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* 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
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*
* 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
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* KIND, either express or implied. See the License for the
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package org.apache.cayenne.remote;
import java.util.ArrayList;
import java.util.List;
import org.apache.cayenne.CayenneContext;
import org.apache.cayenne.ObjectContext;
import org.apache.cayenne.ObjectId;
import org.apache.cayenne.access.ClientServerChannel;
import org.apache.cayenne.graph.GraphChangeHandler;
import org.apache.cayenne.graph.GraphDiff;
import org.apache.cayenne.map.LifecycleEvent;
import org.apache.cayenne.reflect.LifecycleCallbackRegistry;
import org.apache.cayenne.remote.service.LocalConnection;
import org.apache.cayenne.testdo.mt.ClientMtTable1;
import org.apache.cayenne.testdo.mt.ClientMtTable2;
import org.apache.cayenne.testdo.mt.MtTable1;
import org.apache.cayenne.unit.AccessStack;
import org.apache.cayenne.unit.CayenneCase;
import org.apache.cayenne.unit.CayenneResources;
public class ClientChannelServerDiffsTest extends CayenneCase {
@Override
protected AccessStack buildAccessStack() {
return CayenneResources.getResources().getAccessStack(MULTI_TIER_ACCESS_STACK);
}
public void testReturnIdDiff() {
final Object[] ids = new Object[2];
final GraphChangeHandler diffReader = new NoopGraphChangeHandler() {
@Override
public void nodeIdChanged(Object oldId, Object newId) {
ids[0] = oldId;
ids[1] = newId;
}
};
ClientServerChannel csChannel = new ClientServerChannel(getDomain());
ClientChannel channel = new ClientChannel(new LocalConnection(csChannel)) {
@Override
public GraphDiff onSync(
ObjectContext originatingContext,
GraphDiff changes,
int syncType) {
GraphDiff serverDiff = super
.onSync(originatingContext, changes, syncType);
assertNotNull(serverDiff);
serverDiff.apply(diffReader);
return serverDiff;
}
};
CayenneContext context = new CayenneContext(channel);
context.newObject(ClientMtTable1.class);
context.commitChanges();
assertTrue(ids[0] instanceof ObjectId);
assertTrue(((ObjectId) ids[0]).isTemporary());
assertTrue(ids[1] instanceof ObjectId);
assertFalse(((ObjectId) ids[1]).isTemporary());
}
public void testReturnDiffInPrePersist() {
final List<GenericDiff> diffs = new ArrayList<GenericDiff>();
final NoopGraphChangeHandler diffReader = new NoopGraphChangeHandler() {
@Override
public void nodePropertyChanged(
Object nodeId,
String property,
Object oldValue,
Object newValue) {
super.nodePropertyChanged(nodeId, property, oldValue, newValue);
diffs
.add(new GenericDiff(
(ObjectId) nodeId,
property,
oldValue,
newValue));
}
};
LifecycleCallbackRegistry registry = getDomain()
.getEntityResolver()
.getCallbackRegistry();
try {
registry.addListener(
LifecycleEvent.POST_ADD,
MtTable1.class,
new ClientChannelServerDiffsListener1(),
"prePersist");
ClientServerChannel csChannel = new ClientServerChannel(getDomain());
ClientChannel channel = new ClientChannel(new LocalConnection(csChannel)) {
@Override
public GraphDiff onSync(
ObjectContext originatingContext,
GraphDiff changes,
int syncType) {
GraphDiff serverDiff = super.onSync(
originatingContext,
changes,
syncType);
assertNotNull(serverDiff);
serverDiff.apply(diffReader);
return serverDiff;
}
};
CayenneContext context = new CayenneContext(channel);
ClientMtTable1 o = context.newObject(ClientMtTable1.class);
ObjectId tempId = o.getObjectId();
o.setServerAttribute1("YY");
context.commitChanges();
assertEquals(2, diffReader.size);
assertEquals(1, diffs.size());
assertEquals(tempId, diffs.get(0).sourceId);
assertEquals(ClientMtTable1.GLOBAL_ATTRIBUTE1_PROPERTY, diffs.get(0).property);
assertNull(diffs.get(0).oldValue);
assertEquals("XXX", diffs.get(0).newValue);
}
finally {
registry.clear();
}
}
public void testReturnDiffClientArcChanges() {
final NoopGraphChangeHandler diffReader = new NoopGraphChangeHandler();
ClientServerChannel csChannel = new ClientServerChannel(getDomain());
ClientChannel channel = new ClientChannel(new LocalConnection(csChannel)) {
@Override
public GraphDiff onSync(
ObjectContext originatingContext,
GraphDiff changes,
int syncType) {
GraphDiff serverDiff = super
.onSync(originatingContext, changes, syncType);
assertNotNull(serverDiff);
serverDiff.apply(diffReader);
return serverDiff;
}
};
CayenneContext context = new CayenneContext(channel);
ClientMtTable1 o = context.newObject(ClientMtTable1.class);
ClientMtTable2 o2 = context.newObject(ClientMtTable2.class);
o.addToTable2Array(o2);
context.commitChanges();
assertEquals(2, diffReader.size);
diffReader.reset();
ClientMtTable2 o3 = context.newObject(ClientMtTable2.class);
o3.setTable1(o);
context.commitChanges();
assertEquals(1, diffReader.size);
}
class NoopGraphChangeHandler implements GraphChangeHandler {
int size;
void reset() {
size = 0;
}
public void nodePropertyChanged(
Object nodeId,
String property,
Object oldValue,
Object newValue) {
size++;
}
public void arcCreated(Object nodeId, Object targetNodeId, Object arcId) {
size++;
}
public void arcDeleted(Object nodeId, Object targetNodeId, Object arcId) {
size++;
}
public void nodeCreated(Object nodeId) {
size++;
}
public void nodeIdChanged(Object nodeId, Object newId) {
size++;
}
public void nodeRemoved(Object nodeId) {
size++;
}
}
class GenericDiff {
private String property;
private Object oldValue;
private Object newValue;
private ObjectId sourceId;
private ObjectId targetId;
GenericDiff(ObjectId sourceId, String property, Object oldValue, Object newValue) {
this(sourceId, null, property, oldValue, newValue);
}
GenericDiff(ObjectId sourceId, ObjectId targetId, String property,
Object oldValue, Object newValue) {
this.sourceId = sourceId;
this.targetId = targetId;
this.property = property;
this.oldValue = oldValue;
this.newValue = newValue;
}
}
}