src/share/jaxws_classes/com/sun/xml/internal/ws/api/wsdl/parser/WSDLParserExtension.java

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

author
aoqi
date
Thu, 31 Aug 2017 15:18:52 +0800
changeset 637
9c07ef4934dd
parent 408
b0610cd08440
parent 0
373ffda63c9a
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 1997, 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 com.sun.xml.internal.ws.api.wsdl.parser;
aoqi@0 27
aoqi@0 28 import com.sun.xml.internal.ws.api.WSService;
aoqi@0 29 import com.sun.xml.internal.ws.api.model.wsdl.editable.EditableWSDLBoundFault;
aoqi@0 30 import com.sun.xml.internal.ws.api.model.wsdl.editable.EditableWSDLBoundOperation;
aoqi@0 31 import com.sun.xml.internal.ws.api.model.wsdl.editable.EditableWSDLBoundPortType;
aoqi@0 32 import com.sun.xml.internal.ws.api.model.wsdl.editable.EditableWSDLFault;
aoqi@0 33 import com.sun.xml.internal.ws.api.model.wsdl.editable.EditableWSDLInput;
aoqi@0 34 import com.sun.xml.internal.ws.api.model.wsdl.editable.EditableWSDLMessage;
aoqi@0 35 import com.sun.xml.internal.ws.api.model.wsdl.editable.EditableWSDLOperation;
aoqi@0 36 import com.sun.xml.internal.ws.api.model.wsdl.editable.EditableWSDLOutput;
aoqi@0 37 import com.sun.xml.internal.ws.api.model.wsdl.editable.EditableWSDLPort;
aoqi@0 38 import com.sun.xml.internal.ws.api.model.wsdl.editable.EditableWSDLPortType;
aoqi@0 39 import com.sun.xml.internal.ws.api.model.wsdl.editable.EditableWSDLService;
aoqi@0 40 import com.sun.xml.internal.ws.api.pipe.Tube;
aoqi@0 41 import com.sun.xml.internal.ws.wsdl.parser.RuntimeWSDLParser;
aoqi@0 42
aoqi@0 43 import javax.xml.stream.XMLStreamConstants;
aoqi@0 44 import javax.xml.stream.XMLStreamReader;
aoqi@0 45 import javax.xml.ws.WebServiceException;
aoqi@0 46
aoqi@0 47 /**
aoqi@0 48 * Extends the WSDL parsing process.
aoqi@0 49 *
aoqi@0 50 * <p>
aoqi@0 51 * This interface is implemented by components that build on top of the JAX-WS RI,
aoqi@0 52 * to participate in the WSDL parsing process that happens in the runtime.
aoqi@0 53 * This allows such components to retrieve information from WSDL extension elements,
aoqi@0 54 * and use that later to, for example, configure {@link Tube}s.
aoqi@0 55 *
aoqi@0 56 *
aoqi@0 57 *
aoqi@0 58 * <h2>How it works?</h2>
aoqi@0 59 * <p>
aoqi@0 60 * Each method on this interface denotes one extension point in WSDL
aoqi@0 61 * (the place where foreign elements/attributes can be added.) A {@link RuntimeWSDLParser}
aoqi@0 62 * starts parsing WSDL with a fixed set of {@link WSDLParserExtension}s, and
aoqi@0 63 * as it finds extension elements/attributes, it calls appropriate callback methods
aoqi@0 64 * to provide a chance for {@link WSDLParserExtension} to parse such
aoqi@0 65 * an extension element.
aoqi@0 66 *
aoqi@0 67 * <p>
aoqi@0 68 * There are two kinds of callbacks.
aoqi@0 69 *
aoqi@0 70 * <h3>Attribute callbacks</h3>
aoqi@0 71 * <p>
aoqi@0 72 * One is for attributes, which ends with the name {@code Attributes}.
