01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * The contents of this file are subject to the terms of either the GNU
07: * General Public License Version 2 only ("GPL") or the Common Development
08: * and Distribution License("CDDL") (collectively, the "License"). You
09: * may not use this file except in compliance with the License. You can obtain
10: * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
11: * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
12: * language governing permissions and limitations under the License.
13: *
14: * When distributing the software, include this License Header Notice in each
15: * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
16: * Sun designates this particular file as subject to the "Classpath" exception
17: * as provided by Sun in the GPL Version 2 section of the License file that
18: * accompanied this code. If applicable, add the following below the License
19: * Header, with the fields enclosed by brackets [] replaced by your own
20: * identifying information: "Portions Copyrighted [year]
21: * [name of copyright owner]"
22: *
23: * Contributor(s):
24: *
25: * If you wish your version of this file to be governed by only the CDDL or
26: * only the GPL Version 2, indicate your decision by adding "[Contributor]
27: * elects to include this software in this distribution under the [CDDL or GPL
28: * Version 2] license." If you don't indicate a single choice of license, a
29: * recipient has the option to distribute your version of this file under
30: * either the CDDL, the GPL Version 2 or to extend the choice of license to
31: * its licensees as provided above. However, if you add GPL Version 2 code
32: * and therefore, elected the GPL Version 2 license, then the option applies
33: * only if the new code is made subject to such option by the copyright
34: * holder.
35: */
36: package com.sun.xml.ws.client;
37:
38: /**
39: * Content negotiation enum.
40: * <p>
41: * A value of {@link #none} means no content negotation at level of the
42: * client transport will be performed to negotiate the encoding of XML infoset.
43: * The default encoding will always be used.
44: * <p>
45: * A value of {@link #pessimistic} means the client transport will assume
46: * the default encoding of XML infoset for an outbound message unless informed
47: * otherwise by a previously received inbound message.
48: * (The client transport initially and pessimistically assumes that a service
49: * does not support anything other than the default encoding of XML infoset.)
50: * <p>
51: * A value of {@link #optimistic} means the client transport will assume
52: * a non-default encoding of XML infoset for an outbound message.
53: * (The client transport optimistically assumes that a service
54: * supports the non-default encoding of XML infoset.)
55: *
56: * @author Paul.Sandoz@Sun.Com
57: */
58: public enum ContentNegotiation {
59: none, pessimistic, optimistic;
60:
61: /**
62: * Property name for content negotiation on {@link RequestContext}.
63: */
64: public static final String PROPERTY = "com.sun.xml.ws.client.ContentNegotiation";
65:
66: /**
67: * Obtain the content negotiation value from a system property.
68: * <p>
69: * This method will never throw a runtime exception.
70: *
71: * @return the content negotiation value.
72: */
73: public static ContentNegotiation obtainFromSystemProperty() {
74: try {
75: String value = System.getProperty(PROPERTY);
76:
77: if (value == null)
78: return none;
79:
80: return valueOf(value);
81: } catch (Exception e) {
82: // Default to none for any unrecognized value or any other
83: // runtime exception thrown
84: return none;
85: }
86: }
87: }
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