org.beanfuse.entity.Model.java Source code

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Here is the source code for org.beanfuse.entity.Model.java

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//$Id: Model.java May 3, 2008 9:37:32 PM chaostone Exp $
/*
 *
 * Copyright c 2005-2009.
 * 
 * Licensed under GNU  LESSER General Public License, Version 3.
 * http://www.gnu.org/licenses
 * 
 */
/********************************************************************************
 * @author chaostone
 * 
 * MODIFICATION DESCRIPTION
 * 
 * Name           Date          Description 
 * ============   ============  ============
 * chaostone      May 3, 2008  Created
 *  
 ********************************************************************************/
package org.beanfuse.entity;

import java.io.Serializable;
import java.util.Map;

import org.apache.commons.beanutils.PropertyUtils;
import org.beanfuse.entity.context.DefaultModelBuilder;
import org.beanfuse.entity.types.EntityType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public final class Model {

    public static final String NULL = "null";

    private static final Logger logger = LoggerFactory.getLogger(Model.class);

    private static EntityContext context;

    private static Populator populator;

    private static Model instance = new Model();

    static {
        new DefaultModelBuilder().build();
    }

    private Model() {
    }

    public static Object newInstance(Class clazz) {
        return getEntityType(clazz).newInstance();
    }

    public static Object newInstance(Class clazz, Serializable id) {
        Object entity = getEntityType(clazz).newInstance();
        try {
            PropertyUtils.setProperty(entity, "id", id);
        } catch (Exception e) {
            logger.error("initialize {} with id {} error", clazz, id);
        }
        return entity;
    }

    public static EntityType getEntityType(String entityName) {
        return context.getEntityType(entityName);
    }

    public static Type getType(String entityName) {
        return context.getType(entityName);
    }

    public static EntityType getEntityType(Class clazz) {
        EntityType type = null;
        if (clazz.isInterface()) {
            type = context.getEntityType(clazz.getName());
        } else {
            type = context.getEntityType(clazz);
        }
        return type;
    }

    /**
     * params([attr(string)->value(object)]<br>
     * <br>
     * paramsidnullnull.<br>
     * ??idparams null?
     * 
     * @param params
     * @param entity
     */
    public static void populate(Map params, Object entity) {
        populator.populate(params, entity);
    }

    public static EntityContext getContext() {
        return context;
    }

    public static void setContext(EntityContext context) {
        Model.context = context;
    }

    public static Populator getPopulator() {
        return populator;
    }

    public static void setPopulator(Populator populator) {
        Model.populator = populator;
    }

    public static Model getInstance() {
        return instance;
    }

}