cytoscape.util
Class URLUtil

java.lang.Object
  cytoscape.util.URLUtil

public class URLUtil
extends Object

Constructor Summary

URLUtil()

Method Summary

static void	download(String urlString, File downloadFile, TaskMonitor taskMonitor) Download the file specified by the url string to the given File object
static String	download(URL source) Get the the contents of the given URL as a string.
static InputStream	getBasicInputStream(URL source) Obtain an InputStream for a given URL.
static InputStream	getInputStream(URL source) Gets the an input stream given a URL.
static URLConnection	getURLConnection(URL source) Obtain a URLConnection for a given URL.
static boolean	isValid(String urlCandidate)

Methods inherited from class java.lang.Object

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

Constructor Detail

URLUtil

public URLUtil()

Method Detail

getInputStream

public static InputStream getInputStream(URL source)
                                  throws IOException

Gets the an input stream given a URL.

Parameters:

source - URL source for a zip or jar file.

Returns:

InputStream for given URL

Throws:

IOException

getBasicInputStream

public static InputStream getBasicInputStream(URL source)
                                       throws IOException

Obtain an InputStream for a given URL. Ensure proxy servers and an input stream to the real URL source is created--not a locally cached and out of date source. Proxy servers and other characteristics can cause pages to be cached.

Parameters:

source - the non-null URL from which to obtain an InputStream.

Returns:

InputStream from the source URL.

Throws:

IllegalStateException - if source is null.

IOException - if a connection to the URL can't be opened or a problem occurs with the InputStream.

getURLConnection

public static URLConnection getURLConnection(URL source)
                                      throws IOException

Obtain a URLConnection for a given URL. Ensure proxy servers are considered and page caching is ignored.

Parameters:

source - the non-null URL from which to obtain a URLConnection.

Returns:

URLConnection to the source URL.

Throws:

IllegalStateException - if source is null.

IOException - if a connection to the URL can't be opened.

download

public static void download(String urlString,
                            File downloadFile,
                            TaskMonitor taskMonitor)
                     throws IOException

Download the file specified by the url string to the given File object

Parameters:

urlString -

downloadFile -

taskMonitor -

Throws:

IOException

download

public static String download(URL source)
                       throws IOException

Get the the contents of the given URL as a string.

Parameters:

source -

Returns:

String

Throws:

IOException

isValid

public static boolean isValid(String urlCandidate)