com.springsource.util.io
Class JarTransformingURLConnection

java.lang.Object
  java.net.URLConnection
      com.springsource.util.io.JarTransformingURLConnection

public final class JarTransformingURLConnection
extends java.net.URLConnection

Implementation of URLConnection that transforms JAR files as they are read.

A URL is used to source the real connection for the JAR data, and a JarTransformer is used to customize the exact transformations being performed.

See Also:

JarTransformer

Field Summary

private boolean	ensureManifestIsPresent
private JarTransformer	transformer

Fields inherited from class java.net.URLConnection

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

Constructor Summary

JarTransformingURLConnection(java.net.URL url, JarTransformer transformer)
Creates a new JarTransformingURLConnection that will provide content from the JAR identified by url transformed by transformer.

JarTransformingURLConnection(java.net.URL url, JarTransformer transformer, boolean ensureManifestIsPresent)
Creates a new JarTransformingURLConnection that will provide content from the JAR identified by url transformed by transformer and that will optionally ensure that a manifest is provided, creating one if necessary.

Method Summary

void	connect()
java.io.InputStream	getInputStream()

Methods inherited from class java.net.URLConnection

addRequestProperty, getAllowUserInteraction, getConnectTimeout, getContent, getContent, getContentEncoding, getContentLength, getContentType, getDate, getDefaultAllowUserInteraction, getDefaultRequestProperty, getDefaultUseCaches, getDoInput, getDoOutput, getExpiration, getFileNameMap, getHeaderField, getHeaderField, getHeaderFieldDate, getHeaderFieldInt, getHeaderFieldKey, getHeaderFields, getIfModifiedSince, getLastModified, getOutputStream, getPermission, getReadTimeout, getRequestProperties, getRequestProperty, getURL, getUseCaches, guessContentTypeFromName, guessContentTypeFromStream, setAllowUserInteraction, setConnectTimeout, setContentHandlerFactory, setDefaultAllowUserInteraction, setDefaultRequestProperty, 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 Detail

transformer

private final JarTransformer transformer

ensureManifestIsPresent

private final boolean ensureManifestIsPresent

Constructor Detail

JarTransformingURLConnection

public JarTransformingURLConnection(java.net.URL url,
                                    JarTransformer transformer)

Creates a new JarTransformingURLConnection that will provide content from the JAR identified by url transformed by transformer.

Parameters:

url - the URL of the JAR file.

transformer - the JarTransformer to apply as content is being read.

JarTransformingURLConnection

public JarTransformingURLConnection(java.net.URL url,
                                    JarTransformer transformer,
                                    boolean ensureManifestIsPresent)

Creates a new JarTransformingURLConnection that will provide content from the JAR identified by url transformed by transformer and that will optionally ensure that a manifest is provided, creating one if necessary.

Parameters:

url - the URL of the JAR file.

transformer - the JarTransformer to apply as content is being read.

ensureManifestIsPresent - true if the presence of a MANIFEST.MF should be ensured.

Method Detail

getInputStream

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

Overrides:

getInputStream in class java.net.URLConnection

Throws:

java.io.IOException

connect

public void connect()
             throws java.io.IOException

Specified by:

connect in class java.net.URLConnection

Throws:

java.io.IOException