aoqi@0 73 * This callback is invoked with {@link XMLStreamReader} that points
aoqi@0 74 * to the start tag of the WSDL element.
aoqi@0 75 *
aoqi@0 76 * <p>
aoqi@0 77 * The callback method can read interesting attributes on it.
aoqi@0 78 * The method must return without advancing the parser to the next token.
aoqi@0 79 *
aoqi@0 80 * <h3>Element callbacks</h3>
aoqi@0 81 * <p>
aoqi@0 82 * The other callback is for extension elements, which ends with the name
aoqi@0 83 * {@code Elements}.
aoqi@0 84 * When a callback is invoked, {@link XMLStreamReader} points to the
aoqi@0 85 * start tag of the extension element. The callback method can do
aoqi@0 86 * one of the following:
aoqi@0 87 *
aoqi@0 88 * <ol>
aoqi@0 89 * <li>Return {@code false} without moving {@link XMLStreamReader},
aoqi@0 90 * to indicate that the extension element isn't recognized.
aoqi@0 91 * This allows the next {@link WSDLParserExtension} to see this
aoqi@0 92 * extension element.
aoqi@0 93 * <li>Parse the whole subtree rooted at the element,
aoqi@0 94 * move the cursor to the {@link XMLStreamConstants#END_ELEMENT} state,
aoqi@0 95 * and return {@code true}, indicating that the extension
aoqi@0 96 * element is consumed.
aoqi@0 97 * No other {@link WSDLParserExtension}s are notified of this extension.
aoqi@0 98 * </ol>
aoqi@0 99 *
aoqi@0 100 * <h3>Parsing in callback</h3>
aoqi@0 101 * <p>
aoqi@0 102 * For each callback, the corresponding WSDL model object is passed in,
aoqi@0 103 * so that {@link WSDLParserExtension} can relate what it's parsing
aoqi@0 104 * to the {@link WSDLModel}. Most likely, extensions can parse
aoqi@0 105 * their data into an {@link WSDLExtension}-derived classes, then
aoqi@0 106 * use {@link WSDLExtensible} interface to hook them into {@link WSDLModel}.
aoqi@0 107 *
aoqi@0 108 * <p>
aoqi@0 109 * Note that since the {@link WSDLModel} itself
aoqi@0 110 * is being built, {@link WSDLParserExtension} may not invoke any of
aoqi@0 111 * the query methods on the WSDL model. Those references are passed just so that
aoqi@0 112 * {@link WSDLParserExtension} can hold on to those references, or put
aoqi@0 113 * {@link WSDLExtensible} objects into the model, not to query it.
aoqi@0 114 *
aoqi@0 115 * <p>
aoqi@0 116 * If {@link WSDLParserExtension} needs to query {@link WSDLModel},
aoqi@0 117 * defer that processing until {@link #finished(WSDLParserExtensionContext)}, when it's
aoqi@0 118 * safe to use {@link WSDLModel} can be used safely.
aoqi@0 119 *
aoqi@0 120 * <p>
aoqi@0 121 * Also note that {@link WSDLParserExtension}s are called in no particular order.
aoqi@0 122 * This interface is not designed for having multiple {@link WSDLParserExtension}s
aoqi@0 123 * parse the same extension element.
aoqi@0 124 *
aoqi@0 125 *
aoqi@0 126 * <h2>Error Handling</h2>
aoqi@0 127 * <p>
aoqi@0 128 * For usability, {@link WSDLParserExtension}s are expected to check possible
aoqi@0 129 * errors in the extension elements that it parses. When an error is found,
aoqi@0 130 * it may throw a {@link WebServiceException} to abort the parsing of the WSDL.
aoqi@0 131 * This exception will be propagated to the user, so it should have
aoqi@0 132 * detailed error messages pointing at the problem.
