+++ /dev/null
-/* Copyright (C) 2000, 2001 Free Software Foundation
-
- This file is part of libgcj.
-
- This software is copyrighted work licensed under the terms of the
- Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
- details. */
-
-package javax.naming.spi;
-
-import java.util.*;
-import javax.naming.*;
-
-public class NamingManager
-{
- public static final String CPE = "java.naming.spi.CannotProceedException";
-
- private static InitialContextFactoryBuilder icfb = null;
- private static ObjectFactoryBuilder ofb = null;
-
- // This class cannot be instantiated.
- NamingManager ()
- {
- }
-
- public static boolean hasInitialContextFactoryBuilder ()
- {
- return icfb != null;
- }
-
- public static Context getInitialContext (Hashtable environment)
- throws NamingException
- {
- InitialContextFactory icf = null;
-
- if (icfb != null)
- icf = icfb.createInitialContextFactory(environment);
- else
- {
- String java_naming_factory_initial = null;
- if (environment != null)
- java_naming_factory_initial
- = (String) environment.get (Context.INITIAL_CONTEXT_FACTORY);
- if (java_naming_factory_initial == null)
- java_naming_factory_initial =
- System.getProperty (Context.INITIAL_CONTEXT_FACTORY);
- if (java_naming_factory_initial == null)
- throw new
- NoInitialContextException ("Can't find property: "
- + Context.INITIAL_CONTEXT_FACTORY);
-
- try
- {
- icf = (InitialContextFactory) Class.forName (java_naming_factory_initial).newInstance ();
- }
- catch (Exception exception)
- {
- NoInitialContextException e
- = new NoInitialContextException ("Can't load InitialContextFactory class: "
- + java_naming_factory_initial);
- e.setRootCause(exception);
- throw e;
- }
- }
-
- return icf.getInitialContext (environment);
- }
-
- static Context getURLContext (Object refInfo,
- Name name,
- Context nameCtx,
- String scheme,
- Hashtable environment)
- throws NamingException
- {
- String prefixes = null;
- if (environment != null)
- prefixes = (String) environment.get (Context.URL_PKG_PREFIXES);
- if (prefixes == null)
- prefixes = System.getProperty (Context.URL_PKG_PREFIXES);
- if (prefixes == null)
- {
- // Specified as the default in the docs. Unclear if this is
- // right for us.
- prefixes = "com.sun.jndi.url";
- }
-
- scheme += "URLContextFactory";
-
- StringTokenizer tokens = new StringTokenizer (prefixes, ":");
- while (tokens.hasMoreTokens ())
- {
- String aTry = tokens.nextToken ();
- try
- {
- Class factoryClass = Class.forName (aTry + "." + scheme);
- ObjectFactory factory =
- (ObjectFactory) factoryClass.newInstance ();
- Object obj = factory.getObjectInstance (refInfo, name,
- nameCtx, environment);
- Context ctx = (Context) obj;
- if (ctx != null)
- return ctx;
- }
- catch (ClassNotFoundException _1)
- {
- // Ignore it.
- }
- catch (ClassCastException _2)
- {
- // This means that the class we found was not an
- // ObjectFactory or that the factory returned something
- // which was not a Context.
- }
- catch (InstantiationException _3)
- {
- // If we couldn't instantiate the factory we might get
- // this.
- }
- catch (IllegalAccessException _4)
- {
- // Another possibility when instantiating.
- }
- catch (NamingException _5)
- {
- throw _5;
- }
- catch (Exception _6)
- {
- // Anything from getObjectInstance.
- }
- }
-
- return null;
- }
-
- public static Context getURLContext (String scheme,
- Hashtable environment)
- throws NamingException
- {
- return getURLContext (null, null, null, scheme, environment);
- }
-
- public static void setObjectFactoryBuilder (ObjectFactoryBuilder builder)
- throws NamingException
- {
- SecurityManager sm = System.getSecurityManager ();
- if (sm != null)
- sm.checkSetFactory ();
- // Once the builder is installed it cannot be replaced.
- if (ofb != null)
- throw new IllegalStateException ("builder already installed");
- if (builder != null)
- ofb = builder;
- }
-
- static StringTokenizer getPlusPath (String property, Hashtable env,
- Context nameCtx)
- throws NamingException
- {
- String path = (String) env.get (property);
- if (nameCtx == null)
- nameCtx = getInitialContext (env);
- String path2 = (String) nameCtx.getEnvironment ().get (property);
- if (path == null)
- path = path2;
- else if (path2 != null)
- path += ":" + path2;
- return new StringTokenizer (path, ":");
- }
-
- public static Object getObjectInstance (Object refInfo,
- Name name,
- Context nameCtx,
- Hashtable environment)
- throws Exception
- {
- ObjectFactory factory = null;
-
- if (ofb != null)
- factory = ofb.createObjectFactory (refInfo, environment);
- else
- {
- // First see if we have a Reference or a Referenceable. If so
- // we do some special processing.
