/*
* 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.jackrabbit.core;
import javax.jcr.Node;
import javax.jcr.RepositoryException;
import javax.jcr.Session;
import javax.jcr.Value;
import javax.jcr.ValueFactory;
import org.apache.jackrabbit.test.AbstractJCRTest;
/**
*
*/
public final class ReferencesTest extends AbstractJCRTest {
private String uniquePrefix;
private static int cnt = 0;
/**
* {@inheritDoc}
*/
public void setUp() throws Exception {
uniquePrefix = "referencesTest" + System.currentTimeMillis() + "-" + cnt;
cnt++;
Session session = createSession();
Node a = getTestRootNode(session).addNode("A");
Node b = a.addNode("B");
a.addMixin("mix:referenceable");
b.addMixin("mix:referenceable");
getTestRootNode(session).addNode("C");
saveAndlogout(session);
}
/**
* Tries to create a double back-reference to "ref to B" property.
*
* @throws Exception on test error
*/
public void testDoubleBackReference() throws Exception {
Session session1 = createSession();
Node bses1 = getTestRootNode(session1).getNode("A").getNode("B");
getTestRootNode(session1).getNode("C").setProperty("ref to B", bses1);
Session session2 = createSession();
Node bses2 = getTestRootNode(session2).getNode("A").getNode("B");
getTestRootNode(session2).getNode("C").setProperty("ref to B", bses2);
saveAndlogout(session1, session2);
assertRemoveTestNodes();
}
/**
* Tries to create a single back-reference to "ref to B" property which does not exist.
*
* @throws Exception on test error
*/
public void testBackRefToNonExistingProp() throws Exception {
Session session2 = createSession();
Node bses2 = getTestRootNode(session2).getNode("A").getNode("B");
getTestRootNode(session2).getNode("C").setProperty("ref to B", bses2);
Session session3 = createSession();
getTestRootNode(session3).getNode("C").setProperty("ref to B", new Value[]{});
saveAndlogout(session2, session3);
assertRemoveTestNodes();
}
/**
* Tries to create a single back-reference to "ref" property for both A and B whereas "ref" is single
* valued and points to A.
*
* @throws Exception on test error
*/
public void testMisdirectedBackRef() throws Exception {
Session session2 = createSession();
Node bses2 = getTestRootNode(session2).getNode("A").getNode("B");
getTestRootNode(session2).getNode("C").setProperty("ref", bses2);
Session session3 = createSession();
Node ases3 = getTestRootNode(session3).getNode("A");
getTestRootNode(session3).getNode("C").setProperty("ref", ases3);
saveAndlogout(session2, session3);
assertRemoveTestNodes();
}
/**
* Variant of {@link #testDoubleBackReference()} for mult-valued props.
*
* @throws Exception on test error
*/
public void testDoubleBackRefReferenceMultiValued() throws Exception {
Session session2 = createSession();
ValueFactory valFac2 = session2.getValueFactory();
Node bses2 = getTestRootNode(session2).getNode("A").getNode("B");
getTestRootNode(session2).getNode("C").setProperty("ref to B",
new Value[]{valFac2.createValue(bses2), valFac2.createValue(bses2)});
Session session3 = createSession();
ValueFactory valFac3 = session3.getValueFactory();
Node bses3 = getTestRootNode(session3).getNode("A").getNode("B");
getTestRootNode(session3).getNode("C").setProperty("ref to B",
new Value[]{valFac3.createValue(bses3), valFac3.createValue(bses3)});
saveAndlogout(session2, session3);
assertRemoveTestNodes();
}
/**
* Variant of {@link #testMisdirectedBackRef()} for multi-valued props.
*
* @throws Exception on test error
*/
public void testMisdirectedBackRefMultiValued() throws Exception {
Session session2 = createSession();
ValueFactory valFac2 = session2.getValueFactory();
Node ases2 = getTestRootNode(session2).getNode("A");
getTestRootNode(session2).getNode("C").setProperty("ref",
new Value[]{valFac2.createValue(ases2), valFac2.createValue(ases2)});
Session session3 = createSession();
ValueFactory valFac3 = session3.getValueFactory();
Node bses3 = getTestRootNode(session3).getNode("A").getNode("B");
getTestRootNode(session3).getNode("C").setProperty("ref", new Value[]{valFac3.createValue(bses3)});
saveAndlogout(session2, session3);
assertRemoveTestNodes();
}
/**
* Regular references usage.
*
* @throws Exception on test error
*/
public void testRegularReference() throws Exception {
Session session1 = createSession();
Node bses1 = getTestRootNode(session1).getNode("A").getNode("B");
getTestRootNode(session1).getNode("A").setProperty("ref to B", bses1);
Session session2 = createSession();
ValueFactory valFac2 = session2.getValueFactory();
Node bses2 = getTestRootNode(session2).getNode("A").getNode("B");
getTestRootNode(session2).getNode("C").setProperty("ref to B",
new Value[]{valFac2.createValue(bses2), valFac2.createValue(bses2)});
getTestRootNode(session2).getNode("C").setProperty("another ref to B", bses2);
saveAndlogout(session1, session2);
assertRemoveTestNodes();
}
private void assertRemoveTestNodes() throws RepositoryException {
Session session = createSession();
getTestRootNode(session).remove();
assertSave(session);
session.logout();
}
/**
* @param session the session to save
*/
private void assertSave(Session session) {
try {
session.save();
} catch (RepositoryException e) {
fail("saving session failed: " + e.getMessage());
}
}
/**
* @return a super user session
* @throws RepositoryException on error
*/
private Session createSession() throws RepositoryException {
return getHelper().getSuperuserSession();
}
private void saveAndlogout(Session... sessions) throws RepositoryException {
if (sessions != null) {
for (Session session : sessions) {
session.save();
session.logout();
}
}
}
/**
* @param session the session to use
* @return a node which is more or less unique per testcase
* @throws RepositoryException on error
*/
private Node getTestRootNode(Session session) throws RepositoryException {
if (session.getRootNode().hasNode(uniquePrefix)) {
return session.getRootNode().getNode(uniquePrefix);
} else {
return session.getRootNode().addNode(uniquePrefix);
}
}
}