javax.xml.xpath.XPathFactoryFinder类的使用及代码示例

x33g5p2x  于2022-02-03 转载在 其他  
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本文整理了Java中javax.xml.xpath.XPathFactoryFinder类的一些代码示例，展示了XPathFactoryFinder类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。XPathFactoryFinder类的具体详情如下：
包路径：javax.xml.xpath.XPathFactoryFinder
类名称：XPathFactoryFinder

XPathFactoryFinder介绍

[英]Implementation of XPathFactory#newInstance(String).
[中]XPathFactory#newInstance（字符串）的实现。

代码示例

代码示例来源：origin: robovm/robovm

  1. /**
  2.  * <p>Creates a new {@link XPathFactory} object for the specified
  3.  * schema language.</p>
  4.  *
  5.  * @param uri
  6.  *       Identifies the underlying object model.
  7.  *
  8.  * @return <code>null</code> if the callee fails to create one.
  9.  *
  10.  * @throws NullPointerException
  11.  *      If the parameter is null.
  12.  */
  13. public XPathFactory newFactory(String uri) {
  14.   if (uri == null) {
  15.     throw new NullPointerException("uri == null");
  16.   }
  17.   XPathFactory f = _newFactory(uri);
  18.   if (debug) {
  19.     if (f != null) {
  20.       debugPrintln("factory '" + f.getClass().getName() + "' was found for " + uri);
  21.     } else {
  22.       debugPrintln("unable to find a factory for " + uri);
  23.     }
  24.   }
  25.   return f;
  26. }

代码示例来源：origin: robovm/robovm

  1. if (debug) debugPrintln("Looking up system property '"+propertyName+"'" );
  2.   String r = System.getProperty(propertyName);
  3.   if (r != null && r.length() > 0) {
  4.     if (debug) debugPrintln("The value is '"+r+"'");
  5.     xpf = createInstance(r);
  6.     if(xpf!=null)    return xpf;
  7.   } else if (debug) {
  8.     debugPrintln("The property is undefined.");
  9.         firstTime = false;
  10.         if (f.exists()) {
  11.           if (debug) debugPrintln("Read properties file " + f);
  12.           cacheProps.load(new FileInputStream(f));
  13.   if (debug) debugPrintln("found " + factoryClassName + " in $java.home/jaxp.properties");
  14.     xpf = createInstance(factoryClassName);
  15.     if(xpf != null){
  16.       return xpf;
  17. for (URL resource : createServiceFileIterator()) {
  18.   if (debug) debugPrintln("looking into " + resource);
  19.   try {
  20.     xpf = loadFromServicesFile(uri, resource.toExternalForm(), resource.openStream());
  21.     if(xpf!=null)    return xpf;
  22.   } catch(IOException e) {
  23.     if( debug ) {
  24.       debugPrintln("failed to read "+resource);
  25.       e.printStackTrace();

代码示例来源：origin: robovm/robovm

  1. /**
  2.  * <p>Constructor that specifies <code>ClassLoader</code> to use
  3.  * to find <code>SchemaFactory</code>.</p>
  4.  *
  5.  * @param loader
  6.  *      to be used to load resource, {@link SchemaFactory}, and
  7.  *      {@code SchemaFactoryLoader} implementations during
  8.  *      the resolution process.
  9.  *      If this parameter is null, the default system class loader
  10.  *      will be used.
  11.  */
  12. public XPathFactoryFinder(ClassLoader loader) {
  13.   this.classLoader = loader;
  14.   if (debug) {
  15.     debugDisplayClassLoader();
  16.   }
  17. }

代码示例来源：origin: robovm/robovm

  1. if (debug) debugPrintln("instantiating "+className);
  2. Class clazz;
  3. if( classLoader!=null )
  4. else
  5.   clazz = Class.forName(className);
  6. if(debug)       debugPrintln("loaded it from "+which(clazz));
  7. Object o = clazz.newInstance();
  8.   return (XPathFactory)o;
  9. if (debug) debugPrintln(className+" is not assignable to "+SERVICE_CLASS.getName());
  10.   debugPrintln("failed to instantiate "+className);
  11.   t.printStackTrace();

代码示例来源：origin: robovm/robovm

  1. if (debug) debugPrintln("Reading " + resourceName );
  2.       XPathFactory foundFactory = createInstance(factoryClassName);
  3.       if (foundFactory.isObjectModelSupported(uri)) {
  4.         resultFactory = foundFactory;

代码示例来源：origin: robovm/robovm

  1. classLoader = Thread.currentThread().getContextClassLoader();
  2. XPathFactory xpathFactory = new XPathFactoryFinder(classLoader).createInstance(factoryClassName);
  3. if (xpathFactory == null || !xpathFactory.isObjectModelSupported(uri)) {
  4.   throw new XPathFactoryConfigurationException(

