/*
 * Copyright 2008 the original author or authors.
 * 
 * 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.
 */ 
package org.wamblee.system.spring.component;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.TreeMap;

import javax.sql.DataSource;

import org.hibernate.SessionFactory;
import org.springframework.core.io.ClassPathResource;
import org.springframework.orm.hibernate3.HibernateTemplate;
import org.springframework.transaction.PlatformTransactionManager;
import org.wamblee.persistence.hibernate.HibernateMappingFiles;
import org.wamblee.system.core.DefaultProvidedInterface;
import org.wamblee.system.core.DefaultRequiredInterface;
import org.wamblee.system.core.ProvidedInterface;
import org.wamblee.system.core.RequiredInterface;
import org.wamblee.system.spring.SpringComponent;

public class HibernateComponent extends SpringComponent {

    private static final String HIBERNATE_PROPERTIES = "properties/test.org.wamblee.security.hibernate.properties";
    private static final String HIBERNATE_SPRING_CONFIG = "spring/test.org.wamblee.security.database.xml";

    public HibernateComponent(String aName) throws IOException { 
        super(aName, new String[] { HIBERNATE_SPRING_CONFIG}, 
                createProvided(), createRequired()); 
        
        Properties props = new Properties(); 
        props.load(new ClassPathResource(HIBERNATE_PROPERTIES).getInputStream());
        addProperties(props);
    }

    private static Map<RequiredInterface, String> createRequired() {
        Map<RequiredInterface,String> required = new HashMap<RequiredInterface, String>();
        required.put(new DefaultRequiredInterface("datasource", DataSource.class), "dataSource");
        required.put(new DefaultRequiredInterface("mappingFiles", HibernateMappingFiles.class), 
                "hibernateMappingFiles");
        return required;
    }

    private static Map<String, ProvidedInterface> createProvided() {
        Map<String,ProvidedInterface> provided = new HashMap<String,ProvidedInterface>(); 
        
        provided.put("transactionManager", new DefaultProvidedInterface(
                "transactionMgr", PlatformTransactionManager.class));
        provided.put("sessionFactory", new DefaultProvidedInterface(
                "sessionFactory", SessionFactory.class));
        provided.put("org.springframework.orm.hibernate3.HibernateTemplate", new DefaultProvidedInterface(
                "hibernateTemplate", HibernateTemplate.class));
        return provided;
    }
}