/*
* 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.isis.runtimes.dflt.objectstores.xml.internal.commands;
import java.util.List;
import org.apache.log4j.Logger;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.facets.object.encodeable.EncodableFacet;
import org.apache.isis.core.metamodel.spec.ObjectSpecification;
import org.apache.isis.core.metamodel.spec.feature.ObjectAssociation;
import org.apache.isis.runtimes.dflt.objectstores.xml.internal.data.DataManager;
import org.apache.isis.runtimes.dflt.objectstores.xml.internal.data.ObjectData;
import org.apache.isis.runtimes.dflt.objectstores.xml.internal.version.FileVersion;
import org.apache.isis.runtimes.dflt.runtime.persistence.objectstore.transaction.PersistenceCommandAbstract;
import org.apache.isis.runtimes.dflt.runtime.persistence.oidgenerator.simple.SerialOid;
abstract class AbstractXmlPersistenceCommand extends PersistenceCommandAbstract {
private static final Logger LOG = Logger.getLogger(AbstractXmlPersistenceCommand.class);
private final DataManager dataManager;
public AbstractXmlPersistenceCommand(final ObjectAdapter adapter, final DataManager dataManager) {
super(adapter);
this.dataManager = dataManager;
}
protected DataManager getDataManager() {
return dataManager;
}
protected ObjectData createObjectData(final ObjectAdapter adapter, final boolean ensurePersistent) {
if (LOG.isDebugEnabled()) {
LOG.debug("compiling object data for " + adapter);
}
final ObjectSpecification adapterSpec = adapter.getSpecification();
final ObjectData data = new ObjectData(adapterSpec, (SerialOid) adapter.getOid(), (FileVersion) adapter.getVersion());
final List<ObjectAssociation> associations = adapterSpec.getAssociations();
for (final ObjectAssociation association : associations) {
if (association.isNotPersisted()) {
continue;
}
final ObjectAdapter associatedObject = association.get(adapter);
final boolean isEmpty = association.isEmpty(adapter);
final String associationId = association.getId();
if (association.isOneToManyAssociation()) {
saveCollection(associationId, data, associatedObject, ensurePersistent);
} else if (association.getSpecification().isEncodeable()) {
saveEncoded(data, associationId, associatedObject, isEmpty);
} else if (association.isOneToOneAssociation()) {
saveReference(data, associationId, associatedObject, ensurePersistent);
}
}
return data;
}
private void saveReference(final ObjectData data, final String associationId, final ObjectAdapter associatedObject, final boolean ensurePersistent) {
data.addAssociation(associatedObject, associationId, ensurePersistent);
}
private void saveCollection(final String associationId, final ObjectData data, final ObjectAdapter associatedObject, final boolean ensurePersistent) {
data.addInternalCollection(associatedObject, associationId, ensurePersistent);
}
private void saveEncoded(final ObjectData data, final String associationId, final ObjectAdapter associatedObject, final boolean isEmpty) {
if (associatedObject == null || isEmpty) {
data.saveValue(associationId, isEmpty, null);
} else {
final EncodableFacet facet = associatedObject.getSpecification().getFacet(EncodableFacet.class);
final String encodedValue = facet.toEncodedString(associatedObject);
data.saveValue(associationId, isEmpty, encodedValue);
}
}
}