/**
* Create a naming context servant. Runs the super constructor.
*
* @param orb an ORB object.
* @exception java.lang.Exception a Java exception.
*/
public NamingContextImpl(ORB orb, POA poa) throws java.lang.Exception {
super();
this.orb = orb;
wrapper = NamingSystemException.get(orb, CORBALogDomains.NAMING_UPDATE);
insImpl = new InterOperableNamingImpl();
this.nsPOA = poa;
readLogger = orb.getLogger(CORBALogDomains.NAMING_READ);
updateLogger = orb.getLogger(CORBALogDomains.NAMING_UPDATE);
lifecycleLogger = orb.getLogger(CORBALogDomains.NAMING_LIFECYCLE);
}
/**
* Class NamingContextImpl implements the org.omg.CosNaming::NamingContext interface, but does not
* implement the methods associated with maintaining the "table" of current bindings in a
* NamingContext. Instead, this implementation assumes that the derived implementation implements
* the NamingContextDataStore interface, which has the necessary methods. This allows multiple
* NamingContext implementations that differ in storage of the bindings, as well as implementations
* of interfaces derived from CosNaming::NamingContext that still reuses the implementation.
*
* <p>The operations bind(), rebind(), bind_context() and rebind_context() are all really
* implemented by doBind(). resolve() is really implemented by doResolve(), unbind() by doUnbind().
* list(), new_context() and destroy() uses the NamingContextDataStore interface directly. All the
* doX() methods are public static. They synchronize on the NamingContextDataStore object.
*
* <p>An implementation a NamingContext must extend this class and implement the
* NamingContextDataStore interface with the operations: Bind(), Resolve(), Unbind(), List(),
* NewContext() and Destroy(). Calls to these methods are synchronized; these methods should
* therefore not be synchronized.
*/
public abstract class NamingContextImpl extends NamingContextExtPOA
implements NamingContextDataStore {
protected POA nsPOA;
private Logger readLogger, updateLogger, lifecycleLogger;
private NamingSystemException wrapper;
private static NamingSystemException staticWrapper =
NamingSystemException.get(CORBALogDomains.NAMING_UPDATE);
// The grammer for Parsing and Building Interoperable Stringified Names
// are implemented in this class
private InterOperableNamingImpl insImpl;
/**
* Create a naming context servant. Runs the super constructor.
*
* @param orb an ORB object.
* @exception java.lang.Exception a Java exception.
*/
public NamingContextImpl(ORB orb, POA poa) throws java.lang.Exception {
super();
this.orb = orb;
wrapper = NamingSystemException.get(orb, CORBALogDomains.NAMING_UPDATE);
insImpl = new InterOperableNamingImpl();
this.nsPOA = poa;
readLogger = orb.getLogger(CORBALogDomains.NAMING_READ);
updateLogger = orb.getLogger(CORBALogDomains.NAMING_UPDATE);
lifecycleLogger = orb.getLogger(CORBALogDomains.NAMING_LIFECYCLE);
}
public POA getNSPOA() {
return nsPOA;
}
/**
* Bind an object under a name in this NamingContext. If the name contains multiple (n)
* components, n-1 will be resolved in this NamingContext and the object bound in resulting
* NamingContext. An exception is thrown if a binding with the supplied name already exists. If
* the object to be bound is a NamingContext it will not participate in a recursive resolve.
*
* @param n a sequence of NameComponents which is the name under which the object will be bound.
* @param obj the object reference to be bound.
* @exception org.omg.CosNaming.NamingContextPackage.NotFound A name with multiple components was
* supplied, but the first component could not be resolved.
* @exception org.omg.CosNaming.NamingContextPackage.CannotProceed Could not proceed in resolving
* the n-1 components of the supplied name.
* @exception org.omg.CosNaming.NamingContextPackage.InvalidName The supplied name is invalid
* (i.e., has length less than 1).
* @exception org.omg.CosNaming.NamingContextPackage.AlreadyBound An object is already bound under
* the supplied name.
* @exception org.omg.CORBA.SystemException One of a fixed set of CORBA system exceptions.
