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Diffstat (limited to 'sdo-java/branches/sdo-1.1-incubating/impl/src/main/java/org/apache/tuscany/sdo/impl/DataGraphImpl.java')
| -rw-r--r-- | sdo-java/branches/sdo-1.1-incubating/impl/src/main/java/org/apache/tuscany/sdo/impl/DataGraphImpl.java | 852 |
1 files changed, 852 insertions, 0 deletions
diff --git a/sdo-java/branches/sdo-1.1-incubating/impl/src/main/java/org/apache/tuscany/sdo/impl/DataGraphImpl.java b/sdo-java/branches/sdo-1.1-incubating/impl/src/main/java/org/apache/tuscany/sdo/impl/DataGraphImpl.java new file mode 100644 index 0000000000..d61b7fd05e --- /dev/null +++ b/sdo-java/branches/sdo-1.1-incubating/impl/src/main/java/org/apache/tuscany/sdo/impl/DataGraphImpl.java @@ -0,0 +1,852 @@ +/** + * + * 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.sdo.impl; + + +import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; +import java.io.Externalizable; +import java.io.IOException; +import java.io.ObjectInput; +import java.io.ObjectOutput; +import java.io.Serializable; +import java.util.HashMap; +import java.util.Iterator; +import java.util.List; + +import org.apache.tuscany.sdo.SDOFactory; +import org.apache.tuscany.sdo.SDOPackage; +import org.apache.tuscany.sdo.helper.TypeHelperImpl; +import org.apache.tuscany.sdo.lib.SDOObjectInputStream; +import org.apache.tuscany.sdo.util.DataObjectUtil; +import org.eclipse.emf.common.notify.Adapter; +import org.eclipse.emf.common.notify.Notification; +import org.eclipse.emf.common.notify.NotificationChain; +import org.eclipse.emf.common.notify.Notifier; +import org.eclipse.emf.common.util.URI; +import org.eclipse.emf.ecore.EClass; +import org.eclipse.emf.ecore.EClassifier; +import org.eclipse.emf.ecore.EObject; +import org.eclipse.emf.ecore.EPackage; +import org.eclipse.emf.ecore.InternalEObject; +import org.eclipse.emf.ecore.impl.ENotificationImpl; +import org.eclipse.emf.ecore.impl.EObjectImpl; +import org.eclipse.emf.ecore.resource.Resource; +import org.eclipse.emf.ecore.resource.ResourceSet; +import org.eclipse.emf.ecore.util.BasicExtendedMetaData; +import org.eclipse.emf.ecore.util.ExtendedMetaData; + +import commonj.sdo.ChangeSummary; +import commonj.sdo.DataGraph; +import commonj.sdo.DataObject; +import commonj.sdo.Type; +import commonj.sdo.helper.TypeHelper; + + +/** + * <!-- begin-user-doc --> + * An implementation of the model object '<em><b>EData Graph</b></em>'. + * @extends DataGraph, Adapter, Serializable + * <!-- end-user-doc --> + * <p> + * The following features are implemented: + * <ul> + * <li>{@link org.apache.tuscany.sdo.impl.DataGraphImpl#getResourceSet <em>Resource Set</em>}</li> + * <li>{@link org.apache.tuscany.sdo.impl.DataGraphImpl#getRootResource <em>Root Resource</em>}</li> + * <li>{@link org.apache.tuscany.sdo.impl.DataGraphImpl#getEChangeSummary <em>EChange Summary</em>}</li> + * <li>{@link org.apache.tuscany.sdo.impl.DataGraphImpl#getERootObject <em>ERoot Object</em>}</li> + * </ul> + * </p> + * + * @generated + */ +public class DataGraphImpl extends EObjectImpl implements DataGraph, Adapter, Serializable +{ + /** + * The default value of the '{@link #getResourceSet() <em>Resource Set</em>}' attribute. + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @see #getResourceSet() + * @generated + * @ordered + */ + protected static final ResourceSet RESOURCE_SET_EDEFAULT = null; + + /** + * The cached value of the '{@link #getResourceSet() <em>Resource Set</em>}' attribute. + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @see #getResourceSet() + * @generated + * @ordered + */ + protected ResourceSet resourceSet = RESOURCE_SET_EDEFAULT; + + /** + * The default value of the '{@link #getRootResource() <em>Root Resource</em>}' attribute. + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @see #getRootResource() + * @generated + * @ordered + */ + protected static final Resource ROOT_RESOURCE_EDEFAULT = null; + + /** + * The cached value of the '{@link #getEChangeSummary() <em>EChange Summary</em>}' reference. + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @see #getEChangeSummary() + * @generated + * @ordered + */ + protected ChangeSummary eChangeSummary = null; + + /** + * The cached value of the '{@link #getERootObject() <em>ERoot Object</em>}' reference. + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @see #getERootObject() + * @generated + * @ordered + */ + protected EObject eRootObject = null; + + /** + * The cached extended metadata to wrap the resource set's package registry. + */ + protected ExtendedMetaData extendedMetaData; + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated + */ + protected DataGraphImpl() + { + super(); + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated + */ + protected EClass eStaticClass() + { + return SDOPackage.eINSTANCE.getDataGraph(); + } + + public boolean isAdapterForType(Object type) + { + return type == DataGraph.class; + } + + public void notifyChanged(Notification msg) + { + } + + public Notifier getTarget() + { + return getResourceSet(); + } + + public void setTarget(Notifier newTarget) + { + } + + protected ExtendedMetaData getExtendedMetaData() + { + if (extendedMetaData == null) + { + getResourceSet(); + } + return extendedMetaData; + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated NOT + */ + public ResourceSet getResourceSet() + { + if (resourceSet == null) + { + if (eResource() != null) + { + resourceSet = eResource().getResourceSet(); + } + if (resourceSet == null) + { + resourceSet = createResourceSet(); + } + initializeResourceSet(resourceSet); + } + return resourceSet; + } + + protected ResourceSet createResourceSet() + { + return DataObjectUtil.createResourceSet(); + } + + protected Resource createRootResource() + { + Resource result = resourceSet.createResource(URI.createURI("root.xml")); + result.getContents().clear(); + return result; + } + + protected Resource createChangeSummaryResource() + { + Resource result = resourceSet.createResource(URI.createURI("change-summary.xml")); + result.getContents().clear(); + return result; + } + + protected void initializeResourceSet(ResourceSet resourceSet) + { + if (resourceSet == null) + { + extendedMetaData = null; + } + else + { + extendedMetaData = new BasicExtendedMetaData(resourceSet.getPackageRegistry()); + resourceSet.eAdapters().add(this); + } + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated + */ + public void setResourceSetGen(ResourceSet newResourceSet) + { + ResourceSet oldResourceSet = resourceSet; + resourceSet = newResourceSet; + if (eNotificationRequired()) + eNotify(new ENotificationImpl(this, Notification.SET, SDOPackage.DATA_GRAPH__RESOURCE_SET, oldResourceSet, resourceSet)); + } + + public void setResourceSet(ResourceSet newResourceSet) + { + if (resourceSet != null) + { + resourceSet.eAdapters().remove(this); + } + setResourceSetGen(newResourceSet); + initializeResourceSet(newResourceSet); + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated NOT + */ + public Resource getRootResource() + { + if (eRootObject == null) + { + Resource result = getResourceSet().getResource(URI.createURI("root.xml"), false); + if (result == null) + { + result = createRootResource(); + } + + return result; + } + else + { + return eRootObject.eResource(); + } + } + + public Resource getDataGraphResource() + { + Resource result = eResource(); + if (result == null) + { + result = getResourceSet().createResource(URI.createURI("all.datagraph")); + result.getContents().add(this); + } + return result; + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated + */ + public ChangeSummary getEChangeSummary() + { + return eChangeSummary; + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated + */ + public NotificationChain basicSetEChangeSummary(ChangeSummary newEChangeSummary, NotificationChain msgs) + { + ChangeSummary oldEChangeSummary = eChangeSummary; + eChangeSummary = newEChangeSummary; + if (eNotificationRequired()) + { + ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, SDOPackage.DATA_GRAPH__ECHANGE_SUMMARY, oldEChangeSummary, newEChangeSummary); + if (msgs == null) msgs = notification; else msgs.add(notification); + } + return msgs; + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated + */ + public void setEChangeSummary(ChangeSummary newEChangeSummary) + { + if (newEChangeSummary != eChangeSummary) + { + NotificationChain msgs = null; + if (eChangeSummary != null) + msgs = ((InternalEObject)eChangeSummary).eInverseRemove(this, SDOPackage.CHANGE_SUMMARY__EDATA_GRAPH, ChangeSummary.class, msgs); + if (newEChangeSummary != null) + msgs = ((InternalEObject)newEChangeSummary).eInverseAdd(this, SDOPackage.CHANGE_SUMMARY__EDATA_GRAPH, ChangeSummary.class, msgs); + msgs = basicSetEChangeSummary(newEChangeSummary, msgs); + if (msgs != null) msgs.dispatch(); + } + else if (eNotificationRequired()) + eNotify(new ENotificationImpl(this, Notification.SET, SDOPackage.DATA_GRAPH__ECHANGE_SUMMARY, newEChangeSummary, newEChangeSummary)); + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated + */ + public EObject getERootObject() + { + return eRootObject; + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated + */ + public void setERootObjectGen(EObject newERootObject) + { + EObject oldERootObject = eRootObject; + eRootObject = newERootObject; + if (eNotificationRequired()) + eNotify(new ENotificationImpl(this, Notification.SET, SDOPackage.DATA_GRAPH__EROOT_OBJECT, oldERootObject, eRootObject)); + } + + public void setERootObject(EObject newERootObject) + { + // If there is a resource set already... + // + if (resourceSet != null) + { + // Get the root resource and if there's a root object in it already, clear it. + // Then set the root object and add it to the root resource. + // + List contents = getRootResource().getContents(); + if (eRootObject != null) + { + contents.clear(); + } + setERootObjectGen(newERootObject); + if (newERootObject != null) + { + contents.add(newERootObject); + } + } + else + { + // Set the root object and see if it has a resource we can reuse. + // + setERootObjectGen(newERootObject); + Resource rootResource = newERootObject.eResource(); + if (rootResource != null) + { + // If there is no resource set + // + if (rootResource.getResourceSet() == null) + { + // Demand create one and add this resource to it. + // + getResourceSet().getResources().add(rootResource); + } + else + { + // Reuse the existing resource set. + // + setResourceSet(rootResource.getResourceSet()); + } + } + else + { + // Demand create the resource set and the root resource, and add to it's contents. + // + getResourceSet(); + createRootResource().getContents().add(newERootObject); + } + } + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated NOT + */ + public EClassifier getEClassifier(String namespaceURI, String typeName) + { + ExtendedMetaData extendedMetaData = getExtendedMetaData(); + EPackage ePackage = extendedMetaData.getPackage(namespaceURI); + if (ePackage != null) + { + EClassifier eClassifier = ePackage.getEClassifier(typeName); + if (eClassifier == null) + { + eClassifier = extendedMetaData.getType(ePackage, typeName); + } + return eClassifier; + } + else + { + return null; + } + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated NOT + */ + public Type getType(String namespaceURI, String typeName) + { + return TypeHelper.INSTANCE.getType(namespaceURI, typeName); + //EClassifier eClassifier = getEClassifier(namespaceURI, typeName); + //return eClassifier == null ? null : SDOUtil.getType(eClassifier); + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated + */ + public NotificationChain eInverseAdd(InternalEObject otherEnd, int featureID, Class baseClass, NotificationChain msgs) + { + if (featureID >= 0) + { + switch (eDerivedStructuralFeatureID(featureID, baseClass)) + { + case SDOPackage.DATA_GRAPH__ECHANGE_SUMMARY: + if (eChangeSummary != null) + msgs = ((InternalEObject)eChangeSummary).eInverseRemove(this, SDOPackage.CHANGE_SUMMARY__EDATA_GRAPH, ChangeSummary.class, msgs); + return basicSetEChangeSummary((ChangeSummary)otherEnd, msgs); + default: + return eDynamicInverseAdd(otherEnd, featureID, baseClass, msgs); + } + } + if (eInternalContainer() != null) + msgs = eBasicRemoveFromContainer(msgs); + return eBasicSetContainer(otherEnd, featureID, msgs); + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated + */ + public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, Class baseClass, NotificationChain msgs) + { + if (featureID >= 0) + { + switch (eDerivedStructuralFeatureID(featureID, baseClass)) + { + case SDOPackage.DATA_GRAPH__ECHANGE_SUMMARY: + return basicSetEChangeSummary(null, msgs); + default: + return eDynamicInverseRemove(otherEnd, featureID, baseClass, msgs); + } + } + return eBasicSetContainer(null, featureID, msgs); + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated + */ + public Object eGet(int featureID, boolean resolve, boolean coreType) + { + switch (featureID) + { + case SDOPackage.DATA_GRAPH__RESOURCE_SET: + return getResourceSet(); + case