/******************************************************************************* * 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()); } }