find_if((List<Operation>) partnerLink.partnerRolePortType.getOperations(),
+                new MemberOfFunction<Operation>() {
+                    public boolean isMember(Operation o) {
+                        // Guard against WSDL4j funny business.
+                        if ((o.getInput() == null || o.getInput().getMessage() == null)
+                                && (o.getOutput() == null || o.getOutput().getMessage() == null)) {
+                            return false;
+                        }
+                        return o.getName().equals(operationName);
+                    }
+                });
+
+        if (found == null)
+            throw new CompilationException(__cmsgs
+                    .errUndeclaredOperation(partnerLink.partnerRolePortType.getQName(), operationName));
+        return found;
+    }
+
+    @SuppressWarnings("unchecked")
+    public Operation resolveMyRoleOperation(final OPartnerLink partnerLink, final String operationName) {
+        if (partnerLink.myRolePortType == null) {
+            throw new CompilationException(__cmsgs.errPartnerLinkDoesNotDeclareMyRole(partnerLink.getName()));
+        }
+
+        Operation found = CollectionsX.find_if((List<Operation>) partnerLink.myRolePortType.getOperations(),
+                new MemberOfFunction<Operation>() {
+                    public boolean isMember(Operation o) {
+                        // Again, guard against WSDL4J's "help"
+                        if ((o.getInput() == null || o.getInput().getMessage() == null)
+                                && (o.getOutput() == null || o.getOutput().getMessage() == null))
+                            return false;
+                        return o.getName().equals(operationName);
+                    }
+                });
+        if (found == null) {
+            throw new CompilationException(__cmsgs.errUndeclaredOperation(partnerLink.myRolePortType.getQName(), operationName));
+        }
+        return found;
+    }
+
+    /**
+     * Produce a boolean {@link OExpression} expression that returns a constant value.
+     * 
+     * @param value
+     *            constant value to return
+     * @return {@link OExpression} returning a constant value.
+     */
+    public OExpression constantExpr(boolean value) {
+        OConstantExpression ce = new OConstantExpression(_oprocess, value ? Boolean.TRUE : Boolean.FALSE);
+        ce.debugInfo = createDebugInfo(_processDef, "Constant Boolean Expression: " + value);
+        ce.expressionLanguage = _konstExprLang;
+        return ce;
+    }
+
+    public OLValueExpression compileLValueExpr(Expression expression) throws CompilationException {
+        return (OLValueExpression) compileExpr(expression, false, true);
+    }
+
+    public OExpression compileJoinCondition(Expression expression) throws CompilationException {
+        return compileExpr(expression, true, false);
+    }
+
+    public OExpression compileExpr(Expression expression) throws CompilationException {
+        return compileExpr(expression, false, false);
+    }
+
+    public OExpression compileExpr(String expr, NSContext nc) {
+        // Does this really work?
+        BpelObject cur = _structureStack.topSource();
+        return compileExpr(new Expression11(cur.getElement(), cur.getElement().getOwnerDocument().createTextNode(expr)), false,
+                false);
+    }
+
+    private OExpression compileExpr(Expression expression, boolean isJoinCondition, boolean isLValue) {
+        String expLang = getExpressionLanguage(expression);
+        ExpressionCompiler ec = findExpLangCompiler(expLang);
+        ec.setCompilerContext(this);
+
+        try {
+            OExpression oexpr = (isJoinCondition) ? ec.compileJoinCondition(expression) : ec.compile(expression);
+
+            oexpr.debugInfo = createDebugInfo(expression, expression.toString());
+
+            OExpressionLanguage expLanguage = _expLanguages.get(expLang);
+            if (expLanguage == null) {
+                expLanguage = new OExpressionLanguage(_oprocess, ec.getProperties());
+                expLanguage.debugInfo = createDebugInfo(_processDef, "Expression Language: " + expLang);
+                expLanguage.expressionLanguageUri = expLang;
+                _expLanguages.put(expLang, expLanguage);
+                _oprocess.expressionLanguages.add(expLanguage);
+            }
+            oexpr.expressionLanguage = expLanguage;
+
+            // Cleaning up expression compiler for furter compilation
+            ec.setCompilerContext(null);
+
+            return oexpr;
+        } catch (CompilationException ce) {
+            if (ce.getCompilationMessage().source == null)
+                ce.getCompilationMessage().setSource(expression);
+            throw ce;
+        }
+    }
+
+    public OProcess getOProcess() throws CompilationException {
+        return _oprocess;
+    }
+
+    public void recoveredFromError(SourceLocation where, CompilationException bce) throws CompilationException {
+        if (bce.getCompilationMessage().source == null)
+            bce.getCompilationMessage().source = where;
+
+        if (_compileListener == null) {
+            switch (bce.getCompilationMessage().severity) {
+            case CompilationMessage.INFO:
+                if (__log.isInfoEnabled()) {
+                    __log.info(bce.toErrorMessage());
+                }
+                break;
+            case CompilationMessage.WARN:
+                if (__log.isWarnEnabled()) {
+                    __log.warn(bce.toErrorMessage());
+                }
+                break;
+            case CompilationMessage.ERROR:
+                if (__log.isErrorEnabled()) {
+                    __log.error(bce.toErrorMessage());
+                }
+            }
+        } else {
+            if (__log.isDebugEnabled()) {
+                __log.debug(bce.toErrorMessage(), bce);
+            }
+            _compileListener.onCompilationMessage(bce.getCompilationMessage());
+        }
+
+        _errors.add(bce.getCompilationMessage());
+    }
+
+    /**
+     * Compile a process.
+     */
+    public OProcess compile(final Process process, ResourceFinder rf) throws CompilationException {
+        if (process == null)
+            throw new NullPointerException("Null process parameter");
+
+        setResourceFinder(rf);
+        _processURI = process.getURI();
+        _processDef = process;
+        _generatedDate = new Date();
+        _structureStack.clear();
+
+        String bpelVersionUri = null;
+        switch (process.getBpelVersion()) {
+        case BPEL11:
+            bpelVersionUri = Bpel11QNames.NS_BPEL4WS_2003_03;
+            break;
+        case BPEL20_DRAFT:
+            bpelVersionUri = Bpel20QNames.NS_WSBPEL2_0;
+            break;
+        case BPEL20:
+            bpelVersionUri = Bpel20QNames.NS_WSBPEL2_0_FINAL_EXEC;
+            break;
+        default:
+            throw new IllegalStateException("Bad bpel version: " + process.getBpelVersion());
+        }
+
+        _oprocess = new OProcess(bpelVersionUri);
+        _oprocess.guid = new GUID().toString();
+        _oprocess.constants = makeConstants();
+        _oprocess.debugInfo = createDebugInfo(process, "process");
+
+        if (process.getTargetNamespace() == null) {
+            _oprocess.targetNamespace = "--UNSPECIFIED--";
+            recoveredFromError(process, new CompilationException(__cmsgs.errProcessNamespaceNotSpecified()));
+        } else {
+            _oprocess.targetNamespace = _processDef.getTargetNamespace();
+        }
+
+        if (process.getName() == null) {
+            _oprocess.processName = "--UNSPECIFIED--";
+            recoveredFromError(process, new CompilationException(__cmsgs.errProcessNameNotSpecified()));
+        } else {
+            _oprocess.processName = _processDef.getName();
+        }
+
+        _oprocess.compileDate = _generatedDate;
+
+        _konstExprLang = new OExpressionLanguage(_oprocess, null);
+        _konstExprLang.debugInfo = createDebugInfo(_processDef, "Constant Value Expression Language");
+        _konstExprLang.expressionLanguageUri = "uri:www.fivesight.com/konstExpression";
+        _konstExprLang.properties.put("runtime-class",
+                "org.apache.ode.bpel.runtime.explang.konst.KonstExpressionLanguageRuntimeImpl");
+        _oprocess.expressionLanguages.add(_konstExprLang);
+
+        // Process the imports. Note, we expect all processes (Event BPEL 1.1)
+        // to have an import declaration. This should be automatically generated
+        // by the 1.1 parser.
