/*****************************************************************
* 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.cayenne.remote;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import org.apache.cayenne.CayenneContext;
import org.apache.cayenne.CayenneRuntimeException;
import org.apache.cayenne.MockPersistentObject;
import org.apache.cayenne.ObjectId;
import org.apache.cayenne.PersistenceState;
import org.apache.cayenne.Persistent;
import org.apache.cayenne.QueryResponse;
import org.apache.cayenne.event.CayenneEvent;
import org.apache.cayenne.event.DefaultEventManager;
import org.apache.cayenne.event.EventBridge;
import org.apache.cayenne.event.MockEventManager;
import org.apache.cayenne.map.DataMap;
import org.apache.cayenne.map.EntityResolver;
import org.apache.cayenne.map.ObjEntity;
import org.apache.cayenne.query.SelectQuery;
import org.apache.cayenne.unit.CayenneCase;
import org.apache.cayenne.util.GenericResponse;
public class ClientChannelTest extends CayenneCase {
public void testOnQuerySelect() {
final MockPersistentObject o1 = new MockPersistentObject();
ObjectId oid1 = new ObjectId("test_entity");
o1.setObjectId(oid1);
MockClientConnection connection = new MockClientConnection(new GenericResponse(
Arrays.asList(o1)));
ClientChannel channel = new ClientChannel(
connection,
false,
new MockEventManager(),
false);
CayenneContext context = new CayenneContext(channel);
ObjEntity entity = new ObjEntity("test_entity");
entity.setClassName(MockPersistentObject.class.getName());
DataMap dataMap = new DataMap("test");
dataMap.addObjEntity(entity);
Collection<DataMap> entities = Collections.singleton(dataMap);
context.setEntityResolver(new EntityResolver(entities));
QueryResponse response = channel.onQuery(context, new SelectQuery("test_entity"));
assertNotNull(response);
List<?> list = response.firstList();
assertNotNull(list);
assertEquals(1, list.size());
Persistent o1_1 = (Persistent) list.get(0);
assertEquals(o1.getObjectId(), o1_1.getObjectId());
// ObjectContext must be injected
assertEquals(context, o1_1.getObjectContext());
assertSame(o1_1, context.getGraphManager().getNode(oid1));
}
public void testOnQuerySelectOverrideCached() {
ObjEntity entity = new ObjEntity("test_entity");
entity.setClassName(MockPersistentObject.class.getName());
DataMap dataMap = new DataMap("test");
dataMap.addObjEntity(entity);
Collection<DataMap> entities = Collections.singleton(dataMap);
EntityResolver resolver = new EntityResolver(entities);
CayenneContext context = new CayenneContext();
context.setEntityResolver(resolver);
ObjectId oid = new ObjectId("test_entity", "x", "y");
MockPersistentObject o1 = new MockPersistentObject(oid);
context.getGraphManager().registerNode(oid, o1);
assertSame(o1, context.getGraphManager().getNode(oid));
// another object with the same GID ... we must merge it with cached and return
// cached object instead of the one fetched
MockPersistentObject o2 = new MockPersistentObject(oid);
MockClientConnection connection = new MockClientConnection(new GenericResponse(
Arrays.asList(o2)));
ClientChannel channel = new ClientChannel(
connection,
false,
new MockEventManager(),
false);
context.setChannel(channel);
QueryResponse response = channel.onQuery(context, new SelectQuery("test_entity"));
assertNotNull(response);
List<?> list = response.firstList();
assertNotNull(list);
assertEquals(1, list.size());
assertTrue("Expected cached object, got: " + list, list.contains(o1));
assertSame(o1, context.getGraphManager().getNode(oid));
}
public void testOnQuerySelectOverrideModifiedCached() {
ObjEntity entity = new ObjEntity("test_entity");
entity.setClassName(MockPersistentObject.class.getName());
DataMap dataMap = new DataMap("test");
dataMap.addObjEntity(entity);
Collection<DataMap> entities = Collections.singleton(dataMap);
EntityResolver resolver = new EntityResolver(entities);
CayenneContext context = new CayenneContext();
context.setEntityResolver(resolver);
ObjectId oid = new ObjectId("test_entity", "x", "y");
MockPersistentObject o1 = new MockPersistentObject(oid);
o1.setPersistenceState(PersistenceState.MODIFIED);
context.getGraphManager().registerNode(oid, o1);
assertSame(o1, context.getGraphManager().getNode(oid));
// another object with the same GID ... we must merge it with cached and return
// cached object instead of the one fetched
MockPersistentObject o2 = new MockPersistentObject(oid);
MockClientConnection connection = new MockClientConnection(new GenericResponse(
Arrays.asList(o2)));
ClientChannel channel = new ClientChannel(connection,
false,
new MockEventManager(),
false);
context.setChannel(channel);
QueryResponse response = channel.onQuery(context, new SelectQuery("test_entity"));
assertNotNull(response);
assertEquals(1, response.size());
List<?> list = response.firstList();
assertNotNull(list);
assertEquals(1, list.size());
assertTrue("Expected cached object, got: " + list, list.contains(o1));
assertSame(o1, context.getGraphManager().getNode(oid));
}
public void testEventBridgeFailure() throws Exception {
MockClientConnection connection = new MockClientConnection() {
@Override
public EventBridge getServerEventBridge() throws CayenneRuntimeException {
return new EventBridge(Collections.EMPTY_LIST, "ext") {
@Override
protected void sendExternalEvent(CayenneEvent localEvent)
throws Exception {
}
@Override
protected void shutdownExternal() throws Exception {
}
@Override
protected void startupExternal() throws Exception {
// intentionally throw an exception
throw new CayenneRuntimeException("Test failure");
}
};
}
};
// default constructor must fail
try {
new ClientChannel(connection,
false,
new MockEventManager(),
false);
fail("Channel didn't throw on broken EventBridge");
}
catch (CayenneRuntimeException e) {
// expected
}
try {
new ClientChannel(connection, false, new DefaultEventManager(2), false);
fail("Channel didn't throw on broken EventBridge");
}
catch (CayenneRuntimeException e) {
// expected
}
try {
new ClientChannel(connection, false, new DefaultEventManager(2), true);
}
catch (CayenneRuntimeException e) {
fail("Channel threw on broken EventBridge");
}
}
}