Examples of java.net.Authenticator

java.net.Authenticator
The class Authenticator represents an object that knows how to obtain authentication for a network connection. Usually, it will do this by prompting the user for information.
Applications use this class by overriding {@link #getPasswordAuthentication()} in a sub-class. This method willtypically use the various getXXX() accessor methods to get information about the entity requesting authentication. It must then acquire a username and password either by interacting with the user or through some other non-interactive means. The credentials are then returned as a {@link PasswordAuthentication} return value.
An instance of this concrete sub-class is then registered with the system by calling {@link #setDefault(Authenticator)}. When authentication is required, the system will invoke one of the requestPasswordAuthentication() methods which in turn will call the getPasswordAuthentication() method of the registered object.
All methods that request authentication have a default implementation that fails. @see java.net.Authenticator#setDefault(java.net.Authenticator) @see java.net.Authenticator#getPasswordAuthentication() @author Bill Foote @version 1.33, 11/17/05 @since 1.2

            // create the HostnameVerifier to check that Hostname verification
            // is done
            TestHostnameVerifier hnv = new TestHostnameVerifier();
            HttpsURLConnection.setDefaultHostnameVerifier(hnv);


            Authenticator.setDefault(new Authenticator() {


                protected PasswordAuthentication getPasswordAuthentication() {
                    return new PasswordAuthentication("user", "password"
                            .toCharArray());
                }

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            // create the HostnameVerifier to check that Hostname verification
            // is done
            TestHostnameVerifier hnv = new TestHostnameVerifier();
            HttpsURLConnection.setDefaultHostnameVerifier(hnv);


            Authenticator.setDefault(new Authenticator() {


                protected PasswordAuthentication getPasswordAuthentication() {
                    return new PasswordAuthentication("user", "password"
                            .toCharArray());
                }

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            }
        };
    }


    public static Authenticator getAuthenticator() {
        return new Authenticator() {


            @Override
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(USERNAME, PASSWORD.toCharArray());
            }

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            System.getProperties().put( "proxyHost", proxyHost );
            System.getProperties().put( "proxyPort", proxyPort );


            if ( proxyUserName != null )
            {
                Authenticator.setDefault( new Authenticator()
                {
                    protected PasswordAuthentication getPasswordAuthentication()
                    {
                        return new PasswordAuthentication( proxyUserName, proxyPassword == null ? new char[0]
                                                                                               : proxyPassword

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    private void connect(Map<String, String> sessionParameters) {
        this.sessionParameters = sessionParameters;


        // set a new dummy authenticator
        // don't send previous credentials to another server
        Authenticator.setDefault(new Authenticator() {
        });


        if (Boolean.parseBoolean(sessionParameters.get(ACCEPT_SELF_SIGNED_CERTIFICATES))) {
            acceptSelfSignedCertificates();
        }

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                }
                if (!StringUtils.isEmpty(proxy.getUsername()) 
                    && !StringUtils.isEmpty(proxy.getPassword())) {
                    final String authUser = proxy.getUsername();
                    final String authPassword = proxy.getPassword();
                    Authenticator.setDefault(new Authenticator() {
                        public PasswordAuthentication getPasswordAuthentication() {
                            return new PasswordAuthentication(authUser, authPassword.toCharArray());
                        }
                    });

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    // -Dhttp.nonProxyHosts=*.domain.com|host.internal.net
    
    if (null != proxyUser && null != proxyPass) {
      LOG.info("Proxy authentication enabled");
      
      Authenticator.setDefault(new Authenticator() {
        @Override
        protected PasswordAuthentication getPasswordAuthentication() {
          return new PasswordAuthentication(proxyUser, proxyPass.toCharArray());
        }
      });

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         ArrayList<Proxy> result = new ArrayList<Proxy>();
         result.add(new Proxy(Type.HTTP, new InetSocketAddress(proxySettings.getProxyHost(),
                  proxySettings.getProxyPort())));
         if (proxySettings.isAuthenticationSupported())
         {
            Authenticator.setDefault(new Authenticator()
            {
               protected PasswordAuthentication getPasswordAuthentication()
               {
                  return new PasswordAuthentication(proxySettings.getProxyUserName(),
                           proxySettings.getProxyPassword().toCharArray());

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  }


  @Override
  public void open() throws IOException {
    // set username and pw used for fetching the url.
    Authenticator.setDefault(new Authenticator() {
      public PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication(username, password.toCharArray());
      }
    });
    URL u = new URL(url);

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                    }
                }
            }


            try {
                Authenticator.setDefault(new Authenticator() {
                    public PasswordAuthentication getPasswordAuthentication() {
                        return new PasswordAuthentication("test", "password"
                                .toCharArray());
                    }
                });

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