+        for (Import imprt : _processDef.getImports()) {
+            try {
+                compile(_processURI, imprt);
+            } catch (CompilationException bce) {
+                // We try to recover from import problems by continuing
+                recoveredFromError(imprt, bce);
+            }
+        }
+
+        switch (_processDef.getSuppressJoinFailure()) {
+        case NO:
+        case NOTSET:
+            _supressJoinFailure = false;
+            break;
+        case YES:
+            _supressJoinFailure = true;
+            break;
+        }
+        // compile ALL wsdl properties; needed for property extraction
+        Definition4BPEL[] defs = _wsdlRegistry.getDefinitions();
+        for (Definition4BPEL def : defs) {
+            for (Property property : def.getProperties()) {
+                compile(property);
+            }
+        }
+        // compile ALL wsdl property aliases
+        for (Definition4BPEL def1 : defs) {
+            for (PropertyAlias propertyAlias : def1.getPropertyAliases()) {
+                compile(propertyAlias);
+            }
+        }
+
+        // compile extensions
+        for (Extension e : _processDef.getExtensions()) {
+        	compileExtension(e);
+        }
+
+        OScope procesScope = new OScope(_oprocess, null);
+        procesScope.name = "__PROCESS_SCOPE:" + process.getName();
+        procesScope.debugInfo = createDebugInfo(process, null);
+        _oprocess.procesScope = compileScope(procesScope, process, new Runnable() {
+            public void run() {
+                if (process.getRootActivity() == null) {
+                    throw new CompilationException(__cmsgs.errNoRootActivity());
+                }
+                // Process custom properties are created as variables associated
+                // with the top scope
+                if (_customProcessProperties != null) {
+                    for (Map.Entry<QName, Node> customVar : _customProcessProperties.entrySet()) {
+                        final OScope oscope = _structureStack.topScope();
+                        OVarType varType = new OConstantVarType(_oprocess, customVar.getValue());
+                        OScope.Variable ovar = new OScope.Variable(_oprocess, varType);
+                        ovar.name = customVar.getKey().getLocalPart();
+                        ovar.declaringScope = oscope;
+                        ovar.debugInfo = createDebugInfo(null, "Process custom property variable");
+                        oscope.addLocalVariable(ovar);
+                        if (__log.isDebugEnabled())
+                            __log.debug("Compiled custom property variable " + ovar);
+                    }
+                }
+                _structureStack.topScope().activity = compile(process.getRootActivity());
+            }
+        });
+
+        assert _structureStack.size() == 0;
+
+        boolean hasErrors = false;
+        StringBuffer sb = new StringBuffer();
+        for (CompilationMessage msg : _errors) {
+            if (msg.severity >= CompilationMessage.ERROR) {
+                hasErrors = true;
+                sb.append('\t');
+                sb.append(msg.toErrorString());
+                sb.append('\n');
+            }
+        }
+
+        if (hasErrors) {
+            throw new CompilationException(__cmsgs.errCompilationErrors(_errors.size(), sb.toString()));
+        }
+        return _oprocess;
+    }
+
+    // TODO unused?
+    // private String getBpelPartnerLinkUri(){
+    // switch(_processDef.getBpelVersion()){
+    // case Process.BPEL_V110:
+    // return Constants.NS_BPEL4WS_PARTNERLINK_2003_05;
+    // case Process.BPEL_V200:
+    // return Constants.NS_WSBPEL_PARTNERLINK_2004_03;
+    // default:
+    // throw new IllegalStateException("Bad bpel version.");
+    // }
+    // }
+
+    /**
+     * Compile an import declaration. According to the specification: <blockquote> A BPEL4WSWS-BPEL process definition relies on XML
+     * Schema and WSDL 1.1 for the definition of datatypes and service interfaces. Process definitions also rely on other constructs
+     * such as partner link types, message properties and property aliases (defined later in this specification) which are defined
+     * within WSDL 1.1 documents using the WSDL 1.1 language extensibility feature.
+     * 
+     * The &lt;import&gt; element is used within a BPEL4WSWS-BPEL process to explicitly indicate a dependency on external XML Schema
+     * or WSDL definitions. Any number of <import> elements may appear as initial children of the <process> element, before any
+     * other child element. Each <import> element contains three mandatory attributes:
+     * <ol>
+     * <li>namespace -- The namespace attribute specifies the URI namespace of the imported definitions. </li>
+     * <li>location -- The location attribute contains a URI indicating the location of a document that contains relevant
+     * definitions in the namespace specified. The document located at the URI MUST contain definitions belonging to the same
+     * namespace as indicated by the namespace attribute. </li>
+     * <li>importType -- The importType attribute identifies the type of document being imported by providing the URI of the
+     * encoding language. The value MUST be set to "http://www.w3.org/2001/XMLSchema" when importing XML Schema 1.0 documents, and
+     * to "http://schemas.xmlsoap.org/wsdl/" when importing WSDL 1.1 documents.
