java.net.URLStreamHandlerFactory Java Examples

/**
 * Creates a new URLClassPath for the given URLs. The URLs will be
 * searched in the order specified for classes and resources. A URL
 * ending with a '/' is assumed to refer to a directory. Otherwise,
 * the URL is assumed to refer to a JAR file.
 *
 * @param urls the directory and JAR file URLs to search for classes
 *        and resources
 * @param factory the URLStreamHandlerFactory to use when creating new URLs
 * @param acc the context to be used when loading classes and resources, may
 *            be null
 */
public URLClassPath(URL[] urls,
                    URLStreamHandlerFactory factory,
                    AccessControlContext acc) {
    for (int i = 0; i < urls.length; i++) {
        path.add(urls[i]);
    }
    push(urls);
    if (factory != null) {
        jarHandler = factory.createURLStreamHandler("jar");
    }
    if (DISABLE_ACC_CHECKING)
        this.acc = null;
    else
        this.acc = acc;
}
 

/**
 * Creates a new URLClassPath for the given URLs. The URLs will be
 * searched in the order specified for classes and resources. A URL
 * ending with a '/' is assumed to refer to a directory. Otherwise,
 * the URL is assumed to refer to a JAR file.
 *
 * @param urls the directory and JAR file URLs to search for classes
 *        and resources
 * @param factory the URLStreamHandlerFactory to use when creating new URLs
 * @param acc the context to be used when loading classes and resources, may
 *            be null
 */
public URLClassPath(URL[] urls,
                    URLStreamHandlerFactory factory,
                    AccessControlContext acc) {
    for (int i = 0; i < urls.length; i++) {
        path.add(urls[i]);
    }
    push(urls);
    if (factory != null) {
        jarHandler = factory.createURLStreamHandler("jar");
    }
    if (DISABLE_ACC_CHECKING)
        this.acc = null;
    else
        this.acc = acc;
}
 

/**
 * Returns an URL stream handler for an URL specified as a <code>String</code>.
 * 
 * @param spec the <code>String</code> to parse as an URL
 * @param urlHandlerFact an URL stream handler factory
 * @return an URL stream handler if one was found for the protocol of the URL
 */
public static URLStreamHandler getURLHandler(String spec, URLStreamHandlerFactory urlHandlerFact)
{
	URLStreamHandlerFactory urlHandlerFactory = urlHandlerFact;//getURLHandlerFactory(urlHandlerFact);

	URLStreamHandler handler = null;
	if (urlHandlerFactory != null)
	{
		String protocol = getURLProtocol(spec);
		if (protocol != null)
		{
			handler = urlHandlerFactory.createURLStreamHandler(protocol);
		}
	}
	return handler;
}
 

/**
 * Creates a URL from the specified protocol name, host name, port number,
 * and file name.
 * <p/>
 * No validation of the inputs is performed by this method.
 *
 * @param protocol the name of the protocol to use
 * @param host     the name of the host
 * @param port     the port number
 * @param file     the file on the host
 * @return URL created using specified protocol, host, and file
 * @throws MalformedURLException if an unknown protocol is specified
 */
public static URL createURL(String protocol,
                            String host,
                            int port,
                            String file) throws MalformedURLException {
    URLStreamHandlerFactory factory = _factories.get(protocol);

    // If there is no URLStreamHandlerFactory registered for the
    // scheme/protocol, then we just use the regular URL constructor.
    if (factory == null) {
        return new URL(protocol, host, port, file);
    }

    // If there is a URLStreamHandlerFactory associated for the
    // scheme/protocol, then we create a URLStreamHandler. And, then use
    // then use the URLStreamHandler to create a URL.
    URLStreamHandler handler = factory.createURLStreamHandler(protocol);
    return new URL(protocol, host, port, file, handler);
}
 

