/*
* 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.viewer.scimpi.dispatcher.context;
import org.apache.isis.core.commons.debug.DebugString;
import org.apache.isis.core.commons.ensure.Assert;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.adapter.oid.Oid;
import org.apache.isis.core.metamodel.spec.ObjectSpecification;
import org.apache.isis.runtimes.dflt.runtime.memento.Memento;
import org.apache.isis.runtimes.dflt.runtime.system.context.IsisContext;
interface Mapping {
ObjectAdapter getObject();
Oid getOid();
String debug();
void reload();
void update();
}
class TransientObjectMapping implements Mapping {
private final Oid oid;
private Memento memento;
public TransientObjectMapping(final ObjectAdapter adapter) {
oid = adapter.getOid();
Assert.assertTrue("OID is for persistent", oid.isTransient());
Assert.assertTrue("adapter is for persistent", adapter.isTransient());
memento = new Memento(adapter);
}
@Override
public ObjectAdapter getObject() {
return IsisContext.getPersistenceSession().getAdapterManager().getAdapterFor(oid);
}
@Override
public Oid getOid() {
return oid;
}
@Override
public String debug() {
final DebugString debug = new DebugString();
memento.debug(debug);
return debug.toString();
}
@Override
public void reload() {
memento.recreateObject();
}
@Override
public boolean equals(final Object obj) {
if (obj == this) {
return true;
}
if (obj instanceof TransientObjectMapping) {
return ((TransientObjectMapping) obj).oid.equals(oid);
}
return false;
}
@Override
public int hashCode() {
return oid.hashCode();
}
@Override
public void update() {
memento = new Memento(getObject());
}
}
class PersistentObjectMapping implements Mapping {
private final Oid oid;
private final ObjectSpecification spec;
public PersistentObjectMapping(final ObjectAdapter object) {
this.oid = object.getOid();
this.spec = object.getSpecification();
}
@Override
public Oid getOid() {
return oid;
}
@Override
public String debug() {
return oid + " " + spec.getShortIdentifier() + " "
+ IsisContext.getPersistenceSession().getAdapterManager().getAdapterFor(oid);
}
@Override
public ObjectAdapter getObject() {
if (!IsisContext.inTransaction()) {
throw new IllegalStateException(getClass().getSimpleName() + " requires transaction in order to load");
}
return IsisContext.getPersistenceSession().loadObject(oid, spec);
}
@Override
public void reload() {
if (IsisContext.getPersistenceSession().getAdapterManager().getAdapterFor(oid) == null) {
IsisContext.getPersistenceSession().recreateAdapter(oid, spec);
}
}
@Override
public boolean equals(final Object obj) {
if (obj == this) {
return true;
}
if (obj instanceof PersistentObjectMapping) {
final PersistentObjectMapping other = (PersistentObjectMapping) obj;
return oid.equals(other.oid) && spec == other.spec;
}
return false;
}
@Override
public int hashCode() {
int hash = 37;
hash = hash * 17 + oid.hashCode();
hash = hash * 17 + spec.hashCode();
return hash;
}
@Override
public void update() {
}
}