/*
 * 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.ignite.internal;

import java.util.Map;
import org.apache.ignite.Ignite;
import org.apache.ignite.configuration.IgniteConfiguration;
import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/**
 * Ensures that system properties required by Visor are always passed to node attributes.
 */
@RunWith(JUnit4.class)
public class GridNodeVisorAttributesSelfTest extends GridCommonAbstractTest {
    /** System properties required by Visor. */
    private static final String[] SYSTEM_PROPS = new String[] {
        "java.version",
        "java.vm.name",
        "os.arch",
        "os.name",
        "os.version"
    };

    /** Ignite-specific properties required by Visor. */
    private static final String[] IGNITE_PROPS = new String[] {
        "org.apache.ignite.jvm.pid"
    };

    /** System and environment properties to include. */
    private String[] inclProps;

    /** {@inheritDoc} */
    @Override protected IgniteConfiguration getConfiguration(String igniteInstanceName) throws Exception {
        IgniteConfiguration cfg = super.getConfiguration(igniteInstanceName);

        cfg.setIncludeProperties(inclProps);

        return cfg;
    }

    /** {@inheritDoc} */
    @Override protected void afterTest() throws Exception {
        stopAllGrids();
    }

    /**
     * Start grid node and ensure that Visor-related node attributes are set properly.
     *
     * @throws Exception If grid start failed.
     */
    private void startGridAndCheck() throws Exception {
        Ignite g = startGrid();

        Map<String, Object> attrs = g.cluster().localNode().attributes();

        for (String prop : SYSTEM_PROPS) {
            assert attrs.containsKey(prop);

            assertEquals(System.getProperty(prop), attrs.get(prop));
        }

        for (String prop : IGNITE_PROPS)
            assert attrs.containsKey(prop);
    }

    /**
     * Test with 'includeProperties' configuration parameter set to {@code null}.
     *
     * @throws Exception If failed.
     */
    @Test
    public void testIncludeNull() throws Exception {
        inclProps = null;

        startGridAndCheck();
    }

    /**
     * Test with 'includeProperties' configuration parameter set to empty array.
     *
     * @throws Exception If failed.
     */
    @SuppressWarnings("ZeroLengthArrayAllocation")
    @Test
    public void testIncludeEmpty() throws Exception {
        inclProps = new String[] {};

        startGridAndCheck();
    }

    /**
     * Test with 'includeProperties' configuration parameter set to array with some values.
     *
     * @throws Exception If failed.
     */
    @Test
    public void testIncludeNonEmpty() throws Exception {
        inclProps = new String[] {"prop1", "prop2"};

        startGridAndCheck();
    }
}