/**
 * Creates a new URLStreamHandler instance with the specified protocol.
 * Will return null if the protocol is not <code>jndi</code>.
 * 
 * @param protocol the protocol (must be "jndi" here)
 * @return a URLStreamHandler for the jndi protocol, or null if the 
 * protocol is not JNDI
 */
@Override
public URLStreamHandler createURLStreamHandler(String protocol) {
    if (protocol.equals("jndi")) {
        return new DirContextURLStreamHandler();
    } else if (protocol.equals("classpath")) {
        return new ClasspathURLStreamHandler();
    } else {
        for (URLStreamHandlerFactory factory : userFactories) {
            URLStreamHandler handler =
                factory.createURLStreamHandler(protocol);
            if (handler != null) {
                return handler;
            }
        }
        return null;
    }
}
 

/**
 * Release references to any user provided factories that have been loaded
 * using the provided class loader. Called during web application stop to
 * prevent memory leaks.
 *
 * @param classLoader The class loader to release
 */
public static void release(ClassLoader classLoader) {
    if (instance == null) {
        return;
    }
    List<URLStreamHandlerFactory> factories = instance.userFactories;
    for (URLStreamHandlerFactory factory : factories) {
        ClassLoader factoryLoader = factory.getClass().getClassLoader();
        while (factoryLoader != null) {
            if (classLoader.equals(factoryLoader)) {
                // Implementation note: userFactories is a
                // CopyOnWriteArrayList, so items are removed with
                // List.remove() instead of usual Iterator.remove()
                factories.remove(factory);
                break;
            }
            factoryLoader = factoryLoader.getParent();
        }
    }
}
 

/**
 * Creates a new URLClassPath for the given URLs. The URLs will be
 * searched in the order specified for classes and resources. A URL
 * ending with a '/' is assumed to refer to a directory. Otherwise,
 * the URL is assumed to refer to a JAR file.
 *
 * @param urls the directory and JAR file URLs to search for classes
 *        and resources
 * @param factory the URLStreamHandlerFactory to use when creating new URLs
 * @param acc the context to be used when loading classes and resources, may
 *            be null
 */
public URLClassPath(URL[] urls,
                    URLStreamHandlerFactory factory,
                    AccessControlContext acc) {
    for (int i = 0; i < urls.length; i++) {
        path.add(urls[i]);
    }
    push(urls);
    if (factory != null) {
        jarHandler = factory.createURLStreamHandler("jar");
    }
    if (DISABLE_ACC_CHECKING)
        this.acc = null;
    else
        this.acc = acc;
}
 

/**
 * Creates a new URLClassPath for the given URLs. The URLs will be
 * searched in the order specified for classes and resources. A URL
 * ending with a '/' is assumed to refer to a directory. Otherwise,
 * the URL is assumed to refer to a JAR file.
 *
 * @param urls the directory and JAR file URLs to search for classes
 *        and resources
 * @param factory the URLStreamHandlerFactory to use when creating new URLs
 * @param acc the context to be used when loading classes and resources, may
 *            be null
 */
public URLClassPath(URL[] urls,
                    URLStreamHandlerFactory factory,
                    AccessControlContext acc) {
    for (int i = 0; i < urls.length; i++) {
        path.add(urls[i]);
    }
    push(urls);
    if (factory != null) {
        jarHandler = factory.createURLStreamHandler("jar");
    }
    if (DISABLE_ACC_CHECKING)
        this.acc = null;
    else
        this.acc = acc;
}
 

/**
 * Creates a new URLClassPath for the given URLs. The URLs will be
 * searched in the order specified for classes and resources. A URL
 * ending with a '/' is assumed to refer to a directory. Otherwise,
 * the URL is assumed to refer to a JAR file.
 *
 * @param urls the directory and JAR file URLs to search for classes
 *        and resources
 * @param factory the URLStreamHandlerFactory to use when creating new URLs
 * @param acc the context to be used when loading classes and resources, may
 *            be null
 */
public URLClassPath(URL[] urls,
                    URLStreamHandlerFactory factory,
                    AccessControlContext acc) {
    for (int i = 0; i < urls.length; i++) {
        path.add(urls[i]);
    }
    push(urls);
    if (factory != null) {
        jarHandler = factory.createURLStreamHandler("jar");
    }
    if (DISABLE_ACC_CHECKING)
        this.acc = null;
    else
        this.acc = acc;
}
 

