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/**
 * SCA4J
 * Copyright (c) 2009 - 2099 Service Symphony Ltd
 *
 * Licensed to you under the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.  A copy of the license
 * is included in this distrubtion or you may obtain a copy at
 *
 *    http://www.opensource.org/licenses/apache2.0.php
 *
 * 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.
 *
 * This project contains code licensed from the Apache Software Foundation under
 * the Apache License, Version 2.0 and original code from project contributors.
 *
 *
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 *
 * Copyright (c) 2007 - 2008 fabric3 project contributors
 *
 * Licensed to you under the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.  A copy of the license
 * is included in this distrubtion or you may obtain a copy at
 *
 *    http://www.opensource.org/licenses/apache2.0.php
 *
 * 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.
 *
 * This project contains code licensed from the Apache Software Foundation under
 * the Apache License, Version 2.0 and original code from project contributors.
 *
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 *
 * Copyright (c) 2005 - 2006 The Apache Software Foundation
 *
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 * Foundation (ASF), sponsored by the Apache Web Services PMC. Incubation is
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/*
 * 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.sca4j.spi;

/**
 * Base class providing a simple implementation of Lifecycle.
 *
 * @version $Rev: 212 $ $Date: 2007-06-09 19:04:21 +0100 (Sat, 09 Jun 2007) $
 */
public abstract class AbstractLifecycle implements Lifecycle {
    protected volatile int lifecycleState = UNINITIALIZED;

    public int getLifecycleState() {
        return lifecycleState;
    }

    /**
     * Set the current state of the Lifecycle.
     *
     * @param lifecycleState the new state
     */
    protected void setLifecycleState(int lifecycleState) {
        this.lifecycleState = lifecycleState;
    }

    public void start() {
        setLifecycleState(RUNNING);
    }

    public void stop() {
        setLifecycleState(STOPPED);
    }

    /**
     * Returns the current lifecycle as a String (for example, "RUNNING").
     *
     * @return the current lifecycle as a String
     */
    public String toString() {
        switch (lifecycleState) {
            case Lifecycle.CONFIG_ERROR:
                return "CONFIG_ERROR";
            case Lifecycle.ERROR:
                return "ERROR";
            case Lifecycle.INITIALIZING:
                return "INITIALIZING";
            case Lifecycle.INITIALIZED:
                return "INITIALIZED";
            case Lifecycle.RUNNING:
                return "RUNNING";
            case Lifecycle.STOPPING:
                return "STOPPING";
            case Lifecycle.STOPPED:
                return "STOPPED";
            case Lifecycle.UNINITIALIZED:
                return "UNINITIALIZED";
            default:
                return "UNKNOWN";
        }
    }
}