Class JarUrlConnection

java.lang.Object

java.net.URLConnection

java.net.JarURLConnection

org.codehaus.classworlds.uberjar.protocol.jar.JarUrlConnection

public class JarUrlConnection
extends JarURLConnection

URLConnection capable of handling multiply-nested jars.

Version:

$Id: JarUrlConnection.java 78 2004-07-01 13:59:13Z jvanzyl $

Author:

bob mcwhirter

Field Summary

Fields

Modifier and Type	Field	Description
private URL	baseResource	Base resource.
private InputStream	in	Terminal input-stream.
private String[]	segments	Additional nested segments.

Fields inherited from class java.net.JarURLConnection

jarFileURLConnection

Fields inherited from class java.net.URLConnection

allowUserInteraction, connected, doInput, doOutput, ifModifiedSince, url, useCaches

Constructor Summary

Constructors

Constructor	Description
JarUrlConnection(URL url)	Construct.

Method Summary

Modifier and Type	Method	Description
void	connect()
protected URL	getBaseResource()	Retrieve the base resource URL.
InputStream	getInputStream()
JarFile	getJarFile()
protected InputStream	getSegmentInputStream(InputStream baseIn, String segment)	Retrieve the InputStream for the nesting segment relative to a base InputStream.
protected String[]	getSegments()	Retrieve the nesting path segments.
protected static URL	normaliseURL(URL url)
protected void	setupBaseResourceInputStream()	Setup the InputStream purely from the base resource.
protected void	setupPathedInputStream()	Setup the InputStream for URL with nested segments.

Methods inherited from class java.net.JarURLConnection

getAttributes, getCertificates, getEntryName, getJarEntry, getJarFileURL, getMainAttributes, getManifest

Methods inherited from class java.net.URLConnection

addRequestProperty, getAllowUserInteraction, getConnectTimeout, getContent, getContent, getContentEncoding, getContentLength, getContentLengthLong, getContentType, getDate, getDefaultAllowUserInteraction, getDefaultRequestProperty, getDefaultUseCaches, getDefaultUseCaches, getDoInput, getDoOutput, getExpiration, getFileNameMap, getHeaderField, getHeaderField, getHeaderFieldDate, getHeaderFieldInt, getHeaderFieldKey, getHeaderFieldLong, getHeaderFields, getIfModifiedSince, getLastModified, getOutputStream, getPermission, getReadTimeout, getRequestProperties, getRequestProperty, getURL, getUseCaches, guessContentTypeFromName, guessContentTypeFromStream, setAllowUserInteraction, setConnectTimeout, setContentHandlerFactory, setDefaultAllowUserInteraction, setDefaultRequestProperty, setDefaultUseCaches, setDefaultUseCaches, setDoInput, setDoOutput, setFileNameMap, setIfModifiedSince, setReadTimeout, setRequestProperty, setUseCaches, toString

Methods inherited from class java.lang.Object

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

Field Details

baseResource

private URL baseResource

Base resource.

segments

private String[] segments

Additional nested segments.

in

private InputStream in

Terminal input-stream.

Constructor Details

JarUrlConnection

JarUrlConnection(URL url)
          throws IOException

Construct.

Parameters:

url - Target URL of the connections.

Throws:

IOException - If an error occurs while attempting to initialize the connection.

Method Details

normaliseURL

protected static URL normaliseURL(URL url)
                           throws MalformedURLException

Throws:

MalformedURLException

getSegments

protected String[] getSegments()

Retrieve the nesting path segments.

Returns:

The segments.

getBaseResource

protected URL getBaseResource()

Retrieve the base resource URL.

Returns:

The base resource url.

connect

public void connect()
             throws IOException

Specified by:

connect in class URLConnection

Throws:

IOException

See Also:

• URLConnection

setupBaseResourceInputStream

protected void setupBaseResourceInputStream()
                                     throws IOException

Setup the InputStream purely from the base resource.

Throws:

IOException - If an I/O error occurs.

setupPathedInputStream

protected void setupPathedInputStream()
                               throws IOException

Setup the InputStream for URL with nested segments.

Throws:

IOException - If an I/O error occurs.

getSegmentInputStream

protected InputStream getSegmentInputStream(InputStream baseIn,
 String segment)
                                     throws IOException

Retrieve the InputStream for the nesting segment relative to a base InputStream.

Parameters:

baseIn - The base input-stream.

segment - The nesting segment path.

Returns:

The input-stream to the segment.

Throws:

IOException - If an I/O error occurs.

getInputStream

public InputStream getInputStream()
                           throws IOException

Overrides:

getInputStream in class URLConnection

Throws:

IOException

See Also:

• URLConnection

getJarFile

public JarFile getJarFile()
                   throws IOException

Specified by:

getJarFile in class JarURLConnection

Returns:

JarFile

Throws:

IOException

See Also:

• JarURLConnection.getJarFile()