+     * 
+     * @param imprt
+     *            BOM representation of the import
+     */
+    private void compile(URI current, Import imprt) {
+        try {
+            if (imprt.getImportType() == null)
+                throw new CompilationException(__cmsgs.errUnspecifiedImportType().setSource(imprt));
+
+            if (imprt.getLocation() == null)
+                throw new CompilationException(__cmsgs.errMissingImportLocation().setSource(imprt));
+
+            if (Import.IMPORTTYPE_WSDL11.equals(imprt.getImportType())) {
+                addWsdlImport(current, imprt.getLocation(), imprt);
+            } else if (Import.IMPORTTYPE_XMLSCHEMA10.equals(imprt.getImportType())) {
+                addXsdImport(current, imprt.getLocation(), imprt);
+            } else
+                throw new CompilationException(__cmsgs.errUnknownImportType(imprt.getImportType()).setSource(imprt));
+        } catch (CompilationException ce) {
+            if (ce.getCompilationMessage().source == null)
+                ce.getCompilationMessage().setSource(imprt);
+            throw ce;
+        }
+    }
+
+    public OActivity compile(final Activity source) {
+        if (source == null)
+            throw new IllegalArgumentException("null-argument");
+
+        boolean previousSupressJoinFailure = _supressJoinFailure;
+        switch (source.getSuppressJoinFailure()) {
+        case NO:
+            _supressJoinFailure = false;
+            break;
+        case YES:
+            _supressJoinFailure = true;
+            break;
+        }
+
+        OActivity compiled;
+        try {
+            compiled = (source instanceof ScopeLikeActivity) ? compileSLC((ScopeLikeActivity) source, new OScope.Variable[0])
+                    : compileActivity(true, source);
+            compiled.suppressJoinFailure = _supressJoinFailure;
+        } finally {
+            _supressJoinFailure = previousSupressJoinFailure;
+        }
+
+        if (__log.isDebugEnabled())
+            __log.debug("Compiled activity " + compiled);
+        return compiled;
+    }
+
+    private OCompensate createDefaultCompensateActivity(BpelObject source, String desc) {
+        OCompensate activity = new OCompensate(_oprocess, getCurrent());
+        activity.name = "__autoGenCompensate:" + _structureStack.topScope().name;
+        activity.debugInfo = createDebugInfo(source, desc);
+        return activity;
+    }
+
+    public OScope compileSLC(final ScopeLikeActivity source, final OScope.Variable[] variables) {
+        final OScope implicitScope = new OScope(_oprocess, getCurrent());
+        implicitScope.implicitScope = true;
+        implicitScope.name = createName(source, "implicit-scope");
+        implicitScope.debugInfo = createDebugInfo(source, "Scope-like construct " + source);
+        compileScope(implicitScope, source.getScope(), new Runnable() {
+            public void run() {
+                compileLinks(source);
+                for (OScope.Variable v : variables) {
+                    v.declaringScope = implicitScope;
+                    implicitScope.addLocalVariable(v);
+                }
+                if (source instanceof ScopeActivity) {
+                    Activity scopeChild = ((ScopeActivity) source).getChildActivity();
+                    if (scopeChild == null)
+                        throw new CompilationException(__cmsgs.errEmptyScope().setSource(source));
+                    implicitScope.activity = compile(scopeChild);
+                } else {
+                    implicitScope.activity = compileActivity(false, source);
+                }
+            }
+        });
+
+        return implicitScope;
+    }
+
+    private OActivity compileActivity(final boolean doLinks, final Activity source) {
+        final ActivityGenerator actgen = findActivityGen(source);
+        final OActivity oact = actgen.newInstance(source);
+        oact.name = createName(source, "activity");
+        oact.debugInfo = createDebugInfo(source, "Activity body for " + source);
+        _compiledActivities.add(oact);
+        compile(oact, source, new Runnable() {
+            public void run() {
+                if (doLinks)
+                    compileLinks(source);
+                actgen.compile(oact, source);
+            }
+        });
+
+        return oact;
+    }
+
+    private void compileLinks(Activity source) {
+        /* Source Links Fixup */
+        for (LinkSource ls : source.getLinkSources())
+            compileLinkSource(ls);
+
+        /* Target Links Fixup */
+        for (LinkTarget lt : source.getLinkTargets())
+            compileLinkTarget(lt);
+
+        _structureStack.topActivity().joinCondition = (source.getJoinCondition() == null || source.getLinkTargets().isEmpty()) ? null
+                : compileJoinCondition(source.getJoinCondition());
+    }
+
+    private String createName(Activity source, String type) {
+        if (source.getName() != null)
+            return source.getName();
+
+        return source.getType().getLocalPart() + "-" + type + "-line-" + source.getLineNo();
+    }
+
+    private OProcess.OProperty compile(Property property) {
+        OProcess.OProperty oproperty = new OProcess.OProperty(_oprocess);
+        oproperty.name = property.getName();
+        oproperty.debugInfo = createDebugInfo(_processDef, "Property " + property.getName());
+
+        boolean simpleType = false;
+        try {
+            simpleType = _wsdlRegistry.getSchemaModel().isSimpleType(property.getPropertyType());
+        } catch (NullPointerException npe) {
+            // Relying on the following check
+        }
+        if (!simpleType)
+            throw new CompilationException(__cmsgs.errPropertyDeclaredWithComplexType(property.getName(),
+                    property.getPropertyType()).setSource(property));
+
+        _oprocess.properties.add(oproperty);
+
+        if (__log.isDebugEnabled())
+            __log.debug("Compiled property " + oproperty);
+
+        return oproperty;
+    }
+
+    private OProcess.OPropertyAlias compile(PropertyAlias src) {
+        OProcess.OProperty property = resolveProperty(src.getPropertyName());
+
+        OProcess.OPropertyAlias alias = new OProcess.OPropertyAlias(_oprocess);
+        alias.debugInfo = createDebugInfo(_processDef, "PropertyAlias " + src.getPropertyName() + " for " + src.getMessageType());
+        if (src.getMessageType() == null) {
+            throw new CompilationException(__cmsgs.errAliasUndeclaredMessage(src.getPropertyName(), src.getQuery().getPath()));
+        }
+
+        OMessageVarType messageType = resolveMessageType(src.getMessageType());
+        alias.varType = messageType;
+        // bpel 2.0 excludes declaration of part;
+        // bpel 1.1 requires it
+        if (src.getPart() != null) {
+            alias.part = messageType.parts.get(src.getPart());
+            if (alias.part == null)
+                throw new CompilationException(__cmsgs.errUnknownPartInAlias(src.getPart(), messageType.messageType.toString()));
+        }
+        if (src.getQuery() != null)
+            alias.location = compileExpr(src.getQuery());
+        property.aliases.add(alias);
+        alias.debugInfo = createDebugInfo(_processDef, src.getMessageType() + " --> " + src.getPropertyName());
+        return alias;
+    }
+
+    private void compileLinkTarget(LinkTarget target) {
+        OLink ol = resolveLink(target.getLinkName());
+        assert ol != null;
+        ol.debugInfo = createDebugInfo(target, target.toString());
+        if (ol.target != null)
+            throw new CompilationException(__cmsgs.errDuplicateLinkTarget(target.getLinkName()).setSource(target));
+        ol.target = _structureStack.topActivity();
+
+        _structureStack.topActivity().targetLinks.add(ol);
+    }
+
+    private void compileLinkSource(LinkSource linksrc) {
+        OLink ol = resolveLink(linksrc.getLinkName());
+        assert ol != null;
+        ol.debugInfo = createDebugInfo(linksrc, linksrc.toString());
+        if (ol.source != null)
+            throw new CompilationException(__cmsgs.errDuplicateLinkSource(linksrc.getLinkName()).setSource(linksrc));
+        ol.source = _structureStack.topActivity();
+        ol.transitionCondition = linksrc.getTransitionCondition() == null ? constantExpr(true) : compileExpr(linksrc
+                .getTransitionCondition());
+
+        _structureStack.topActivity().sourceLinks.add(ol);
+        _structureStack.topActivity().outgoingLinks.add(ol);
+    }
+
+    private void compile(final PartnerLink plink) {
+        OPartnerLink oplink = new OPartnerLink(_oprocess);
+        oplink.debugInfo = createDebugInfo(plink, plink.toString());
+        try {
+            PartnerLinkType plinkType = resolvePartnerLinkType(plink.getPartnerLinkType());
+
+            oplink.partnerLinkType = plinkType.getName();
+            oplink.name = plink.getName();
+            oplink.initializePartnerRole = plink.isInitializePartnerRole();
+
+            if (plink.hasMyRole()) {
+                PartnerLinkType.Role myRole = plinkType.getRole(plink.getMyRole());
+                if (myRole == null)
