/**
 *
 * 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 under the License.
 */
package org.apache.tomee.common;

import javax.naming.Context;
import javax.naming.Name;
import javax.naming.NamingException;
import javax.naming.Reference;
import java.net.URL;
import java.util.Hashtable;

import static org.apache.tomee.common.NamingUtil.NAME;
import static org.apache.tomee.common.NamingUtil.RESOURCE_ID;
import static org.apache.tomee.common.NamingUtil.getProperty;

public class ResourceFactory extends AbstractObjectFactory {
    public Object getObjectInstance(final Object object, final Name name, final Context context, final Hashtable environment) throws Exception {

        final Reference reference = ((Reference) object);

        final String type = reference.getClassName();

        if ("java.net.URL".equals(type)) {
            final String resourceId = getProperty(reference, RESOURCE_ID);
            return new URL(resourceId);
        }

        if ("java.lang.Class".equals(type)) {
            final ClassLoader loader = Thread.currentThread().getContextClassLoader();
            final String resourceId = getProperty(reference, RESOURCE_ID);
            return loader.loadClass(resourceId);
        }

        return super.getObjectInstance(object, name, context, environment);
    }

    protected String buildJndiName(final Reference reference) throws NamingException {
        // get and verify interface type
        String resourceId = getProperty(reference, RESOURCE_ID);
        if (resourceId == null) {
            resourceId = getProperty(reference, NAME);
        }
        if (resourceId == null) {
            throw new NamingException("Resource reference id is null");
        }

        // build jndi name using the deploymentId and interface type
        if (resourceId.startsWith("java:")) {
            return resourceId;
        }
        return "java:openejb/Resource/" + resourceId;
    }

}
