Java NamingContextDataStore.Resolve方法代码示例

import com.sun.corba.se.impl.naming.cosnaming.NamingContextDataStore; //导入方法依赖的package包/类
/**
* 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;
 }
 

import com.sun.corba.se.impl.naming.cosnaming.NamingContextDataStore; //导入方法依赖的package包/类
/**
* 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 org.omg.CosNaming.NamingContextPackage.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 org.omg.CosNaming.NamingContextPackage.NotFound(NotFoundReason.missing_node,n);
         }
         return obj;
     } else {
         // n.length > 1
         if ( (n[1].id.length() == 0) && (n[1].kind.length() == 0 ) )
             throw new org.omg.CosNaming.NamingContextPackage.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
         return context.resolve(tail);
     }
 }
 

import com.sun.corba.se.impl.naming.cosnaming.NamingContextDataStore; //导入方法依赖的package包/类
/**
* 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 org.omg.CosNaming.NamingContextPackage.NotFound(NotFoundReason.missing_node,n);
         }
     }

     // Was it bound as a context?
     if (bth.value != BindingType.ncontext) {
         // It was not a context
         throw new org.omg.CosNaming.NamingContextPackage.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 org.omg.CosNaming.NamingContextPackage.NotFound(NotFoundReason.not_context,n);
     }

     // Hmm. must be ok
     return context;
 }
 

import com.sun.corba.se.impl.naming.cosnaming.NamingContextDataStore; //导入方法依赖的package包/类
/**
* 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);
         }
     }
 }