* @see doBind
*/
public void bind(NameComponent[] n, org.omg.CORBA.Object obj)
throws org.omg.CosNaming.NamingContextPackage.NotFound,
org.omg.CosNaming.NamingContextPackage.CannotProceed,
org.omg.CosNaming.NamingContextPackage.InvalidName,
org.omg.CosNaming.NamingContextPackage.AlreadyBound {
if (obj == null) {
updateLogger.warning(
LogKeywords.NAMING_BIND + " unsuccessful because NULL Object cannot be Bound ");
throw wrapper.objectIsNull();
}
// doBind implements all four flavors of binding
NamingContextDataStore impl = (NamingContextDataStore) this;
doBind(impl, n, obj, false, BindingType.nobject);
if (updateLogger.isLoggable(Level.FINE)) {
// isLoggable call to make sure that we save some precious
// processor cycles, if there is no need to log.
updateLogger.fine(
LogKeywords.NAMING_BIND_SUCCESS + " Name = " + NamingUtils.getDirectoryStructuredName(n));
}
}
/**
* Bind a NamingContext under a name in this NamingContext. If the name contains multiple (n)
* components, n-1 will be resolved in this NamingContext and the object bound in resulting
* NamingContext. An exception is thrown if a binding with the supplied name already exists. The
* NamingContext will participate in recursive resolving.
*
* @param n a sequence of NameComponents which is the name under which the object will be bound.
* @param obj the NamingContect object reference to be bound.
* @exception org.omg.CosNaming.NamingContextPackage.NotFound A name with multiple components was
* supplied, but the first component could not be resolved.
* @exception org.omg.CosNaming.NamingContextPackage.CannotProceed Could not proceed in resolving
* the n-1 components of the supplied name.
* @exception org.omg.CosNaming.NamingContextPackage.InvalidName The supplied name is invalid
* (i.e., has length less than 1).
* @exception org.omg.CosNaming.NamingContextPackage.AlreadyBound An object is already bound under
* the supplied name.
* @exception org.omg.CORBA.SystemException One of a fixed set of CORBA system exceptions.
* @see doBind
*/
public void bind_context(NameComponent[] n, NamingContext nc)
throws org.omg.CosNaming.NamingContextPackage.NotFound,
org.omg.CosNaming.NamingContextPackage.CannotProceed,
org.omg.CosNaming.NamingContextPackage.InvalidName,
org.omg.CosNaming.NamingContextPackage.AlreadyBound {
if (nc == null) {
updateLogger.warning(LogKeywords.NAMING_BIND_FAILURE + " NULL Context cannot be Bound ");
throw new BAD_PARAM("Naming Context should not be null ");
}
// doBind implements all four flavors of binding
NamingContextDataStore impl = (NamingContextDataStore) this;
doBind(impl, n, nc, false, BindingType.ncontext);
if (updateLogger.isLoggable(Level.FINE)) {
// isLoggable call to make sure that we save some precious
// processor cycles, if there is no need to log.
updateLogger.fine(
LogKeywords.NAMING_BIND_SUCCESS + " Name = " + NamingUtils.getDirectoryStructuredName(n));
}
}
/**
* Bind an object under a name in this NamingContext. If the name contains multiple (n)
* components, n-1 will be resolved in this NamingContext and the object bound in resulting
* NamingContext. If a binding under the supplied name already exists it will be unbound first. If
* the object to be bound is a NamingContext it will not participate in a recursive resolve.
*
* @param n a sequence of NameComponents which is the name under which the object will be bound.
* @param obj the object reference to be bound.
* @exception org.omg.CosNaming.NamingContextPackage.NotFound A name with multiple components was
* supplied, but the first component could not be resolved.
* @exception org.omg.CosNaming.NamingContextPackage.CannotProceed Could not proceed in resolving
* the n-1 components of the supplied name.
* @exception org.omg.CosNaming.NamingContextPackage.InvalidName The supplied name is invalid
* (i.e., has length less than 1).
* @exception org.omg.CORBA.SystemException One of a fixed set of CORBA system exceptions.
* @see doBind
*/
public void rebind(NameComponent[] n, org.omg.CORBA.Object obj)
throws org.omg.CosNaming.NamingContextPackage.NotFound,
org.omg.CosNaming.NamingContextPackage.CannotProceed,
org.omg.CosNaming.NamingContextPackage.InvalidName {
if (obj == null) {
updateLogger.warning(LogKeywords.NAMING_REBIND_FAILURE + " NULL Object cannot be Bound ");
throw wrapper.objectIsNull();
}
try {
// doBind implements all four flavors of binding
NamingContextDataStore impl = (NamingContextDataStore) this;
doBind(impl, n, obj, true, BindingType.nobject);
} catch (org.omg.CosNaming.NamingContextPackage.AlreadyBound ex) {
updateLogger.warning(
LogKeywords.NAMING_REBIND_FAILURE
+ NamingUtils.getDirectoryStructuredName(n)
+ " is already bound to a Naming Context");
// This should not happen
throw wrapper.namingCtxRebindAlreadyBound(ex);
}
if (updateLogger.isLoggable(Level.FINE)) {
// isLoggable call to make sure that we save some precious
// processor cycles, if there is no need to log.