+                    throw new CompilationException(__cmsgs.errUndeclaredRole(plink.getMyRole(), plinkType.getName()));
+                oplink.myRoleName = myRole.getName();
+                QName portType = myRole.getPortType();
+                if (portType == null)
+                    throw new CompilationException(__cmsgs.errMissingMyRolePortType(portType, plink.getMyRole(), plinkType
+                            .getName()));
+                oplink.myRolePortType = resolvePortType(portType);
+            }
+
+            if (plink.isInitializePartnerRole() && !plink.hasPartnerRole()) {
+                throw new CompilationException(__cmsgs.errPartnerLinkNoPartnerRoleButInitialize(plink.getName()));
+            }
+            if (plink.hasPartnerRole()) {
+                PartnerLinkType.Role partnerRole = plinkType.getRole(plink.getPartnerRole());
+                if (partnerRole == null)
+                    throw new CompilationException(__cmsgs.errUndeclaredRole(plink.getPartnerRole(), plinkType.getName()));
+                oplink.partnerRoleName = partnerRole.getName();
+                QName portType = partnerRole.getPortType();
+                if (portType == null)
+                    throw new CompilationException(__cmsgs.errMissingPartnerRolePortType(portType, plink.getPartnerRole(),
+                            plinkType.getName()));
+                oplink.partnerRolePortType = resolvePortType(portType);
+            }
+
+            oplink.declaringScope = _structureStack.topScope();
+            if (oplink.declaringScope.partnerLinks.containsKey(oplink.name))
+                throw new CompilationException(__cmsgs.errDuplicatePartnerLinkDecl(oplink.name));
+            oplink.declaringScope.partnerLinks.put(oplink.name, oplink);
+            _oprocess.allPartnerLinks.add(oplink);
+        } catch (CompilationException ce) {
+            ce.getCompilationMessage().setSource(plink);
+            throw ce;
+        }
+    }
+
+    private void compile(CorrelationSet cset) {
+        OScope oscope = _structureStack.topScope();
+        OScope.CorrelationSet ocset = new OScope.CorrelationSet(_oprocess);
+        ocset.name = cset.getName();
+        ocset.declaringScope = oscope;
+        ocset.debugInfo = createDebugInfo(cset, cset.toString());
+        QName[] setprops = cset.getProperties();
+        for (int j = 0; j < setprops.length; ++j)
+            ocset.properties.add(resolveProperty(setprops[j]));
+        oscope.addCorrelationSet(ocset);
+    }
+
+    public OActivity getCurrent() {
+        return _structureStack.topActivity();
+    }
+
+    public void compile(OActivity context, BpelObject source, Runnable run) {
+        DefaultActivityGenerator.defaultExtensibilityElements(context, source);
+        _structureStack.push(context, source);
+        try {
+            run.run();
+        } finally {
+            OActivity popped = _structureStack.pop();
+
+            OActivity newtop = _structureStack.topActivity();
+            OScope topScope = _structureStack.topScope();
+
+            if (newtop != null) {
+                newtop.nested.add(popped);
+                // Transfer outgoing and incoming links, excluding the locally defined links.
+                newtop.incomingLinks.addAll(popped.incomingLinks);
+                if (newtop instanceof OFlow) newtop.incomingLinks.removeAll(((OFlow) newtop).localLinks);
+                newtop.outgoingLinks.addAll(popped.outgoingLinks);
+
+                if (newtop instanceof OFlow) newtop.outgoingLinks.removeAll(((OFlow) newtop).localLinks);
+
+                // Transfer variables read/writen
+                newtop.variableRd.addAll(popped.variableRd);
+                newtop.variableWr.addAll(popped.variableWr);
+            }
+
+            if (topScope != null && popped instanceof OScope) topScope.compensatable.add((OScope) popped);
+        }
+    }
+
+    private OScope compileScope(final OScope oscope, final Scope src, final Runnable init) {
+        if (oscope.name == null)
+            throw new IllegalArgumentException("Unnamed scope:" + src);
+
+        oscope.debugInfo = createDebugInfo(src, src.toString());
+
+        boolean previousAtomicScope = _atomicScope;
+        if (src.getAtomicScope() != null) {
+            boolean newValue = src.getAtomicScope().booleanValue();
+            if (_atomicScope)
+                throw new CompilationException(__cmsgs.errAtomicScopeNesting(newValue));
+
+            oscope.atomicScope = _atomicScope = newValue;
+        }
+
+        if (src.getIsolatedScope() != null) {
+            if (src.getIsolatedScope()) {
+                if (_isolatedScope)
+                    throw new CompilationException(__cmsgs.errIsolatedScopeNesting());
+
+                oscope.isolatedScope = _isolatedScope = true;
+            }
+        }
+
+        try {
+            compile(oscope, src, new Runnable() {
+                public void run() {
+                    for (Variable var : src.getVariables()) {
+                        try {
+                            compile(var);
+                        } catch (CompilationException ce) {
+                            recoveredFromError(var, ce);
+                        }
+                    }
+
+                    for (CorrelationSet cset : src.getCorrelationSetDecls()) {
+                        try {
+                            compile(cset);
+                        } catch (CompilationException ce) {
+                            recoveredFromError(cset, ce);
+                        }
+                    }
+
+                    for (PartnerLink plink : src.getPartnerLinks()) {
+                        try {
+                            compile(plink);
+                        } catch (CompilationException ce) {
+                            recoveredFromError(plink, ce);
+                        }
+                    }
+
+                    if (!src.getEvents().isEmpty() || !src.getAlarms().isEmpty()) {
+                        oscope.eventHandler = new OEventHandler(_oprocess);
+                        oscope.eventHandler.debugInfo = createDebugInfo(src, "Event Handler for " + src);
+                    }
+
+                    for (OnEvent onEvent : src.getEvents()) {
+                        try {
+                            compile(onEvent);
+                        } catch (CompilationException ce) {
+                            recoveredFromError(src, ce);
+                        }
+                    }
+
+                    for (OnAlarm onAlarm : src.getAlarms()) {
+                        try {
+                            compile(onAlarm);
+                        } catch (CompilationException ce) {
+                            recoveredFromError(src, ce);
+                        }
+
+                    }
+
+                    if (init != null)
+                        try {
+                            init.run();
+                        } catch (CompilationException ce) {
+                            recoveredFromError(src, ce);
+                        }
+
+                    try {
+                        compile(src.getCompensationHandler());
+                    } catch (CompilationException bce) {
+                        recoveredFromError(src.getCompensationHandler(), bce);
+                    }
+
+                    try {
+                        compile(src.getTerminationHandler());
+                    } catch (CompilationException bce) {
+                        recoveredFromError(src.getTerminationHandler(), bce);
+                    }
+
+                    try {
+                        compile(src.getFaultHandler());
+                    } catch (CompilationException bce) {
+                        recoveredFromError(src.getFaultHandler(), bce);
+                    }
+                }
+            });
+        } finally {
+            _atomicScope = previousAtomicScope;
+        }
+
+        return oscope;
+    }
+
+    private void compile(final OnAlarm onAlarm) {
+        OScope oscope = _structureStack.topScope();
+        assert oscope.eventHandler != null;
+
+        final OEventHandler.OAlarm oalarm = new OEventHandler.OAlarm(_oprocess);
+        oalarm.debugInfo = createDebugInfo(onAlarm, "OnAlarm Event Handler: " + onAlarm);
+
+        if (onAlarm.getFor() != null && onAlarm.getUntil() == null) {
+            oalarm.forExpr = compileExpr(onAlarm.getFor());
+        } else if (onAlarm.getFor() == null && onAlarm.getUntil() != null) {
+            oalarm.untilExpr = compileExpr(onAlarm.getUntil());
+        } else if (onAlarm.getFor() != null && onAlarm.getUntil() != null) {
+            throw new CompilationException(__cmsgs.errInvalidAlarm().setSource(onAlarm));
+        } else if (onAlarm.getRepeatEvery() == null) {
+            throw new CompilationException(__cmsgs.errInvalidAlarm().setSource(onAlarm));
+        }
+
+        if (onAlarm.getRepeatEvery() != null)
+            oalarm.repeatExpr = compileExpr(onAlarm.getRepeatEvery());
+
+        if (onAlarm.getActivity() == null) throw new CompilationException(__cmsgs.errInvalidAlarm().setSource(onAlarm));
+        oalarm.activity = compile(onAlarm.getActivity());
+
+        // Check links crossing restrictions.
