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/**
 * COOS - Connected Objects Operating System (www.connectedobjects.org).
 *
 * Copyright (C) 2009 Telenor ASA and Tellu AS. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see .
 *
 * You may also contact one of the following for additional information:
 * Telenor ASA, Snaroyveien 30, N-1331 Fornebu, Norway (www.telenor.no)
 * Tellu AS, Hagalokkveien 13, N-1383 Asker, Norway (www.tellu.no)
 */
package org.coos.messaging.impl;

import java.util.Enumeration;
import java.util.Hashtable;

import org.coos.messaging.COContainer;
import org.coos.messaging.Processor;
import org.coos.messaging.util.Log;
import org.coos.messaging.util.LogFactory;


/**
 * @author Knut Eilif Husa, Tellu AS
 */
public abstract class DefaultProcessor implements Processor {

    private boolean shared = false;
    protected String name;
    protected Hashtable properties = new Hashtable();
    protected COContainer coContainer;
    protected final Log logger = LogFactory.getLog(this.getClass().getName());

    public void setProperties(Hashtable addedProperties) {
        Enumeration keys = addedProperties.keys();

        while (keys.hasMoreElements()) {
            String key = (String) keys.nextElement();
            this.properties.put(key, addedProperties.get(key));
        }
    }

    public Hashtable getProperties() {
        return this.properties;
    }

    public void setProperty(String key, String value) {
        this.properties.put(key, value);
        logger.info("Processor properties set to:" + properties);
    }

    public String getProperty(String key) {
        return (String) this.properties.get(key);
    }

    public String getProperty(String key, String defaultValue) {
        String value = (String) this.properties.get(key);

        if (value == null)
            return defaultValue;

        return value;
    }

    public void setShared(Boolean shared) {
        this.shared = shared.booleanValue();
    }

    public void setCoContainer(COContainer coContainer) {
        this.coContainer = coContainer;
    }

    public COContainer getCoContainer() {
        return this.coContainer;
    }

    public boolean isShared() {
        return shared;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Processor copy() {

        if (shared) {
            return this;
        } else {
            Processor processor = null;

            try {
                processor = (Processor) this.getClass().newInstance();
                processor.setProperties(properties);
                processor.setShared(new Boolean(shared));
                processor.setName(name);
                processor.setCoContainer(coContainer);
            } catch (IllegalAccessException e) {
                logger.error("Class loader problem", e);
            } catch (InstantiationException e) {
                logger.error("Class loader problem", e);
            }

            return processor;
        }
    }
}