aoqi@0 133 *
aoqi@0 134 * <h2>Discovery</h2>
aoqi@0 135 * <p>
aoqi@0 136 * The JAX-WS RI locates the implementation of {@link WSDLParserExtension}s
aoqi@0 137 * by using the standard service look up mechanism, in particular looking for
aoqi@0 138 * <tt>META-INF/services/com.sun.xml.internal.ws.api.wsdl.parser.WSDLParserExtension</tt>
aoqi@0 139 *
aoqi@0 140 *
aoqi@0 141 * <h2>TODO</h2>
aoqi@0 142 * <p>
aoqi@0 143 * As it's designed today, extensions cannot access to any of the environmental
aoqi@0 144 * information before the parsing begins (such as what {@link WSService} this
aoqi@0 145 * WSDL is being parsed for, etc.) We might need to reconsider this aspect.
aoqi@0 146 * The JAX-WS team waits for feedback on this topic.
aoqi@0 147 *
aoqi@0 148 * @author Kohsuke Kawaguchi
aoqi@0 149 */
aoqi@0 150 public abstract class WSDLParserExtension {
aoqi@0 151
aoqi@0 152 public void start(WSDLParserExtensionContext context){
aoqi@0 153 // noop
aoqi@0 154 }
aoqi@0 155
aoqi@0 156 public void serviceAttributes(EditableWSDLService service, XMLStreamReader reader) {
aoqi@0 157 // noop
aoqi@0 158 }
aoqi@0 159
aoqi@0 160 public boolean serviceElements(EditableWSDLService service, XMLStreamReader reader) {
aoqi@0 161 return false;
aoqi@0 162 }
aoqi@0 163
aoqi@0 164 public void portAttributes(EditableWSDLPort port, XMLStreamReader reader) {
aoqi@0 165 // noop
aoqi@0 166 }
aoqi@0 167
aoqi@0 168 public boolean portElements(EditableWSDLPort port, XMLStreamReader reader) {
aoqi@0 169 return false;
aoqi@0 170 }
aoqi@0 171
aoqi@0 172 public boolean portTypeOperationInput(EditableWSDLOperation op, XMLStreamReader reader) {
aoqi@0 173 return false;
aoqi@0 174 }
aoqi@0 175
aoqi@0 176 public boolean portTypeOperationOutput(EditableWSDLOperation op, XMLStreamReader reader) {
aoqi@0 177 return false;
aoqi@0 178 }
aoqi@0 179
aoqi@0 180 public boolean portTypeOperationFault(EditableWSDLOperation op, XMLStreamReader reader) {
aoqi@0 181 return false;
aoqi@0 182 }
aoqi@0 183
aoqi@0 184 public boolean definitionsElements(XMLStreamReader reader) {
aoqi@0 185 return false;
aoqi@0 186 }
aoqi@0 187
aoqi@0 188 public boolean bindingElements(EditableWSDLBoundPortType binding, XMLStreamReader reader) {
aoqi@0 189 return false;
aoqi@0 190 }
aoqi@0 191
aoqi@0 192 public void bindingAttributes(EditableWSDLBoundPortType binding, XMLStreamReader reader) {
aoqi@0 193 }
aoqi@0 194
aoqi@0 195 public boolean portTypeElements(EditableWSDLPortType portType, XMLStreamReader reader) {
aoqi@0 196 return false;
aoqi@0 197 }
aoqi@0 198
aoqi@0 199 public void portTypeAttributes(EditableWSDLPortType portType, XMLStreamReader reader) {
aoqi@0 200 }
aoqi@0 201
aoqi@0 202 public boolean portTypeOperationElements(EditableWSDLOperation operation, XMLStreamReader reader) {
aoqi@0 203 return false;
aoqi@0 204 }
aoqi@0 205
aoqi@0 206 public void portTypeOperationAttributes(EditableWSDLOperation operation, XMLStreamReader reader) {
aoqi@0 207 }
aoqi@0 208