updateLogger.fine(
LogKeywords.NAMING_REBIND_SUCCESS
+ " Name = "
+ NamingUtils.getDirectoryStructuredName(n));
}
}
/**
* Bind a NamingContext under a name in this NamingContext. If the name contains multiple (n)
* components, the first n-1 components will be resolved in this NamingContext and the object
* bound in resulting NamingContext. If a binding under the supplied name already exists it will
* be unbound first. The NamingContext will participate in recursive resolving.
*
* @param n a sequence of NameComponents which is the name under which the object will be bound.
* @param obj the object reference to be bound.
* @exception org.omg.CosNaming.NamingContextPackage.NotFound A name with multiple components was
* supplied, but the first component could not be resolved.
* @exception org.omg.CosNaming.NamingContextPackage.CannotProceed Could not proceed in resolving
* the n-1 components of the supplied name.
* @exception org.omg.CosNaming.NamingContextPackage.InvalidName The supplied name is invalid
* (i.e., has length less than 1).
* @exception org.omg.CORBA.SystemException One of a fixed set of CORBA system exceptions.
* @see doBind
*/
public void rebind_context(NameComponent[] n, NamingContext nc)
throws org.omg.CosNaming.NamingContextPackage.NotFound,
org.omg.CosNaming.NamingContextPackage.CannotProceed,
org.omg.CosNaming.NamingContextPackage.InvalidName {
if (nc == null) {
updateLogger.warning(LogKeywords.NAMING_REBIND_FAILURE + " NULL Context cannot be Bound ");
throw wrapper.objectIsNull();
}
try {
// doBind implements all four flavors of binding
NamingContextDataStore impl = (NamingContextDataStore) this;
doBind(impl, n, nc, true, BindingType.ncontext);
} catch (org.omg.CosNaming.NamingContextPackage.AlreadyBound ex) {
// This should not happen
updateLogger.warning(
LogKeywords.NAMING_REBIND_FAILURE
+ NamingUtils.getDirectoryStructuredName(n)
+ " is already bound to a CORBA Object");
throw wrapper.namingCtxRebindctxAlreadyBound(ex);
}
if (updateLogger.isLoggable(Level.FINE)) {
// isLoggable call to make sure that we save some precious
// processor cycles, if there is no need to log.
updateLogger.fine(
LogKeywords.NAMING_REBIND_SUCCESS
+ " Name = "
+ NamingUtils.getDirectoryStructuredName(n));
}
}
/**
* Resolve a name in this NamingContext and return the object reference bound to the name. If the
* name contains multiple (n) components, the first component will be resolved in this
* NamingContext and the remaining components resolved in the resulting NamingContext, provided
* that the NamingContext bound to the first component of the name was bound with bind_context().
*
* @param n a sequence of NameComponents which is the name to be resolved.
* @return the object reference bound under the supplied name.
* @exception org.omg.CosNaming.NamingContextPackage.NotFound A name with multiple components was
* supplied, but the first component could not be resolved.
* @exception org.omg.CosNaming.NamingContextPackage.CannotProceed Could not proceed in resolving
* the n-1 components of the supplied name.
* @exception org.omg.CosNaming.NamingContextPackage.InvalidName The supplied name is invalid
* (i.e., has length less than 1).
* @exception org.omg.CORBA.SystemException One of a fixed set of CORBA system exceptions.
* @see doResolve
*/
public org.omg.CORBA.Object resolve(NameComponent[] n)
throws org.omg.CosNaming.NamingContextPackage.NotFound,
org.omg.CosNaming.NamingContextPackage.CannotProceed,
org.omg.CosNaming.NamingContextPackage.InvalidName {
// doResolve actually resolves
NamingContextDataStore impl = (NamingContextDataStore) this;
org.omg.CORBA.Object obj = doResolve(impl, n);
if (obj != null) {
if (readLogger.isLoggable(Level.FINE)) {
readLogger.fine(
LogKeywords.NAMING_RESOLVE_SUCCESS
+ " Name: "
+ NamingUtils.getDirectoryStructuredName(n));
}
} else {
readLogger.warning(
LogKeywords.NAMING_RESOLVE_FAILURE
+ " Name: "
+ NamingUtils.getDirectoryStructuredName(n));
}
return obj;
}
/**
* Remove a binding from this NamingContext. If the name contains multiple (n) components, the
* first n-1 components will be resolved from this NamingContext and the final component unbound
* in the resulting NamingContext.
