org.opennms.bb.dp.poller.plugins
Class JARClassLoader
java.lang.Object
|
+--java.lang.ClassLoader
|
+--org.opennms.bb.dp.poller.plugins.JARClassLoader
- public class JARClassLoader
- extends ClassLoader
This class is responsible for loading plugin classes from
jar files.
- Version:
- $Revision: 1.2 $
- Author:
- Jason Johns, OpenNMS
Inner Class Summary |
static class |
JARClassLoader.JAR
Adapted from the JARClassLoader.java source from the jEdit project. |
Fields inherited from class java.lang.ClassLoader |
bootstrapClassPath, classes, defaultDomain, defaultPermissions, getClassLoaderPerm, initialized, loadedLibraryNames, nativeLibraries, nativeLibraryContext, nocerts, package2certs, packages, parent, scl, sclSet, sys_paths, systemNativeLibraries, usr_paths |
Constructor Summary |
JARClassLoader(String path)
Constructor, loads any classes from a jar file on the
filesystem. |
Methods inherited from class java.lang.ClassLoader |
, addClass, check, checkCerts, checkPackageAccess, compareCerts, copyFrom, defineClass, defineClass, defineClass, defineClass0, definePackage, findBootstrapClass, findBootstrapClass0, findClass, findLibrary, findLoadedClass, findNative, findResource, findResources, findSystemClass, getBootstrapClassPath, getBootstrapResource, getBootstrapResources, getCallerClassLoader, getDefaultDomain, getGetClassLoaderPerm, getPackage, getPackages, getParent, getResource, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, initializePath, isAncestor, loadClass, loadClass, loadClassInternal, loadLibrary, loadLibrary0, removeSystemClassLoader, resolveClass, resolveClass0, setSigners |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait |
m_jar
private JARClassLoader.JAR m_jar
- A jar file read from disk
m_zipFile
private ZipFile m_zipFile
- Used to open a jar file and load it
JARClassLoader
public JARClassLoader(String path)
throws IOException
- Constructor, loads any classes from a jar file on the
filesystem.
- Parameters:
String
- path, the path of the jar file to open
fileToClass
public static String fileToClass(String name)
- Adapted from the JARClassLoader.java source from the jEdit project.
Converts a file name to a class name. All slash characters are
replaced with periods and the trailing '.class' is removed.
- Parameters:
name
- The file name
getJar
public JARClassLoader.JAR getJar()
- This method returns the jar file that was created
- Returns:
- JAR, a newly constructed jar file
loadClassFromZip
private Class loadClassFromZip(String fileName,
boolean resolveIt)
throws ClassNotFoundException
- Adapted from the JARClassLoader.java source from the jEdit project.
loadPluginClass
private void loadPluginClass(String aClassName,
JARClassLoader.JAR aJar)
- This method gets a newly constructed class from the jar file
and creates a new instance of it and loads it into a JAR file
object.
- Parameters:
String
- aClassName, the name of the class in the jar fileJAR
- aJar, the JAR object to add the class instance to