src/share/jaxws_classes/com/sun/xml/internal/ws/assembler/MetroConfigLoader.java

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1 /*
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.xml.internal.ws.assembler;
27
28 import com.sun.istack.internal.NotNull;
29 import com.sun.istack.internal.logging.Logger;
30 import com.sun.xml.internal.ws.api.ResourceLoader;
31 import com.sun.xml.internal.ws.api.server.Container;
32 import com.sun.xml.internal.ws.resources.TubelineassemblyMessages;
33 import com.sun.xml.internal.ws.runtime.config.MetroConfig;
34 import com.sun.xml.internal.ws.runtime.config.TubeFactoryList;
35 import com.sun.xml.internal.ws.runtime.config.TubelineDefinition;
36 import com.sun.xml.internal.ws.runtime.config.TubelineMapping;
37 import com.sun.xml.internal.ws.util.xml.XmlUtil;
38
39 import javax.xml.bind.JAXBContext;
40 import javax.xml.bind.JAXBElement;
41 import javax.xml.bind.Unmarshaller;
42 import javax.xml.stream.XMLInputFactory;
43 import javax.xml.ws.WebServiceException;
44 import java.lang.reflect.Method;
45 import java.lang.reflect.ReflectPermission;
46 import java.net.MalformedURLException;
47 import java.net.URI;
48 import java.net.URISyntaxException;
49 import java.net.URL;
50 import java.security.*;
51 import java.util.PropertyPermission;
52 import java.util.logging.Level;
53
54 /**
55 * This class is responsible for locating and loading Metro configuration files
56 * (both application jaxws-tubes.xml and default jaxws-tubes-default.xml).
57 * <p/>
58 * Once the configuration is loaded the class is able to resolve which tubeline
59 * configuration belongs to each endpoint or endpoint client. This information is
60 * then used in {@link TubelineAssemblyController} to construct the list of
61 * {@link TubeCreator} objects that are used in the actual tubeline construction.
62 *
63 * @author Marek Potociar <marek.potociar at sun.com>
64 */
65 // TODO Move the logic of this class directly into MetroConfig class.
66 class MetroConfigLoader {
67
68 private static final Logger LOGGER = Logger.getLogger(MetroConfigLoader.class);
69
70 private MetroConfigName defaultTubesConfigNames;
71
72 private static interface TubeFactoryListResolver {
73
74 TubeFactoryList getFactories(TubelineDefinition td);
75 }
76
77 private static final TubeFactoryListResolver ENDPOINT_SIDE_RESOLVER = new TubeFactoryListResolver() {
78
79 public TubeFactoryList getFactories(TubelineDefinition td) {
80 return (td != null) ? td.getEndpointSide() : null;
81 }
82 };
83 private static final TubeFactoryListResolver CLIENT_SIDE_RESOLVER = new TubeFactoryListResolver() {
84
85 public TubeFactoryList getFactories(TubelineDefinition td) {
86 return (td != null) ? td.getClientSide() : null;
87 }
88 };
89 //
90 private MetroConfig defaultConfig;
91 private URL defaultConfigUrl;
92 private MetroConfig appConfig;
93 private URL appConfigUrl;
94
95 MetroConfigLoader(Container container, MetroConfigName defaultTubesConfigNames) {
96 this.defaultTubesConfigNames = defaultTubesConfigNames;
97 ResourceLoader spiResourceLoader = null;
98 if (container != null) {
99 spiResourceLoader = container.getSPI(ResourceLoader.class);
100 }
101 // if spi resource can't load resource, default (MetroConfigUrlLoader) is used;
102 // it searches the classpath, so it would be most probably used
103 // when using jaxws- or metro-defaults from jaxws libraries
104 init(container, spiResourceLoader, new MetroConfigUrlLoader(container));
105 }
106
107 private void init(Container container, ResourceLoader... loaders) {
108
109 String appFileName = null;
110 String defaultFileName = null;
111 if (container != null) {
112 MetroConfigName mcn = container.getSPI(MetroConfigName.class);
113 if (mcn != null) {
114 appFileName = mcn.getAppFileName();
115 defaultFileName = mcn.getDefaultFileName();
116 }
117 }
118 if (appFileName == null) {
119 appFileName = defaultTubesConfigNames.getAppFileName();
120 }
121
122 if (defaultFileName == null) {
123 defaultFileName = defaultTubesConfigNames.getDefaultFileName();
124 }
125 this.defaultConfigUrl = locateResource(defaultFileName, loaders);
126 if (defaultConfigUrl == null) {
127 throw LOGGER.logSevereException(new IllegalStateException(TubelineassemblyMessages.MASM_0001_DEFAULT_CFG_FILE_NOT_FOUND(defaultFileName)));
128 }
129
130 LOGGER.config(TubelineassemblyMessages.MASM_0002_DEFAULT_CFG_FILE_LOCATED(defaultFileName, defaultConfigUrl));