+        for (OLink link : oalarm.incomingLinks)
+            try {
+                throw new CompilationException(__cmsgs.errLinkCrossesEventHandlerBoundary(link.name).setSource(onAlarm));
+            } catch (CompilationException ce) {
+                recoveredFromError(onAlarm, ce);
+            }
+
+        for (OLink link : oalarm.outgoingLinks)
+            try {
+                throw new CompilationException(__cmsgs.errLinkCrossesEventHandlerBoundary(link.name).setSource(onAlarm));
+            } catch (CompilationException ce) {
+                recoveredFromError(onAlarm, ce);
+            }
+
+        oscope.eventHandler.onAlarms.add(oalarm);
+    }
+
+    private void compile(final OnEvent onEvent) {
+        final OScope oscope = _structureStack.topScope();
+        assert oscope.eventHandler != null;
+
+        final OEventHandler.OEvent oevent = new OEventHandler.OEvent(_oprocess, oscope);
+        oevent.name = "__eventHandler:";
+        oevent.debugInfo = createDebugInfo(onEvent, null);
+        compile(oevent, onEvent, new Runnable() {
+            public void run() {
+                switch (_processDef.getBpelVersion()) {
+                case BPEL11:
+                    oevent.variable = resolveMessageVariable(onEvent.getVariable());
+                    break;
+                case BPEL20_DRAFT:
+                case BPEL20:
+                    if (onEvent.getMessageType() == null && onEvent.getElementType() == null)
+                        throw new CompilationException(__cmsgs.errVariableDeclMissingType(onEvent.getVariable()).setSource(onEvent));
+                    if (onEvent.getMessageType() != null && onEvent.getElementType() != null)
+                        throw new CompilationException(__cmsgs.errVariableDeclInvalid(onEvent.getVariable()).setSource(onEvent));
+
+                    OVarType varType;
+                    if (onEvent.getMessageType() != null)
+                        varType = resolveMessageType(onEvent.getMessageType());
+                    else if (onEvent.getElement() != null)
+                        varType = resolveElementType(onEvent.getElementType());
+                    else
+                        throw new CompilationException(__cmsgs.errUnrecognizedVariableDeclaration(onEvent.getVariable()));
+
+                    oevent.variable = new OScope.Variable(_oprocess, varType);
+                    oevent.variable.name = onEvent.getVariable();
+                    oevent.variable.declaringScope = _structureStack.topScope();
+
+                    oevent.addLocalVariable(oevent.variable);
+                    break;
+                default:
+                    throw new AssertionError("Unexpected BPEL VERSION constatnt: " + _processDef.getBpelVersion());
+                }
+
+                oevent.partnerLink = resolvePartnerLink(onEvent.getPartnerLink());
+                oevent.operation = resolveMyRoleOperation(oevent.partnerLink, onEvent.getOperation());
+                oevent.messageExchangeId = onEvent.getMessageExchangeId();
+
+                if (onEvent.getPortType() != null && !onEvent.getPortType().equals(oevent.partnerLink.myRolePortType.getQName()))
+                    throw new CompilationException(__cmsgs.errPortTypeMismatch(onEvent.getPortType(),
+                            oevent.partnerLink.myRolePortType.getQName()));
+
+                for (Correlation correlation : onEvent.getCorrelations()) {
+                    OScope.CorrelationSet cset = resolveCorrelationSet(correlation.getCorrelationSet());
+
+                    switch (correlation.getInitiate()) {
+                    case UNSET:
+                    case NO:
+                        if (oevent.matchCorrelation != null)
+                            throw new CompilationException(__cmsgs.errTODO("Matching multiple correlations sets."));
+                        oevent.matchCorrelation = cset;
+                        oevent.partnerLink.addCorrelationSetForOperation(oevent.operation, cset);
+                        break;
+                    case YES:
+                        oevent.initCorrelations.add(cset);
+                        break;
+                    case JOIN:
+                        throw new CompilationException(__cmsgs.errTODO("Rendezvous."));
+                    }
+
+                    for (OProcess.OProperty property : cset.properties) {
+                        // Force resolution of alias, to make sure that we have
+                        // one for this variable-property pair.
+                        resolvePropertyAlias(oevent.variable, property.name);
+                    }
+
+                }
+
+                if (onEvent.getActivity() == null) throw new CompilationException(__cmsgs.errInvalidAlarm().setSource(onEvent));
+                oevent.activity = compile(onEvent.getActivity());
+            }
+        });
+
+        // Check links crossing restrictions.