*
* @param n a sequence of NameComponents which is the name to be unbound.
* @exception org.omg.CosNaming.NamingContextPackage.NotFound A name with multiple components was
* supplied, but the first component could not be resolved.
* @exception org.omg.CosNaming.NamingContextPackage.CannotProceed Could not proceed in resolving
* the n-1 components of the supplied name.
* @exception org.omg.CosNaming.NamingContextPackage.InvalidName The supplied name is invalid
* (i.e., has length less than 1).
* @exception org.omg.CORBA.SystemException One of a fixed set of CORBA system exceptions.
* @see doUnbind
*/
public void unbind(NameComponent[] n)
throws org.omg.CosNaming.NamingContextPackage.NotFound,
org.omg.CosNaming.NamingContextPackage.CannotProceed,
org.omg.CosNaming.NamingContextPackage.InvalidName {
// doUnbind actually unbinds
NamingContextDataStore impl = (NamingContextDataStore) this;
doUnbind(impl, n);
if (updateLogger.isLoggable(Level.FINE)) {
// isLoggable call to make sure that we save some precious
// processor cycles, if there is no need to log.
updateLogger.fine(
LogKeywords.NAMING_UNBIND_SUCCESS
+ " Name: "
+ NamingUtils.getDirectoryStructuredName(n));
}
}
/**
* List the contents of this NamingContest. A sequence of bindings is returned (a BindingList)
* containing up to the number of requested bindings, and a BindingIterator object reference is
* returned for iterating over the remaining bindings.
*
* @param how_many The number of requested bindings in the BindingList.
* @param bl The BindingList as an out parameter.
* @param bi The BindingIterator as an out parameter.
* @exception org.omg.CORBA.SystemException One of a fixed set of CORBA system exceptions.
* @see BindingListHolder
* @see BindingIteratorImpl
*/
public void list(int how_many, BindingListHolder bl, BindingIteratorHolder bi) {
// List actually generates the list
NamingContextDataStore impl = (NamingContextDataStore) this;
synchronized (impl) {
impl.List(how_many, bl, bi);
}
if (readLogger.isLoggable(Level.FINE) && (bl.value != null)) {
// isLoggable call to make sure that we save some precious
// processor cycles, if there is no need to log.
readLogger.fine(
LogKeywords.NAMING_LIST_SUCCESS
+ "list("
+ how_many
+ ") -> bindings["
+ bl.value.length
+ "] + iterator: "
+ bi.value);
}
}
/**
* Create a NamingContext object and return its object reference.
*
* @return an object reference for a new NamingContext object implemented by this Name Server.
* @exception org.omg.CORBA.SystemException One of a fixed set of CORBA system exceptions.
*/
public synchronized NamingContext new_context() {
// Create actually creates a new naming context
lifecycleLogger.fine("Creating New Naming Context ");
NamingContextDataStore impl = (NamingContextDataStore) this;
synchronized (impl) {
NamingContext nctx = impl.NewContext();
if (nctx != null) {
lifecycleLogger.fine(LogKeywords.LIFECYCLE_CREATE_SUCCESS);
} else {
// If naming context is null, then that must be a serious
// error.
lifecycleLogger.severe(LogKeywords.LIFECYCLE_CREATE_FAILURE);
}
return nctx;
}
}
/**
* Create a new NamingContext, bind it in this Naming Context and return its object reference.
* This is equivalent to using new_context() followed by bind_context() with the supplied name and
* the object reference for the newly created NamingContext.
*
* @param n a sequence of NameComponents which is the name to be unbound.
* @return an object reference for a new NamingContext object implemented by this Name Server,
* bound to the supplied name.
* @exception org.omg.CosNaming.NamingContextPackage.AlreadyBound An object is already bound under
* the supplied name.
* @exception org.omg.CosNaming.NamingContextPackage.NotFound A name with multiple components was
* supplied, but the first component could not be resolved.
* @exception org.omg.CosNaming.NamingContextPackage.CannotProceed Could not proceed in resolving
* the n-1 components of the supplied name.
* @exception org.omg.CosNaming.NamingContextPackage.InvalidName The supplied name is invalid
* (i.e., has length less than 1).
* @exception org.omg.CORBA.SystemException One of a fixed set of CORBA system exceptions.
