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package org.nakedobjects.metamodel.config.internal;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

import org.nakedobjects.metamodel.commons.lang.IoUtils;
import org.nakedobjects.metamodel.commons.resource.ResourceStreamSource;


/**
 * This class loads properties using the specified {@link ResourceStreamSource}.
 */
public class PropertiesReader {
    
	private final Properties properties = new Properties();

	public PropertiesReader(
			final ResourceStreamSource resourceStream,
			final String configurationResource) throws IOException {
		
		InputStream in = null;
		try {
			in = resourceStream.readResource(configurationResource);
			if (in == null) {
				throw new IOException("Unable to find resource " + configurationResource);
			}
			properties.load(in);
		} finally {
			IoUtils.closeSafely(in);
		}
	}

	public Properties getProperties() {
		return properties;
	}

}
// Copyright (c) Naked Objects Group Ltd.