+        for (OLink link : oevent.incomingLinks)
+            try {
+                throw new CompilationException(__cmsgs.errLinkCrossesEventHandlerBoundary(link.name));
+            } catch (CompilationException ce) {
+                recoveredFromError(onEvent, ce);
+            }
+
+        for (OLink link : oevent.outgoingLinks)
+            try {
+                throw new CompilationException(__cmsgs.errLinkCrossesEventHandlerBoundary(link.name));
+            } catch (CompilationException ce) {
+                recoveredFromError(onEvent, ce);
+            }
+
+        oscope.eventHandler.onMessages.add(oevent);
+    }
+
+    private DebugInfo createDebugInfo(BpelObject bpelObject, String description) {
+        int lineNo = bpelObject == null ? -1 : bpelObject.getLineNo();
+        String str = description == null && bpelObject != null ? bpelObject.toString() : null;
+        Map<QName, Object> extElmt = bpelObject == null ? null : bpelObject.getExtensibilityElements();
+        DebugInfo debugInfo = new DebugInfo(_processDef.getSource(), lineNo, extElmt);
+        debugInfo.description = str;
+        return debugInfo;
+    }
+
+    private void compile(final Variable src) {
+        final OScope oscope = _structureStack.topScope();
+
+        if (src.getKind() == null)
+            throw new CompilationException(__cmsgs.errVariableDeclMissingType(src.getName()).setSource(src));
+
+        if (oscope.getLocalVariable(src.getName()) != null)
+            throw new CompilationException(__cmsgs.errDuplicateVariableDecl(src.getName()).setSource(src));
+
+        if (src.getTypeName() == null) throw new CompilationException(__cmsgs.errUnrecognizedVariableDeclaration(src.getName()));
+        OVarType varType;
+        switch (src.getKind()) {
+        case ELEMENT:
+            varType = resolveElementType(src.getTypeName());
+            break;
+        case MESSAGE:
+            varType = resolveMessageType(src.getTypeName());
+            break;
+        case SCHEMA:
+            varType = resolveXsdType(src.getTypeName());
+            break;
+        default:
+            throw new CompilationException(__cmsgs.errUnrecognizedVariableDeclaration(src.getName()));
+        }
+
+        OScope.Variable ovar = new OScope.Variable(_oprocess, varType);
+        ovar.name = src.getName();
+        ovar.declaringScope = oscope;
+        ovar.debugInfo = createDebugInfo(src, null);
+        
+        ovar.extVar = compileExtVar(src);
+
+        oscope.addLocalVariable(ovar);
+
+        if (__log.isDebugEnabled())
+            __log.debug("Compiled variable " + ovar);
+    }
+
+
+    private void compile(TerminationHandler terminationHandler) {
+        OScope oscope = _structureStack.topScope();
+        oscope.terminationHandler = new OTerminationHandler(_oprocess, oscope);
+        oscope.terminationHandler.name = "__terminationHandler:" + oscope.name;
+        oscope.terminationHandler.debugInfo = createDebugInfo(terminationHandler, null);
+        if (terminationHandler == null) {
+            oscope.terminationHandler.activity = createDefaultCompensateActivity(null,
+                    "Auto-generated 'compensate all' pseudo-activity for default termination handler on " + oscope.toString());
+        } else {
+            _recoveryContextStack.push(oscope);
+            try {
+                oscope.terminationHandler.activity = compile(terminationHandler.getActivity());
+            } finally {
+                _recoveryContextStack.pop();
+            }
+        }
+    }
+
+    private void compile(CompensationHandler compensationHandler) {
+        OScope oscope = _structureStack.topScope();
+        oscope.compensationHandler = new OCompensationHandler(_oprocess, oscope);
+        oscope.compensationHandler.name = "__compenationHandler_" + oscope.name;
+        oscope.compensationHandler.debugInfo = createDebugInfo(compensationHandler, null);
+        if (compensationHandler == null) {
+            oscope.compensationHandler.activity = createDefaultCompensateActivity(compensationHandler,
+                    "Auto-generated 'compensate all' pseudo-activity for default compensation handler on  " + oscope.toString());
+        } else {
+            _recoveryContextStack.push(oscope);
+            try {
+                oscope.compensationHandler.activity = compile(compensationHandler.getActivity());
+            } finally {
+                _recoveryContextStack.pop();
+            }
+        }
+    }
+
+    private void compile(FaultHandler fh) {
+        OScope oscope = _structureStack.topScope();
+        oscope.faultHandler = new OFaultHandler(_oprocess);
+        if (fh == null) {
+            // The default fault handler compensates all child activities
+            // AND then rethrows the fault!
+            final OCatch defaultCatch = new OCatch(_oprocess, oscope);
+            defaultCatch.name = "__defaultFaultHandler:" + oscope.name;
+            defaultCatch.faultName = null; // catch any fault
+            defaultCatch.faultVariable = null;
+            OSequence sequence = new OSequence(_oprocess, defaultCatch);
+            sequence.name = "__defaultFaultHandler_sequence:" + oscope.name;
+            sequence.debugInfo = createDebugInfo(fh, "Auto-generated sequence activity.");
+            ORethrow rethrow = new ORethrow(_oprocess, sequence);
+            rethrow.name = "__defaultFaultHandler_rethrow:" + oscope.name;
+            rethrow.debugInfo = createDebugInfo(fh, "Auto-generated re-throw activity.");
+            sequence.sequence.add(createDefaultCompensateActivity(fh, "Default compensation handler for " + oscope));
+            sequence.sequence.add(rethrow);
+
+            defaultCatch.activity = sequence;
+            oscope.faultHandler.catchBlocks.add(defaultCatch);
+            if (__log.isDebugEnabled())
+                __log.debug("Compiled default catch block " + defaultCatch + " for " + oscope);
+
+        } else {
+            _recoveryContextStack.push(oscope);
+            try {
+
+                int i = 0;
+                for (final Catch catchSrc : fh.getCatches()) {
+                    final OCatch ctch = new OCatch(_oprocess, oscope);
+                    ctch.debugInfo = createDebugInfo(catchSrc, catchSrc.toString());
+                    ctch.name = "__catch#" + i + ":" + _structureStack.topScope().name;
+                    ctch.faultName = catchSrc.getFaultName();
+                    compile(ctch, catchSrc, new Runnable() {
+                        public void run() {
+
+                            if (catchSrc.getFaultVariable() != null) {
+                                OScope.Variable faultVar;
+                                switch (_processDef.getBpelVersion()) {
+                                case BPEL11:
+                                    faultVar = resolveVariable(catchSrc.getFaultVariable());
+                                    if (!(faultVar.type instanceof OMessageVarType))
+                                        throw new CompilationException(__cmsgs.errMessageVariableRequired(
+                                                catchSrc.getFaultVariable()).setSource(catchSrc));
+                                    break;
+                                case BPEL20_DRAFT:
+                                case BPEL20:
+                                    if (catchSrc.getFaultVariableMessageType() == null
+                                            && catchSrc.getFaultVariableElementType() == null)
+                                        throw new CompilationException(__cmsgs.errVariableDeclMissingType(
+                                                catchSrc.getFaultVariable()).setSource(catchSrc));
+                                    if (catchSrc.getFaultVariableMessageType() != null
+                                            && catchSrc.getFaultVariableElementType() != null)
+                                        throw new CompilationException(__cmsgs.errVariableDeclMissingType(
+                                                catchSrc.getFaultVariable()).setSource(catchSrc));
+
+                                    OVarType faultVarType;
+                                    if (catchSrc.getFaultVariableMessageType() != null)
+                                        faultVarType = resolveMessageType(catchSrc.getFaultVariableMessageType());
+                                    else if (catchSrc.getFaultVariableElementType() != null)
+                                        faultVarType = resolveElementType(catchSrc.getFaultVariableElementType());
+                                    else
+                                        throw new CompilationException(__cmsgs.errUnrecognizedVariableDeclaration(catchSrc
+                                                .getFaultVariable()));
+
+                                    faultVar = new OScope.Variable(_oprocess, faultVarType);
+                                    faultVar.name = catchSrc.getFaultVariable();
+                                    faultVar.declaringScope = _structureStack.topScope();
+
+                                    ctch.addLocalVariable(faultVar);
+                                    break;
+                                default:
+                                    throw new AssertionError("Unexpected BPEL VERSION constatnt: " + _processDef.getBpelVersion());
+                                }
+
+                                ctch.faultVariable = faultVar;
+                            }
+
+                            if (catchSrc.getActivity() == null)
+                                throw new CompilationException(__cmsgs.errEmptyCatch().setSource(catchSrc));
+                            _structureStack.topScope().activity = compile(catchSrc.getActivity());
+                        }
+                    });
+                    oscope.faultHandler.catchBlocks.add(ctch);
+                    ++i;
+                }
+            } finally {
+                _recoveryContextStack.pop();
+            }
+
+        }
+    }
+
+    public OXslSheet compileXslt(String docStrUri) throws CompilationException {
+        URI docUri;
+        try {
+            docUri = new URI(FileUtils.encodePath(docStrUri));
+        } catch (URISyntaxException e) {
+            throw new CompilationException(__cmsgs.errInvalidDocXsltUri(docStrUri));
+        }
+
+        String sheetBody = loadXsltSheet(_processURI.resolve(docUri));
+        if (sheetBody == null) {
+            throw new CompilationException(__cmsgs.errCantFindXslt(docStrUri));
+        }
+
+        OXslSheet oXslSheet = new OXslSheet(_oprocess);
+        oXslSheet.uri = docUri;
+        oXslSheet.sheetBody = sheetBody;
+
+        _oprocess.xslSheets.put(oXslSheet.uri, oXslSheet);
+        return oXslSheet;
+    }
+
+    /**
+     * Registers a declared extension.
