Java Doc for PathResolver.java in  » Code-Analyzer » GenJar » org » apache » tools » ant » taskdefs » optional » genjar » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Code Analyzer » GenJar » org.apache.tools.ant.taskdefs.optional.genjar 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.tools.ant.taskdefs.optional.genjar.PathResolver

All known Subclasses:   org.apache.tools.ant.taskdefs.optional.genjar.FileResolver,  org.apache.tools.ant.taskdefs.optional.genjar.JarResolver,  org.apache.tools.ant.taskdefs.optional.genjar.ZipResolver,
PathResolver
abstract class PathResolver (Code)

A PathResolver is used for each component of the classpath.

Each type of component is a specialization of this base class. For example, a jar file encountered in the classpath causes a JarResolver to be instantiated. A JarResolver knows how to search within jar files for specific files.

This approach is taken for two reasons:

  1. To encapsulate the specifics of fetching streams and what attributes are set on a jar entry's manifest entry.
  2. To provide an association between the source of a class (or resource) and the repository from which it came. This info is priceless when trying to figure out why the wrong classes are being included in your jar.


author:
   Original Code: John W. Kohler
author:
   Jesse Stockall
version:
   $Revision: 1.2 $ $Date: 2003/02/23 10:06:10 $


Field Summary
final static  StringCONTENT_LOC
    
final static  StringLAST_MOD
    
final static  StringRFC1123
    
protected  Loggerlog
    

Constructor Summary
 PathResolver(Logger log)
    

Method Summary
abstract  voidclose()
     Closes any resources opened by the resolver.
protected  StringformatDate(Date d)
     Formats a date compatable with RFC1123.
protected  StringformatDate(long l)
    
abstract  InputStreamresolve(JarEntrySpec je)
     Given a JarEntrySpec, a path to the actual resource is generated and an input stream is returned on the path.
abstract  InputStreamresolve(String fname)
     Given a file name (possibly relative), an InputStream is opened on that file or an exception is thrown.

Field Detail
CONTENT_LOC
final static String CONTENT_LOC(Code)
name of attribute for content's original location (path)



LAST_MOD
final static String LAST_MOD(Code)
name of attribute for original content's modification time



RFC1123
final static String RFC1123(Code)
format string for RFC1123 date



log
protected Logger log(Code)
Description of the Field




Constructor Detail
PathResolver
PathResolver(Logger log)(Code)
Constructor for the PathResolver object
Parameters:
  log - Description of the Parameter




Method Detail
close
abstract void close() throws IOException(Code)
Closes any resources opened by the resolver.
throws:
  IOException - Oops!



formatDate
protected String formatDate(Date d)(Code)
Formats a date compatable with RFC1123. Well, close anyway. To be truly conformant the time zone would always be GMT. This formats the date in local time.
Parameters:
  d - Description of the Parameter String representation of the date



formatDate
protected String formatDate(long l)(Code)
Description of the Method
Parameters:
  l - Description of the Parameter Description of the Return Value



resolve
abstract InputStream resolve(JarEntrySpec je) throws IOException(Code)
Given a JarEntrySpec, a path to the actual resource is generated and an input stream is returned on the path.
Parameters:
  je - Description of the Parameter IOStream opened on the file referenced
exception:
  IOException - if any errors are encountered



resolve
abstract InputStream resolve(String fname) throws IOException(Code)
Given a file name (possibly relative), an InputStream is opened on that file or an exception is thrown.
Parameters:
  fname - Description of the Parameter IOStream opened on the named file
throws:
  IOException - Oops!



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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