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java.lang.Objectjava.lang.ClassLoader
java.security.SecureClassLoader
java.net.URLClassLoader
RJavaClassLoader
public class RJavaClassLoader
Class loader used internally by rJava The class manages the class paths and the native libraries (jri, ...)
| Field Summary | |
|---|---|
| static RJavaClassLoader | primaryLoadersingleton | 
|  boolean | useSystemShould the system class loader be used to resolve classes as well as this class loader | 
| static boolean | verbosePrint debug messages if is set to true | 
| Constructor Summary | |
|---|---|
| RJavaClassLoader(java.lang.String path,
                 java.lang.String libpath)Constructor. | |
| Method Summary | |
|---|---|
|  void | addClassPath(java.lang.String cp)adds an entry to the class path | 
|  void | addClassPath(java.lang.String[] cp)adds several entries to the class path | 
|  void | addRLibrary(java.lang.String name,
            java.lang.String path)add a library to path mapping for a native library | 
|  void | bootClass(java.lang.String cName,
          java.lang.String mName,
          java.lang.String[] args)Boots the specified method of the specified class | 
| protected  java.lang.Class | findClass(java.lang.String name) | 
| protected  java.lang.String | findLibrary(java.lang.String name) | 
|  java.net.URL | findResource(java.lang.String name) | 
|  java.lang.String[] | getClassPath() | 
| static RJavaClassLoader | getPrimaryLoader()Returns the singleton instance of RJavaClassLoader | 
| static void | main(java.lang.String[] args)main method This uses the system properties: rjava.path: path of the rJava packagerjava.lib: lib sub directory of the rJava packagemain.class: main class to "boot", assumes Main if not specifiedrjava.class.path: set of paths to populate the initiate the class path
 
 
 and boots the "main" method of the specifiedmain.class, 
 passing the args down to the booted class
 This makes sure R and rJava are known by the class loader | 
| static void | setDebug(int level)Set the debug level. | 
| static byte[] | toByte(java.lang.Object object)Serialize an object to a byte array. | 
|  java.lang.Object | toObject(byte[] byteArray)Deserialize an object from a byte array. | 
| static java.lang.Object | toObjectPL(byte[] byteArray)converts the byte array into an Object using the primary RJavaClassLoader | 
| static java.lang.String | u2w(java.lang.String fn)Utility to convert paths for windows. | 
| Methods inherited from class java.net.URLClassLoader | 
|---|
| addURL, definePackage, findResources, getPermissions, getURLs, newInstance, newInstance | 
| Methods inherited from class java.security.SecureClassLoader | 
|---|
| defineClass, defineClass | 
| Methods inherited from class java.lang.ClassLoader | 
|---|
| clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findLoadedClass, findSystemClass, getPackage, getPackages, getParent, getResource, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, loadClass, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners | 
| Methods inherited from class java.lang.Object | 
|---|
| clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait | 
| Field Detail | 
|---|
public static RJavaClassLoader primaryLoader
public static boolean verbose
true
public boolean useSystem
| Constructor Detail | 
|---|
public RJavaClassLoader(java.lang.String path,
                        java.lang.String libpath)
path - path of the rJava packagelibpath - lib sub directory of the rJava package| Method Detail | 
|---|
public static RJavaClassLoader getPrimaryLoader()
protected java.lang.Class findClass(java.lang.String name)
                             throws java.lang.ClassNotFoundException
findClass in class java.net.URLClassLoaderjava.lang.ClassNotFoundExceptionpublic java.net.URL findResource(java.lang.String name)
findResource in class java.net.URLClassLoader
public void addRLibrary(java.lang.String name,
                        java.lang.String path)
public void addClassPath(java.lang.String cp)
public void addClassPath(java.lang.String[] cp)
public java.lang.String[] getClassPath()
protected java.lang.String findLibrary(java.lang.String name)
findLibrary in class java.lang.ClassLoader
public void bootClass(java.lang.String cName,
                      java.lang.String mName,
                      java.lang.String[] args)
               throws java.lang.IllegalAccessException,
                      java.lang.reflect.InvocationTargetException,
                      java.lang.NoSuchMethodException,
                      java.lang.ClassNotFoundException
cName - class to bootmName - method to boot (typically main). The method must take a String[] as parameterargs - arguments to pass to the method
java.lang.IllegalAccessException
java.lang.reflect.InvocationTargetException
java.lang.NoSuchMethodException
java.lang.ClassNotFoundExceptionpublic static void setDebug(int level)
level - debug level. verbose (>0), quiet otherwisepublic static java.lang.String u2w(java.lang.String fn)
fn - file namepublic static void main(java.lang.String[] args)
This uses the system properties:
rjava.path : path of the rJava packagerjava.lib  : lib sub directory of the rJava packagemain.class : main class to "boot", assumes Main if not specifiedrjava.class.path : set of paths to populate the initiate the class pathand boots the "main" method of the specified main.class, 
 passing the args down to the booted class
This makes sure R and rJava are known by the class loader
public static byte[] toByte(java.lang.Object object)
                     throws java.lang.Exception
object - object to serialize
java.lang.Exception
public java.lang.Object toObject(byte[] byteArray)
                          throws java.lang.Exception
byteArray - 
java.lang.Exception
public static java.lang.Object toObjectPL(byte[] byteArray)
                                   throws java.lang.Exception
java.lang.Exception| 
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