/**
 * Creates a new URLClassPath for the given URLs. The URLs will be
 * searched in the order specified for classes and resources. A URL
 * ending with a '/' is assumed to refer to a directory. Otherwise,
 * the URL is assumed to refer to a JAR file.
 *
 * @param urls the directory and JAR file URLs to search for classes
 *        and resources
 * @param factory the URLStreamHandlerFactory to use when creating new URLs
 * @param acc the context to be used when loading classes and resources, may
 *            be null
 */
public URLClassPath(URL[] urls,
                    URLStreamHandlerFactory factory,
                    AccessControlContext acc) {
    ArrayList<URL> path = new ArrayList<>(urls.length);
    ArrayDeque<URL> unopenedUrls = new ArrayDeque<>(urls.length);
    for (URL url : urls) {
        path.add(url);
        unopenedUrls.add(url);
    }
    this.path = path;
    this.unopenedUrls = unopenedUrls;

    if (factory != null) {
        jarHandler = factory.createURLStreamHandler("jar");
    } else {
        jarHandler = null;
    }
    if (DISABLE_ACC_CHECKING)
        this.acc = null;
    else
        this.acc = acc;
}
 

@BeforeClass
public static void setupMavenUrlHandler() {
    try {
        new URL("mvn:foo/bar");
    } catch (MalformedURLException e) {
        // handles mvn local repository
        String mvnLocalRepo = System.getProperty("maven.repo.local");
        if (mvnLocalRepo != null) {
            System.setProperty("org.ops4j.pax.url.mvn.localRepository", mvnLocalRepo);
        }
        URL.setURLStreamHandlerFactory(new URLStreamHandlerFactory() {

            @Override
            public URLStreamHandler createURLStreamHandler(String protocol) {
                if (ServiceConstants.PROTOCOL.equals(protocol)) {
                    return new Handler();
                } else {
                    return null;
                }
            }
        });
    }
}
 

/**
 * Creates a new URLClassPath for the given URLs. The URLs will be
 * searched in the order specified for classes and resources. A URL
 * ending with a '/' is assumed to refer to a directory. Otherwise,
 * the URL is assumed to refer to a JAR file.
 *
 * @param urls the directory and JAR file URLs to search for classes
 *        and resources
 * @param factory the URLStreamHandlerFactory to use when creating new URLs
 * @param acc the context to be used when loading classes and resources, may
 *            be null
 */
public URLClassPath(URL[] urls,
                    URLStreamHandlerFactory factory,
                    AccessControlContext acc) {
    for (int i = 0; i < urls.length; i++) {
        path.add(urls[i]);
    }
    push(urls);
    if (factory != null) {
        jarHandler = factory.createURLStreamHandler("jar");
    }
    if (DISABLE_ACC_CHECKING)
        this.acc = null;
    else
        this.acc = acc;
}
 

/**
 * Creates a new URLStreamHandler instance with the specified protocol.
 * Will return null if the protocol is not <code>jndi</code>.
 * 
 * @param protocol the protocol (must be "jndi" here)
 * @return a URLStreamHandler for the jndi protocol, or null if the 
 * protocol is not JNDI
 */
@Override
public URLStreamHandler createURLStreamHandler(String protocol) {
    if (protocol.equals("jndi")) {
        return new DirContextURLStreamHandler();
    } else if (protocol.equals("classpath")) {
        return new ClasspathURLStreamHandler();
    } else {
        for (URLStreamHandlerFactory factory : userFactories) {
            URLStreamHandler handler =
                factory.createURLStreamHandler(protocol);
            if (handler != null) {
                return handler;
            }
        }
        return null;
    }
}
 