* @see new_context
* @see bind_context
*/
public NamingContext bind_new_context(NameComponent[] n)
throws org.omg.CosNaming.NamingContextPackage.NotFound,
org.omg.CosNaming.NamingContextPackage.AlreadyBound,
org.omg.CosNaming.NamingContextPackage.CannotProceed,
org.omg.CosNaming.NamingContextPackage.InvalidName {
NamingContext nc = null;
NamingContext rnc = null;
try {
if (debug) dprint("bind_new_context " + nameToString(n));
// The obvious solution:
nc = this.new_context();
this.bind_context(n, nc);
rnc = nc;
nc = null;
} finally {
try {
if (nc != null) nc.destroy();
} catch (org.omg.CosNaming.NamingContextPackage.NotEmpty e) {
}
}
if (updateLogger.isLoggable(Level.FINE)) {
// isLoggable call to make sure that we save some precious
// processor cycles, if there is no need to log.
updateLogger.fine(
LogKeywords.NAMING_BIND
+ "New Context Bound To "
+ NamingUtils.getDirectoryStructuredName(n));
}
return rnc;
}
/**
* Destroy this NamingContext object. If this NamingContext contains no bindings, the
* NamingContext is deleted.
*
* @exception org.omg.CosNaming.NamingContextPackage.NotEmpty This NamingContext is not empty
* (i.e., contains bindings).
* @exception org.omg.CORBA.SystemException One of a fixed set of CORBA system exceptions.
*/
public void destroy() throws org.omg.CosNaming.NamingContextPackage.NotEmpty {
lifecycleLogger.fine("Destroying Naming Context ");
NamingContextDataStore impl = (NamingContextDataStore) this;
synchronized (impl) {
if (impl.IsEmpty() == true) {
// The context is empty so it can be destroyed
impl.Destroy();
lifecycleLogger.fine(LogKeywords.LIFECYCLE_DESTROY_SUCCESS);
} else {
// This context is not empty!
// Not a fatal error, warning should do.
lifecycleLogger.warning(
LogKeywords.LIFECYCLE_DESTROY_FAILURE
+ " NamingContext children are not destroyed still..");
throw new NotEmpty();
}
}
}
/**
* Implements all four flavors of binding. It uses Resolve() to check if a binding already exists
* (for bind and bind_context), and unbind() to ensure that a binding does not already exist. If
* the length of the name is 1, then Bind() is called with the name and the object to bind.
* Otherwise, the first component of the name is resolved in this NamingContext and the
* appropriate form of bind passed to the resulting NamingContext. This method is static for
* maximal reuse - even for extended naming context implementations where the recursive semantics
* still apply.
*
* @param impl an implementation of NamingContextDataStore
* @param n a sequence of NameComponents which is the name under which the object will be bound.
* @param obj the object reference to be bound.
* @param rebind Replace an existing binding or not.
* @param bt Type of binding (as object or as context).
* @exception org.omg.CosNaming.NamingContextPackage.NotFound A name with multiple components was
* supplied, but the first component could not be resolved.
* @exception org.omg.CosNaming.NamingContextPackage.CannotProceed Could not * proceed in
* resolving the first component of the supplied name.
* @exception org.omg.CosNaming.NamingContextPackage.InvalidName The supplied name is invalid
* (i.e., has length less than 1).
* @exception org.omg.CosNaming.NamingContextPackage.AlreadyBound An object is already bound under
* the supplied name.
* @exception org.omg.CORBA.SystemException One of a fixed set of CORBA system exceptions.
* @see resolve
* @see unbind
* @see bind
* @see bind_context
* @see rebind
* @see rebind_context
*/
public static void doBind(
NamingContextDataStore impl,
NameComponent[] n,
org.omg.CORBA.Object obj,
boolean rebind,
org.omg.CosNaming.BindingType bt)
throws org.omg.CosNaming.NamingContextPackage.NotFound,
org.omg.CosNaming.NamingContextPackage.CannotProceed,
org.omg.CosNaming.NamingContextPackage.InvalidName,
org.omg.CosNaming.NamingContextPackage.AlreadyBound {
// Valid name?
if (n.length < 1) throw new InvalidName();
// At bottom level?
if (n.length == 1) {
// The identifier must be set
if ((n[0].id.length() == 0) && (n[0].kind.length() == 0)) {
throw new InvalidName();
}
// Ensure synchronization of backend
synchronized (impl) {
// Yes: bind object in this context under the name
BindingTypeHolder bth = new BindingTypeHolder();
if (rebind) {
org.omg.CORBA.Object objRef = impl.Resolve(n[0], bth);
if (objRef != null) {
// Refer Naming Service Doc:00-11-01 section 2.2.3.4
// If there is an object already bound with the name
// and the binding type is not ncontext a NotFound
// Exception with a reason of not a context has to be
// raised.
