ohair@286: /*
ohair@286:  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
ohair@286:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ohair@286:  *
ohair@286:  * This code is free software; you can redistribute it and/or modify it
ohair@286:  * under the terms of the GNU General Public License version 2 only, as
ohair@286:  * published by the Free Software Foundation.  Oracle designates this
ohair@286:  * particular file as subject to the "Classpath" exception as provided
ohair@286:  * by Oracle in the LICENSE file that accompanied this code.
ohair@286:  *
ohair@286:  * This code is distributed in the hope that it will be useful, but WITHOUT
ohair@286:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ohair@286:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
ohair@286:  * version 2 for more details (a copy is included in the LICENSE file that
ohair@286:  * accompanied this code).
ohair@286:  *
ohair@286:  * You should have received a copy of the GNU General Public License version
ohair@286:  * 2 along with this work; if not, write to the Free Software Foundation,
ohair@286:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ohair@286:  *
ohair@286:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@286:  * or visit www.oracle.com if you need additional information or have any
ohair@286:  * questions.
ohair@286:  */
ohair@286: 
ohair@286: package com.sun.xml.internal.ws.binding;
ohair@286: 
ohair@286: import com.sun.istack.internal.NotNull;
ohair@286: import com.sun.istack.internal.Nullable;
ohair@286: 
ohair@286: import javax.xml.ws.WebServiceException;
ohair@286: import javax.xml.ws.WebServiceFeature;
ohair@286: 
ohair@286: /**
ohair@286:  * Experimental: Utility methods that operate on WebServiceFeatureLists.
ohair@286:  *
ohair@286:  * @author WS Development Team
ohair@286:  */
ohair@286: public class FeatureListUtil {
ohair@286: 
ohair@286:     /**
ohair@286:      * Merge all features into one list. Returns an empty list if no lists were
ohair@286:      * passed as parameter.
ohair@286:      *
ohair@286:      * @param lists The WebServiceFeatureLists.
ohair@286:      * @return A new WebServiceFeatureList that contains all features.
ohair@286:      */
ohair@286:     public static @NotNull WebServiceFeatureList mergeList(WebServiceFeatureList... lists) {
ohair@286:         final WebServiceFeatureList result = new WebServiceFeatureList();
ohair@286:         for (WebServiceFeatureList list : lists) {
ohair@286:             result.addAll(list);
ohair@286:         }
ohair@286:         return result;
ohair@286:     }
ohair@286: 
ohair@286:     public static @Nullable <F extends WebServiceFeature> F mergeFeature(final @NotNull Class<F> featureType,
ohair@286:             @Nullable WebServiceFeatureList list1, @Nullable WebServiceFeatureList list2)
ohair@286:             throws WebServiceException {
ohair@286:         final F feature1 = list1 != null ? list1.get(featureType) : null;
ohair@286:         final F feature2 = list2 != null ? list2.get(featureType) : null;
ohair@286:         if (feature1 == null) {
ohair@286:             return feature2;
ohair@286:         }
ohair@286:         else if (feature2 == null) {
ohair@286:             return feature1;
ohair@286:         }
ohair@286:         else {
ohair@286:             if (feature1.equals(feature2)) {
ohair@286:                 return feature1;
ohair@286:             }
ohair@286:             else {
ohair@286:                 // TODO exception text
ohair@286:                 throw new WebServiceException(feature1 + ", " + feature2);
ohair@286:             }
ohair@286:         }
ohair@286:     }
ohair@286: 
ohair@286:     public static boolean isFeatureEnabled(@NotNull Class<? extends WebServiceFeature> featureType,
ohair@286:             @Nullable WebServiceFeatureList list1, @Nullable WebServiceFeatureList list2)
ohair@286:             throws WebServiceException {
ohair@286:         final WebServiceFeature mergedFeature = mergeFeature(featureType, list1, list2);
ohair@286:         return (mergedFeature != null) && mergedFeature.isEnabled();
ohair@286:     }
ohair@286: 
ohair@286: }