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Connection.java (getJarFile): download and cache remote jar files.

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* gnu/gcj/protocol/jar/Connection.java (getJarFile): download and
	cache remote jar files.
	* gnu/gcj/runtime/VMClassLoader.java: Don't construct jar URL, only
	add File.separator to URL when it is a directory.
	* java/lang/ClassLoader.java: Add Classpath javadoc.
	(parent): final.
	(getParent): Add (disabled) security check.
	(findLibrary): New default method.
	* java/net/JarURLConnection.java (getManifest): Implement.
	(getInputStream): Only create InputStream when entry exists.
	(getHeaders): Only use jarFileURLConnection or JarEntry to set length
	when they exist.
	* java/net/URLClassLoader.java: New/Rewritten version from Classpath.

From-SVN: r59949
This commit is contained in:
Mark Wielaard
2002-12-09 00:04:00 +00:00
committed by Mark Wielaard
parent 24632117ce
commit e825ca7ff5
6 changed files with 1099 additions and 365 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
libjava/gnu/gcj/protocol/jar/Connection.java
View File

@@ -1,4 +1,4 @@
/* Copyright (C) 1999 Free Software Foundation
/* Copyright (C) 1999, 2002 Free Software Foundation
This file is part of libgcj.
@@ -9,19 +9,21 @@ details. */
package gnu.gcj.protocol.jar;
import java.net.URL;
import java.net.URLConnection;
import java.net.JarURLConnection;
import java.net.URLStreamHandler;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.io.IOException;
import java.io.InputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.util.jar.JarFile;
import java.util.zip.ZipFile;
import java.util.Hashtable;
/**
* Written using on-line Java Platform 1.2 API Specification.
* Status: Needs a way to download jar files and store them in the local file
* system. I don't know how to do that in a portable way. For now, it can only handle
* connections to a jar:file: url's.
*
* @author Kresten Krab Thorup <krab@gnu.org>
* @date Aug 10, 1999.
@@ -70,14 +72,19 @@ public class Connection extends JarURLConnection
}
else
{
/*
FIXME: Here we need to download and cache the jar
file in the local file system! Stupid design. Why
can't we just create a JarFile from a bag of bytes?
*/
throw new java.io.IOException("cannot create jar file from " +
jarFileURL);
URLConnection urlconn = jarFileURL.openConnection();
InputStream is = urlconn.getInputStream();
byte[] buf = new byte[4*1024];
File f = File.createTempFile("cache", "jar");
FileOutputStream fos = new FileOutputStream(f);
int len = 0;
while((len = is.read(buf)) != -1)
fos.write(buf, 0, len);
fos.close();
// Always verify the Manifest, open read only and delete when done.
// XXX ZipFile.OPEN_DELETE not yet implemented.
// jf = new JarFile(f, true, ZipFile.OPEN_READ | ZipFile.OPEN_DELETE);
jarfile = new JarFile(f, true, ZipFile.OPEN_READ);
}
return jarfile;

21
libjava/gnu/gcj/runtime/VMClassLoader.java
View File

@@ -1,4 +1,4 @@
/* Copyright (C) 1999, 2001 Free Software Foundation
/* Copyright (C) 1999, 2001, 2002 Free Software Foundation
This file is part of libgcj.
@@ -33,23 +33,10 @@ public final class VMClassLoader extends java.net.URLClassLoader
String e = st.nextToken ();
try
{
if (e.endsWith(".jar") || e.endsWith (".zip"))
{
File archive = new File (e);
try {
p.addElement(new URL("jar", "", -1, "file://"
+ archive.getCanonicalPath ()
+ "!/"));
} catch (IOException ex) {
// empty
}
}
else if (e.endsWith ("/"))
p.addElement (new URL("file", "", -1, e));
else if (new File (e).isDirectory ())
p.addElement (new URL("file", "", -1, e + "/"));
if (!e.endsWith (File.separator) && new File (e).isDirectory ())
p.addElement (new URL("file", "", -1, e + File.separator));
else
/* Ignore path element. */;
p.addElement (new URL("file", "", -1, e));
}
catch (java.net.MalformedURLException x)
{