// Fix for bug Id: 4384628
if (bth.value.value() == BindingType.nobject.value()) {
if (bt.value() == BindingType.ncontext.value()) {
throw new NotFound(NotFoundReason.not_context, n);
}
} else {
// Previously a Context was bound and now trying to
// bind Object. It is invalid.
if (bt.value() == BindingType.nobject.value()) {
throw new NotFound(NotFoundReason.not_object, n);
}
}
impl.Unbind(n[0]);
}
} else {
if (impl.Resolve(n[0], bth) != null)
// "Resistence is futile." [Borg pickup line]
throw new AlreadyBound();
}
// Now there are no other bindings under this name
impl.Bind(n[0], obj, bt);
}
} else {
// No: bind in a different context
NamingContext context = resolveFirstAsContext(impl, n);
// Compute tail
NameComponent[] tail = new NameComponent[n.length - 1];
System.arraycopy(n, 1, tail, 0, n.length - 1);
// How should we propagate the bind
switch (bt.value()) {
case BindingType._nobject:
{
// Bind as object
if (rebind) context.rebind(tail, obj);
else context.bind(tail, obj);
}
break;
case BindingType._ncontext:
{
// Narrow to a naming context using Java casts. It must
// work.
NamingContext objContext = (NamingContext) obj;
// Bind as context
if (rebind) context.rebind_context(tail, objContext);
else context.bind_context(tail, objContext);
}
break;
default:
// This should not happen
throw staticWrapper.namingCtxBadBindingtype();
}
}
}
/**
* Implements resolving names in this NamingContext. The first component of the supplied name is
* resolved in this NamingContext by calling Resolve(). If there are no more components in the
* name, the resulting object reference is returned. Otherwise, the resulting object reference
* must have been bound as a context and be narrowable to a NamingContext. If this is the case,
* the remaining components of the name is resolved in the resulting NamingContext. This method is
* static for maximal reuse - even for extended naming context implementations where the recursive
* semantics still apply.
*
* @param impl an implementation of NamingContextDataStore
* @param n a sequence of NameComponents which is the name to be resolved.
* @return the object reference bound under the supplied name.
* @exception org.omg.CosNaming.NamingContextPackage.NotFound A name with multiple components was
* supplied, but the first component could not be resolved.
* @exception org.omg.CosNaming.NamingContextPackage.CannotProceed Could not proceed in resolving
* the first component of the supplied name.
* @exception org.omg.CosNaming.NamingContextPackage.InvalidName The supplied name is invalid
* (i.e., has length less than 1).
* @exception org.omg.CORBA.SystemException One of a fixed set of CORBA system exceptions.
* @see resolve
*/
public static org.omg.CORBA.Object doResolve(NamingContextDataStore impl, NameComponent[] n)
throws org.omg.CosNaming.NamingContextPackage.NotFound,
org.omg.CosNaming.NamingContextPackage.CannotProceed,
org.omg.CosNaming.NamingContextPackage.InvalidName {
org.omg.CORBA.Object obj = null;
BindingTypeHolder bth = new BindingTypeHolder();
// Length must be greater than 0
if (n.length < 1) throw new InvalidName();
// The identifier must be set
if (n.length == 1) {
synchronized (impl) {
// Resolve first level in this context
obj = impl.Resolve(n[0], bth);
}
if (obj == null) {
// Object was not found
throw new NotFound(NotFoundReason.missing_node, n);
}
return obj;
} else {
// n.length > 1
if ((n[1].id.length() == 0) && (n[1].kind.length() == 0)) {
throw new InvalidName();
}
NamingContext context = resolveFirstAsContext(impl, n);
// Compute restOfName = name[1..length]
NameComponent[] tail = new NameComponent[n.length - 1];
System.arraycopy(n, 1, tail, 0, n.length - 1);
// Resolve rest of name in context
try {
// First try to resolve using the local call, this should work
// most of the time unless there are federated naming contexts.
Servant servant = impl.getNSPOA().reference_to_servant(context);
return doResolve(((NamingContextDataStore) servant), tail);
} catch (Exception e) {
return context.resolve(tail);
}
}
}
/**
* Implements unbinding bound names in this NamingContext. If the name contains only one
* component, the name is unbound in this NamingContext using Unbind(). Otherwise, the first
* component of the name is resolved in this NamingContext and unbind passed to the resulting
* NamingContext. This method is static for maximal reuse - even for extended naming context
* implementations where the recursive semantics still apply.
