org.apache.oodt.cas.protocol.config.SpringProtocolConfig.java Source code

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Here is the source code for org.apache.oodt.cas.protocol.config.SpringProtocolConfig.java

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/*
 * 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.oodt.cas.protocol.config;

//JDK imports
import java.net.URI;
import java.util.ArrayList;
import java.util.Collection;
import java.util.concurrent.ConcurrentHashMap;
import java.util.List;
import java.util.Map;

//Spring imports
import org.apache.commons.lang.Validate;
import org.apache.oodt.cas.protocol.ProtocolFactory;
import org.springframework.context.support.FileSystemXmlApplicationContext;

/**
 * Spring Framework base {@link ProtocolConfig} which loads {@link ProtocolFactory}s
 * from a Spring xml bean file.
 *
 * @author bfoster
 */
public class SpringProtocolConfig implements ProtocolConfig {

    protected Map<String, List<ProtocolFactory>> factoryMap;

    public SpringProtocolConfig(String configFile) {
        Validate.notNull(configFile, "SpringProtocolConfig configFile cannnot be NULL");
        factoryMap = new ConcurrentHashMap<String, List<ProtocolFactory>>();
        loadFactories(new FileSystemXmlApplicationContext(configFile));
    }

    private void loadFactories(FileSystemXmlApplicationContext appContext) {
        Collection<ProtocolFactory> protocolFactories = appContext.getBeansOfType(ProtocolFactory.class).values();
        for (ProtocolFactory factory : protocolFactories) {
            List<ProtocolFactory> factories = factoryMap.get(factory.getSchema());
            if (factories == null) {
                factories = new ArrayList<ProtocolFactory>();
            }
            factories.add(factory);
            factoryMap.put(factory.getSchema(), factories);
        }
    }

    public List<ProtocolFactory> getAllFactories() {
        ArrayList<ProtocolFactory> factories = new ArrayList<ProtocolFactory>();
        for (List<ProtocolFactory> groupOfFactories : factoryMap.values()) {
            factories.addAll(groupOfFactories);
        }
        return factories;
    }

    public List<ProtocolFactory> getFactoriesBySite(URI site) {
        Validate.notNull(site, "URI site cannot be NULL");
        List<ProtocolFactory> factories = factoryMap.get(site.getScheme());
        if (factories == null) {
            factories = new ArrayList<ProtocolFactory>();
        }
        return factories;
    }

}