SDOPackage.DATA_GRAPH__ROOT_RESOURCE: + return getRootResource(); + case SDOPackage.DATA_GRAPH__ECHANGE_SUMMARY: + return getEChangeSummary(); + case SDOPackage.DATA_GRAPH__EROOT_OBJECT: + return getERootObject(); + } + return eDynamicGet(featureID, resolve, coreType); + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated + */ + public void eSet(int featureID, Object newValue) + { + switch (featureID) + { + case SDOPackage.DATA_GRAPH__RESOURCE_SET: + setResourceSet((ResourceSet)newValue); + return; + case SDOPackage.DATA_GRAPH__ECHANGE_SUMMARY: + setEChangeSummary((ChangeSummary)newValue); + return; + case SDOPackage.DATA_GRAPH__EROOT_OBJECT: + setERootObject((EObject)newValue); + return; + } + eDynamicSet(featureID, newValue); + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated + */ + public void eUnset(int featureID) + { + switch (featureID) + { + case SDOPackage.DATA_GRAPH__RESOURCE_SET: + setResourceSet(RESOURCE_SET_EDEFAULT); + return; + case SDOPackage.DATA_GRAPH__ECHANGE_SUMMARY: + setEChangeSummary((ChangeSummary)null); + return; + case SDOPackage.DATA_GRAPH__EROOT_OBJECT: + setERootObject((EObject)null); + return; + } + eDynamicUnset(featureID); + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated + */ + public boolean eIsSet(int featureID) + { + switch (featureID) + { + case SDOPackage.DATA_GRAPH__RESOURCE_SET: + return RESOURCE_SET_EDEFAULT == null ? resourceSet != null : !RESOURCE_SET_EDEFAULT.equals(resourceSet); + case SDOPackage.DATA_GRAPH__ROOT_RESOURCE: + return ROOT_RESOURCE_EDEFAULT == null ? getRootResource() != null : !ROOT_RESOURCE_EDEFAULT.equals(getRootResource()); + case SDOPackage.DATA_GRAPH__ECHANGE_SUMMARY: + return eChangeSummary != null; + case SDOPackage.DATA_GRAPH__EROOT_OBJECT: + return eRootObject != null; + } + return eDynamicIsSet(featureID); + } + + public DataObject createEDataObject(Type type) + { + return DataObjectUtil.create(type); + } + + public DataObject getRootObject() + { + return (DataObject)getERootObject(); + } + + public DataObject createRootObject(String namespaceURI, String typeName) + { + Type type = getType(namespaceURI, typeName); + if (type == null) { + throw new IllegalArgumentException( + "createRootObject given invalid parameters: getType("+ + namespaceURI+", "+typeName+") returned null type"); + } + if (getERootObject() != null) { + throw new IllegalStateException( + "createRootObject was called when a root object already exists"); + } + DataObject dataObject = DataObjectUtil.create(type); + setERootObject((EObject)dataObject); + return dataObject; + } + + public DataObject createRootObject(Type type) + { + if (type == null) { + throw new IllegalArgumentException( + "createRootObject must be provided a non-null type"); + } + if (getERootObject() != null) { + throw new IllegalStateException( + "createRootObject was called when a root object already exists"); + } + DataObject dataObject = DataObjectUtil.create(type); + setERootObject((EObject)dataObject); + return dataObject; + } + + public ChangeSummary getChangeSummary() + { + //FB is this the right place to create the resources? + ChangeSummary changeSummary = getEChangeSummary(); + if (changeSummary == null) + { + getRootResource(); + changeSummary = createEChangeSummary(); + setEChangeSummary(changeSummary); + } + + if (((ChangeSummaryImpl)changeSummary).eResource() == null) + { + Resource changeSummaryResource = createChangeSummaryResource(); + changeSummaryResource.getContents().add(changeSummary); + } + + return changeSummary; + } + + protected ChangeSummaryImpl createEChangeSummary() + { + return (ChangeSummaryImpl)SDOFactory.eINSTANCE.createChangeSummary(); + } + + public static class EDataGraphExternalizable implements Externalizable + { + protected DataGraphImpl eDataGraph; + //protected Map writeReplacements = new HashMap(); + + public EDataGraphExternalizable() + { + } + + public EDataGraphExternalizable(DataGraphImpl eDataGraph) + { + this.eDataGraph = eDataGraph; + } + + public void writeExternal(ObjectOutput objectOutput) throws IOException + { + ByteArrayOutputStream byteArrayOutputStream = + new ByteArrayOutputStream() + { + public byte [] toByteArray() + { + return super.toByteArray(); + } + }; + + eDataGraph.getDataGraphResource().save(byteArrayOutputStream, null); + objectOutput.writeInt(byteArrayOutputStream.toByteArray().length); + objectOutput.write(byteArrayOutputStream.toByteArray()); + } + + public