package demo.dynany;
import java.io.*;
import org.omg.CORBA.Any;
import org.omg.CORBA.TypeCode;
import org.omg.CORBA.TCKind;
import org.omg.DynamicAny.*;
import org.omg.CosNaming.*;
public class Client
{
public static AnyServer s = null;
public static void main( String[] args )
{
try
{
org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init(args, null);
DynAnyFactory dynFactory =
DynAnyFactoryHelper.narrow(
orb.resolve_initial_references("DynAnyFactory"));
NamingContextExt nc =
NamingContextExtHelper.narrow(
orb.resolve_initial_references("NameService"));
AnyServer s =
AnyServerHelper.narrow(
nc.resolve(nc.to_name("DynAnyServer.example")));
// char
DynAny dyn_any =
dynFactory.create_dyn_any_from_type_code(
orb.get_primitive_tc( TCKind.tk_char ));
dyn_any.insert_char( 'c' );
System.out.println("Passing a char..." +
s.generic( dyn_any.to_any() ));
// enum
TypeCode enum_tc =
orb.create_enum_tc("IDL:colors:1.0","colors",
new String[]{"red",
"green",
"blue",
"mauve",
"magenta",
"salmon"});
DynEnum dyn_enum =
(DynEnum)dynFactory.create_dyn_any_from_type_code( enum_tc );
dyn_enum.set_as_string("salmon");
System.out.println("Passing an enum value..." +
s.generic( dyn_enum.to_any() ) );
// sequence
TypeCode seq_tc =
orb.create_sequence_tc( 2, orb.create_string_tc(0));
DynSequence dyn_seq =
(DynSequence)dynFactory.create_dyn_any_from_type_code( seq_tc );
Any [] string_sequence = new Any[2];
string_sequence[0] = orb.create_any();
string_sequence[1] = orb.create_any();
string_sequence[0].insert_string("hello");
string_sequence[1].insert_string("world");
dyn_seq.set_elements( string_sequence );
System.out.println("Passing a sequence of length " +
dyn_seq.component_count() + "..." +
s.generic( dyn_seq.to_any() ) );
dyn_seq.destroy();
// test the primitive get/set operations for DynSequences
seq_tc =
orb.create_sequence_tc( 1, orb.get_primitive_tc(org.omg.CORBA.TCKind.tk_boolean));
dyn_seq = (DynSequence)dynFactory.create_dyn_any_from_type_code( seq_tc );
dyn_seq.set_length( 1 );
dyn_seq.insert_boolean( true );
dyn_seq.destroy();
// array
TypeCode array_tc =
orb.create_array_tc( 3, orb.create_string_tc(0));
DynArray dyn_array =
(DynArray)dynFactory.create_dyn_any_from_type_code( array_tc );
string_sequence = new Any[3];
string_sequence[0] = orb.create_any();
string_sequence[1] = orb.create_any();
string_sequence[2] = orb.create_any();
string_sequence[0].insert_string("hello");
string_sequence[1].insert_string("another");
string_sequence[2].insert_string("world");
dyn_array.set_elements( string_sequence );
System.out.println("Passing an array of length " +
dyn_array.component_count() +
"..." + s.generic( dyn_array.to_any() ) );
dyn_array.destroy();
// struct
/*
* the hardest part is coming up with a correct call to
* create the struct's TypeCode, which is normally
* statically generated into the helper class
*/
TypeCode struct_tc =
orb.create_struct_tc(
"IDL:Node:1.0",
"Node",
new org.omg.CORBA.StructMember[]
{
new org.omg.CORBA.StructMember( "first",
org.omg.CORBA.ORB.init().create_string_tc(0),
null ),
new org.omg.CORBA.StructMember( "second",
org.omg.CORBA.ORB.init().create_sequence_tc(
0,
org.omg.CORBA.ORB.init().create_recursive_tc("IDL:Node:1.0")
),
null)
}
);
DynStruct dyn_struct =
(DynStruct)dynFactory.create_dyn_any_from_type_code(
struct_tc );
// Create a list of name value pairs that holds the struct members.
// This struct has two members, so we have 2 array elements
// the first struct member is a string,
// the member name is "first"
NameValuePair[] nvp_seq = new NameValuePair[2];
Any first_member_any = orb.create_any();
first_member_any.insert_string("first");
nvp_seq[0] = new NameValuePair("first", first_member_any );
/*
the second member is a recursive sequence, ie. the element
type of the sequence is that of the enclosing struct, the
member name is "second". We'll leave that sequence empty,
but we have to provide an initialized any for the empty
sequence, so we create a DynAny that initializes an any
as an empty sequence
*/
DynSequence second_member =
(DynSequence)dynFactory.create_dyn_any_from_type_code(
struct_tc.member_type(1) );
nvp_seq[1] =
new NameValuePair("second", second_member.to_any() );
// insert the nvp list into the DynStruct
dyn_struct.set_members( nvp_seq );
System.out.println("Passing a struct..." +
s.generic( dyn_struct.to_any() ) );
// test the primitive get/set operations for DynStruct
dyn_struct.seek(0);
dyn_struct.insert_string( "newly inserted" );
System.out.println("Passing the struct again..." +
s.generic( dyn_struct.to_any() ) );
dyn_struct.destroy();
second_member.destroy();
/* union */
// setting up TypeCodes gets even more complicated,
// but you asked for it...
org.omg.CORBA.UnionMember[] members =
new org.omg.CORBA.UnionMember[3];
org.omg.CORBA.Any label_any;
label_any = orb.create_any();
label_any.insert_octet((byte)0); // 0 byte means default case
members[0] =
new org.omg.CORBA.UnionMember("s",
label_any,
org.omg.CORBA.ORB.init().get_primitive_tc(org.omg.CORBA.TCKind.from_int(2)),
null);
label_any = org.omg.CORBA.ORB.init().create_any();
label_any.insert_char('l');
members[1] =
new org.omg.CORBA.UnionMember("l",
label_any,
org.omg.CORBA.ORB.init().get_primitive_tc(org.omg.CORBA.TCKind.from_int(3)),
null);
label_any = org.omg.CORBA.ORB.init().create_any();
label_any.insert_char('f');
members[2] =
new org.omg.CORBA.UnionMember("f",
label_any,
org.omg.CORBA.ORB.init().get_primitive_tc(org.omg.CORBA.TCKind.from_int(6)),
null);
TypeCode union_tc =
org.omg.CORBA.ORB.init().create_union_tc("IDL:Nums:1.0",
"Nums",
org.omg.CORBA.ORB.init().get_primitive_tc(org.omg.CORBA.TCKind.from_int(9)),
members );
DynUnion dyn_union =
(DynUnion)dynFactory.create_dyn_any_from_type_code( union_tc );
Any discriminator_any = orb.create_any();
discriminator_any.insert_char('l');
DynAny discriminator = dynFactory.create_dyn_any(discriminator_any);
//dyn_enum.set_as_string("salmon");
// DynAny discriminator = dyn_enum;
dyn_union.set_discriminator( discriminator );
dyn_union.member().insert_long(4711);
System.out.println("Passing a union..." +
s.generic( dyn_union.to_any()));
// setting a different union value
dyn_union.set_to_default_member();
dyn_union.member().insert_short((short)19);
System.out.println("Passing the union again..." +
s.generic( dyn_union.to_any()));
}
catch ( Exception e)
{
e.printStackTrace();
}
}
}