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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2017 Payara Foundation and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://github.com/payara/Payara/blob/master/LICENSE.txt
 * See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * The Payara Foundation designates this particular file as subject to the "Classpath"
 * exception as provided by the Payara Foundation in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
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 */
package fish.payara.nucleus.microprofile.config.source;

import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.Set;

import org.eclipse.microprofile.config.spi.ConfigSource;

/**
 *
 * @author Steve Millidge (Payara Foundation)
 */
public class PropertiesConfigSource implements ConfigSource {
    
    private final Properties props;

    public PropertiesConfigSource(Properties props) {
        this.props = props;
    }
    
    @Override
    public Map getProperties() {
        HashMap result = new HashMap<>(props.size());
        for (Object key : props.keySet()) {
            result.put((String) key, props.getProperty((String) key));
        }
        return result;
    }

    @Override
    public Set getPropertyNames() {
        return getProperties().keySet();
    }

    @Override
    public int getOrdinal() {
        String ordinalVal = props.getProperty("config_ordinal", "100");
        return Integer.parseInt(ordinalVal);
    }

    @Override
    public String getValue(String propertyName) {
        return props.getProperty(propertyName);
    }

    @Override
    public String getName() {
        return "Properties";
    }
    
}