from pynetdicom import AE

ae = AE(ae_title=b'MY_ECHO_SCU')
# Verification SOP Class has a UID of 1.2.840.10008.1.1
#   we can use the UID str directly when adding the requested
#   presentation context
ae.add_requested_context('1.2.840.10008.1.1')

# Associate with a peer AE
assoc = ae.associate(addr, port)

if assoc.is_established:
    # Send a DIMSE C-ECHO request to the peer
    status = assoc.send_c_echo()

    # Print the response from the peer
    if status:
        print('C-ECHO Response: 0x{0:04x}'.format(status.Status))

    # Release the association
    assoc.release()

from pynetdicom import AE, VerificationPresentationContexts

ae = AE(ae_title=b'MY_ECHO_SCP')
# Or we can use the inbuilt VerificationPresentationContexts list,
#   there's one for each of the supported Service Classes
# In this case, we are supporting any requests to use Verification SOP
#   Class in the association
ae.supported_contexts = VerificationPresentationContexts

# Start the SCP on (host, port) in blocking mode
ae.start_server(('', 11112), block=True)

import logging

from pynetdicom import AE, evt, debug_logger
from pynetdicom.sop_class import VerificationSOPClass

# Setup logging to use the StreamHandler at the debug level
debug_logger()

ae = AE(ae_title=b'MY_ECHO_SCP')
ae.add_supported_contexts(VerificationSOPClass)

# Implement the EVT_C_ECHO handler
def handle_echo(event, logger):
    """Handle a C-ECHO service request.

    Parameters
    ----------
    event : evt.Event
        The C-ECHO service request event, this parameter is always
        present.
    logger : logging.Logger
        The logger to use, this parameter is only present because we
        bound ``evt.EVT_C_ECHO`` using a 3-tuple.

    Returns
    -------
    int or pydicom.dataset.Dataset
        The status returned to the peer AE in the C-ECHO response.
        Must be a valid C-ECHO status value as either an ``int`` or a
        ``Dataset`` object containing an (0000,0900) *Status* element.
    """
    # Every *Event* includes `assoc` and `timestamp` attributes
    #   which are the *Association* instance the event occurred in
    #   and the *datetime.datetime* the event occurred at
    requestor = event.assoc.requestor
    timestamp = event.timestamp.strftime("%Y-%m-%d %H:%M:%S")
    msg = (
        "Received C-ECHO service request from ({}, {}) at {}"
        .format(requestor.address, requestor.port, timestamp)
    )
    logger.info(msg)

    # Return a *Success* status
    return 0x0000

# By binding using a 3-tuple we can pass extra arguments to
#   the handler
handlers = [(evt.EVT_C_ECHO, handle_echo, [logging.getLogger('pynetdicom')])]

# Start the SCP in non-blocking mode
scp = ae.start_server(('', 11112), block=False, evt_handlers=handlers)

# Associate and send a C-ECHO request to our own Verification SCP
ae.add_requested_context(VerificationSOPClass)
assoc = ae.associate('localhost', 11112)
if assoc.is_established:
    status = assoc.send_c_echo()
    assoc.release()

# Shutdown the SCP
scp.shutdown()

from pydicom import dcmread
from pydicom.uid import ImplicitVRLittleEndian

from pynetdicom import AE, VerificationPresentationContexts
from pynetdicom.sop_class import CTImageStorage, MRImageStorage

ae = AE(ae_title=b'MY_STORAGE_SCU')
# We can also do the same thing with the requested contexts
ae.requested_contexts = VerificationPresentationContexts
# Or we can use inbuilt objects like CTImageStorage.
# The requested presentation context's transfer syntaxes can also
#   be specified using a str/UID or list of str/UIDs
ae.add_requested_context(CTImageStorage,
                         transfer_syntax=ImplicitVRLittleEndian)
# Adding a presentation context with multiple transfer syntaxes
ae.add_requested_context(MRImageStorage,
                         transfer_syntax=[ImplicitVRLittleEndian,
                                          '1.2.840.10008.1.2.1'])

assoc = ae.associate(addr, port)
if assoc.is_established:
    dataset = dcmread('file-in.dcm')
    # `status` is the response from the peer to the store request
    # but may be an empty pydicom Dataset if the peer timed out or
    # sent an invalid dataset.
    status = assoc.send_c_store(dataset)

    assoc.release()