/**
 * Copyright (c) 2010 Yahoo! Inc. All rights reserved.
 * 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. See accompanying LICENSE file.
 */
package org.apache.oozie.service;

import org.apache.oozie.test.XTestCase;

import java.io.File;

public class TestServices extends XTestCase {

    public void testDefaultServices() throws Exception {
        setSystemProperty(ConfigurationService.OOZIE_CONFIG_FILE, "oozie-dummy.xml");
        setSystemProperty(Services.CONF_SERVICE_CLASSES, "");
        setSystemProperty(Services.CONF_SERVICE_EXT_CLASSES, "");
        Services services = new Services();
        services.init();
        assertNotNull(services.get(XLogService.class));
        assertNotNull(services.get(ConfigurationService.class));

        String shouldBe = "oozie-" + System.getProperty("user.name");
        assertTrue(shouldBe.startsWith(services.getSystemId()));
        assertNotNull(services.getRuntimeDir());
        assertTrue(new File(services.getRuntimeDir()).exists());

        services.destroy();
    }

    public static class S1 implements Service {

        @Override
        public void init(Services services) throws ServiceException {
        }

        @Override
        public void destroy() {
        }

        @Override
        public Class<? extends Service> getInterface() {
            return S1.class;
        }
    }

    public static class S2 implements Service {

        @Override
        public void init(Services services) throws ServiceException {
        }

        @Override
        public void destroy() {
        }

        @Override
        public Class<? extends Service> getInterface() {
            return S2.class;
        }
    }

    public static class S1Ext extends S1 {
    }

    private static final String SERVICES = S1.class.getName() + "," + S2.class.getName();

    public void testServiceExtLoading() throws Exception {
        setSystemProperty(Services.CONF_SERVICE_CLASSES, SERVICES);
        Services services = new Services();
        services.init();
        assertEquals(S1.class,  services.get(S1.class).getClass());
        assertEquals(S2.class,  services.get(S2.class).getClass());
    }

    private static final String SERVICES_EXT = S1Ext.class.getName();

    public void testServicesExtLoading() throws Exception {
        setSystemProperty(Services.CONF_SERVICE_CLASSES, SERVICES);
        setSystemProperty(Services.CONF_SERVICE_EXT_CLASSES, SERVICES_EXT);
        Services services = new Services();
        services.init();
        assertEquals(S1Ext.class,  services.get(S1.class).getClass());
        assertEquals(S2.class,  services.get(S2.class).getClass());
    }
}