代码示例来源：origin: robovm/robovm

  1. XPathFactory xpathFactory = new XPathFactoryFinder(classLoader).newFactory(uri);
  2. if (xpathFactory == null) {
  3.   throw new XPathFactoryConfigurationException(

代码示例来源：origin: robovm/robovm

  1. private void debugDisplayClassLoader() {
  2.   if (classLoader == Thread.currentThread().getContextClassLoader()) {
  3.     debugPrintln("using thread context class loader (" + classLoader + ") for search");
  4.     return;
  5.   }
  6.   if (classLoader==ClassLoader.getSystemClassLoader()) {
  7.     debugPrintln("using system class loader (" + classLoader + ") for search");
  8.     return;
  9.   }
  10.   debugPrintln("using class loader (" + classLoader + ") for search");
  11. }

代码示例来源：origin: javax.xml.parsers/jaxp-api

  1. debugPrintln("Looking up system property '"+propertyName+"'" );
  2.   String r = ss.getSystemProperty(propertyName);
  3.   if(r!=null) {
  4.     debugPrintln("The value is '"+r+"'");
  5.     xpathFactory = createInstance(r);
  6.     if(xpathFactory != null)    return xpathFactory;
  7.   } else
  8.     debugPrintln("The property is undefined.");
  9. } catch( Throwable t ) {
  10.   if( debug ) {
  11.     debugPrintln("failed to look up system property '"+propertyName+"'" );
  12.     t.printStackTrace();
  13.         firstTime = false;
  14.         if(ss.doesFileExist(f)){
  15.           debugPrintln("Read properties file " + f);                                
  16.           cacheProps.load(ss.getFileInputStream(f));
  17.   debugPrintln("found " + factoryClassName + " in $java.home/jaxp.properties"); 
  18.     xpathFactory = createInstance(factoryClassName);
  19.     if(xpathFactory != null){
  20.       return xpathFactory;
  21. Iterator sitr = createServiceFileIterator();
  22. while(sitr.hasNext()) {
  23.   URL resource = (URL)sitr.next();
  24.   debugPrintln("looking into " + resource);
  25.   try {

代码示例来源：origin: robovm/robovm

  1. private static String which( Class clazz ) {
  2.   return which( clazz.getName(), clazz.getClassLoader() );
  3. }

代码示例来源：origin: javax.xml.parsers/jaxp-api

  1. XPathFactory xPathFactory = null;
  2. debugPrintln("createInstance(" + className + ")");
  3. Class clazz = createClass(className);
  4. if (clazz == null) {
  5.     debugPrintln("failed to getClass(" + className + ")");
  6.     return null;	
  7. debugPrintln("loaded " + className + " from " + which(clazz));
  8.     xPathFactory = (XPathFactory) clazz.newInstance();
  9. } catch (ClassCastException classCastException) {
  10.     debugPrintln("could not instantiate " + clazz.getName());
  11.     if (debug) {
  12.         classCastException.printStackTrace();
  13.     debugPrintln("could not instantiate " + clazz.getName());
  14.     if (debug) {
  15.         illegalAccessException.printStackTrace();
  16.     debugPrintln("could not instantiate " + clazz.getName());
  17.     if (debug) {
  18.         instantiationException.printStackTrace();

代码示例来源：origin: javax.xml.parsers/jaxp-api

  1. final String isObjectModelSupportedMethod = "isObjectModelSupported";
  2. debugPrintln("Reading " + inputName);
  3.     Class clazz = createClass(line);
  4.     if (clazz == null) {
  5.         continue;

代码示例来源：origin: javax.xml.parsers/jaxp-api

  1. /**
  2.  * Looks up a value in a property file
  3.  * while producing all sorts of debug messages.
  4.  * 
  5.  * @return null
  6.  *      if there was an error.
  7.  */
  8. private XPathFactory loadFromProperty( String keyName, String resourceName, InputStream in )
  9.   throws IOException {
  10.   debugPrintln("Reading "+resourceName );
  11.   
  12.   Properties props = new Properties();
  13.   props.load(in);
  14.   in.close();
  15.   String factoryClassName = props.getProperty(keyName);
  16.   if(factoryClassName != null){
  17.     debugPrintln("found "+keyName+" = " + factoryClassName);
  18.     return createInstance(factoryClassName);
  19.   } else {
  20.     debugPrintln(keyName+" is not in the property file");
  21.     return null;
  22.   }
  23. }

代码示例来源：origin: org.apache.servicemix.specs/org.apache.servicemix.specs.jaxp-api-1.4

