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-rw-r--r--java/src/ServiceLoader.java242
1 files changed, 0 insertions, 242 deletions
diff --git a/java/src/ServiceLoader.java b/java/src/ServiceLoader.java
deleted file mode 100644
index c9b201c72a8..00000000000
--- a/java/src/ServiceLoader.java
+++ /dev/null
@@ -1,242 +0,0 @@
-/*************************************************
- *
- * = PACKAGE
- * JACE.ServiceConfigurator
- *
- * = FILENAME
- * ServiceLoader.java
- *
- * Implementation of a ClassLoader
- *
- *@author Prashant Jain, Everett Anderson
- *
- *************************************************/
-package JACE.ServiceConfigurator;
-
-import java.io.*;
-import java.util.*;
-import java.net.*;
-import java.lang.*;
-import JACE.OS.*;
-import JACE.Misc.*;
-
-public class ServiceLoader extends ClassLoader
-{
- /**
- * Constructor
- */
- public ServiceLoader ()
- {
- super ();
- this.getClassPath ();
- }
-
- /**
- * Searches the class path for a given file
- *
- *@param filename File name to look for
- *@return Returns the absolute path to the file
- * (useful for package name)
- */
- public String findFileInClasspath (String filename)
- {
- // Checks for the given name across the classpath
- StringTokenizer tokens = new StringTokenizer (this.classPath_,
- this.pathSeparator_);
-
- while (tokens.hasMoreTokens())
- {
- String fn = tokens.nextToken() + this.fileSeparator_ + filename;
-
- File f = new File (fn);
-
- if (f.exists() && f.isFile() && f.canRead())
- return new String(f.getAbsolutePath());
- }
-
- return null;
- }
-
- /**
- * Load a class from across the network
- */
- public Class loadClass (URL url, boolean resolve) throws ClassNotFoundException
- {
- Class newClass = null;
- // Try to load it the class by reading in the bytes.
- // Note that we are not catching ClassNotFoundException here
- // since our caller will catch it.
- try
- {
- URLConnection urlConnection = url.openConnection ();
-
- // Get the input stream associated with the URL connection and
- // pipe it to a newly created DataInputStream
- DataInputStream i = new DataInputStream (urlConnection.getInputStream ());
-
- // Allocate a buffer big enough to hold the contents of the
- // data we are about to read
- byte [] buf = new byte [urlConnection.getContentLength ()];
-
- // Now read all the data into the buffer
- i.readFully (buf);
-
- newClass = defineClass (buf, 0, buf.length);
- // ACE.DEBUG ("Loaded class: "+ name);
-
- // Check if we need to load other classes referred to by this class.
- if (resolve)
- resolveClass (newClass);
- }
- catch (IOException e)
- {
- throw new ClassNotFoundException (e.toString ());
- }
- return newClass;
- }
-
-
- /**
- * Load a class file:
- *
- * @param fn A file name WITHOUT the .class extension
- * @param resolve Standard resolve flag -- user should set to true
- *
- * @return A Class file capable of creating quasi-useful instances
- * of the loaded class. They can't exist in the normal
- * Java space, though, so it's impossible to cast them
- * to something useful. Use a wrapper and reflection
- * as in ServiceRecords.
- */
- public Class loadClass (String fn, boolean resolve) throws ClassNotFoundException
- {
- Class newClass;
-
- // Load built-in java classes with the system loader
- if (fn.startsWith("java")) {
- newClass = findSystemClass(fn);
- if (newClass == null)
- throw (new ClassNotFoundException());
- else
- return newClass;
- }
-
- // If given a dot separated qualified name, put it in OS path format.
- // This assumes the file separator is one char
- String str = new String(fn);
- if (str.indexOf('.') >= 0)
- str = str.replace('.', this.fileSeparator_.charAt(0));
- str = str + ".class";
-
- // Search the class path for the given file name
- String fullname = this.findFileInClasspath(str);
- if (fullname == null) {
-
- // If we can't find the class file, see if the
- // system can
- if ((newClass = findSystemClass(fn)) != null) {
- return newClass;
- } else
- throw (new ClassNotFoundException());
- }
-
- try
- {
- // Try to load it the class by reading in the bytes.
- // Note that we are not catching ClassNotFoundException here
- // since our caller will catch it.
- try
- {
- byte[] buf = bytesForClass (fullname);
-
- // ***** Note *****
- // This looks inside the class file and digs up the true
- // fully qualified class name. You need this to
- // load the class!
- String className = ClassReader.getClassName(fullname);
-
- if (className != null) {
- ACE.DEBUG("Defining class with name: " + className);
- newClass = defineClass (className, buf, 0, buf.length);
- } else {
- // Try it anyway
- newClass = defineClass (null, buf, 0, buf.length);
-
- ACE.ERROR("Unknown class name");
- }
-
- // Check if we need to load other classes referred to by this class.
- if (resolve)
- resolveClass (newClass);
-
- } catch (ClassNotFoundException e) {
-
- ACE.DEBUG ("Using default loader for class: " + fn);
-
- if ((newClass = findSystemClass (fn)) != null)
- return newClass;
- else
- throw (e); // Rethrow the exception
- }
- }
- catch (IOException e)
- {
- throw new ClassNotFoundException (e.toString ());
- }
-
- return newClass;
- }
-
- /**
- * Get system properties for later use
- */
- private void getClassPath ()
- {
- // Cache system properties that are needed when trying to find a
- // class file
- this.classPath_ = System.getProperty ("java.class.path", ".");
- this.pathSeparator_ = System.getProperty ("path.separator", ":");
- this.fileSeparator_ = System.getProperty ("file.separator", "/");
- }
-
- /**
- * Read file into a byte array
- */
- private byte[] bytesForClass (String name) throws IOException, ClassNotFoundException
- {
- // Set up the stream
- FileInputStream in = new FileInputStream (name);
-
- // Get byte count
- int length = in.available ();
-
- if (length == 0)
- throw new ClassNotFoundException (name);
-
- // Create an array of bytes to read the file in
- byte[] buf = new byte[length];
-
- // Read the file
- in.read (buf);
-
- // Return byte array
- return buf;
- }
-
- private String classPath_;
- // Class path that is loaded at construction
-
- private String pathSeparator_;
- // Platform-dependent path separator (e.g., : or ;)
-
- private String fileSeparator_;
- // Platform-dependent file separator (e.g., / or \)
-
- private String context_ = null;
-}
-
-
-
-
-
-
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