Python SIO_HEADER_MATCHER.match方法代码示例

# 需要导入模块: from mi.dataset.parser.sio_mule_common import SIO_HEADER_MATCHER [as 别名]
# 或者: from mi.dataset.parser.sio_mule_common.SIO_HEADER_MATCHER import match [as 别名]
    def parse_chunks(self):
        """
        Parse chunks for the Recovered CO and CT parser.
        Parse out any pending data chunks in the chunker. If
        it is a valid data piece, build a particle, update the position and
        timestamp. Go until the chunker has no more valid data.
        @retval a list of tuples with sample particles encountered in this
            parsing, plus the state. An empty list of nothing was parsed.
        """
        result_particles = []
        (nd_timestamp, non_data, non_start, non_end) = self._chunker.get_next_non_data_with_index(clean=False)
        (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index()
        self.handle_non_data(non_data, non_end, start)

        while chunk is not None:
            header_match = SIO_HEADER_MATCHER.match(chunk)
            header_timestamp = header_match.group(SIO_HEADER_GROUP_TIMESTAMP)

            #
            # Start processing at the end of the header.
            #
            chunk_idx = header_match.end(0)

            if header_match.group(SIO_HEADER_GROUP_ID) == ID_OFFSET:
                (particles, had_error) = parse_co_data(CtdmoGhqrSioRecoveredOffsetDataParticle,
                                                       chunk[chunk_idx:-1], header_timestamp,
                                                       self._extract_sample)

                if had_error[0]:
                    log.error('unknown data found in CO chunk %s at %d, leaving out the rest',
                              binascii.b2a_hex(chunk), had_error[1])
                    self._exception_callback(SampleException(
                        'unknown data found in CO chunk at %d, leaving out the rest' % had_error[1]))

                result_particles.extend(particles)

            if header_match.group(SIO_HEADER_GROUP_ID) == ID_INSTRUMENT:
                header_str = header_match.group(0)
                inductive_id = header_str[8:10]
                (particles, had_error) = parse_ct_data(CtdmoGhqrRecoveredHostInstrumentDataParticle,
                                                       chunk[chunk_idx:-1], header_timestamp,
                                                       self._extract_sample, inductive_id)

                if had_error[0]:
                    log.error('unknown data found in CT chunk %s at %d, leaving out the rest',
                              binascii.b2a_hex(chunk), had_error[1])
                    self._exception_callback(SampleException(
                        'unknown data found in CT chunk at %d, leaving out the rest' % had_error[1]))

                result_particles.extend(particles)

            (nd_timestamp, non_data, non_start, non_end) = self._chunker.get_next_non_data_with_index(clean=False)
            (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index()
            self.handle_non_data(non_data, non_end, start)

        return result_particles

# 需要导入模块: from mi.dataset.parser.sio_mule_common import SIO_HEADER_MATCHER [as 别名]
# 或者: from mi.dataset.parser.sio_mule_common.SIO_HEADER_MATCHER import match [as 别名]
    def parse_chunks(self):
        """
        Parse out any pending data chunks in the chunker. If
        it is a valid data piece, build a particle, update the position and
        timestamp. Go until the chunker has no more valid data.
        @retval a list of tuples with sample particles encountered in this
            parsing, plus the state. An empty list of nothing was parsed.
        """
        result_particles = []
        (nd_timestamp, non_data, non_start,
         non_end) = self._chunker.get_next_non_data_with_index(clean=False)
        (timestamp, chunk, start,
         end) = self._chunker.get_next_data_with_index()

        while (chunk != None):
            header_match = SIO_HEADER_MATCHER.match(chunk)
            sample_count = 0
            log.debug('parsing header %s', header_match.group(0)[1:32])
            if header_match.group(1) == 'DO':

                data_match = DATA_MATCHER.search(chunk)
                if data_match:
                    log.debug('Found data match in chunk %s', chunk[1:32])

                    if not self._read_state.get(StateKey.METADATA_SENT):
                        # create the metadata particle
                        # prepend the timestamp from sio mule header to the dosta raw data,
                        # which is stored in header_match.group(3)
                        metadata_sample = self._extract_sample(
                            DostadMetadataDataParticle, None,
                            header_match.group(3) + data_match.group(0), None)
                        if metadata_sample:
                            result_particles.append(metadata_sample)
                            sample_count += 1
                            self._read_state[StateKey.METADATA_SENT] = True