aoqi@0 209 public boolean bindingOperationElements(EditableWSDLBoundOperation operation, XMLStreamReader reader) {
aoqi@0 210 return false;
aoqi@0 211 }
aoqi@0 212
aoqi@0 213 public void bindingOperationAttributes(EditableWSDLBoundOperation operation, XMLStreamReader reader) {
aoqi@0 214 }
aoqi@0 215
aoqi@0 216 public boolean messageElements(EditableWSDLMessage msg, XMLStreamReader reader) {
aoqi@0 217 return false;
aoqi@0 218 }
aoqi@0 219
aoqi@0 220 public void messageAttributes(EditableWSDLMessage msg, XMLStreamReader reader) {
aoqi@0 221 }
aoqi@0 222
aoqi@0 223 public boolean portTypeOperationInputElements(EditableWSDLInput input, XMLStreamReader reader) {
aoqi@0 224 return false;
aoqi@0 225 }
aoqi@0 226
aoqi@0 227 public void portTypeOperationInputAttributes(EditableWSDLInput input, XMLStreamReader reader) {
aoqi@0 228 }
aoqi@0 229
aoqi@0 230 public boolean portTypeOperationOutputElements(EditableWSDLOutput output, XMLStreamReader reader) {
aoqi@0 231 return false;
aoqi@0 232 }
aoqi@0 233
aoqi@0 234 public void portTypeOperationOutputAttributes(EditableWSDLOutput output, XMLStreamReader reader) {
aoqi@0 235 }
aoqi@0 236
aoqi@0 237 public boolean portTypeOperationFaultElements(EditableWSDLFault fault, XMLStreamReader reader) {
aoqi@0 238 return false;
aoqi@0 239 }
aoqi@0 240
aoqi@0 241 public void portTypeOperationFaultAttributes(EditableWSDLFault fault, XMLStreamReader reader) {
aoqi@0 242 }
aoqi@0 243
aoqi@0 244 public boolean bindingOperationInputElements(EditableWSDLBoundOperation operation, XMLStreamReader reader) {
aoqi@0 245 return false;
aoqi@0 246 }
aoqi@0 247
aoqi@0 248 public void bindingOperationInputAttributes(EditableWSDLBoundOperation operation, XMLStreamReader reader) {
aoqi@0 249 }
aoqi@0 250
aoqi@0 251 public boolean bindingOperationOutputElements(EditableWSDLBoundOperation operation, XMLStreamReader reader) {
aoqi@0 252 return false;
aoqi@0 253 }
aoqi@0 254
aoqi@0 255 public void bindingOperationOutputAttributes(EditableWSDLBoundOperation operation, XMLStreamReader reader) {
aoqi@0 256 }
aoqi@0 257
aoqi@0 258 public boolean bindingOperationFaultElements(EditableWSDLBoundFault fault, XMLStreamReader reader) {
aoqi@0 259 return false;
aoqi@0 260 }
aoqi@0 261
aoqi@0 262 public void bindingOperationFaultAttributes(EditableWSDLBoundFault fault, XMLStreamReader reader) {
aoqi@0 263 }
aoqi@0 264
aoqi@0 265 // TODO: complete the rest of the callback
aoqi@0 266
aoqi@0 267 /**
aoqi@0 268 * Called when the parsing of a set of WSDL documents are all done.
aoqi@0 269 * <p>
aoqi@0 270 * This is the opportunity to do any post-processing of the parsing
aoqi@0 271 * you've done.
aoqi@0 272 *
aoqi@0 273 * @param context {@link WSDLParserExtensionContext} gives fully parsed {@link WSDLModel}.
aoqi@0 274 */
aoqi@0 275 public void finished(WSDLParserExtensionContext context) {
aoqi@0 276 // noop
aoqi@0 277 }
aoqi@0 278
aoqi@0 279 public void postFinished(WSDLParserExtensionContext context) {
aoqi@0 280 // noop
aoqi@0 281 }
aoqi@0 282 }

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