+     * Since compilation may take place independently of the target 
+     * engine configuration, the compiler will not check whether a
+     * extension implementation is registered.
+     */
+    private void compileExtension(Extension ext){
+        OProcess.OExtension oextension = new OProcess.OExtension(_oprocess);
+        oextension.namespaceURI = ext.getNamespaceURI();
+        oextension.mustUnderstand = ext.isMustUnderstand();
+        
+        oextension.debugInfo = createDebugInfo(_processDef, "Extension " + ext.getNamespaceURI());
+
+        _declaredExtensionNS.add(ext.getNamespaceURI());
+        _oprocess.declaredExtensions.add(oextension);
+        if (ext.isMustUnderstand()) {
+        	_oprocess.mustUnderstandExtensions.add(oextension);
+        }
+
+        if (__log.isDebugEnabled())
+            __log.debug("Compiled extension " + oextension);
+    }
+    
+    private String loadXsltSheet(URI uri) {
+
+        // TODO: lots of null returns, should have some better error messages.
+        InputStream is;
+        try {
+            is = _resourceFinder.openResource(uri);
+        } catch (Exception e1) {
+            return null;
+        }
+        if (is == null)
+            return null;
+
+        try {
+            return new String(StreamUtils.read(is));
+        } catch (IOException e) {
+            __log.debug("IO error", e);
+            // todo: this should produce a message
+            return null;
+        } finally {
+            try {
+                is.close();
+            } catch (Exception ex) {
+                // No worries.
+            }
+        }
+    }
+
+    public boolean isPartnerLinkAssigned(String plink) {
+        for (OActivity act : _compiledActivities) {
+            if (act instanceof OAssign) {
+                OAssign assign = (OAssign) act;
+                for (OAssign.OAssignOperation operation: assign.operations) {
+                	if (operation instanceof OAssign.Copy) {
+                		OAssign.Copy copy = (OAssign.Copy)operation;
+	                    if (copy.to instanceof OAssign.PartnerLinkRef) {
+	                        if (((OAssign.PartnerLinkRef) copy.to).partnerLink.getName().equals(plink))
+	                            return true;
+	                    }
+                	}
+                }
+            }
+        }
+        return false;
+    }
+
+    public Definition[] getWsdlDefinitions() {
+        Definition[] result = new Definition[_wsdlRegistry.getDefinitions().length];
+        for (int m = 0; m < _wsdlRegistry.getDefinitions().length; m++) {
+            Definition4BPEL definition4BPEL = _wsdlRegistry.getDefinitions()[m];
+            result[m] = definition4BPEL.getDefinition();
+        }
+        return result;
+    }
+
+    private OElementVarType resolveElementType(QName faultVariableElementType) {
+        OElementVarType type = _oprocess.elementTypes.get(faultVariableElementType);
+        if (type == null) {
+            type = new OElementVarType(_oprocess, faultVariableElementType);
+            _oprocess.elementTypes.put(faultVariableElementType, type);
+        }
+        return type;
+    }
+
+    private ActivityGenerator findActivityGen(Activity source) {
+
+        Class actClass = source.getClass();
+
+        for (Map.Entry<Class, ActivityGenerator> me : _actGenerators.entrySet()) {
+            Class<?> cls = me.getKey();
+            if (cls.isAssignableFrom(actClass)) {
+                ActivityGenerator gen = me.getValue();
+                gen.setContext(this);
+                return gen;
+            }
+        }
+
+        throw new CompilationException(__cmsgs.errUnknownActivity(actClass.getName()).setSource(source));
+    }
+
+    protected void registerActivityCompiler(Class defClass, ActivityGenerator generator) {
+        if (__log.isDebugEnabled()) {
+            __log.debug("Adding compiler for nodes class \"" + defClass.getName() + " = " + generator);
+        }
+
+        _actGenerators.put(defClass, generator);
+    }
+
+    private ExpressionCompiler findExpLangCompiler(String expLang) {
+        ExpressionCompiler compiler = _expLanguageCompilers.get(expLang);
+        if (compiler == null) {
+            throw new CompilationException(__cmsgs.errUnknownExpressionLanguage(expLang));
+        }
+        return compiler;
+    }
+
+    private String getExpressionLanguage(Expression exp) {
+        String expLang = exp.getExpressionLanguage();
+
+        if (expLang == null)
+            expLang = _processDef.getExpressionLanguage();
+        if (expLang == null)
+            expLang = getDefaultExpressionLanguage();
+        return expLang;
+    }
+
+    protected abstract String getDefaultExpressionLanguage();
+
+    protected void registerExpressionLanguage(String expLangUri, ExpressionCompiler expressionCompiler) {
+        _expLanguageCompilers.put(expLangUri, expressionCompiler);
+    }
+
+    protected void registerExpressionLanguage(String expLangUri, String classname) {
+        try {
+            Class cls = Class.forName(classname);
+            registerExpressionLanguage(expLangUri, (ExpressionCompiler) cls.newInstance());
+        } catch (ClassNotFoundException e) {
+            throw new RuntimeException(e);
+        } catch (InstantiationException e) {
+            throw new RuntimeException(e);
+        } catch (IllegalAccessException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public void setExtensionValidators(Map<QName, ExtensionValidator> extensionValidators) {
+    	_extensionValidators = extensionValidators;
+    }
+    
+    public boolean isExtensionDeclared(String namespace) {
+    	return _declaredExtensionNS.contains(namespace);
+    }
+
+    public ExtensionValidator getExtensionValidator(QName extensionElementName) {
+    	return _extensionValidators.get(extensionElementName);
+    }
+    
+    public List<OActivity> getActivityStack() {
+        ArrayList<OActivity> rval = new ArrayList<OActivity>(_structureStack._stack);
+        Collections.reverse(rval);
+        return rval;
+    }
+
+    /**
+     * Compile external variable declaration.
