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JmxDocTest.java
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JmxDocTest.java
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/*
* Licensed to Neo Technology under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Neo Technology 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.neo4j.examples;
import java.util.Date;
import javax.management.ObjectName;
import org.junit.Test;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.jmx.JmxUtils;
import org.neo4j.test.TestGraphDatabaseFactory;
import static org.junit.Assert.*;
import static org.mockito.Mockito.mock;
public class JmxDocTest
{
@Test
public void readJmxProperties()
{
GraphDatabaseService graphDbService = new TestGraphDatabaseFactory().newImpermanentDatabase();
try
{
Date startTime = getStartTimeFromManagementBean( graphDbService );
Date now = new Date();
assertTrue( startTime.before( now ) || startTime.equals( now ) );
}
finally
{
graphDbService.shutdown();
}
}
@Test
public void properErrorOnNonStandardGraphDatabase()
{
GraphDatabaseService graphDbService = mock(GraphDatabaseService.class);
try
{
getStartTimeFromManagementBean( graphDbService );
fail("Expected error");
}
catch(IllegalArgumentException e)
{
assertEquals("Can only resolve object names for embedded Neo4j database " +
"instances, eg. instances created by GraphDatabaseFactory or HighlyAvailableGraphDatabaseFactory.",
e.getMessage());
}
}
// START SNIPPET: getStartTime
private static Date getStartTimeFromManagementBean(
GraphDatabaseService graphDbService )
{
ObjectName objectName = JmxUtils.getObjectName( graphDbService, "Kernel" );
Date date = JmxUtils.getAttribute( objectName, "KernelStartTime" );
return date;
}
// END SNIPPET: getStartTime
}