131 this.defaultConfig = MetroConfigLoader.loadMetroConfig(defaultConfigUrl);
132 if (defaultConfig == null) {
133 throw LOGGER.logSevereException(new IllegalStateException(TubelineassemblyMessages.MASM_0003_DEFAULT_CFG_FILE_NOT_LOADED(defaultFileName)));
134 }
135 if (defaultConfig.getTubelines() == null) {
136 throw LOGGER.logSevereException(new IllegalStateException(TubelineassemblyMessages.MASM_0004_NO_TUBELINES_SECTION_IN_DEFAULT_CFG_FILE(defaultFileName)));
137 }
138 if (defaultConfig.getTubelines().getDefault() == null) {
139 throw LOGGER.logSevereException(new IllegalStateException(TubelineassemblyMessages.MASM_0005_NO_DEFAULT_TUBELINE_IN_DEFAULT_CFG_FILE(defaultFileName)));
140 }
141
142 this.appConfigUrl = locateResource(appFileName, loaders);
143 if (appConfigUrl != null) {
144 LOGGER.config(TubelineassemblyMessages.MASM_0006_APP_CFG_FILE_LOCATED(appConfigUrl));
145 this.appConfig = MetroConfigLoader.loadMetroConfig(appConfigUrl);
146 } else {
147 LOGGER.config(TubelineassemblyMessages.MASM_0007_APP_CFG_FILE_NOT_FOUND());
148 this.appConfig = null;
149 }
150 }
151
152 TubeFactoryList getEndpointSideTubeFactories(URI endpointReference) {
153 return getTubeFactories(endpointReference, ENDPOINT_SIDE_RESOLVER);
154 }
155
156 TubeFactoryList getClientSideTubeFactories(URI endpointReference) {
157 return getTubeFactories(endpointReference, CLIENT_SIDE_RESOLVER);
158 }
159
160 private TubeFactoryList getTubeFactories(URI endpointReference, TubeFactoryListResolver resolver) {
161 if (appConfig != null && appConfig.getTubelines() != null) {
162 for (TubelineMapping mapping : appConfig.getTubelines().getTubelineMappings()) {
163 if (mapping.getEndpointRef().equals(endpointReference.toString())) {
164 TubeFactoryList list = resolver.getFactories(getTubeline(appConfig, resolveReference(mapping.getTubelineRef())));
165 if (list != null) {
166 return list;
167 } else {
168 break;
169 }
170 }
171 }
172
173 if (appConfig.getTubelines().getDefault() != null) {
174 TubeFactoryList list = resolver.getFactories(getTubeline(appConfig, resolveReference(appConfig.getTubelines().getDefault())));
175 if (list != null) {
176 return list;
177 }
178 }
179 }
180
181 for (TubelineMapping mapping : defaultConfig.getTubelines().getTubelineMappings()) {
182 if (mapping.getEndpointRef().equals(endpointReference.toString())) {
183 TubeFactoryList list = resolver.getFactories(getTubeline(defaultConfig, resolveReference(mapping.getTubelineRef())));
184 if (list != null) {
185 return list;
186 } else {
187 break;
188 }
189 }
190 }
191
192 return resolver.getFactories(getTubeline(defaultConfig, resolveReference(defaultConfig.getTubelines().getDefault())));
193 }
194
195 TubelineDefinition getTubeline(MetroConfig config, URI tubelineDefinitionUri) {
196 if (config != null && config.getTubelines() != null) {
197 for (TubelineDefinition td : config.getTubelines().getTubelineDefinitions()) {
198 if (td.getName().equals(tubelineDefinitionUri.getFragment())) {
199 return td;
200 }
201 }
202 }
203
204 return null;
205 }
206
207 private static URI resolveReference(String reference) {
208 try {
209 return new URI(reference);
210 } catch (URISyntaxException ex) {
211 throw LOGGER.logSevereException(new WebServiceException(TubelineassemblyMessages.MASM_0008_INVALID_URI_REFERENCE(reference), ex));
212 }
213 }
214
215
216 private static URL locateResource(String resource, ResourceLoader loader) {
217 if (loader == null) return null;
218
219 try {
220 return loader.getResource(resource);
221 } catch (MalformedURLException ex) {
222 LOGGER.severe(TubelineassemblyMessages.MASM_0009_CANNOT_FORM_VALID_URL(resource), ex);
223 }
224 return null;
225 }
226
227 private static URL locateResource(String resource, ResourceLoader[] loaders) {
228
229 for (ResourceLoader loader : loaders) {
230 URL url = locateResource(resource, loader);
231 if (url != null) {
232 return url;
233 }
234 }
235 return null;
236 }
237
238 private static MetroConfig loadMetroConfig(@NotNull URL resourceUrl) {
239 MetroConfig result = null;
240 try {
241 JAXBContext jaxbContext = createJAXBContext();
242 Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
243 XMLInputFactory factory = XmlUtil.newXMLInputFactory(true);
244 final JAXBElement<MetroConfig> configElement = unmarshaller.unmarshal(factory.createXMLStreamReader(resourceUrl.openStream()), MetroConfig.class);
245 result = configElement.getValue();
246 } catch (Exception e) {
