aoqi@0: /*
aoqi@0:  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: package com.sun.xml.internal.ws.api.policy;
aoqi@0: 
aoqi@0: import com.sun.xml.internal.ws.config.management.policy.ManagementAssertionCreator;
aoqi@0: import com.sun.xml.internal.ws.policy.PolicyException;
aoqi@0: import com.sun.xml.internal.ws.policy.privateutil.PolicyLogger;
aoqi@0: import com.sun.xml.internal.ws.policy.sourcemodel.PolicyModelTranslator;
aoqi@0: import com.sun.xml.internal.ws.policy.spi.PolicyAssertionCreator;
aoqi@0: import com.sun.xml.internal.ws.resources.ManagementMessages;
aoqi@0: 
aoqi@0: import java.util.Arrays;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * This class provides a method for translating a PolicySourceModel structure to a
aoqi@0:  * normalized Policy expression. The resulting Policy is disconnected from its model,
aoqi@0:  * thus any additional changes in the model will have no effect on the Policy expression.
aoqi@0:  *
aoqi@0:  * @author Fabian Ritzmann
aoqi@0:  */
aoqi@0: public class ModelTranslator extends PolicyModelTranslator {
aoqi@0: 
aoqi@0:     private static final PolicyLogger LOGGER = PolicyLogger.getLogger(ModelTranslator.class);
aoqi@0: 
aoqi@0:     private static final PolicyAssertionCreator[] JAXWS_ASSERTION_CREATORS = {
aoqi@0:         new ManagementAssertionCreator()
aoqi@0:     };
aoqi@0: 
aoqi@0:     private static final ModelTranslator translator;
aoqi@0:     private static final PolicyException creationException;
aoqi@0: 
aoqi@0:     static {
aoqi@0:         ModelTranslator tempTranslator = null;
aoqi@0:         PolicyException tempException = null;
aoqi@0:         try {
aoqi@0:             tempTranslator = new ModelTranslator();
aoqi@0:         } catch (PolicyException e) {
aoqi@0:             tempException = e;
aoqi@0:             LOGGER.warning(ManagementMessages.WSM_1007_FAILED_MODEL_TRANSLATOR_INSTANTIATION(), e);
aoqi@0:         } finally {
aoqi@0:             translator = tempTranslator;
aoqi@0:             creationException = tempException;
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     private ModelTranslator() throws PolicyException {
aoqi@0:         super(Arrays.asList(JAXWS_ASSERTION_CREATORS));
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Method returns thread-safe policy model translator instance.
aoqi@0:      *
aoqi@0:      * @return A policy model translator instance.
aoqi@0:      * @throws PolicyException If instantiating a PolicyAssertionCreator failed.
aoqi@0:      */
aoqi@0:     public static ModelTranslator getTranslator() throws PolicyException {
aoqi@0:         if (creationException != null) {
aoqi@0:             throw LOGGER.logSevereException(creationException);
aoqi@0:         }
aoqi@0:         else {
aoqi@0:             return translator;
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0: }