com.highqsoft.corbafileserver.generated

Class _InputStreamIFStub

java.lang.Object

org.omg.CORBA.portable.ObjectImpl

com.highqsoft.corbafileserver.generated._InputStreamIFStub

All Implemented Interfaces:

InputStreamIF, InputStreamIFOperations, java.io.Serializable, org.omg.CORBA.Object, org.omg.CORBA.portable.IDLEntity

public class _InputStreamIFStub
extends org.omg.CORBA.portable.ObjectImpl
implements InputStreamIF

The InputStreamIF is used to simulate the behavior of a Java InputStream over CORBA. The interface provides a method to read a certain amount of bytes from the InputStreamIF. The interface provides methods to get information about the stream as well as close it.
Closing the stream is very important! The method must clean all server-side resource. This includes the stream itself if it is kept in the POA's active object map.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
_InputStreamIFStub()

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String[]	_ids()
void	close() Close the input stream.
int	length() Get the length of the input stream.
int	read(DS_BYTEHolder b, int off, int len) Reads up to len bytes of data from the input stream into an array of bytes.
void	reset() Reset the stream

Methods inherited from class org.omg.CORBA.portable.ObjectImpl

_create_request, _create_request, _duplicate, _get_delegate, _get_domain_managers, _get_interface_def, _get_policy, _hash, _invoke, _is_a, _is_equivalent, _is_local, _non_existent, _orb, _release, _releaseReply, _request, _request, _servant_postinvoke, _servant_preinvoke, _set_delegate, _set_policy_override, equals, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.omg.CORBA.Object

_create_request, _create_request, _duplicate, _get_domain_managers, _get_interface_def, _get_policy, _hash, _is_a, _is_equivalent, _non_existent, _release, _request, _set_policy_override

Constructor Detail

_InputStreamIFStub

public _InputStreamIFStub()

Method Detail

read

public int read(DS_BYTEHolder b,
       int off,
       int len)
         throws CORBAFileServerException

Reads up to len bytes of data from the input stream into an array of bytes. An attempt is made to read as many as len bytes, but a smaller number may be read, possibly zero. The number of bytes actually read is returned as an integer. This method blocks until input data is available, end of file is detected, or an exception is thrown. If b is null, a NullPointerException is thrown. If off is negative, or len is negative, or off+len is greater than the length of the array b, then an IndexOutOfBoundsException is thrown. If len is zero, then no bytes are read and 0 is returned; otherwise, there is an attempt to read at least one byte. If no byte is available because the stream is at end of file, the value -1 is returned; otherwise, at least one byte is read and stored into b. The first byte read is stored into element b[off], the next one into b[off+1], and so on. The number of bytes read is, at most, equal to len. Let k be the number of bytes actually read; these bytes will be stored in elements b[off] through b[off+k-1], leaving elements b[off+k] through b[off+len-1] unaffected. In every case, elements b[0] through b[off] and elements b[off+len] through b[b.length-1] are unaffected. If the first byte cannot be read for any reason other than end of file, then an IOException is thrown. In particular, an IOException is thrown if the input stream has been closed. The read(b, off, len) method for class InputStream simply calls the method read() repeatedly. If the first such call results in an IOException, that exception is returned from the call to the read(b, off, len) method. If any subsequent call to read() results in a IOException, the exception is caught and treated as if it were end of file; the bytes read up to that point are stored into b and the number of bytes read before the exception occurred is returned. Subclasses are encouraged to provide a more efficient implementation of this method.

Specified by:

read in interface InputStreamIFOperations

Parameters:

b - - the buffer into which the data is read.

off - - the start offset in array b at which the data is written.

len - - the maximum number of bytes to read.

Returns:

the total number of bytes read into the buffer, or -1 is there is no more data because the end of the stream has been reached.

Throws:

CORBAFileServerException - if an IO exception occurs.

close

public void close()
           throws CORBAFileServerException

Close the input stream. This method also can remove the object from the server's active object map. After this method is called, any other invocation to a method of its object WILL lead to a CORBAException!

Specified by:

close in interface InputStreamIFOperations

Throws:

CORBAFileServerException - if an IO exception occurs.

length

public int length()
           throws CORBAFileServerException

Get the length of the input stream.

Specified by:

length in interface InputStreamIFOperations

Returns:

the length of the file to be transferd.

Throws:

CORBAFileServerException - if an IO exception occurs.

reset

public void reset()
           throws CORBAFileServerException

Reset the stream

Specified by:

reset in interface InputStreamIFOperations

Throws:

CORBAFileServerException - if an IO exception occurs.

_ids

public java.lang.String[] _ids()

Specified by:

_ids in class org.omg.CORBA.portable.ObjectImpl