+     * @param src variable object
+     * @return compiled {@link OExtVar} representation. 
+     */
+    private OExtVar compileExtVar(Variable src) {
+        if (!src.isExternal())
+            return null;
+
+        OExtVar oextvar = new OExtVar(_oprocess);
+        oextvar.externalVariableId = src.getExternalId();
+        oextvar.debugInfo = createDebugInfo(src, null);
+
+        if (src.getExternalId() == null)
+        	throw new CompilationException(__cmsgs.errMustSpecifyExternalVariableId(src.getName()));
+        	
+        if (src.getRelated() == null)
+        	throw new CompilationException(__cmsgs.errMustSpecifyRelatedVariable(src.getName()));
+        oextvar.related = resolveVariable(src.getRelated());
+        
+        return oextvar;
+    }
+
+    private static class StructureStack {
+        private Stack<OActivity> _stack = new Stack<OActivity>();
+
+        private Map<OActivity, BpelObject> _srcMap = new HashMap<OActivity, BpelObject>();
+
+        public void push(OActivity act, BpelObject src) {
+            _stack.push(act);
+            _srcMap.put(act, src);
+        }
+
+        public BpelObject topSource() {
+            return _srcMap.get(topActivity());
+        }
+
+        public OScope topScope() {
+            List<OScope> scopeStack = scopeStack();
+            return scopeStack.isEmpty() ? null : scopeStack.get(scopeStack.size() - 1);
+        }
+
+        public OScope rootScope() {
+            for (OActivity oActivity : _stack)
+                if (oActivity instanceof OScope)
+                    return (OScope) oActivity;
+            return null;
+        }
+
+        public OActivity pop() {
+            return _stack.pop();
+        }
+
+        public void clear() {
+            _stack.clear();
+        }
+
+        public int size() {
+            return _stack.size();
+        }
+
+        public Iterator<OScope> oscopeIterator() {
+            List<OScope> scopeStack = scopeStack();
+            Collections.reverse(scopeStack);
+            return scopeStack.iterator();
+        }
+
+        private List<OScope> scopeStack() {
+            ArrayList<OScope> newList = new ArrayList<OScope>();
+            CollectionsX.filter(newList, _stack.iterator(), OScope.class);
+            return newList;
+        }
+
+        public OActivity topActivity() {
+            return _stack.isEmpty() ? null : _stack.peek();
+        }
+
+        public Iterator<OActivity> iterator() {
+            ArrayList<OActivity> rval = new ArrayList<OActivity>(_stack);
+            Collections.reverse(rval);
+            return rval.iterator();
+        }
+    }
+}

Added: ode/branches/rtver/bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/v2/CompensateGenerator.java
URL: http://svn.apache.org/viewvc/ode/branches/rtver/bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/v2/CompensateGenerator.java?rev=682542&view=auto
==============================================================================
--- ode/branches/rtver/bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/v2/CompensateGenerator.java (added)
+++ ode/branches/rtver/bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/v2/CompensateGenerator.java Mon Aug  4 16:54:02 2008
@@ -0,0 +1,37 @@
+/*
+ * 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.compiler.v2;
+
+import org.apache.ode.bpel.compiler.bom.Activity;
+import org.apache.ode.bpel.rtrep.v2.OActivity;
+import org.apache.ode.bpel.rtrep.v2.OCompensate;
+
+
+/**
+ * Generates code for the <code>&lt;compensate&gt;</code> activities.
+ */
+class CompensateGenerator extends DefaultActivityGenerator {
+    
+    public void compile(OActivity output, Activity src) {
+    }
+
+    public OActivity newInstance(Activity src) {
+        return new OCompensate(_context.getOProcess(), _context.getCurrent());
+    }
+}

Added: ode/branches/rtver/bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/v2/CompensateGeneratorMessages.java
URL: http://svn.apache.org/viewvc/ode/branches/rtver/bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/v2/CompensateGeneratorMessages.java?rev=682542&view=auto
==============================================================================
--- ode/branches/rtver/bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/v2/CompensateGeneratorMessages.java (added)
+++ ode/branches/rtver/bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/v2/CompensateGeneratorMessages.java Mon Aug  4 16:54:02 2008
@@ -0,0 +1,35 @@
+/*
+ * 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.compiler.v2;
+
+import org.apache.ode.bpel.compiler.api.CompilationMessage;
+import org.apache.ode.bpel.compiler.api.CompilationMessageBundle;
+
+/**
+ * @author Alex Boisvert <boisvert at apache dot org>
+ */
+public class CompensateGeneratorMessages extends CompilationMessageBundle {
+
+    /** The scope to compensate is unspecified. */
+    public CompilationMessage errScopeToCompensateUnspecfied() {
+        return this.formatCompilationMessage("The scope to compensate is unspecified.");
+    }
+
+}

Added: ode/branches/rtver/bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/v2/CompensateScopeGenerator.java
URL: http://svn.apache.org/viewvc/ode/branches/rtver/bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/v2/CompensateScopeGenerator.java?rev=682542&view=auto
==============================================================================
--- ode/branches/rtver/bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/v2/CompensateScopeGenerator.java (added)
+++ ode/branches/rtver/bpel-compiler/src/main/java/org/apache/ode/bpel/compiler/v2/CompensateScopeGenerator.java Mon Aug  4 16:54:02 2008
@@ -0,0 +1,47 @@
+/*
+ * 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.compiler.v2;
+
+import org.apache.ode.bpel.compiler.api.CompilationException;
+import org.apache.ode.bpel.compiler.bom.Activity;
+import org.apache.ode.bpel.compiler.bom.CompensateScopeActivity;
+import org.apache.ode.bpel.rtrep.v2.OActivity;
+import org.apache.ode.bpel.rtrep.v2.OCompensate;
+import org.apache.ode.utils.msg.MessageBundle;
+
+
+/**
+ * Generates code for the <code>&lt;compensateScope&gt;</code> activities.
+ */
+class CompensateScopeGenerator extends DefaultActivityGenerator {
+    private static final CompensateGeneratorMessages __cmsgs = MessageBundle.getMessages(CompensateGeneratorMessages.class);
+    
+    public void compile(OActivity output, Activity src) {
+        CompensateScopeActivity compSrc = (CompensateScopeActivity) src;
+        if (compSrc.getScopeToCompensate() == null)
+            throw new CompilationException(__cmsgs.errScopeToCompensateUnspecfied());
+        ((OCompensate)output).compensatedScope = _context.resolveCompensatableScope(compSrc.getScopeToCompensate());
+    }
+
+    public OActivity newInstance(Activity src) {
+        return new OCompensate(_context.getOProcess(), _context.getCurrent());
+    }
+}
+