                    # create the dosta data particle
                    # prepend the timestamp from sio mule header to the dosta raw data,
                    # which is stored in header_match.group(3)
                    sample = self._extract_sample(
                        DostadParserDataParticle, None,
                        header_match.group(3) + data_match.group(0), None)
                    if sample:
                        # create particle
                        result_particles.append(sample)
                        sample_count += 1

            self._chunk_sample_count.append(sample_count)

            (nd_timestamp, non_data, non_start,
             non_end) = self._chunker.get_next_non_data_with_index(clean=False)
            (timestamp, chunk, start,
             end) = self._chunker.get_next_data_with_index()

        return result_particles

# 需要导入模块: from mi.dataset.parser.sio_mule_common import SIO_HEADER_MATCHER [as 别名]
# 或者: from mi.dataset.parser.sio_mule_common.SIO_HEADER_MATCHER import match [as 别名]
    def parse_chunks(self):
        """
        Parse out any pending data chunks in the chunker. If
        it is a valid data piece, build a particle, update the position and
        timestamp. Go until the chunker has no more valid data.
        @retval a list of tuples with sample particles encountered in this
        parsing, plus the state. An empty list of nothing was parsed.
        """

        result_particles = []
        (timestamp, chunk) = self._chunker.get_next_data()
        
        while (chunk != None):   
            # Parse/match the SIO header
            sio_header_match = SIO_HEADER_MATCHER.match(chunk)
	    end_of_header = sio_header_match.end(0) 
                
            sample_count = 0       
            if sio_header_match.group(1) == 'WE':
                log.trace('read_state: %s', self._read_state)
                        
                # Parse/match the E file header     
		e_header_match = E_HEADER_MATCHER.search(chunk[end_of_header:end_of_header+HEADER_BYTES])
                
                if e_header_match:
		    payload = chunk[end_of_header+HEADER_BYTES:-1] # '-1' to remove the '\x03' end-of-record marker
		    data_split = self.we_split_function(payload)
                    if data_split:
			for ii in range(0,len(data_split)):    
			    e_record = payload[data_split[ii][0]:data_split[ii][1]]
			    
                            if not STATUS_START_MATCHER.match(e_record[0:STATUS_BYTES]):				    
                                fields = struct.unpack('>I', e_record[0:4])
                                self._timestamp = ntplib.system_to_ntp_time(float(fields[0]))
			    
                                if len(e_record) == E_GLOBAL_SAMPLE_BYTES:
                                    sample = self._extract_sample(FlordLWfpParserDataParticle,
			                                      None,
			                                      e_record,
			                                      self._timestamp)
				    if sample:
					# create particle
					result_particles.append(sample)
					sample_count += 1
				else:
				    self._exception_callback(UnexpectedDataException("Found unexpected data."))
                                    
                else: # no e header match
                    self._exception_callback(UnexpectedDataException("Found unexpected data."))

            self._chunk_sample_count.append(sample_count)    
            (timestamp, chunk) = self._chunker.get_next_data()

        return result_particles

# 需要导入模块: from mi.dataset.parser.sio_mule_common import SIO_HEADER_MATCHER [as 别名]
# 或者: from mi.dataset.parser.sio_mule_common.SIO_HEADER_MATCHER import match [as 别名]
    def parse_chunks(self):
        """
        Parse out any pending data chunks in the chunker. If
        it is a valid data piece, build a particle, update the position and
        timestamp. Go until the chunker has no more valid data.
        @retval a list of tuples with sample particles encountered in this
            parsing, plus the state. An empty list of nothing was parsed.
        """
        result_particles = []
        (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index(clean=True)

        while chunk is not None:
            #
            # Verify that the Instrument ID is the one that we want.
            #
            header = SIO_HEADER_MATCHER.match(chunk)
            if header.group(SIO_HEADER_GROUP_ID) == ID_VEL3D_L_WFP_SIO_MULE:
                #
                # Extract the POSIX timestamp from the SIO Header.
                #
                sio_timestamp = int(header.group(SIO_HEADER_GROUP_TIMESTAMP), 16)