@BeforeClass
public static void setupMavenUrlHandler() {
    try {
        new URL("mvn:foo/bar");
    } catch (MalformedURLException e) {
        // handles mvn local repository
        String mvnLocalRepo = System.getProperty("maven.repo.local");
        if (mvnLocalRepo != null) {
            System.setProperty("org.ops4j.pax.url.mvn.localRepository", mvnLocalRepo);
        }
        URL.setURLStreamHandlerFactory(new URLStreamHandlerFactory() {

            @Override
            public URLStreamHandler createURLStreamHandler(String protocol) {
                if (ServiceConstants.PROTOCOL.equals(protocol)) {
                    return new Handler();
                } else {
                    return null;
                }
            }
        });
    }
}
 

/**
 * Creates a new URLClassPath for the given URLs. The URLs will be
 * searched in the order specified for classes and resources. A URL
 * ending with a '/' is assumed to refer to a directory. Otherwise,
 * the URL is assumed to refer to a JAR file.
 *
 * @param urls the directory and JAR file URLs to search for classes
 *        and resources
 * @param factory the URLStreamHandlerFactory to use when creating new URLs
 * @param acc the context to be used when loading classes and resources, may
 *            be null
 */
public URLClassPath(URL[] urls,
                    URLStreamHandlerFactory factory,
                    AccessControlContext acc) {
    for (int i = 0; i < urls.length; i++) {
        path.add(urls[i]);
    }
    push(urls);
    if (factory != null) {
        jarHandler = factory.createURLStreamHandler("jar");
    }
    if (DISABLE_ACC_CHECKING)
        this.acc = null;
    else
        this.acc = acc;
}
 

@Test
public void testUserFactory() throws Exception {
    URLStreamHandlerFactory factory = new URLStreamHandlerFactory() {
        @Override
        public URLStreamHandler createURLStreamHandler(String protocol) {
            return null;
        }
    };
    TomcatURLStreamHandlerFactory.getInstance().addUserFactory(factory);
    TomcatURLStreamHandlerFactory.release(factory.getClass().getClassLoader());
}
 

public URLStreamHandler createURLStreamHandler(final String protocol) {
  final Collection<URLStreamHandlerFactory> factories = this.factories;
  synchronized (factories) {
    for (final URLStreamHandlerFactory f : factories) {
      final URLStreamHandler handler = f.createURLStreamHandler(protocol);
      if (handler != null) {
        return handler;
      }
    }
  }
  return null;
}
 

/**
 * Sets the URL stream handler factory for the environment. This
 * allows specification of the factory used in creating underlying
 * stream handlers. This can be called once per JVM instance.
 *
 * @param factory
 *            The URL stream handler factory.
 */
public static void setURLStreamHandlerFactory ( URLStreamHandlerFactory factory ) {
    synchronized ( PROTOCOL_HANDLERS ) {
        if ( Handler.factory != null ) {
            throw new IllegalStateException("URLStreamHandlerFactory already set.");
        }
        PROTOCOL_HANDLERS.clear();
        Handler.factory = factory;
    }
}
 

/**
 * Sets the URL stream handler factory for the environment.  This
 * allows specification of the factory used in creating underlying
 * stream handlers.  This can be called once per JVM instance.
 *
 * @param factory The URL stream handler factory.
 */
public static void setURLStreamHandlerFactory(
        URLStreamHandlerFactory factory) {
    synchronized (PROTOCOL_HANDLERS) {
        if (Handler.factory != null) {
            throw new IllegalStateException(
                    "URLStreamHandlerFactory already set.");
        }
        PROTOCOL_HANDLERS.clear();
        Handler.factory = factory;
    }
}
 

