* 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. *
* 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
* @exception org.omg.CosNaming.NamingContextExtPackage.InvalidName * Indicates the name does not identify a binding.
* */ 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
* @exception org.omg.CosNaming.NamingContextExtPackage.InvalidName * Indicates the name does not identify a binding.
* */ 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
* @param sn Stringified Name of the object
* @exception org.omg.CosNaming.NamingContextExtPackage.InvalidName * Indicates the name does not identify a binding.
* @exception org.omg.CosNaming.NamingContextPackage.InvalidAddress * Indicates the internet based address of the host machine is * incorrect
* */ 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
* @exception org.omg.CosNaming.NamingContextPackage.NotFound * Indicates there is no object reference for the given name.
* @exception org.omg.CosNaming.NamingContextPackage.CannotProceed * Indicates that the given compound name is incorrect
* @exception org.omg.CosNaming.NamingContextExtPackage.InvalidName * Indicates the name does not identify a binding.
* @exception org.omg.CosNaming.NamingContextPackage.AlreadyBound * Indicates the name is already bound.
*
*/
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;
}
transient protected ORB orb;
public static String nameToString(NameComponent[] name)
{
StringBuffer s = new StringBuffer("{");
if (name != null || name.length > 0) {
for (int i=0;i