                #
                # Process the remaining Vel3d data, starting from the end of the
                # SIO Header, but not including the trailing 0x03.
                #
                fields = self.parse_vel3d_data(PARTICLE_TYPE_SIO_INSTRUMENT,
                    PARTICLE_TYPE_SIO_METADATA,
                    chunk[header.end(0) : -1],
                    time_stamp=sio_timestamp)

                #
                # Generate the particles for this SIO block.
                # Add them to the return list of particles.
                #
                (samples, particles) = self.generate_samples(fields)
                for x in range(0, samples):
                    result_particles.append(particles[x])

            #
            # Not our instrument, but still must indicate that no samples were found.
            #
            else:
                samples = 0

            # keep track of how many samples were found in this chunk
            self._chunk_sample_count.append(samples)

            (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index(clean=True)

        return result_particles

# 需要导入模块: from mi.dataset.parser.sio_mule_common import SIO_HEADER_MATCHER [as 别名]
# 或者: from mi.dataset.parser.sio_mule_common.SIO_HEADER_MATCHER import match [as 别名]
    def parse_chunks(self):
        """
        Parse chunks for the Telemetered parser.
        Parse out any pending data chunks in the chunker. If
        it is a valid data piece, build a particle.
        Go until the chunker has no more valid data.
        @retval a list of tuples with sample particles encountered in this
            parsing, plus the state. An empty list of nothing was parsed.
        """
        result_particles = []
        (nd_timestamp, non_data, non_start, non_end) = self._chunker.get_next_non_data_with_index(clean=False)
        (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index()
        self.handle_non_data(non_data, non_end, start)

        while chunk is not None:
            header_match = SIO_HEADER_MATCHER.match(chunk)
            if header_match:
                header_timestamp = header_match.group(SIO_HEADER_GROUP_TIMESTAMP)

                # start looping at the end of the header
                chunk_idx = header_match.end(0)

                if header_match.group(SIO_HEADER_GROUP_ID) == ID_INSTRUMENT:
                    #
                    # Parse the CT record, up to but not including the end of SIO block.
                    #
                    particles = self.parse_ct_record(chunk[chunk_idx:-1], header_timestamp)
                    result_particles.extend(particles)

                elif header_match.group(SIO_HEADER_GROUP_ID) == ID_OFFSET:
                    (particles, had_error) = parse_co_data(CtdmoGhqrSioTelemeteredOffsetDataParticle,
                                                           chunk[chunk_idx:-1], header_timestamp,
                                                           self._extract_sample)

                    if had_error[0]:
                        log.error('unknown data found in CO chunk %s at %d, leaving out the rest',
                                  binascii.b2a_hex(chunk), had_error[1])
                        self._exception_callback(SampleException(
                            'unknown data found in CO chunk at %d, leaving out the rest' % had_error[1]))

                    result_particles.extend(particles)
                else:
                    message = 'Unexpected Sio Header ID %s' % header_match.group(SIO_HEADER_GROUP_ID)
                    log.warn(message)
                    self._exception_callback(UnexpectedDataException(message))

            (nd_timestamp, non_data, non_start, non_end) = self._chunker.get_next_non_data_with_index(clean=False)
            (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index()
            self.handle_non_data(non_data, non_end, start)

        return result_particles

# 需要导入模块: from mi.dataset.parser.sio_mule_common import SIO_HEADER_MATCHER [as 别名]
# 或者: from mi.dataset.parser.sio_mule_common.SIO_HEADER_MATCHER import match [as 别名]
    def parse_chunks(self):
        """
        Parse out any pending data chunks in the chunker. If
        it is a valid data piece, build a particle, update the position and
        timestamp. Go until the chunker has no more valid data.
        @retval a list of tuples with sample particles encountered in this
            parsing, plus the state. An empty list of nothing was parsed.
        """
        result_particles = []

        (nd_timestamp, non_data, non_start, non_end) = self._chunker.get_next_non_data_with_index(clean=False)
        (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index(clean=True)

        # if there is any non data handle it
        self.handle_non_data(non_data, non_end, start)

        while chunk is not None:
            header_match = SIO_HEADER_MATCHER.match(chunk)

            if header_match.group(SIO_HEADER_GROUP_ID) == 'CS':
                data_match = ENG_MATCHER.match(chunk)
                if data_match:
                    # put timestamp from hex string to float:
                    posix_time = int(header_match.group(SIO_HEADER_GROUP_TIMESTAMP), 16)
                    log.debug('utc timestamp %s', datetime.utcfromtimestamp(posix_time))
                    timestamp = ntplib.system_to_ntp_time(float(posix_time))
                    # particle-ize the data block received, return the record
                    sample = self._extract_sample(self._particle_class, None, data_match, internal_timestamp=timestamp)
                    if sample:
                        # create particle
                        result_particles.append(sample)

                else:
                    log.warn('CS data does not match REGEX')
                    self._exception_callback(SampleException('CS data does not match REGEX'))

