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/*******************************************************************************
* Copyright (c) 2011, 2013 IBM Corporation and others
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.metatype.impl;
import java.util.*;
import org.eclipse.equinox.metatype.Extendable;
public class ExtendableHelper implements Extendable {
private final Map<String, Map<String, String>> attributes;
public ExtendableHelper() {
this(Collections.<String, Map<String, String>> emptyMap());
}
public ExtendableHelper(Map<String, Map<String, String>> attributes) {
if (attributes == null)
throw new NullPointerException();
this.attributes = attributes;
}
public Map<String, String> getExtensionAttributes(String schema) {
return Collections.unmodifiableMap(attributes.get(schema));
}
public Set<String> getExtensionUris() {
return Collections.unmodifiableSet(attributes.keySet());
}
}
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