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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
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* The contents of this file are subject to the terms of either the GNU
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* General Public License Version 2 only ("GPL") or the Common
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* Development and Distribution License("CDDL") (collectively, the
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* "License"). You may not use this file except in compliance with the
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* License. You can obtain a copy of the License at
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* http://www.netbeans.org/cddl-gplv2.html
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* or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
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* specific language governing permissions and limitations under the
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* License. When distributing the software, include this License Header
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* Notice in each file and include the License file at
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* nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the GPL Version 2 section of the License file that
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* accompanied this code. If applicable, add the following below the
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* License Header, with the fields enclosed by brackets [] replaced by
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* your own identifying information:
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* "Portions Copyrighted [year] [name of copyright owner]"
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* The Original Software is NetBeans. The Initial Developer of the Original
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* Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
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* Microsystems, Inc. All Rights Reserved.
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* If you wish your version of this file to be governed by only the CDDL
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* or only the GPL Version 2, indicate your decision by adding
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* "[Contributor] elects to include this software in this distribution
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* under the [CDDL or GPL Version 2] license." If you do not indicate a
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* single choice of license, a recipient has the option to distribute
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* your version of this file under either the CDDL, the GPL Version 2 or
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* to extend the choice of license to its licensees as provided above.
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* However, if you add GPL Version 2 code and therefore, elected the GPL
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* Version 2 license, then the option applies only if the new code is
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* made subject to such option by the copyright holder.
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package org.netbeans.modules.php.model.impl;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.List;
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import org.netbeans.modules.php.model.Reference;
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import org.netbeans.modules.php.model.SourceElement;
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import org.netbeans.modules.php.model.refs.ReferenceResolver;
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import org.openide.util.Lookup;
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* Reference implementation for classes and interfaces identifiers.
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class ReferenceImpl<T extends SourceElement> implements Reference<T> {
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* @param source element from which reference should be resolved
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* ( <code>source</code> element has this reference )
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ReferenceImpl( SourceElementImpl source, String identifier ,
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myIdentifier = identifier;
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* @see org.netbeans.modules.php.model.Reference#get()
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ReferenceResolver resolver = getResolver();
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assert resolver != null;
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List<T> result= resolver.resolve( getSource(), getIdentifier(), getType(),
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if ( result != null && result.size() >0 ) {
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return result.get( result.size() -1 );
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* @see org.netbeans.modules.php.model.Reference#getIdentifier()
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public String getIdentifier() {
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* @see org.netbeans.modules.php.model.Reference#getSource()
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public SourceElement getSource() {
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private Class<T> getType(){
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private ReferenceResolver getResolver() {
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ReferenceResolver result = myResovers.get( getType());
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if ( result != null ) {
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Collection<? extends ReferenceResolver> collection=
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Lookup.getDefault().lookupAll( ReferenceResolver.class );
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for ( ReferenceResolver resolver : collection) {
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if ( resolver.isApplicable( getType() )) {
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myResovers.put(getType(), result );
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private String myIdentifier;
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private Class<T> myClass;
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private SourceElementImpl mySource;
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private Map<Class<T>, ReferenceResolver> myResovers =
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new HashMap<Class<T>, ReferenceResolver>();