ohair@286: /*
alanb@368:  * Copyright (c) 1997, 2012, 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.api.policy;
ohair@286: 
ohair@286: import com.sun.xml.internal.ws.config.management.policy.ManagementAssertionCreator;
ohair@286: import com.sun.xml.internal.ws.policy.PolicyException;
ohair@286: import com.sun.xml.internal.ws.policy.privateutil.PolicyLogger;
ohair@286: import com.sun.xml.internal.ws.policy.sourcemodel.PolicyModelTranslator;
ohair@286: import com.sun.xml.internal.ws.policy.spi.PolicyAssertionCreator;
ohair@286: import com.sun.xml.internal.ws.resources.ManagementMessages;
ohair@286: 
ohair@286: import java.util.Arrays;
ohair@286: 
ohair@286: /**
ohair@286:  * This class provides a method for translating a PolicySourceModel structure to a
ohair@286:  * normalized Policy expression. The resulting Policy is disconnected from its model,
ohair@286:  * thus any additional changes in the model will have no effect on the Policy expression.
ohair@286:  *
ohair@286:  * @author Fabian Ritzmann
ohair@286:  */
ohair@286: public class ModelTranslator extends PolicyModelTranslator {
ohair@286: 
ohair@286:     private static final PolicyLogger LOGGER = PolicyLogger.getLogger(ModelTranslator.class);
ohair@286: 
ohair@286:     private static final PolicyAssertionCreator[] JAXWS_ASSERTION_CREATORS = {
ohair@286:         new ManagementAssertionCreator()
ohair@286:     };
ohair@286: 
ohair@286:     private static final ModelTranslator translator;
ohair@286:     private static final PolicyException creationException;
ohair@286: 
ohair@286:     static {
ohair@286:         ModelTranslator tempTranslator = null;
ohair@286:         PolicyException tempException = null;
ohair@286:         try {
ohair@286:             tempTranslator = new ModelTranslator();
ohair@286:         } catch (PolicyException e) {
ohair@286:             tempException = e;
ohair@286:             LOGGER.warning(ManagementMessages.WSM_1007_FAILED_MODEL_TRANSLATOR_INSTANTIATION(), e);
ohair@286:         } finally {
ohair@286:             translator = tempTranslator;
ohair@286:             creationException = tempException;
ohair@286:         }
ohair@286:     }
ohair@286: 
ohair@286:     private ModelTranslator() throws PolicyException {
ohair@286:         super(Arrays.asList(JAXWS_ASSERTION_CREATORS));
ohair@286:     }
ohair@286: 
ohair@286:     /**
ohair@286:      * Method returns thread-safe policy model translator instance.
ohair@286:      *
ohair@286:      * @return A policy model translator instance.
ohair@286:      * @throws PolicyException If instantiating a PolicyAssertionCreator failed.
ohair@286:      */
ohair@286:     public static ModelTranslator getTranslator() throws PolicyException {
ohair@286:         if (creationException != null) {
ohair@286:             throw LOGGER.logSevereException(creationException);
ohair@286:         }
ohair@286:         else {
ohair@286:             return translator;
ohair@286:         }
ohair@286:     }
ohair@286: 
ohair@286: }