*
* @param impl an implementation of NamingContextDataStore
* @param n a sequence of NameComponents which is the name to be unbound.
* @exception org.omg.CosNaming.NamingContextPackage.NotFound A name with multiple components was
* supplied, but the first component could not be resolved.
* @exception org.omg.CosNaming.NamingContextPackage.CannotProceed Could not proceed in resolving
* the n-1 components of the supplied name.
* @exception org.omg.CosNaming.NamingContextPackage.InvalidName The supplied name is invalid
* (i.e., has length less than 1).
* @exception org.omg.CORBA.SystemException One of a fixed set of CORBA system exceptions.
* @see resolve
*/
public static void doUnbind(NamingContextDataStore impl, NameComponent[] n)
throws org.omg.CosNaming.NamingContextPackage.NotFound,
org.omg.CosNaming.NamingContextPackage.CannotProceed,
org.omg.CosNaming.NamingContextPackage.InvalidName {
// Name valid?
if (n.length < 1) throw new InvalidName();
// Unbind here?
if (n.length == 1) {
// The identifier must be set
if ((n[0].id.length() == 0) && (n[0].kind.length() == 0)) {
throw new InvalidName();
}
org.omg.CORBA.Object objRef = null;
synchronized (impl) {
// Yes: unbind in this context
objRef = impl.Unbind(n[0]);
}
if (objRef == null)
// It was not bound
throw new NotFound(NotFoundReason.missing_node, n);
// Done
return;
} else {
// No: unbind in a different context
// Resolve first - must be resolveable
NamingContext context = resolveFirstAsContext(impl, n);
// Compute tail
NameComponent[] tail = new NameComponent[n.length - 1];
System.arraycopy(n, 1, tail, 0, n.length - 1);
// Propagate unbind to this context
context.unbind(tail);
}
}
/**
* Implements resolving a NameComponent in this context and narrowing it to
* CosNaming::NamingContext. It will throw appropriate exceptions if not found or not narrowable.
*
* @param impl an implementation of NamingContextDataStore
* @param n a NameComponents which is the name to be found.
* @exception org.omg.CosNaming.NamingContextPackage.NotFound The first component could not be
* resolved.
* @exception org.omg.CosNaming.NamingContextPackage.CannotProceed Could not proceed in resolving
* the first component of the supplied name.
* @exception org.omg.CORBA.SystemException One of a fixed set of CORBA system exceptions.
* @see resolve
*/
protected static NamingContext resolveFirstAsContext(
NamingContextDataStore impl, NameComponent[] n)
throws org.omg.CosNaming.NamingContextPackage.NotFound {
org.omg.CORBA.Object topRef = null;
BindingTypeHolder bth = new BindingTypeHolder();
NamingContext context = null;
synchronized (impl) {
// Resolve first - must be resolveable
topRef = impl.Resolve(n[0], bth);
if (topRef == null) {
// It was not bound
throw new NotFound(NotFoundReason.missing_node, n);
}
}
// Was it bound as a context?
if (bth.value != BindingType.ncontext) {
// It was not a context
throw new NotFound(NotFoundReason.not_context, n);
}
// Narrow to a naming context
try {
context = NamingContextHelper.narrow(topRef);
} catch (org.omg.CORBA.BAD_PARAM ex) {
// It was not a context
throw new NotFound(NotFoundReason.not_context, n);
}
// Hmm. must be ok
return context;
}
/**
* This operation creates a stringified name from the array of Name components.
*
* @param n Name of the object
* <p>
* @exception org.omg.CosNaming.NamingContextExtPackage.InvalidName Indicates the name does not
* identify a binding.
* <p>
*/
public String to_string(org.omg.CosNaming.NameComponent[] n)
throws org.omg.CosNaming.NamingContextPackage.InvalidName {
// Name valid?
if ((n == null) || (n.length == 0)) {
throw new InvalidName();
}
NamingContextDataStore impl = (NamingContextDataStore) this;
String theStringifiedName = insImpl.convertToString(n);
if (theStringifiedName == null) {
throw new InvalidName();
}
return theStringifiedName;
}
/**
* This operation converts a Stringified Name into an equivalent array of Name Components.
*
* @param sn Stringified Name of the object
* <p>
* @exception org.omg.CosNaming.NamingContextExtPackage.InvalidName Indicates the name does not
* identify a binding.
