| /* |
| * 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; |
| |
| import javax.xml.XMLConstants; |
| 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.bom.Activity; |
| import org.apache.ode.bpel.compiler.bom.ForEachActivity; |
| import org.apache.ode.bpel.compiler.bom.Scope; |
| import org.apache.ode.bpel.o.OActivity; |
| import org.apache.ode.bpel.o.OForEach; |
| import org.apache.ode.bpel.o.OScope; |
| import org.apache.ode.bpel.o.OXsdTypeVarType; |
| import org.apache.ode.utils.msg.MessageBundle; |
| import org.apache.ode.utils.Namespaces; |
| |
| /** |
| * Generates code for <code><forEach></code> activities. |
| */ |
| public class ForEachGenerator extends DefaultActivityGenerator { |
| |
| private static final Log __log = LogFactory.getLog(AssignGenerator.class); |
| private static final ForEachGeneratorMessages __cmsgs = MessageBundle.getMessages(ForEachGeneratorMessages.class); |
| |
| public OActivity newInstance(Activity src) { |
| return new OForEach(_context.getOProcess(), _context.getCurrent()); |
| } |
| |
| public void compile(OActivity output, Activity src) { |
| if (__log.isDebugEnabled()) __log.debug("Compiling ForEach activity."); |
| OForEach oforEach = (OForEach) output; |
| ForEachActivity forEach = (ForEachActivity) src; |
| oforEach.parallel = forEach.isParallel(); |
| oforEach.startCounterValue = _context.compileExpr(forEach.getStartCounter()); |
| oforEach.finalCounterValue = _context.compileExpr(forEach.getFinalCounter()); |
| if (forEach.getCompletionCondition() != null) { |
| oforEach.completionCondition = |
| new OForEach.CompletionCondition(_context.getOProcess()); |
| oforEach.completionCondition.successfulBranchesOnly |
| = forEach.getCompletionCondition().isSuccessfulBranchesOnly(); |
| oforEach.completionCondition.branchCount = _context.compileExpr(forEach.getCompletionCondition()); |
| } |
| |
| // ForEach 'adds' a counter variable in inner scope |
| if (__log.isDebugEnabled()) __log.debug("Adding the forEach counter variable to inner scope."); |
| Scope s = forEach.getChild().getScope(); |
| // Checking if a variable using the same name as our counter is already defined. |
| // The spec requires a static analysis error to be thrown in that case. |
| if (s.getVariableDecl(forEach.getCounterName()) != null) |
| throw new CompilationException(__cmsgs.errForEachAndScopeVariableRedundant(forEach.getCounterName()).setSource(src)); |
| |
| OXsdTypeVarType counterType = new OXsdTypeVarType(oforEach.getOwner()); |
| counterType.simple = true; |
| counterType.xsdType = new QName(Namespaces.XML_SCHEMA, "int"); |
| OScope.Variable counterVar = new OScope.Variable(oforEach.getOwner(), counterType); |
| counterVar.name = forEach.getCounterName(); |
| |
| if (__log.isDebugEnabled()) __log.debug("Compiling forEach inner scope."); |
| oforEach.innerScope = _context.compileSLC(forEach.getChild(), new OScope.Variable[]{counterVar}); |
| |
| // oforEach.innerScope.addLocalVariable(counterVar); |
| oforEach.counterVariable = counterVar; |
| } |
| |
| } |