void readExternal(ObjectInput objectInput) throws IOException + { + int length = objectInput.readInt(); + byte [] bytes = new byte [length]; + objectInput.readFully(bytes); + + ResourceSet resourceSet = createResourceSet(); + Resource resource = resourceSet.createResource(URI.createURI("all.datagraph")); + + HashMap map = null; + if(objectInput instanceof SDOObjectInputStream) + { + TypeHelperImpl th = (TypeHelperImpl)((SDOObjectInputStream)objectInput).getHelperContext().getTypeHelper(); + map = new HashMap(); + map.put("EXTENDED_META_DATA", th.getExtendedMetaData()); + } + resource.load(new ByteArrayInputStream(bytes), map); + eDataGraph = (DataGraphImpl)resource.getContents().get(0); + } + + protected ResourceSet createResourceSet() + { + return DataObjectUtil.createResourceSet(); + } + + /* + public Object getWriteReplacement(EObject eObject) + { + Object result = writeReplacements.get(eObject); + if (result == null) + { + result = new EDataObjectExternalizable(eDataGraph, eObject); + writeReplacements.put(eObject, result); + } + return result; + } + */ + + protected Object readResolve() + { + return eDataGraph; + } + } + + /* + public static class EDataObjectExternalizable implements Externalizable + { + protected EObject eObject; + protected DataGraphImpl eDataGraph; + + public EDataObjectExternalizable() + { + } + + public EDataObjectExternalizable(DataGraphImpl eDataGraph, EObject eObject) + { + this.eDataGraph = eDataGraph; + this.eObject = eObject; + } + + public void writeExternal(ObjectOutput objectOutput) throws IOException + { + // Write the data object reference too. + String uri = eObject.eResource().getURIFragment(eObject); + objectOutput.writeUTF(uri); + objectOutput.writeObject(eDataGraph.getWriteReplacement()); + } + + public void readExternal(ObjectInput objectInput) throws IOException, ClassNotFoundException + { + String uri = objectInput.readUTF(); + eDataGraph = (DataGraphImpl)objectInput.readObject(); + eObject = eDataGraph.getRootResource().getEObject(uri); + } + + protected Object readResolve() + { + return eObject; + } + } + */ + + protected EDataGraphExternalizable eDataGraphExternalizable; + //protected Adapter modificationTracker; + + public Object getWriteReplacement() + { + if (eDataGraphExternalizable == null) + { + eDataGraphExternalizable = createEDataGraphExternalizable(); + /* + getRootResource().setTrackingModification(true); + modificationTracker = + new AdapterImpl() + { + public void notifyChanged(Notification notification) + { + if (notification.getFeatureID(Resource.class) == Resource.RESOURCE__IS_MODIFIED && notification.getNewBooleanValue()) + { + eDataGraphExternalizable = null; + modificationTracker = null; + ((Resource)target).eAdapters().remove(this); + } + } + }; + getRootResource().eAdapters().add(modificationTracker); + */ + } + return eDataGraphExternalizable; + } + + protected EDataGraphExternalizable createEDataGraphExternalizable() + { + return new EDataGraphExternalizable(this); + } + + /* + public Object getWriteReplacement(EObject eObject) + { + return ((EDataGraphExternalizable)getWriteReplacement()).getWriteReplacement(eObject); + } + */ + + public Object writeReplace() + { + return getWriteReplacement(); + } + + public EObject eObjectForURIFragmentSegment(String uriFragmentSegment) + { + if (uriFragmentSegment.startsWith("@models.")) + { + if (resourceSet != null) + { + int count = Integer.parseInt(uriFragmentSegment.substring(8)); + for (Iterator i = resourceSet.getResources().iterator(); i.hasNext(); ) + { + Resource ePackageResource = (Resource)i.next(); + List resourceContents = ePackageResource.getContents(); + if (resourceContents.size() == 1 && resourceContents.get(0) instanceof EPackage && count-- == 0) + { + return (EObject)resourceContents.get(0); + } + } + } + + return null; + } + else + { + return super.eObjectForURIFragmentSegment(uriFragmentSegment); + } + } + + /** + * <!-- begin-user-doc --> + * <!-- end-user-doc --> + * @generated + */ + public String toString() + { + if (eIsProxy()) return super.toString(); + + StringBuffer result = new StringBuffer(super.toString()); + result.append(" (resourceSet: "); + result.append(resourceSet); + result.append(')'); + return result.toString(); + } + +} //EDataGraphImpl |