// Path: common/src/main/java/com/kumuluz/ee/configuration/utils/ConfigurationDispatcher.java
// public class ConfigurationDispatcher {
// 
//     private List<ConfigurationListener> subscriptions = new ArrayList<>();
// 
//     public void notifyChange(String key, String value) {
// 
//         for (ConfigurationListener subscription : subscriptions) {
//             subscription.onChange(key, value);
//         }
//     }
// 
//     public void subscribe(ConfigurationListener listener) {
//         subscriptions.add(listener);
//     }
// 
//     public void unsubscribe(ConfigurationListener listener) {
//         subscriptions.remove(listener);
//     }
// }


import com.kumuluz.ee.configuration.ConfigurationSource;
import com.kumuluz.ee.configuration.utils.ConfigurationDispatcher;
import com.kumuluz.ee.configuration.utils.ConfigurationSourceUtils;
import java.util.List;
import java.util.Optional;
/*
 *  Copyright (c) 2014-2017 Kumuluz and/or its affiliates
 *  and other contributors as indicated by the @author tags and
 *  the contributor list.
 *
 *  Licensed under the MIT License (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  https://opensource.org/licenses/MIT
 *
 *  The software is provided "AS IS", WITHOUT WARRANTY OF ANY KIND, express or
 *  implied, including but not limited to the warranties of merchantability,
 *  fitness for a particular purpose and noninfringement. in no event shall the
 *  authors or copyright holders be liable for any claim, damages or other
 *  liability, whether in an action of contract, tort or otherwise, arising from,
 *  out of or in connection with the software or the use or other dealings in the
 *  software. See the License for the specific language governing permissions and
 *  limitations under the License.
*/
package com.kumuluz.ee.configuration.sources;



/**
 * @author Urban Malc
 * @since 2.4.0
 */
public class SystemPropertyConfigurationSource implements ConfigurationSource {

    @Override
// Path: common/src/main/java/com/kumuluz/ee/configuration/utils/ConfigurationDispatcher.java
// public class ConfigurationDispatcher {
// 
//     private List<ConfigurationListener> subscriptions = new ArrayList<>();
// 
//     public void notifyChange(String key, String value) {
// 
//         for (ConfigurationListener subscription : subscriptions) {
//             subscription.onChange(key, value);
//         }
//     }
// 
//     public void subscribe(ConfigurationListener listener) {
//         subscriptions.add(listener);
//     }
// 
//     public void unsubscribe(ConfigurationListener listener) {
//         subscriptions.remove(listener);
//     }
// }


// Path: common/src/main/java/com/kumuluz/ee/configuration/sources/SystemPropertyConfigurationSource.java
import com.kumuluz.ee.configuration.ConfigurationSource;
import com.kumuluz.ee.configuration.utils.ConfigurationDispatcher;
import com.kumuluz.ee.configuration.utils.ConfigurationSourceUtils;
import java.util.List;
import java.util.Optional;

/*
 *  Copyright (c) 2014-2017 Kumuluz and/or its affiliates
 *  and other contributors as indicated by the @author tags and
 *  the contributor list.
 *
 *  Licensed under the MIT License (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  https://opensource.org/licenses/MIT
 *
 *  The software is provided "AS IS", WITHOUT WARRANTY OF ANY KIND, express or
 *  implied, including but not limited to the warranties of merchantability,
 *  fitness for a particular purpose and noninfringement. in no event shall the
 *  authors or copyright holders be liable for any claim, damages or other
 *  liability, whether in an action of contract, tort or otherwise, arising from,
 *  out of or in connection with the software or the use or other dealings in the
 *  software. See the License for the specific language governing permissions and
 *  limitations under the License.
*/
package com.kumuluz.ee.configuration.sources;



/**
 * @author Urban Malc
 * @since 2.4.0
 */
public class SystemPropertyConfigurationSource implements ConfigurationSource {

    @Override
    public void init(ConfigurationDispatcher configurationDispatcher) {