/*
* Copyright 1999-2005 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
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*/
package com.sun.jndi.cosnaming;
import javax.naming.*;
import javax.naming.directory.*;
import javax.naming.spi.*;
import org.omg.CosNaming.*;
import org.omg.CosNaming.NamingContextPackage.*;
import org.omg.CORBA.*;
/**
* A convenience class to map the COS Naming exceptions to the JNDI exceptions.
* @author Raj Krishnamurthy
*/
public final class ExceptionMapper {
private ExceptionMapper() {} // ensure no instance
private static final boolean debug = false;
public static final NamingException mapException(Exception e,
CNCtx ctx, NameComponent[] inputName) throws NamingException {
if (e instanceof NamingException) {
return (NamingException)e;
}
if (e instanceof RuntimeException) {
throw (RuntimeException)e;
}
NamingException ne;
if (e instanceof NotFound) {
if (ctx.federation) {
return tryFed((NotFound)e, ctx, inputName);
} else {
ne = new NameNotFoundException();
}
} else if (e instanceof CannotProceed) {
ne = new CannotProceedException();
NamingContext nc = ((CannotProceed) e).cxt;
NameComponent[] rest = ((CannotProceed) e).rest_of_name;
// %%% We assume that rest returns *all* unprocessed components.
// Don't' know if that is a good assumption, given
// NotFound doesn't set rest as expected. -RL
if (inputName != null && (inputName.length > rest.length)) {
NameComponent[] resolvedName =
new NameComponent[inputName.length - rest.length];
System.arraycopy(inputName, 0, resolvedName, 0, resolvedName.length);
// Wrap resolved NamingContext inside a CNCtx
// Guess that its name (which is relative to ctx)
// is the part of inputName minus rest_of_name
ne.setResolvedObj(new CNCtx(ctx._orb, ctx.orbTracker, nc,
ctx._env,
ctx.makeFullName(resolvedName)));
} else {
ne.setResolvedObj(ctx);
}
ne.setRemainingName(CNNameParser.cosNameToName(rest));
} else if (e instanceof InvalidName) {
ne = new InvalidNameException();
} else if (e instanceof AlreadyBound) {
ne = new NameAlreadyBoundException();
} else if (e instanceof NotEmpty) {
ne = new ContextNotEmptyException();
} else {
ne = new NamingException("Unknown reasons");
}
ne.setRootCause(e);
return ne;
}
private static final NamingException tryFed(NotFound e, CNCtx ctx,
NameComponent[] inputName) throws NamingException {
NameComponent[] rest = ((NotFound) e).rest_of_name;
if (debug) {
System.out.println(((NotFound)e).why.value());
System.out.println(rest.length);
}
// %%% Using 1.2 & 1.3 Sun's tnameserv, 'rest' contains only the first
// component that failed, not *rest* as advertized. This is useless
// because what if you have something like aa/aa/aa/aa/aa.
// If one of those is not found, you get "aa" as 'rest'.
if (rest.length == 1 && inputName != null) {
// Check that we're not talking to 1.2/1.3 Sun tnameserv
NameComponent lastIn = inputName[inputName.length-1];
if (rest[0].id.equals(lastIn.id) &&
rest[0].kind != null &&
rest[0].kind.equals(lastIn.kind)) {
// Might be legit
;
} else {
// Due to 1.2/1.3 bug that always returns single-item 'rest'
NamingException ne = new NameNotFoundException();
ne.setRemainingName(CNNameParser.cosNameToName(rest));
ne.setRootCause(e);
throw ne;
}
}
// Fixed in 1.4; perform calculations based on correct (1.4) behavior
// Calculate the components of the name that has been resolved
NameComponent[] resolvedName = null;
int len = 0;
if (inputName != null && (inputName.length >= rest.length)) {
if (e.why == NotFoundReason.not_context) {
// First component of rest is found but not a context; keep it
// as part of resolved name
len = inputName.length - (rest.length - 1);
// Remove resolved component from rest
if (rest.length == 1) {
// No more remaining
rest = null;
} else {
NameComponent[] tmp = new NameComponent[rest.length-1];
System.arraycopy(rest, 1, tmp, 0, tmp.length);
rest = tmp;
}
} else {
len = inputName.length - rest.length;
}
if (len > 0) {
resolvedName = new NameComponent[len];
System.arraycopy(inputName, 0, resolvedName, 0, len);
}
}
// Create CPE and set common fields
CannotProceedException cpe = new CannotProceedException();
cpe.setRootCause(e);
if (rest != null && rest.length > 0) {
cpe.setRemainingName(CNNameParser.cosNameToName(rest));
}
cpe.setEnvironment(ctx._env);
if (debug) {
System.out.println("rest of name: " + cpe.getRemainingName());
}
// Lookup resolved name to get resolved object
final java.lang.Object resolvedObj =
(resolvedName != null) ? ctx.callResolve(resolvedName) : ctx;
if (resolvedObj instanceof javax.naming.Context) {
// obj is a context and child is not found
// try getting its nns dynamically by constructing
// a Reference containing obj.
RefAddr addr = new RefAddr("nns") {
public java.lang.Object getContent() {
return resolvedObj;
}
private static final long serialVersionUID =
669984699392133792L;
};
Reference ref = new Reference("java.lang.Object", addr);
// Resolved name has trailing slash to indicate nns
CompositeName cname = new CompositeName();
cname.add(""); // add trailing slash
cpe.setResolvedObj(ref);
cpe.setAltName(cname);
cpe.setAltNameCtx((javax.naming.Context)resolvedObj);
return cpe;
} else {
// Not a context, use object factory to transform object.
Name cname = CNNameParser.cosNameToName(resolvedName);
java.lang.Object resolvedObj2;
try {
resolvedObj2 = NamingManager.getObjectInstance(resolvedObj,
cname, ctx, ctx._env);
} catch (NamingException ge) {
throw ge;
} catch (Exception ge) {
NamingException ne = new NamingException(
"problem generating object using object factory");
ne.setRootCause(ge);
throw ne;
}
// If a context, continue operation with context
if (resolvedObj2 instanceof javax.naming.Context) {
cpe.setResolvedObj(resolvedObj2);
} else {
// Add trailing slash
cname.add("");
cpe.setAltName(cname);
// Create nns reference
final java.lang.Object rf2 = resolvedObj2;
RefAddr addr = new RefAddr("nns") {
public java.lang.Object getContent() {
return rf2;
}
private static final long serialVersionUID =
-785132553978269772L;
};
Reference ref = new Reference("java.lang.Object", addr);
cpe.setResolvedObj(ref);
cpe.setAltNameCtx(ctx);
}
return cpe;
}
}
}