diff options
Diffstat (limited to 'das-java/contrib/ldap/das.ldap/src/main/java/org/apache/tuscany/das/ldap/emf/update/EDataGraphUpdaterHelper.java')
| -rw-r--r-- | das-java/contrib/ldap/das.ldap/src/main/java/org/apache/tuscany/das/ldap/emf/update/EDataGraphUpdaterHelper.java | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/das-java/contrib/ldap/das.ldap/src/main/java/org/apache/tuscany/das/ldap/emf/update/EDataGraphUpdaterHelper.java b/das-java/contrib/ldap/das.ldap/src/main/java/org/apache/tuscany/das/ldap/emf/update/EDataGraphUpdaterHelper.java new file mode 100644 index 0000000000..a53b5547fb --- /dev/null +++ b/das-java/contrib/ldap/das.ldap/src/main/java/org/apache/tuscany/das/ldap/emf/update/EDataGraphUpdaterHelper.java @@ -0,0 +1,228 @@ +/* + * 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.tuscany.das.ldap.emf.update; + +import java.util.Map; + +import javax.naming.NamingException; +import javax.naming.directory.Attribute; +import javax.naming.directory.BasicAttribute; +import javax.naming.directory.DirContext; +import javax.naming.directory.ModificationItem; +import javax.naming.ldap.LdapContext; + +import org.apache.tuscany.das.ldap.emf.create.EDataGraphCreatorHelper; +import org.apache.tuscany.das.ldap.emf.create.EDataObjectCreatorHelper; +import org.apache.tuscany.das.ldap.util.QualifiedNameNormalizer; +import org.apache.tuscany.das.ldap.util.SimpleTypeNamespaceQualifier; +import org.eclipse.emf.common.util.EList; +import org.eclipse.emf.common.util.EMap; +import org.eclipse.emf.ecore.EAttribute; +import org.eclipse.emf.ecore.EClass; +import org.eclipse.emf.ecore.EObject; +import org.eclipse.emf.ecore.EStructuralFeature; +import org.eclipse.emf.ecore.change.FeatureChange; +import org.eclipse.emf.ecore.sdo.EChangeSummary; +import org.eclipse.emf.ecore.sdo.EDataObject; + + +public class EDataGraphUpdaterHelper +{ + public static void processDestroyedDataObjects( + EChangeSummary eChangeSummary, + LdapContext containerContext, + Map<EDataObject, String> dataObjectToRelativeDNCache) + throws NamingException + { + EList<EObject> destroyedObjects = + eChangeSummary. + getObjectsToAttach(); + + for (EObject destroyedObject : destroyedObjects) + { + String destroyedObjectRelativeDN = dataObjectToRelativeDNCache.get(destroyedObject); + containerContext.destroySubcontext(destroyedObjectRelativeDN); + dataObjectToRelativeDNCache.remove(destroyedObject); + } + } + + public static void processCreatedDataObjects( + EChangeSummary eChangeSummary, + LdapContext rootContext, + Map<EDataObject, String> dataObjectToRelativeDNCache ) + throws NamingException + { + EList<EObject> createdObjects = + eChangeSummary. + getObjectsToDetach(); + + EDataGraphCreatorHelper.createChildren( + createdObjects, + rootContext, + dataObjectToRelativeDNCache); + } + + public static void processChangedDataObjects( + EChangeSummary eChangeSummary, + LdapContext containerContext, + Map<EDataObject, String> dataObjectToRelativeDNCache ) + throws NamingException + { + EMap<EObject, EList<FeatureChange>> objectChanges = + eChangeSummary.getObjectChanges(); + + for (EObject changedDataObject : objectChanges.keySet()) + { + EList<FeatureChange> featureChanges = + objectChanges.get(changedDataObject); + + ModificationItem[] modificationItems = + new ModificationItem[featureChanges.size()]; + + EClass changedDataObjectEClass = + changedDataObject.eClass(); + + String namespaceURI = + changedDataObjectEClass. + getEPackage(). + getNsURI(); + + for (int i = 0; i < featureChanges.size(); i++) + { + FeatureChange featureChange = + featureChanges.get(i); + + EStructuralFeature eStructuralFeature = + featureChange.getFeature(); + + if (eStructuralFeature instanceof EAttribute) + { + //TODO Note that we are not checking multiplicity many on EAttributes + String qualifiedEAttributeName = + SimpleTypeNamespaceQualifier. + qualify( + namespaceURI, + changedDataObjectEClass.getName(), + eStructuralFeature.getName() ); + + String normalizedEAttributeName = + QualifiedNameNormalizer. + normalize(qualifiedEAttributeName); + + //TODO PUt processEAttribute in a more generic class + Attribute attribute = + EDataObjectCreatorHelper.processEAttribute( + (EAttribute)eStructuralFeature, + namespaceURI, + changedDataObjectEClass, + (EDataObject) changedDataObject); + + modificationItems[i] = + new ModificationItem( + DirContext.REPLACE_ATTRIBUTE, + attribute); + } + else + { + String qualifiedEReferenceName = + SimpleTypeNamespaceQualifier. + qualify( + namespaceURI, + changedDataObjectEClass.getName(), + eStructuralFeature.getName() ); + + String normalizedEReferenceName = + QualifiedNameNormalizer. + normalize(qualifiedEReferenceName); + + Attribute attribute = + new BasicAttribute(normalizedEReferenceName); + + if (eStructuralFeature.isMany()) + { + EList<EDataObject> referenceList = + (EList<EDataObject>) changedDataObject.eGet(eStructuralFeature); + + if (referenceList.size() > 0 && referenceList!=null) + { + for (EDataObject eDataObject : referenceList) + { + attribute.add( + eDataObject. + eGet( + eDataObject. + eClass(). + getEIDAttribute())); + + modificationItems[i] = + new ModificationItem( + DirContext.REPLACE_ATTRIBUTE, + attribute); + } + } + else + { + modificationItems[i] = + new ModificationItem( + DirContext.REMOVE_ATTRIBUTE, + attribute); + } + } + else + { + EDataObject eDataObject = + (EDataObject) + changedDataObject. + eGet(eStructuralFeature); + + if (eDataObject != null) + { + attribute.add( + eDataObject. + eGet( + eDataObject. + eClass(). + getEIDAttribute())); + + modificationItems[i] = + new ModificationItem( + DirContext.REPLACE_ATTRIBUTE, + attribute); + } + else + { + modificationItems[i] = + new ModificationItem( + DirContext.REMOVE_ATTRIBUTE, + attribute); + } + } + } + } + String relativeDN = + dataObjectToRelativeDNCache. + get(changedDataObject); + + containerContext.modifyAttributes( + relativeDN, + modificationItems); + } + } +}
\ No newline at end of file |