            # 'PS' IDs will also be in this file but are specifically ignored
            elif header_match.group(SIO_HEADER_GROUP_ID) != 'PS':
                message = 'Unexpected Sio Header ID %s' % header_match.group(SIO_HEADER_GROUP_ID)
                log.warn(message)
                self._exception_callback(UnexpectedDataException(message))

            (nd_timestamp, non_data, non_start, non_end) = self._chunker.get_next_non_data_with_index(clean=False)
            (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index(clean=True)

            # if there is any non data handle it
            self.handle_non_data(non_data, non_end, start)

        return result_particles

# 需要导入模块: from mi.dataset.parser.sio_mule_common import SIO_HEADER_MATCHER [as 别名]
# 或者: from mi.dataset.parser.sio_mule_common.SIO_HEADER_MATCHER import match [as 别名]
    def parse_chunks(self):
        """
        Parse out any pending data chunks in the chunker. If
        it is a valid data piece, build a particle, update the position and
        timestamp. Go until the chunker has no more valid data.
        @retval a list of tuples with sample particles encountered in this
            parsing, plus the state. An empty list of nothing was parsed.
        """
        result_particles = []
        (nd_timestamp, non_data, non_start, non_end) = self._chunker.get_next_non_data_with_index(clean=False)
        (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index()

        while chunk is not None:
            header_match = SIO_HEADER_MATCHER.match(chunk)

            if header_match.group(1) == "DO":

                data_match = DATA_MATCHER.search(chunk)
                if data_match:
                    log.debug("Found data match in chunk %s", chunk[1:32])

                    if not self.metadata_sent:
                        # create the metadata particle
                        # prepend the timestamp from sio mule header to the dosta raw data,
                        # which is stored in header_match.group(3)
                        metadata_sample = self._extract_sample(
                            self._metadata_particle_class, None, (header_match.group(3), data_match), None
                        )
                        if metadata_sample:
                            result_particles.append(metadata_sample)
                            self.metadata_sent = True

                    # create the dosta data particle
                    # prepend the timestamp from sio mule header to the dosta raw data ,
                    # which is stored in header_match.group(3)
                    sample = self._extract_sample(
                        self._data_particle_class, None, (header_match.group(3), data_match), None
                    )
                    if sample:
                        # create particle
                        result_particles.append(sample)

            (nd_timestamp, non_data, non_start, non_end) = self._chunker.get_next_non_data_with_index(clean=False)
            (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index()

        return result_particles

# 需要导入模块: from mi.dataset.parser.sio_mule_common import SIO_HEADER_MATCHER [as 别名]
# 或者: from mi.dataset.parser.sio_mule_common.SIO_HEADER_MATCHER import match [as 别名]
    def parse_chunks(self):
        """
        Parse chunks for the Telemetered parser.
        Parse out any pending data chunks in the chunker. If
        it is a valid data piece, build a particle.
        Go until the chunker has no more valid data.
        @retval a list of tuples with sample particles encountered in this
            parsing, plus the state. An empty list of nothing was parsed.
        """
        result_particles = []
        (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index()

        while chunk is not None:
            header_match = SIO_HEADER_MATCHER.match(chunk)
            header_timestamp = header_match.group(SIO_HEADER_GROUP_TIMESTAMP)

            # start looping at the end of the header
            chunk_idx = header_match.end(0)

            samples = 0
            if header_match.group(SIO_HEADER_GROUP_ID) == ID_INSTRUMENT:
                #
                # Parse the CT record, up to but not including the end of SIO block.
                #
                (samples, particles) = self.parse_ct_record(chunk[chunk_idx : -1],
                                                            header_timestamp)

                if samples > 0:
                    for x in range(0, samples):
                        result_particles.append(particles[x])

            elif header_match.group(SIO_HEADER_GROUP_ID) == ID_OFFSET:
                (samples, particles) = self.parse_co_data(
                    CtdmoTelemeteredOffsetDataParticle,
                    chunk[chunk_idx : -1], header_timestamp)
                
                if samples > 0:
                    for x in range(0, samples):
                        result_particles.append(particles[x])