/**
 *
 */
@SuppressWarnings("deprecation")
protected void ensureJasperReportsContext()
{
	if (
		parameters.containsKey(JRExporterParameter.CLASS_LOADER)
		|| parameters.containsKey(JRExporterParameter.URL_HANDLER_FACTORY)
		)
	{
		net.sf.jasperreports.engine.util.LocalJasperReportsContext localJasperReportsContext = 
			new net.sf.jasperreports.engine.util.LocalJasperReportsContext(jasperReportsContext);

		if (parameters.containsKey(JRExporterParameter.CLASS_LOADER))
		{
			localJasperReportsContext.setClassLoader((ClassLoader)parameters.get(JRExporterParameter.CLASS_LOADER));
		}

		if (parameters.containsKey(JRExporterParameter.URL_HANDLER_FACTORY))
		{
			localJasperReportsContext.setURLStreamHandlerFactory((URLStreamHandlerFactory)parameters.get(JRExporterParameter.URL_HANDLER_FACTORY));
		}

		setJasperReportsContext(localJasperReportsContext);
	}
	
	FontUtil.getInstance(jasperReportsContext).resetThreadMissingFontsCache();
}
 

@BeforeClass
public static void onlyOnce() throws Throwable {
  mockHttpURLConnection = mock(HttpURLConnection.class);
  URL.setURLStreamHandlerFactory(new URLStreamHandlerFactory() {
    @Override
    public URLStreamHandler createURLStreamHandler(final String s) {
      return s.equals(TEST_PROTOCOL) ? new URLStreamHandler() {
        @Override
        protected URLConnection openConnection(final URL url) throws IOException {
          return mockHttpURLConnection;
        }
      } : null;
    }
  });
}
 

/**
 * Sets the URL stream handler factory for the environment. This
 * allows specification of the factory used in creating underlying
 * stream handlers. This can be called once per JVM instance.
 *
 * @param factory
 *            The URL stream handler factory.
 */
public static void setURLStreamHandlerFactory ( URLStreamHandlerFactory factory ) {
    synchronized ( PROTOCOL_HANDLERS ) {
        if ( Handler.factory != null ) {
            throw new IllegalStateException("URLStreamHandlerFactory already set.");
        }
        PROTOCOL_HANDLERS.clear();
        Handler.factory = factory;
    }
}
 

@Override
public void resultChanged(LookupEvent ev) {
    Collection<? extends URLStreamHandlerFactory> c = r.allInstances();
    synchronized (this) {
        handlers = c.toArray(new URLStreamHandlerFactory[c.size()]);
    }
}
 

@BeforeClass
public static void setupURLStreamHandlerFactory() {
    // Allows for mocking URL connections
    URLStreamHandlerFactory urlStreamHandlerFactory = mock(URLStreamHandlerFactory.class);
    URL.setURLStreamHandlerFactory(urlStreamHandlerFactory);

    httpUrlStreamHandler = new HttpUrlStreamHandler();
    when(urlStreamHandlerFactory.createURLStreamHandler("http")).thenReturn(httpUrlStreamHandler);
    when(urlStreamHandlerFactory.createURLStreamHandler("https")).thenReturn(httpUrlStreamHandler);
}
 

public void addFactory(final URLStreamHandlerFactory factory) {
  final SecurityManager sm = System.getSecurityManager();
  if (sm != null) {
    sm.checkSetFactory();
  }
  final Collection<URLStreamHandlerFactory> factories = this.factories;
  synchronized (factories) {
    factories.add(factory);
  }
}
 

private ProxyURLStreamHandlerFactory(URLStreamHandlerFactory delegate) {
    this.delegate = delegate;
    LOG.log(Level.FINE, "new ProxyURLStreamHandlerFactory. delegate={0} originalJarHandler={1}", new Object[]{delegate, originalJarHandler});
}
 

/**
 *
 */
public void setURLStreamHandlerFactory(URLStreamHandlerFactory urlHandlerFactory)
{
	getLocalRepositoryService().setURLStreamHandlerFactory(urlHandlerFactory);
}
 

