Package org.apache.felix.framework

Class URLHandlersStreamHandlerProxy

  • All Implemented Interfaces:
    java.lang.reflect.InvocationHandler, URLStreamHandlerSetter
    public class URLHandlersStreamHandlerProxy
extends java.net.URLStreamHandler
implements URLStreamHandlerSetter, java.lang.reflect.InvocationHandler

    This class implements a stream handler proxy. When the stream handler proxy instance is created, it is associated with a particular protocol and will answer all future requests for handling of that stream type. It does not directly handle the stream handler requests, but delegates the requests to an underlying stream handler service.

    The proxy instance for a particular protocol is used for all framework instances that may contain their own stream handler services. When performing a stream handler operation, the proxy retrieves the handler service from the framework instance associated with the current call stack and delegates the call to the handler service.

    The proxy will create simple stream handler service trackers for each framework instance. The trackers will listen to service events in its respective framework instance to maintain a reference to the "best" stream handler service at any given time.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      protected boolean equals​(java.net.URL url1, java.net.URL url2)  
      protected int getDefaultPort()  
      protected java.net.InetAddress getHostAddress​(java.net.URL url)  
      protected int hashCode​(java.net.URL url)  
      protected boolean hostsEqual​(java.net.URL url1, java.net.URL url2)  
      java.lang.Object invoke​(java.lang.Object obj, java.lang.reflect.Method method, java.lang.Object[] params)  
      protected java.net.URLConnection openConnection​(java.net.URL url)  
      protected java.net.URLConnection openConnection​(java.net.URL url, java.net.Proxy proxy)  
      protected void parseURL​(java.net.URL url, java.lang.String spec, int start, int limit)  
      protected boolean sameFile​(java.net.URL url1, java.net.URL url2)  
      void setURL​(java.net.URL url, java.lang.String protocol, java.lang.String host, int port, java.lang.String file, java.lang.String ref)  
      void setURL​(java.net.URL url, java.lang.String protocol, java.lang.String host, int port, java.lang.String authority, java.lang.String userInfo, java.lang.String path, java.lang.String query, java.lang.String ref)  
      protected java.lang.String toExternalForm​(java.net.URL url)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • URLHandlersStreamHandlerProxy

        public URLHandlersStreamHandlerProxy​(java.lang.String protocol,
                                     SecureAction action,
                                     java.net.URLStreamHandler builtIn,
                                     java.net.URL builtInURL)

    • Method Detail

      • equals

        protected boolean equals​(java.net.URL url1,
                         java.net.URL url2)
        Overrides:
        equals in class java.net.URLStreamHandler

      • getDefaultPort

        protected int getDefaultPort()
        Overrides:
        getDefaultPort in class java.net.URLStreamHandler

      • getHostAddress

        protected java.net.InetAddress getHostAddress​(java.net.URL url)
        Overrides:
        getHostAddress in class java.net.URLStreamHandler

      • hashCode

        protected int hashCode​(java.net.URL url)
        Overrides:
        hashCode in class java.net.URLStreamHandler

      • hostsEqual

        protected boolean hostsEqual​(java.net.URL url1,
                             java.net.URL url2)
        Overrides:
        hostsEqual in class java.net.URLStreamHandler

      • openConnection

        protected java.net.URLConnection openConnection​(java.net.URL url)
                                         throws java.io.IOException
        Specified by:
        openConnection in class java.net.URLStreamHandler
        Throws:
        java.io.IOException

      • openConnection

        protected java.net.URLConnection openConnection​(java.net.URL url,
                                                java.net.Proxy proxy)
                                         throws java.io.IOException
        Overrides:
        openConnection in class java.net.URLStreamHandler
        Throws:
        java.io.IOException

      • parseURL

        protected void parseURL​(java.net.URL url,
                        java.lang.String spec,
                        int start,
                        int limit)
        Overrides:
        parseURL in class java.net.URLStreamHandler

      • sameFile

        protected boolean sameFile​(java.net.URL url1,
                           java.net.URL url2)
        Overrides:
        sameFile in class java.net.URLStreamHandler

      • setURL

        public void setURL​(java.net.URL url,
                   java.lang.String protocol,
                   java.lang.String host,
                   int port,
                   java.lang.String authority,
                   java.lang.String userInfo,
                   java.lang.String path,
                   java.lang.String query,
                   java.lang.String ref)
        Specified by:
        setURL in interface URLStreamHandlerSetter
        Overrides:
        setURL in class java.net.URLStreamHandler
        See Also:
        "java.net.URLStreamHandler.setURL(URL,String,String,int,String,String,String,String)"

      • setURL

        public void setURL​(java.net.URL url,
                   java.lang.String protocol,
                   java.lang.String host,
                   int port,
                   java.lang.String file,
                   java.lang.String ref)
        Specified by:
        setURL in interface URLStreamHandlerSetter
        Overrides:
        setURL in class java.net.URLStreamHandler
        See Also:
        "java.net.URLStreamHandler.setURL(URL,String,String,int,String,String)"

      • toExternalForm

        protected java.lang.String toExternalForm​(java.net.URL url)
        Overrides:
        toExternalForm in class java.net.URLStreamHandler

      • invoke

        public java.lang.Object invoke​(java.lang.Object obj,
                               java.lang.reflect.Method method,
                               java.lang.Object[] params)
                        throws java.lang.Throwable
        Specified by:
        invoke in interface java.lang.reflect.InvocationHandler
        Throws:
        java.lang.Throwable