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author | nobody <nobody@ae88bc3d-4319-0410-8dbf-d08b4c9d3795> | 1997-01-01 08:00:34 +0000 |
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committer | nobody <nobody@ae88bc3d-4319-0410-8dbf-d08b4c9d3795> | 1997-01-01 08:00:34 +0000 |
commit | 437eea6fa08e931864f89be91d14a816f69075c7 (patch) | |
tree | b8c1fd723fdcd61c3855d3a3a21a9cd45a268219 /java/src/ServiceRepository.java | |
parent | ea0d28240863caf437a18071bfd03e7b146c5ade (diff) | |
download | ATCD-unlabeled-4.2.2.tar.gz |
This commit was manufactured by cvs2svn to create branchunlabeled-4.2.2
'unlabeled-4.2.2'.
Diffstat (limited to 'java/src/ServiceRepository.java')
-rw-r--r-- | java/src/ServiceRepository.java | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/java/src/ServiceRepository.java b/java/src/ServiceRepository.java deleted file mode 100644 index 9ae7ed12668..00000000000 --- a/java/src/ServiceRepository.java +++ /dev/null @@ -1,151 +0,0 @@ -/************************************************* - * - * = PACKAGE - * ACE.ServiceConfigurator - * - * = FILENAME - * ServiceRepository.java - * - *@author Prashant Jain - * - *************************************************/ -package ACE.ServiceConfigurator; - -import java.io.*; -import java.util.*; -import ACE.OS.*; - -public class ServiceRepository -{ - /** - * Create a Service Repository. - */ - public ServiceRepository () - { - this.loader_ = new ServiceLoader (); - } - - /** - * Load a Java Class. This method first checks if the class is - * already in the repository. If it is not, it checks if the class - * is a system class and can be found on the local system. If both - * these fail, the method tries to load the bytes for the class and - * then create the Class from these bytes. - *@param name name of the class to find in the repository - *@return Class corresponding to name - */ - public Class load (String name) throws ClassNotFoundException - { - return this.loader_.loadClass (name, true); - } - - private ServiceLoader loader_; -} - -class ServiceLoader extends ClassLoader -{ - public ServiceLoader () - { - super (); - this.getClassPath (); - } - - // Load a compiled class file into runtime - public Class loadClass (String name, boolean resolve) throws ClassNotFoundException - { - Class newClass; - 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 (name); - 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 (ClassNotFoundException e) - { - // ACE.DEBUG ("Using default loader for class: "+ name); - // Try default system loader - if ((newClass = findSystemClass (name)) != null) - return newClass; - else - throw (e); // Rethrow the exception - } - } - catch (IOException e) - { - throw new ClassNotFoundException (e.toString ()); - } - return newClass; - } - - 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 a file into a byte array - private byte[] bytesForClass (String name) throws IOException, ClassNotFoundException - { - // Break up the CLASSPATH to check for existence of file in each - // sub-path. Note that we use the path_separator to extract every - // sub-path and use that to check if the class file exists. - StringTokenizer tokens = new StringTokenizer (this.classPath_, - this.pathSeparator_); - while (tokens.hasMoreTokens ()) - { - // Create a File object which can then be used to see if the - // class file actually exists - File classFile = new File (tokens.nextToken () + - this.fileSeparator_ + - name + - ".class"); - - // Check if file exists, is a normal file and is readable - if (classFile.exists () && - classFile.isFile () && - classFile.canRead ()) - { - // Set up the stream - FileInputStream in = new FileInputStream (classFile); - - // 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; - } - } - // File was not found so throw an exception. - throw new ClassNotFoundException ("Class file " + name + " not found"); - } - - 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 \) -} |