/*
 *
 * 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
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 */
package org.apache.qpid.server.configuration;

import junit.framework.TestCase;
import org.apache.commons.configuration.CompositeConfiguration;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.PropertiesConfiguration;

public class QueueConfigurationTest extends TestCase
{

    private VirtualHostConfiguration _emptyConf;
    private PropertiesConfiguration _env;
    private VirtualHostConfiguration _fullHostConf;

    public void setUp() throws Exception
    {
        _env = new PropertiesConfiguration();
        _emptyConf = new VirtualHostConfiguration("test", _env);

        PropertiesConfiguration fullEnv = new PropertiesConfiguration();
        fullEnv.setProperty("queues.maximumMessageAge", 1);
        fullEnv.setProperty("queues.maximumQueueDepth", 1);
        fullEnv.setProperty("queues.maximumMessageSize", 1);
        fullEnv.setProperty("queues.maximumMessageCount", 1);
        fullEnv.setProperty("queues.minimumAlertRepeatGap", 1);

        _fullHostConf = new VirtualHostConfiguration("test", fullEnv);

    }

    public void testGetMaximumMessageAge() throws ConfigurationException
    {
        // Check default value
        QueueConfiguration qConf = new QueueConfiguration("test", _emptyConf);
        assertEquals(0, qConf.getMaximumMessageAge());

        // Check explicit value
        VirtualHostConfiguration vhostConfig = overrideConfiguration("maximumMessageAge", 2);

        qConf = new QueueConfiguration("test", vhostConfig);
        assertEquals(2, qConf.getMaximumMessageAge());

        // Check inherited value
        qConf = new QueueConfiguration("test", _fullHostConf);
        assertEquals(1, qConf.getMaximumMessageAge());
    }

    public void testGetMaximumQueueDepth() throws ConfigurationException
    {
        // Check default value
        QueueConfiguration qConf = new QueueConfiguration("test", _emptyConf);
        assertEquals(0, qConf.getMaximumQueueDepth());

        // Check explicit value
        VirtualHostConfiguration vhostConfig = overrideConfiguration("maximumQueueDepth", 2);
        qConf = new QueueConfiguration("test", vhostConfig);
        assertEquals(2, qConf.getMaximumQueueDepth());

        // Check inherited value
        qConf = new QueueConfiguration("test", _fullHostConf);
        assertEquals(1, qConf.getMaximumQueueDepth());
    }

    public void testGetMaximumMessageSize() throws ConfigurationException
    {
        // Check default value
        QueueConfiguration qConf = new QueueConfiguration("test", _emptyConf);
        assertEquals(0, qConf.getMaximumMessageSize());

        // Check explicit value
        VirtualHostConfiguration vhostConfig = overrideConfiguration("maximumMessageSize", 2);
        qConf = new QueueConfiguration("test", vhostConfig);
        assertEquals(2, qConf.getMaximumMessageSize());

        // Check inherited value
        qConf = new QueueConfiguration("test", _fullHostConf);
        assertEquals(1, qConf.getMaximumMessageSize());
    }

    public void testGetMaximumMessageCount() throws ConfigurationException
    {
        // Check default value
        QueueConfiguration qConf = new QueueConfiguration("test", _emptyConf);
        assertEquals(0, qConf.getMaximumMessageCount());

        // Check explicit value
        VirtualHostConfiguration vhostConfig = overrideConfiguration("maximumMessageCount", 2);
        qConf = new QueueConfiguration("test", vhostConfig);
        assertEquals(2, qConf.getMaximumMessageCount());

        // Check inherited value
        qConf = new QueueConfiguration("test", _fullHostConf);
        assertEquals(1, qConf.getMaximumMessageCount());
    }

    public void testGetMinimumAlertRepeatGap() throws ConfigurationException
    {
        // Check default value
        QueueConfiguration qConf = new QueueConfiguration("test", _emptyConf);
        assertEquals(0, qConf.getMinimumAlertRepeatGap());

        // Check explicit value
        VirtualHostConfiguration vhostConfig = overrideConfiguration("minimumAlertRepeatGap", 2);
        qConf = new QueueConfiguration("test", vhostConfig);
        assertEquals(2, qConf.getMinimumAlertRepeatGap());

        // Check inherited value
        qConf = new QueueConfiguration("test", _fullHostConf);
        assertEquals(1, qConf.getMinimumAlertRepeatGap());
    }

    private VirtualHostConfiguration overrideConfiguration(String property, int value)
            throws ConfigurationException
    {
        PropertiesConfiguration queueConfig = new PropertiesConfiguration();
        queueConfig.setProperty("queues.queue.test." + property, value);

        CompositeConfiguration config = new CompositeConfiguration();
        config.addConfiguration(_fullHostConf.getConfig());
        config.addConfiguration(queueConfig);

        return new VirtualHostConfiguration("test", config);
    }

}