Examples of java.net.URL

java.net.URL
ocs.uts.edu.au/MosaicDocs-old/url-primer.html"> http://www.socs.uts.edu.au/MosaicDocs-old/url-primer.html
In general, a URL can be broken into several parts. The previous example of a URL indicates that the protocol to use is http (HyperText Transfer Protocol) and that the information resides on a host machine named www.socs.uts.edu.au. The information on that host machine is named /MosaicDocs-old/url-primer.html. The exact meaning of this name on the host machine is both protocol dependent and host dependent. The information normally resides in a file, but it could be generated on the fly. This component of the URL is called the path component.
A URL can optionally specify a "port", which is the port number to which the TCP connection is made on the remote host machine. If the port is not specified, the default port for the protocol is used instead. For example, the default port for http is 80. An alternative port could be specified as:
```
 http://www.socs.uts.edu.au:80/MosaicDocs-old/url-primer.html 
```
The syntax of URL is defined by RFC 2396: Uniform Resource Identifiers (URI): Generic Syntax, amended by RFC 2732: Format for Literal IPv6 Addresses in URLs. The Literal IPv6 address format also supports scope_ids. The syntax and usage of scope_ids is described here.
A URL may have appended to it a "fragment", also known as a "ref" or a "reference". The fragment is indicated by the sharp sign character "#" followed by more characters. For example,
```
 http://java.sun.com/index.html#chapter1 
```
This fragment is not technically part of the URL. Rather, it indicates that after the specified resource is retrieved, the application is specifically interested in that part of the document that has the tag chapter1 attached to it. The meaning of a tag is resource specific.
An application can also specify a "relative URL", which contains only enough information to reach the resource relative to another URL. Relative URLs are frequently used within HTML pages. For example, if the contents of the URL:
```
 http://java.sun.com/index.html 
```
contained within it the relative URL:
```
 FAQ.html 
```
it would be a shorthand for:
```
 http://java.sun.com/FAQ.html 
```
The relative URL need not specify all the components of a URL. If the protocol, host name, or port number is missing, the value is inherited from the fully specified URL. The file component must be specified. The optional fragment is not inherited.
The URL class does not itself encode or decode any URL components according to the escaping mechanism defined in RFC2396. It is the responsibility of the caller to encode any fields, which need to be escaped prior to calling URL, and also to decode any escaped fields, that are returned from URL. Furthermore, because URL has no knowledge of URL escaping, it does not recognise equivalence between the encoded or decoded form of the same URL. For example, the two URLs:
```
    http://foo.com/hello world/ and http://foo.com/hello%20world
```
would be considered not equal to each other.
Note, the {@link java.net.URI} class does perform escaping of itscomponent fields in certain circumstances. The recommended way to manage the encoding and decoding of URLs is to use {@link java.net.URI}, and to convert between these two classes using {@link #toURI()} and{@link URI#toURL()}.
The {@link URLEncoder} and {@link URLDecoder} classes can also beused, but only for HTML form encoding, which is not the same as the encoding scheme defined in RFC2396. @author James Gosling @version 1.136, 04/30/09 @since JDK1.0

   private static String testArchiveDir;


   /** Deploy the given archive
    */
   public void deploy(String testName, String archive) throws Exception {
     URL archiveURL = getTestFile(testName, archive).toURL();
     getDeployer().deploy(archiveURL);
   }

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   }


   /** Undeploy the given archive
    */
   public void undeploy(String testName, String archive) throws Exception {
       URL archiveURL = getTestFile(testName, archive).toURL();
       getDeployer().undeploy(archiveURL);
   }

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   * Is it allowed to process this document ?
   * @param document
   * @return true if processing of this URL is allowed
   */
  protected boolean isProcessingAllowed(HttpDoc doc) {
    URL u = doc.getURL();
    if ((urlCheck != null) && (!urlCheck.checkURLForProcessing(u))) {
      log.debug("processing not allowed by URLCheck:" + u);
      return false;
    }

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   * sets the start URL 
   * @param the startURL as String
   */
  public void setStart(String startURL) {
    try {
      setStartURL(new URL(startURL));
    } catch (MalformedURLException e) {
      e.printStackTrace();
    }
  }

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   * Method getStart.
   * gets the start url as string
   * @return String
   */
  public String getStart() {
    URL url = getStartURL();
    if (url != null) {
      return url.toExternalForm();
    } else {
      return null;
    }
  }

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  public URL removeWasteParameters(URL url) {
    String urlString = url.toExternalForm();
    String newUrlString = removeParametersFromString(urlString, wasteParameters);
    if (urlString != newUrlString) {
      try {
        url = new URL(newUrlString);
      } catch (MalformedURLException ex) {
        ex.printStackTrace();
      }
    };
    return url;

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            delegate.undeploy(m_testName, archive);
         }


         if (archive.endsWith("-client.jar"))
         {
            URL archiveURL = getArchiveURL(archive);
            clientJars.add(archiveURL);
         }
      }


      ClassLoader parent = Thread.currentThread().getContextClassLoader();

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         {
            String archive = archives[archives.length - i - 1];


            java.io.File file=delegate.getTestFile(m_testName, archive);
            
            URL archiveURL = file.toURL();
            
           java.io.File newfile=new java.io.File(file.getParentFile(), "_"+file.getName());
           file.renameTo(newfile);
           
           mapping.put(newfile, file);

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        repURL = "http://weka.sourceforge.net/packageMetaData";
      } else {
        System.err.println("weka.core.WekaPackageRepositoryURL = " + repURL);
      }
      
      REP_URL = new URL(repURL);
      PACKAGE_MANAGER.setPackageRepositoryURL(REP_URL);
    } catch (MalformedURLException ex) {
      ex.printStackTrace();
    } catch (IOException ex) {
      ex.printStackTrace();

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    try {
      PACKAGE_MANAGER.setPackageRepositoryURL(REP_URL);
      String numPackagesS = PACKAGE_MANAGER.getPackageRepositoryURL().toString()
      + "/numPackages.txt";
      URLConnection conn = null;
      URL connURL = new URL(numPackagesS);


      if (PACKAGE_MANAGER.setProxyAuthentication()) {
        conn = connURL.openConnection(PACKAGE_MANAGER.getProxy());
      } else {
        conn = connURL.openConnection();
      }
      
      conn.setConnectTimeout(30000); // timeout after 30 seconds
      
      BufferedReader bi =

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