Package javassist
Class URLClassPath
- java.lang.Object
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- javassist.URLClassPath
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Constructor Summary
Constructors Constructor Description URLClassPath(java.lang.String host, int port, java.lang.String directory, java.lang.String packageName)
Creates a search path specified with URL (http).
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static byte[]
fetchClass(java.lang.String host, int port, java.lang.String directory, java.lang.String classname)
Reads a class file on an http server.java.net.URL
find(java.lang.String classname)
Returns the URL.java.io.InputStream
openClassfile(java.lang.String classname)
Opens a class file with http.java.lang.String
toString()
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Constructor Detail
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URLClassPath
public URLClassPath(java.lang.String host, int port, java.lang.String directory, java.lang.String packageName)
Creates a search path specified with URL (http).This search path is used only if a requested class name starts with the name specified by
packageName
. IfpackageName
is "org.javassist." and a requested class is "org.javassist.test.Main", then the given URL is used for loading that class. TheURLClassPath
obtains a class file from:http://www.javassist.org:80/java/classes/org/javassist/test/Main.class
Here, we assume that
host
is "www.javassist.org",port
is 80, anddirectory
is "/java/classes/".If
packageName
isnull
, the URL is used for loading any class.- Parameters:
host
- host nameport
- port numberdirectory
- directory name ending with "/". It can be "/" (root directory). It must start with "/".packageName
- package name. It must end with "." (dot).
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Method Detail
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toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
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openClassfile
public java.io.InputStream openClassfile(java.lang.String classname)
Opens a class file with http.- Specified by:
openClassfile
in interfaceClassPath
- Parameters:
classname
- a fully-qualified class name- Returns:
- null if the class file could not be found.
- See Also:
Translator
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find
public java.net.URL find(java.lang.String classname)
Returns the URL.
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fetchClass
public static byte[] fetchClass(java.lang.String host, int port, java.lang.String directory, java.lang.String classname) throws java.io.IOException
Reads a class file on an http server.- Parameters:
host
- host nameport
- port numberdirectory
- directory name ending with "/". It can be "/" (root directory). It must start with "/".classname
- fully-qualified class name- Throws:
java.io.IOException
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