Package org.codehaus.classworlds.uberjar.protocol.jar

Class JarUrlConnection

java.lang.Object

java.net.URLConnection

java.net.JarURLConnection

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

public class JarUrlConnection
extends java.net.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 java.net.URL	baseResource	Base resource.
private java.io.InputStream	in	Terminal input-stream.
private java.lang.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(java.net.URL url)	Construct.

Method Summary

Modifier and Type	Method	Description
void	connect()
protected java.net.URL	getBaseResource()	Retrieve the base resource URL.
java.io.InputStream	getInputStream()
java.util.jar.JarFile	getJarFile()
protected java.io.InputStream	getSegmentInputStream(java.io.InputStream baseIn, java.lang.String segment)	Retrieve the InputStream for the nesting segment relative to a base InputStream.
protected java.lang.String[]	getSegments()	Retrieve the nesting path segments.
protected static java.net.URL	normaliseURL(java.net.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.lang.Object

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

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

Field Detail

baseResource

private java.net.URL baseResource

Base resource.

segments

private java.lang.String[] segments

Additional nested segments.

in

private java.io.InputStream in

Terminal input-stream.

Constructor Detail

JarUrlConnection

JarUrlConnection(java.net.URL url)
          throws java.io.IOException

Construct.

Parameters:

url - Target URL of the connections.

Throws:

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

Method Detail

normaliseURL

protected static java.net.URL normaliseURL(java.net.URL url)
                                    throws java.net.MalformedURLException

Throws:

java.net.MalformedURLException

getSegments

protected java.lang.String[] getSegments()

Retrieve the nesting path segments.

Returns:

The segments.

getBaseResource

protected java.net.URL getBaseResource()

Retrieve the base resource URL.

Returns:

The base resource url.

connect

public void connect()
             throws java.io.IOException

Specified by:

connect in class java.net.URLConnection

Throws:

java.io.IOException

See Also:

URLConnection

setupBaseResourceInputStream

protected void setupBaseResourceInputStream()
                                     throws java.io.IOException

Setup the InputStream purely from the base resource.

Throws:

java.io.IOException - If an I/O error occurs.

setupPathedInputStream

protected void setupPathedInputStream()
                               throws java.io.IOException

Setup the InputStream for URL with nested segments.

Throws:

java.io.IOException - If an I/O error occurs.

getSegmentInputStream

protected java.io.InputStream getSegmentInputStream(java.io.InputStream baseIn,
                                                    java.lang.String segment)
                                             throws java.io.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:

java.io.IOException - If an I/O error occurs.

getInputStream

public java.io.InputStream getInputStream()
                                   throws java.io.IOException

Overrides:

getInputStream in class java.net.URLConnection

Throws:

java.io.IOException

See Also:

URLConnection

getJarFile

public java.util.jar.JarFile getJarFile()
                                 throws java.io.IOException

Specified by:

getJarFile in class java.net.JarURLConnection

Returns:

JarFile

Throws:

java.io.IOException

See Also:

JarURLConnection.getJarFile()