            # keep track of how many samples were found in this chunk
            self._chunk_sample_count.append(samples)
            (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index()

        return result_particles

# 需要导入模块: from mi.dataset.parser.sio_mule_common import SIO_HEADER_MATCHER [as 别名]
# 或者: from mi.dataset.parser.sio_mule_common.SIO_HEADER_MATCHER import match [as 别名]
    def parse_chunks(self):
        """
        Parse out any pending data chunks in the chunker. If
        it is a valid data piece, build a particle, update the position and
        timestamp. Go until the chunker has no more valid data.
        @retval a list of tuples with sample particles encountered in this
        parsing, plus the state. An empty list of nothing was parsed.
        """

        (timestamp, chunk) = self._chunker.get_next_data()

        while chunk is not None:
            # Parse/match the SIO header
            sio_header_match = SIO_HEADER_MATCHER.match(chunk)
            end_of_header = sio_header_match.end(0)

            if sio_header_match.group(1) == 'WE':

                # Parse/match the E file header
                e_header_match = E_HEADER_MATCHER.search(
                    chunk[end_of_header:end_of_header+HEADER_BYTES])

                if e_header_match:

                    # '-1' to remove the '\x03' end-of-record marker
                    payload = chunk[end_of_header+HEADER_BYTES:-1]

                    self._process_we_record(payload)

                else:
                    message = "Found unexpected data."
                    log.warn(message)
                    self._exception_callback(UnexpectedDataException(
                        message))

            else:  # no e header match
                message = "Found unexpected data."
                log.warn(message)
                self._exception_callback(UnexpectedDataException(message))

            (timestamp, chunk) = self._chunker.get_next_data()

        return self._result_particles

# 需要导入模块: from mi.dataset.parser.sio_mule_common import SIO_HEADER_MATCHER [as 别名]
# 或者: from mi.dataset.parser.sio_mule_common.SIO_HEADER_MATCHER import match [as 别名]
    def parse_chunks(self):
        """
        Parse out any pending data chunks in the chunker. If
        it is a valid data piece, build a particle, update the position and
        timestamp. Go until the chunker has no more valid data.
        @retval a list of tuples with sample particles encountered in this
            parsing, plus the state. An empty list of nothing was parsed.
        """
        result_particles = []
        (nd_timestamp, non_data, non_start, non_end) = self._chunker.get_next_non_data_with_index(clean=False)
        (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index()
        self.handle_non_data(non_data, non_end, start)

        while chunk is not None:
            header_match = SIO_HEADER_MATCHER.match(chunk)
            if header_match.group(1) == 'FL':
                data_match = DATA_MATCHER.search(chunk)
                if data_match:
                    log.debug('Found data match in chunk %s', chunk[1:32])

                    # particle-ize the data block received, return the record
                    # prepend the timestamp from sio mule header to the flort raw data,
                    # which is stored in header_match.group(3)
                    sample = self._extract_sample(self._particle_class, None,
                                                  header_match.group(3) + data_match.group(0),
                                                  None)
                    if sample:
                        # create particle
                        result_particles.append(sample)
            else:
                # We found a line in the file that was unexpected. Since we are continuing,
                # just log a warning.
                warn_str = "Unexpected data in beginning of header: "
                log.warn(warn_str + "%s", header_match.group(1))
                message = warn_str + header_match.group(1)
                self._exception_callback(UnexpectedDataException(message))

            (nd_timestamp, non_data, non_start, non_end) = self._chunker.get_next_non_data_with_index(clean=False)
            (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index()
            self.handle_non_data(non_data, non_end, start)

        return result_particles

# 需要导入模块: from mi.dataset.parser.sio_mule_common import SIO_HEADER_MATCHER [as 别名]
# 或者: from mi.dataset.parser.sio_mule_common.SIO_HEADER_MATCHER import match [as 别名]
    def parse_chunks(self):
        """
        Parse out any pending data chunks in the chunker. If
        it is a valid data piece, build a particle, update the position and
        timestamp. Go until the chunker has no more valid data.
        @retval a list of tuples with sample particles encountered in this
            parsing, plus the state. An empty list of nothing was parsed.
        """            
        result_particles = []
        (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index(clean=True)
        

