src/share/jaxws_classes/javax/xml/bind/util/JAXBResult.java

Thu, 31 Aug 2017 15:18:52 +0800

author
aoqi
date
Thu, 31 Aug 2017 15:18:52 +0800
changeset 637
9c07ef4934dd
parent 397
b99d7e355d4b
parent 0
373ffda63c9a
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation. Oracle designates this
aoqi@0 8 * particular file as subject to the "Classpath" exception as provided
aoqi@0 9 * by Oracle in the LICENSE file that accompanied this code.
aoqi@0 10 *
aoqi@0 11 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 14 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 15 * accompanied this code).
aoqi@0 16 *
aoqi@0 17 * You should have received a copy of the GNU General Public License version
aoqi@0 18 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 20 *
aoqi@0 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 22 * or visit www.oracle.com if you need additional information or have any
aoqi@0 23 * questions.
aoqi@0 24 */
aoqi@0 25
aoqi@0 26 package javax.xml.bind.util;
aoqi@0 27
aoqi@0 28 import javax.xml.bind.JAXBContext;
aoqi@0 29 import javax.xml.bind.JAXBException;
aoqi@0 30 import javax.xml.bind.Unmarshaller;
aoqi@0 31 import javax.xml.bind.UnmarshallerHandler;
aoqi@0 32 import javax.xml.transform.sax.SAXResult;
aoqi@0 33
aoqi@0 34 /**
aoqi@0 35 * JAXP {@link javax.xml.transform.Result} implementation
aoqi@0 36 * that unmarshals a JAXB object.
aoqi@0 37 *
aoqi@0 38 * <p>
aoqi@0 39 * This utility class is useful to combine JAXB with
aoqi@0 40 * other Java/XML technologies.
aoqi@0 41 *
aoqi@0 42 * <p>
aoqi@0 43 * The following example shows how to use JAXB to unmarshal a document
aoqi@0 44 * resulting from an XSLT transformation.
aoqi@0 45 *
aoqi@0 46 * <blockquote>
aoqi@0 47 * <pre>
aoqi@0 48 * JAXBResult result = new JAXBResult(
aoqi@0 49 * JAXBContext.newInstance("org.acme.foo") );
aoqi@0 50 *
aoqi@0 51 * // set up XSLT transformation
aoqi@0 52 * TransformerFactory tf = TransformerFactory.newInstance();
aoqi@0 53 * Transformer t = tf.newTransformer(new StreamSource("test.xsl"));
aoqi@0 54 *
aoqi@0 55 * // run transformation
aoqi@0 56 * t.transform(new StreamSource("document.xml"),result);
aoqi@0 57 *
aoqi@0 58 * // obtain the unmarshalled content tree
aoqi@0 59 * Object o = result.getResult();
aoqi@0 60 * </pre>
aoqi@0 61 * </blockquote>
aoqi@0 62 *
aoqi@0 63 * <p>
aoqi@0 64 * The fact that JAXBResult derives from SAXResult is an implementation
aoqi@0 65 * detail. Thus in general applications are strongly discouraged from
aoqi@0 66 * accessing methods defined on SAXResult.
aoqi@0 67 *
aoqi@0 68 * <p>
aoqi@0 69 * In particular it shall never attempt to call the setHandler,
aoqi@0 70 * setLexicalHandler, and setSystemId methods.
aoqi@0 71 *
aoqi@0 72 * @author
aoqi@0 73 * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
aoqi@0 74 */
aoqi@0 75 public class JAXBResult extends SAXResult {
aoqi@0 76
aoqi@0 77 /**
aoqi@0 78 * Creates a new instance that uses the specified
aoqi@0 79 * JAXBContext to unmarshal.
aoqi@0 80 *
aoqi@0 81 * @param context The JAXBContext that will be used to create the
aoqi@0 82 * necessary Unmarshaller. This parameter must not be null.
aoqi@0 83 * @exception JAXBException if an error is encountered while creating the
aoqi@0 84 * JAXBResult or if the context parameter is null.
aoqi@0 85 */
aoqi@0 86 public JAXBResult( JAXBContext context ) throws JAXBException {
aoqi@0 87 this( ( context == null ) ? assertionFailed() : context.createUnmarshaller() );
aoqi@0 88 }
aoqi@0 89
aoqi@0 90 /**
aoqi@0 91 * Creates a new instance that uses the specified
aoqi@0 92 * Unmarshaller to unmarshal an object.
aoqi@0 93 *
aoqi@0 94 * <p>
aoqi@0 95 * This JAXBResult object will use the specified Unmarshaller
aoqi@0 96 * instance. It is the caller's responsibility not to use the
aoqi@0 97 * same Unmarshaller for other purposes while it is being
aoqi@0 98 * used by this object.
aoqi@0 99 *
aoqi@0 100 * <p>
aoqi@0 101 * The primary purpose of this method is to allow the client
aoqi@0 102 * to configure Unmarshaller. Unless you know what you are doing,
aoqi@0 103 * it's easier and safer to pass a JAXBContext.
aoqi@0 104 *
aoqi@0 105 * @param _unmarshaller the unmarshaller. This parameter must not be null.
aoqi@0 106 * @throws JAXBException if an error is encountered while creating the
aoqi@0 107 * JAXBResult or the Unmarshaller parameter is null.
aoqi@0 108 */
aoqi@0 109 public JAXBResult( Unmarshaller _unmarshaller ) throws JAXBException {
aoqi@0 110 if( _unmarshaller == null )
aoqi@0 111 throw new JAXBException(
aoqi@0 112 Messages.format( Messages.RESULT_NULL_UNMARSHALLER ) );
aoqi@0 113
aoqi@0 114 this.unmarshallerHandler = _unmarshaller.getUnmarshallerHandler();
aoqi@0 115
aoqi@0 116 super.setHandler(unmarshallerHandler);
aoqi@0 117 }
aoqi@0 118
aoqi@0 119 /**
aoqi@0 120 * Unmarshaller that will be used to unmarshal
aoqi@0 121 * the input documents.
aoqi@0 122 */
aoqi@0 123 private final UnmarshallerHandler unmarshallerHandler;
aoqi@0 124
aoqi@0 125 /**
aoqi@0 126 * Gets the unmarshalled object created by the transformation.
aoqi@0 127 *
aoqi@0 128 * @return
aoqi@0 129 * Always return a non-null object.
aoqi@0 130 *
aoqi@0 131 * @exception IllegalStateException
aoqi@0 132 * if this method is called before an object is unmarshalled.
aoqi@0 133 *
aoqi@0 134 * @exception JAXBException
aoqi@0 135 * if there is any unmarshalling error.
aoqi@0 136 * Note that the implementation is allowed to throw SAXException
aoqi@0 137 * during the parsing when it finds an error.
aoqi@0 138 */
aoqi@0 139 public Object getResult() throws JAXBException {
aoqi@0 140 return unmarshallerHandler.getResult();
aoqi@0 141 }
aoqi@0 142
aoqi@0 143 /**
aoqi@0 144 * Hook to throw exception from the middle of a contructor chained call
aoqi@0 145 * to this
aoqi@0 146 */
aoqi@0 147 private static Unmarshaller assertionFailed() throws JAXBException {
aoqi@0 148 throw new JAXBException( Messages.format( Messages.RESULT_NULL_CONTEXT ) );
aoqi@0 149 }
aoqi@0 150 }

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