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.client;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * Content negotiation enum.
aoqi@0:  * <p>
aoqi@0:  * A value of {@link #none} means no content negotation at level of the
aoqi@0:  * client transport will be performed to negotiate the encoding of XML infoset.
aoqi@0:  * The default encoding will always be used.
aoqi@0:  * <p>
aoqi@0:  * A value of {@link #pessimistic} means the client transport will assume
aoqi@0:  * the default encoding of XML infoset for an outbound message unless informed
aoqi@0:  * otherwise by a previously received inbound message.
aoqi@0:  * (The client transport initially and pessimistically assumes that a service
aoqi@0:  * does not support anything other than the default encoding of XML infoset.)
aoqi@0:  * <p>
aoqi@0:  * A value of {@link #optimistic} means the client transport will assume
aoqi@0:  * a non-default encoding of XML infoset for an outbound message.
aoqi@0:  * (The client transport optimistically assumes that a service
aoqi@0:  * supports the non-default encoding of XML infoset.)
aoqi@0:  *
aoqi@0:  * @author Paul.Sandoz@Sun.Com
aoqi@0:  */
aoqi@0: public enum ContentNegotiation {
aoqi@0:     none,
aoqi@0:     pessimistic,
aoqi@0:     optimistic;
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Property name for content negotiation on {@link RequestContext}.
aoqi@0:      */
aoqi@0:     public static final String PROPERTY = "com.sun.xml.internal.ws.client.ContentNegotiation";
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Obtain the content negotiation value from a system property.
aoqi@0:      * <p>
aoqi@0:      * This method will never throw a runtime exception.
aoqi@0:      *
aoqi@0:      * @return the content negotiation value.
aoqi@0:      */
aoqi@0:     public static ContentNegotiation obtainFromSystemProperty() {
aoqi@0:         try {
aoqi@0:             String value = System.getProperty(PROPERTY);
aoqi@0: 
aoqi@0:             if (value == null) {
aoqi@0:                 return none;
aoqi@0:             }
aoqi@0: 
aoqi@0:             return valueOf(value);
aoqi@0:         } catch (Exception e) {
aoqi@0:             // Default to none for any unrecognized value or any other
aoqi@0:             // runtime exception thrown
aoqi@0:             return none;
aoqi@0:         }
aoqi@0:     }
aoqi@0: }