  1. if (debug) debugPrintln("instanciating "+className);
  2.   Class clazz;
  3.   if( classLoader!=null )
  4.   else
  5.     clazz = Class.forName(className);
  6.   if(debug)       debugPrintln("loaded it from "+which(clazz));
  7.   Object o = clazz.newInstance();
  8.     return (XPathFactory)o;
  9.   if (debug) debugPrintln(className+" is not assignable to "+SERVICE_CLASS.getName());
  10. } catch( Throwable t ) {
  11.   if (debug) {
  12.     debugPrintln("failed to instanciate "+className);
  13.     t.printStackTrace();

代码示例来源：origin: MobiVM/robovm

  1. classLoader = Thread.currentThread().getContextClassLoader();
  2. XPathFactory xpathFactory = new XPathFactoryFinder(classLoader).createInstance(factoryClassName);
  3. if (xpathFactory == null || !xpathFactory.isObjectModelSupported(uri)) {
  4.   throw new XPathFactoryConfigurationException(

代码示例来源：origin: MobiVM/robovm

  1. XPathFactory xpathFactory = new XPathFactoryFinder(classLoader).newFactory(uri);
  2. if (xpathFactory == null) {
  3.   throw new XPathFactoryConfigurationException(

代码示例来源：origin: robovm/robovm

  1. /**
  2.  * Returns an {@link Iterator} that enumerates all
  3.  * the META-INF/services files that we care.
  4.  */
  5. private Iterable<URL> createServiceFileIterator() {
  6.   if (classLoader == null) {
  7.     URL resource = XPathFactoryFinder.class.getClassLoader().getResource(SERVICE_ID);
  8.     return Collections.singleton(resource);
  9.   } else {
  10.     try {
  11.       Enumeration<URL> e = classLoader.getResources(SERVICE_ID);
  12.       if (debug && !e.hasMoreElements()) {
  13.         debugPrintln("no "+SERVICE_ID+" file was found");
  14.       }
  15.       return Collections.list(e);
  16.     } catch (IOException e) {
  17.       if (debug) {
  18.         debugPrintln("failed to enumerate resources "+SERVICE_ID);
  19.         e.printStackTrace();
  20.       }
  21.       return Collections.emptySet();
  22.     }
  23.   }
  24. }

代码示例来源：origin: MobiVM/robovm

  1. private static String which( Class clazz ) {
  2.   return which( clazz.getName(), clazz.getClassLoader() );
  3. }

代码示例来源：origin: MobiVM/robovm

  1. if (debug) debugPrintln("Looking up system property '"+propertyName+"'" );
  2.   String r = System.getProperty(propertyName);
  3.   if (r != null && r.length() > 0) {
  4.     if (debug) debugPrintln("The value is '"+r+"'");
  5.     xpf = createInstance(r);
  6.     if(xpf!=null)    return xpf;
  7.   } else if (debug) {
  8.     debugPrintln("The property is undefined.");
  9.         firstTime = false;
  10.         if (f.exists()) {
  11.           if (debug) debugPrintln("Read properties file " + f);
  12.           cacheProps.load(new FileInputStream(f));
  13.   if (debug) debugPrintln("found " + factoryClassName + " in $java.home/jaxp.properties");
  14.     xpf = createInstance(factoryClassName);
  15.     if(xpf != null){
  16.       return xpf;
  17. for (URL resource : createServiceFileIterator()) {
  18.   if (debug) debugPrintln("looking into " + resource);
  19.   try {
  20.     xpf = loadFromServicesFile(uri, resource.toExternalForm(), resource.openStream());
  21.     if(xpf!=null)    return xpf;
  22.   } catch(IOException e) {
  23.     if( debug ) {
  24.       debugPrintln("failed to read "+resource);
  25.       e.printStackTrace();

代码示例来源：origin: javax.xml.parsers/jaxp-api

  1. /**
  2.  * <p>Creates a new {@link XPathFactory} object for the specified
  3.  * schema language.</p>
  4.  * 
  5.  * @param uri
  6.  *       Identifies the underlying object model.
  7.  * 
  8.  * @return <code>null</code> if the callee fails to create one.
  9.  * 
  10.  * @throws NullPointerException
  11.  *      If the parameter is null.
  12.  */
  13. public XPathFactory newFactory(String uri) {
  14.   if(uri==null)        throw new NullPointerException();
  15.   XPathFactory f = _newFactory(uri);
  16.   if (f != null) {
  17.     debugPrintln("factory '" + f.getClass().getName() + "' was found for " + uri);
  18.   } else {
  19.     debugPrintln("unable to find a factory for " + uri);
  20.   }
  21.   return f;
  22. }

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