/**
* Copyright 2011 the original author or authors.
*
* Licensed 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.springframework.data.neo4j.support;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.Transaction;
import org.neo4j.graphdb.index.Index;
import org.neo4j.graphdb.index.IndexHits;
import org.neo4j.helpers.collection.IteratorUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.neo4j.annotation.NodeEntity;
import org.springframework.data.neo4j.support.node.Neo4jHelper;
import org.springframework.data.neo4j.support.typerepresentation.IndexingNodeTypeRepresentationStrategy;
import org.springframework.test.context.CleanContextCacheTestExecutionListener;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.TestExecutionListeners;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.support.DependencyInjectionTestExecutionListener;
import org.springframework.test.context.transaction.BeforeTransaction;
import org.springframework.test.context.transaction.TransactionalTestExecutionListener;
import org.springframework.transaction.annotation.Transactional;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath:org/springframework/data/neo4j/support/Neo4jGraphPersistenceTest-context.xml",
"classpath:org/springframework/data/neo4j/support/IndexingTypeRepresentationStrategyOverride-context.xml"})
@TestExecutionListeners({CleanContextCacheTestExecutionListener.class, DependencyInjectionTestExecutionListener.class, TransactionalTestExecutionListener.class})
public class IndexingNodeTypeRepresentationStrategyTest {
@Autowired
private GraphDatabaseService graphDatabaseService;
@Autowired
private IndexingNodeTypeRepresentationStrategy nodeTypeRepresentationStrategy;
private Thing thing;
private SubThing subThing;
@BeforeTransaction
public void cleanDb() {
Neo4jHelper.cleanDb(graphDatabaseService);
}
@Before
public void setUp() throws Exception {
if (thing == null) {
createThingsAndLinks();
}
}
@Test
@Transactional
public void testPostEntityCreation() throws Exception {
Index<Node> typesIndex = graphDatabaseService.index().forNodes(IndexingNodeTypeRepresentationStrategy.INDEX_NAME);
IndexHits<Node> thingHits = typesIndex.get(IndexingNodeTypeRepresentationStrategy.INDEX_KEY, thing.getClass().getName());
assertEquals(set(node(thing), node(subThing)), IteratorUtil.addToCollection((Iterable<Node>)thingHits, new HashSet<Node>()));
IndexHits<Node> subThingHits = typesIndex.get(IndexingNodeTypeRepresentationStrategy.INDEX_KEY, subThing.getClass().getName());
assertEquals(node(subThing), subThingHits.getSingle());
assertEquals(thing.getClass().getName(), node(thing).getProperty(IndexingNodeTypeRepresentationStrategy.TYPE_PROPERTY_NAME));
assertEquals(subThing.getClass().getName(), node(subThing).getProperty(IndexingNodeTypeRepresentationStrategy.TYPE_PROPERTY_NAME));
}
@Test
public void testPreEntityRemoval() throws Exception {
manualCleanDb();
createThingsAndLinks();
Index<Node> typesIndex = graphDatabaseService.index().forNodes(IndexingNodeTypeRepresentationStrategy.INDEX_NAME);
IndexHits<Node> thingHits;
IndexHits<Node> subThingHits;
Transaction tx = graphDatabaseService.beginTx();
try
{
nodeTypeRepresentationStrategy.preEntityRemoval(node(thing));
tx.success();
}
finally
{
tx.finish();
}
thingHits = typesIndex.get(IndexingNodeTypeRepresentationStrategy.INDEX_KEY, thing.getClass().getName());
assertEquals(node(subThing), thingHits.getSingle());
subThingHits = typesIndex.get(IndexingNodeTypeRepresentationStrategy.INDEX_KEY, subThing.getClass().getName());
assertEquals(node(subThing), subThingHits.getSingle());
tx = graphDatabaseService.beginTx();
try {
nodeTypeRepresentationStrategy.preEntityRemoval(node(subThing));
tx.success();
}
finally
{
tx.finish();
}
thingHits = typesIndex.get(IndexingNodeTypeRepresentationStrategy.INDEX_KEY, thing.getClass().getName());
assertNull(thingHits.getSingle());
subThingHits = typesIndex.get(IndexingNodeTypeRepresentationStrategy.INDEX_KEY, subThing.getClass().getName());
assertNull(subThingHits.getSingle());
}
@Test
@Transactional
public void testFindAll() throws Exception {
assertEquals("Did not find all things.",
new HashSet<Thing>(Arrays.asList(subThing, thing)),
IteratorUtil.addToCollection(nodeTypeRepresentationStrategy.findAll(Thing.class), new HashSet<Thing>()));
}
@Test
@Transactional
public void testCount() throws Exception {
assertEquals(2, nodeTypeRepresentationStrategy.count(Thing.class));
}
@Test
@Transactional
public void testGetJavaType() throws Exception {
assertEquals(Thing.class, nodeTypeRepresentationStrategy.getJavaType(node(thing)));
assertEquals(SubThing.class, nodeTypeRepresentationStrategy.getJavaType(node(subThing)));
}
@Test
@Transactional
public void testCreateEntityAndInferType() throws Exception {
Thing newThing = nodeTypeRepresentationStrategy.createEntity(node(thing));
assertEquals(thing, newThing);
}
@Test
@Transactional
public void testCreateEntityAndSpecifyType() throws Exception {
Thing newThing = nodeTypeRepresentationStrategy.createEntity(node(subThing), Thing.class);
assertEquals(subThing, newThing);
}
@Test
@Transactional
public void testProjectEntity() throws Exception {
Unrelated other = nodeTypeRepresentationStrategy.projectEntity(node(thing), Unrelated.class);
assertEquals("thing", other.getName());
}
private static Node node(Thing thing) {
return thing.getPersistentState();
}
private Thing createThingsAndLinks() {
Transaction tx = graphDatabaseService.beginTx();
try {
Node n1 = graphDatabaseService.createNode();
thing = new Thing(n1);
nodeTypeRepresentationStrategy.postEntityCreation(n1, Thing.class);
thing.setName("thing");
Node n2 = graphDatabaseService.createNode();
subThing = new SubThing(n2);
nodeTypeRepresentationStrategy.postEntityCreation(n2, SubThing.class);
subThing.setName("subThing");
tx.success();
return thing;
} finally {
tx.finish();
}
}
@NodeEntity
public static class Unrelated {
String name;
public String getName() {
return name;
}
}
@NodeEntity
public static class Thing {
String name;
public Thing(Node node) {
setPersistentState(node);
}
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
}
public static class SubThing extends Thing {
public SubThing(Node node) {
super(node);
}
}
private static Set<Node> set(Node... nodes) {
return new HashSet<Node>(Arrays.asList(nodes));
}
private void manualCleanDb() {
Transaction tx = graphDatabaseService.beginTx();
try {
cleanDb();
tx.success();
} finally {
tx.finish();
}
}
}