/**
 * @deprecated To be removed.
 */
public void setUrlHandlerFactory(URLStreamHandlerFactory urlHandlerFactory)
{
	this.urlHandlerFactory = urlHandlerFactory;
}
 

public void addURLStreamHandlerFactory(final URLStreamHandlerFactory factory) {
  // TODO: Since extensions are intialized in parallel,
  // this is not necessarily done in order of priority.
  StreamHandlerFactory.getInstance().addFactory(factory);
}
 

public void testNonAdvisoryNetworkRequestReplyXmlConfig() throws Exception {
   final String xmlConfigString = new String("<beans" +
                                                " xmlns=\"http://www.springframework.org/schema/beans\"" +
                                                " xmlns:amq=\"http://activemq.apache.org/schema/core\"" +
                                                " xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"" +
                                                " xsi:schemaLocation=\"http://www.springframework.org/schema/beans" +
                                                " http://www.springframework.org/schema/beans/spring-beans-2.0.xsd" +
                                                " http://activemq.apache.org/schema/core" +
                                                " http://activemq.apache.org/schema/core/activemq-core.xsd\">" +
                                                "  <broker xmlns=\"http://activemq.apache.org/schema/core\" id=\"broker\"" +
                                                "    allowTempAutoCreationOnSend=\"true\" schedulePeriodForDestinationPurge=\"1000\"" +
                                                "    brokerName=\"%HOST%\" persistent=\"false\" advisorySupport=\"false\" useJmx=\"false\" >" +
                                                "   <destinationPolicy>" +
                                                "    <policyMap>" +
                                                "     <policyEntries>" +
                                                "      <policyEntry optimizedDispatch=\"true\"  gcInactiveDestinations=\"true\" gcWithNetworkConsumers=\"true\" inactiveTimoutBeforeGC=\"1000\">" +
                                                "       <destination>" +
                                                "        <tempQueue physicalName=\"" + replyQWildcard.getPhysicalName() + "\"/>" +
                                                "       </destination>" +
                                                "      </policyEntry>" +
                                                "     </policyEntries>" +
                                                "    </policyMap>" +
                                                "   </destinationPolicy>" +
                                                "   <networkConnectors>" +
                                                "    <networkConnector uri=\"multicast://default\">" +
                                                "     <staticallyIncludedDestinations>" +
                                                "      <queue physicalName=\"" + sendQ.getPhysicalName() + "\"/>" +
                                                "      <tempQueue physicalName=\"" + replyQWildcard.getPhysicalName() + "\"/>" +
                                                "     </staticallyIncludedDestinations>" +
                                                "    </networkConnector>" +
                                                "   </networkConnectors>" +
                                                "   <transportConnectors>" +
                                                "     <transportConnector uri=\"tcp://0.0.0.0:0\" discoveryUri=\"multicast://default\" />" +
                                                "   </transportConnectors>" +
                                                "  </broker>" +
                                                "</beans>");
   final String localProtocolScheme = "inline";
   URL.setURLStreamHandlerFactory(new URLStreamHandlerFactory() {
      @Override
      public URLStreamHandler createURLStreamHandler(String protocol) {
         if (localProtocolScheme.equalsIgnoreCase(protocol)) {
            return new URLStreamHandler() {
               @Override
               protected URLConnection openConnection(URL u) throws IOException {
                  return new URLConnection(u) {
                     @Override
                     public void connect() throws IOException {
                     }

                     @Override
                     public InputStream getInputStream() throws IOException {
                        return new ByteArrayInputStream(xmlConfigString.replace("%HOST%", url.getFile()).getBytes(StandardCharsets.UTF_8));
                     }
                  };
               }
            };
         }
         return null;
      }
   });
   a = new XBeanBrokerFactory().createBroker(new URI("xbean:" + localProtocolScheme + ":A"));
   b = new XBeanBrokerFactory().createBroker(new URI("xbean:" + localProtocolScheme + ":B"));
   brokers.add(a);
   brokers.add(b);

   doTestNonAdvisoryNetworkRequestReply();
}