org.broadleafcommerce.common.persistence.EntityConfiguration Maven / Gradle / Ivy

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A collection of classes shared by broadleaf profile, cms, admin, and core.
There is a newer version: 3.1.15-GA
/*
 * Copyright 2008-2013 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.broadleafcommerce.common.persistence;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.support.GenericXmlApplicationContext;
import org.springframework.core.io.Resource;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;
import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.Set;

@Component("blEntityConfiguration")
public class EntityConfiguration implements ApplicationContextAware {

    private static final Log LOG = LogFactory.getLog(EntityConfiguration.class);

    private ApplicationContext webApplicationContext;
    private final HashMap> entityMap = new HashMap>(50);
    private ApplicationContext applicationcontext;
    private Resource[] entityContexts;

    @javax.annotation.Resource(name="blMergedEntityContexts")
    protected Set mergedEntityContexts;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.webApplicationContext = applicationContext;
    }

    @PostConstruct
    public void configureMergedItems() {
        Set temp = new LinkedHashSet();
        if (mergedEntityContexts != null && !mergedEntityContexts.isEmpty()) {
            for (String location : mergedEntityContexts) {
                temp.add(webApplicationContext.getResource(location));
            }
        }
        if (entityContexts != null) {
            for (Resource resource : entityContexts) {
                temp.add(resource);
            }
        }
        entityContexts = temp.toArray(new Resource[temp.size()]);
        applicationcontext = new GenericXmlApplicationContext(entityContexts);
    }

    public Class lookupEntityClass(String beanId) {
        Class clazz;
        if (entityMap.containsKey(beanId)) {
            clazz = entityMap.get(beanId);
        } else {
            Object object = applicationcontext.getBean(beanId);
            clazz = object.getClass();
            entityMap.put(beanId, clazz);
        }
        if (LOG.isDebugEnabled()) {
            LOG.debug("Returning class (" + clazz.getName() + ") configured with bean id (" + beanId + ')');
        }
        return clazz;
    }
    
    public String[] getEntityBeanNames() {
        return applicationcontext.getBeanDefinitionNames();
    }

    public  Class lookupEntityClass(String beanId, Class resultClass) {
        Class clazz;
        if (entityMap.containsKey(beanId)) {
            clazz = (Class) entityMap.get(beanId);
        } else {
            Object object = applicationcontext.getBean(beanId);
            clazz = (Class) object.getClass();
            entityMap.put(beanId, clazz);
        }
        if (LOG.isDebugEnabled()) {
            LOG.debug("Returning class (" + clazz.getName() + ") configured with bean id (" + beanId + ')');
        }
        return clazz;
    }

    public Object createEntityInstance(String beanId) {
        Object bean = applicationcontext.getBean(beanId);
        if (LOG.isDebugEnabled()) {
            LOG.debug("Returning instance of class (" + bean.getClass().getName() + ") configured with bean id (" + beanId + ')');
        }
        return bean;
    }

    public  T createEntityInstance(String beanId, Class resultClass) {
        T bean = (T) applicationcontext.getBean(beanId);
        if (LOG.isDebugEnabled()) {
            LOG.debug("Returning instance of class (" + bean.getClass().getName() + ") configured with bean id (" + beanId + ')');
        }
        return bean;
    }

    public Resource[] getEntityContexts() {
        return entityContexts;
    }

    public void setEntityContexts(Resource[] entityContexts) {
        this.entityContexts = entityContexts;
    }
}