- Object ref2 = refInfo;
- if (refInfo instanceof Referenceable)
- ref2 = ((Referenceable) refInfo).getReference ();
- if (ref2 instanceof Reference)
- {
- Reference ref = (Reference) ref2;
-
- // If we have a factory class name then we use that.
- String fClass = ref.getFactoryClassName ();
- if (fClass != null)
- {
- // Exceptions here are passed to the caller.
- Class k = Class.forName (fClass);
- factory = (ObjectFactory) k.newInstance ();
- }
- else
- {
- // There's no factory class name. If the address is a
- // StringRefAddr with address type `URL', then we try
- // the URL's context factory.
- Enumeration e = ref.getAll ();
- while (e.hasMoreElements ())
- {
- RefAddr ra = (RefAddr) e.nextElement ();
- if (ra instanceof StringRefAddr
- && "URL".equals (ra.getType ()))
- {
- factory
- = (ObjectFactory) getURLContext (refInfo,
- name,
- nameCtx,
- (String) ra.getContent (),
- environment);
- Object obj = factory.getObjectInstance (refInfo,
- name,
- nameCtx,
- environment);
- if (obj != null)
- return obj;
- }
- }
-
- // Have to try the next step.
- factory = null;
- }
- }
-
- // Now look at OBJECT_FACTORIES to find the factory.
- if (factory == null)
- {
- StringTokenizer tokens = getPlusPath (Context.OBJECT_FACTORIES,
- environment, nameCtx);
-
- while (tokens.hasMoreTokens ())
- {
- String klassName = tokens.nextToken ();
- Class k = Class.forName (klassName);
- factory = (ObjectFactory) k.newInstance ();
- Object obj = factory.getObjectInstance (refInfo, name,
- nameCtx, environment);
- if (obj != null)
- return obj;
- }
-
- // Failure.
- return refInfo;
- }
- }
-
- if (factory == null)
- return refInfo;
- Object obj = factory.getObjectInstance (refInfo, name,
- nameCtx, environment);
- return obj == null ? refInfo : obj;
- }
-
- public static void setInitialContextFactoryBuilder (InitialContextFactoryBuilder builder)
- throws NamingException
- {
- SecurityManager sm = System.getSecurityManager ();
- if (sm != null)
- sm.checkSetFactory ();
- // Once the builder is installed it cannot be replaced.
- if (icfb != null)
- throw new IllegalStateException ("builder already installed");
- if (builder != null)
- icfb = builder;
- }
-
- public static Context getContinuationContext (CannotProceedException cpe)
- throws NamingException
- {
- Hashtable env = cpe.getEnvironment ();
- if (env != null)
- env.put (CPE, cpe);
-
- // It is really unclear to me if this is right.
- try
- {
- Object obj = getObjectInstance (null, cpe.getAltName (),
- cpe.getAltNameCtx (), env);
- if (obj != null)
- return (Context) obj;
- }
- catch (Exception _)
- {
- }
-
- throw cpe;
- }
-
- public static Object getStateToBind (Object obj, Name name,
- Context nameCtx, Hashtable environment)
- throws NamingException
- {
- StringTokenizer tokens = getPlusPath (Context.STATE_FACTORIES,
- environment, nameCtx);
- while (tokens.hasMoreTokens ())
- {
- String klassName = tokens.nextToken ();
- try
- {
- Class k = Class.forName (klassName);
- StateFactory factory = (StateFactory) k.newInstance ();
- Object o = factory.getStateToBind (obj, name, nameCtx,
- environment);
- if (o != null)
- return o;
- }
- catch (ClassNotFoundException _1)
- {
- // Ignore it.
- }
- catch (ClassCastException _2)
- {
- // This means that the class we found was not an
- // ObjectFactory or that the factory returned something
- // which was not a Context.
- }
- catch (InstantiationException _3)
- {
- // If we couldn't instantiate the factory we might get
- // this.
- }
- catch (IllegalAccessException _4)
- {
- // Another possibility when instantiating.
- }
- }
-
- return obj;
- }
-}
projects / msp430-gcc.git / blobdiff