247 LOGGER.warning(TubelineassemblyMessages.MASM_0010_ERROR_READING_CFG_FILE_FROM_LOCATION(resourceUrl.toString()), e);
248 }
249 return result;
250 }
251
252 private static JAXBContext createJAXBContext() throws Exception {
253 if (isJDKInternal()) {
254 // since jdk classes are repackaged, extra privilege is necessary to create JAXBContext
255 return AccessController.doPrivileged(
256 new PrivilegedExceptionAction<JAXBContext>() {
257 @Override
258 public JAXBContext run() throws Exception {
259 return JAXBContext.newInstance(MetroConfig.class.getPackage().getName());
260 }
261 }, createSecurityContext()
262 );
263 } else {
264 // usage from JAX-WS/Metro/Glassfish
265 return JAXBContext.newInstance(MetroConfig.class.getPackage().getName());
266 }
267 }
268
269 private static AccessControlContext createSecurityContext() {
270 PermissionCollection perms = new Permissions();
271 perms.add(new RuntimePermission("accessClassInPackage.com" + ".sun.xml.internal.ws.runtime.config")); // avoid repackaging
272 perms.add(new ReflectPermission("suppressAccessChecks"));
273 return new AccessControlContext(
274 new ProtectionDomain[]{
275 new ProtectionDomain(null, perms),
276 });
277 }
278
279 private static boolean isJDKInternal() {
280 // avoid "string repackaging"
281 return MetroConfigLoader.class.getName().startsWith("com." + "sun.xml.internal.ws");
282 }
283
284 private static class MetroConfigUrlLoader extends ResourceLoader {
285
286 Container container; // TODO remove the field together with the code path using it (see below)
287 ResourceLoader parentLoader;
288
289 MetroConfigUrlLoader(ResourceLoader parentLoader) {
290 this.parentLoader = parentLoader;
291 }
292
293 MetroConfigUrlLoader(Container container) {
294 this((container != null) ? container.getSPI(ResourceLoader.class) : null);
295 this.container = container;
296 }
297
298 @Override
299 public URL getResource(String resource) throws MalformedURLException {
300 LOGGER.entering(resource);
301 URL resourceUrl = null;
302 try {
303 if (parentLoader != null) {
304 if (LOGGER.isLoggable(Level.FINE)) {
305 LOGGER.fine(TubelineassemblyMessages.MASM_0011_LOADING_RESOURCE(resource, parentLoader));
306 }
307
308 resourceUrl = parentLoader.getResource(resource);
309 }
310
311 if (resourceUrl == null) {
312 resourceUrl = loadViaClassLoaders("com/sun/xml/internal/ws/assembler/" + resource);
313 }
314
315 if (resourceUrl == null && container != null) {
316 // TODO: we should remove this code path, the config file should be loaded using ResourceLoader only
317 resourceUrl = loadFromServletContext(resource);
318 }
319
320 return resourceUrl;
321 } finally {
322 LOGGER.exiting(resourceUrl);
323 }
324 }
325
326 private static URL loadViaClassLoaders(final String resource) {
327 URL resourceUrl = tryLoadFromClassLoader(resource, Thread.currentThread().getContextClassLoader());
328 if (resourceUrl == null) {
329 resourceUrl = tryLoadFromClassLoader(resource, MetroConfigLoader.class.getClassLoader());
330 if (resourceUrl == null) {
331 return ClassLoader.getSystemResource(resource);
332 }
333 }
334
335 return resourceUrl;
336 }
337
338 private static URL tryLoadFromClassLoader(final String resource, final ClassLoader loader) {
339 return (loader != null) ? loader.getResource(resource) : null;
340 }
341
342 private URL loadFromServletContext(String resource) throws RuntimeException {
343 Object context = null;
344 try {
345 final Class<?> contextClass = Class.forName("javax.servlet.ServletContext");
346 context = container.getSPI(contextClass);
347 if (context != null) {
348 if (LOGGER.isLoggable(Level.FINE)) {
349 LOGGER.fine(TubelineassemblyMessages.MASM_0012_LOADING_VIA_SERVLET_CONTEXT(resource, context));
350 }
351 try {
352 final Method method = context.getClass().getMethod("getResource", String.class);
353 final Object result = method.invoke(context, "/WEB-INF/" + resource);
354 return URL.class.cast(result);
355 } catch (Exception e) {
356 throw LOGGER.logSevereException(new RuntimeException(TubelineassemblyMessages.MASM_0013_ERROR_INVOKING_SERVLET_CONTEXT_METHOD("getResource()")), e);
357 }
358 }
359 } catch (ClassNotFoundException e) {
360 if (LOGGER.isLoggable(Level.FINE)) {
361 LOGGER.fine(TubelineassemblyMessages.MASM_0014_UNABLE_TO_LOAD_CLASS("javax.servlet.ServletContext"));
362 }
363 }
364 return null;
365 }
366 }
367
368 }

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