* <p>
*/
public org.omg.CosNaming.NameComponent[] to_name(String sn)
throws org.omg.CosNaming.NamingContextPackage.InvalidName {
// Name valid?
if ((sn == null) || (sn.length() == 0)) {
throw new InvalidName();
}
NamingContextDataStore impl = (NamingContextDataStore) this;
org.omg.CosNaming.NameComponent[] theNameComponents = insImpl.convertToNameComponent(sn);
if ((theNameComponents == null) || (theNameComponents.length == 0)) {
throw new InvalidName();
}
for (int i = 0; i < theNameComponents.length; i++) {
// If there is a name component whose id and kind null or
// zero length string, then an invalid name exception needs to be
// raised.
if (((theNameComponents[i].id == null) || (theNameComponents[i].id.length() == 0))
&& ((theNameComponents[i].kind == null) || (theNameComponents[i].kind.length() == 0))) {
throw new InvalidName();
}
}
return theNameComponents;
}
/**
* This operation creates a URL based "iiopname://" format name from the Stringified Name of the
* object.
*
* @param addr internet based address of the host machine where Name Service is running
* <p>
* @param sn Stringified Name of the object
* <p>
* @exception org.omg.CosNaming.NamingContextExtPackage.InvalidName Indicates the name does not
* identify a binding.
* <p>
* @exception org.omg.CosNaming.NamingContextPackage.InvalidAddress Indicates the internet based
* address of the host machine is incorrect
* <p>
*/
public String to_url(String addr, String sn)
throws org.omg.CosNaming.NamingContextExtPackage.InvalidAddress,
org.omg.CosNaming.NamingContextPackage.InvalidName {
// Name valid?
if ((sn == null) || (sn.length() == 0)) {
throw new InvalidName();
}
if (addr == null) {
throw new org.omg.CosNaming.NamingContextExtPackage.InvalidAddress();
}
NamingContextDataStore impl = (NamingContextDataStore) this;
String urlBasedAddress = null;
urlBasedAddress = insImpl.createURLBasedAddress(addr, sn);
// Extra check to see that corba name url created is valid as per
// INS spec grammer.
try {
INSURLHandler.getINSURLHandler().parseURL(urlBasedAddress);
} catch (BAD_PARAM e) {
throw new org.omg.CosNaming.NamingContextExtPackage.InvalidAddress();
}
return urlBasedAddress;
}
/**
* This operation resolves the Stringified name into the object reference.
*
* @param sn Stringified Name of the object
* <p>
* @exception org.omg.CosNaming.NamingContextPackage.NotFound Indicates there is no object
* reference for the given name.
* <p>
* @exception org.omg.CosNaming.NamingContextPackage.CannotProceed Indicates that the given
* compound name is incorrect
* <p>
* @exception org.omg.CosNaming.NamingContextExtPackage.InvalidName Indicates the name does not
* identify a binding.
* <p>
* @exception org.omg.CosNaming.NamingContextPackage.AlreadyBound Indicates the name is already
* bound.
* <p>
*/
public org.omg.CORBA.Object resolve_str(String sn)
throws org.omg.CosNaming.NamingContextPackage.NotFound,
org.omg.CosNaming.NamingContextPackage.CannotProceed,
org.omg.CosNaming.NamingContextPackage.InvalidName {
org.omg.CORBA.Object theObject = null;
// Name valid?
if ((sn == null) || (sn.length() == 0)) {
throw new InvalidName();
}
NamingContextDataStore impl = (NamingContextDataStore) this;
org.omg.CosNaming.NameComponent[] theNameComponents = insImpl.convertToNameComponent(sn);
if ((theNameComponents == null) || (theNameComponents.length == 0)) {
throw new InvalidName();
}
theObject = resolve(theNameComponents);
return theObject;
}
protected transient ORB orb;
public static String nameToString(NameComponent[] name) {
StringBuffer s = new StringBuffer("{");
if (name != null || name.length > 0) {
for (int i = 0; i < name.length; i++) {
if (i > 0) s.append(",");
s.append("[").append(name[i].id).append(",").append(name[i].kind).append("]");
}
}
s.append("}");
return s.toString();
}
// Debugging aids.
public static final boolean debug = false;
private static void dprint(String msg) {
NamingUtils.dprint(
"NamingContextImpl("
+ Thread.currentThread().getName()
+ " at "
+ System.currentTimeMillis()
+ " ems): "
+ msg);
}
}