        
        while (chunk != None):
            header_match = SIO_HEADER_MATCHER.match(chunk)
            sample_count = 0
            log.debug('parsing header %s', header_match.group(0)[1:32])
            if header_match.group(1) == 'CS':
                log.debug('\n\nCS Header detected:::  %s\n\n', header_match.group(0)[1:32])
                data_match = ENG_MATCHER.match(chunk)
                if data_match:
                    # put timestamp from hex string to float:
                    posix_time = int(header_match.group(3), 16)
                    log.debug('utc timestamp %s', datetime.utcfromtimestamp(posix_time))
                    self._timestamp = ntplib.system_to_ntp_time(float(posix_time))
                    # particle-ize the data block received, return the record
                    sample = self._extract_sample(self._particle_class, ENG_MATCHER, chunk, self._timestamp)
                    if sample:
                        # create particle
                        result_particles.append(sample)
                        sample_count +=1
                else:
                    log.warn('CS data does not match REGEX')
                    self._exception_callback(SampleException('CS data does not match REGEX'))
                    
            self._chunk_sample_count.append(sample_count)
            
            (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index(clean=True)

        return result_particles

# 需要导入模块: from mi.dataset.parser.sio_mule_common import SIO_HEADER_MATCHER [as 别名]
# 或者: from mi.dataset.parser.sio_mule_common.SIO_HEADER_MATCHER import match [as 别名]
    def parse_chunks(self):
        """
        Parse out any pending data chunks in the chunker. If
        it is a valid data piece, build a particle, update the position and
        timestamp. Go until the chunker has no more valid data.
        @retval a list of tuples with sample particles encountered in this
            parsing, plus the state. An empty list of nothing was parsed.
        """
        result_particles = []
        (nd_timestamp, non_data, non_start, non_end) = self._chunker.get_next_non_data_with_index(clean=False)
        (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index()

        sample_count = 0

        while (chunk != None):
            header_match = SIO_HEADER_MATCHER.match(chunk)
            sample_count = 0
            log.debug('parsing header %s', header_match.group(0)[1:32])
            if header_match.group(1) == 'DO':

                data_match = DATA_MATCHER.search(chunk)
                if data_match:
                    log.debug('Found data match in chunk %s', chunk[1:32])

                    # particle-ize the data block received, return the record
                    sample = self._extract_sample(DostadParserDataParticle, None,
                                                  header_match.group(3) + data_match.group(0),
                                                  None)
                    if sample:
                        # create particle
                        result_particles.append(sample)
                        sample_count += 1

            self._chunk_sample_count.append(sample_count)

            (nd_timestamp, non_data, non_start, non_end) = self._chunker.get_next_non_data_with_index(clean=False)
            (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index()

        return result_particles

# 需要导入模块: from mi.dataset.parser.sio_mule_common import SIO_HEADER_MATCHER [as 别名]
# 或者: from mi.dataset.parser.sio_mule_common.SIO_HEADER_MATCHER import match [as 别名]
    def parse_chunks(self):
        """
        Parse out any pending data chunks in the chunker. If
        it is a valid data piece, build a particle, update the position and
        timestamp. Go until the chunker has no more valid data.
        @retval a list of tuples with sample particles encountered in this
            parsing, plus the state. An empty list of nothing was parsed.
        """
        (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index(clean=True)

        while chunk is not None:

            header_match = SIO_HEADER_MATCHER.match(chunk)

            # Check to see if we are dealing with a wfp_eng SIO chunk
            if header_match.group(1) == 'WE':

                self._current_controller_timestamp = header_match.group(3)

                self._process_wfp_eng_chunk(chunk[len(header_match.group(0)):])

            (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index()

        return self._result_particles

# 需要导入模块: from mi.dataset.parser.sio_mule_common import SIO_HEADER_MATCHER [as 别名]
# 或者: from mi.dataset.parser.sio_mule_common.SIO_HEADER_MATCHER import match [as 别名]
    def parse_chunks(self):
        """
        Parse out any pending data chunks in the chunker. If
        it is a valid data piece, build a particle, update the position and
        timestamp. Go until the chunker has no more valid data.
        @retval a list of tuples with sample particles encountered in this
            parsing, plus the state. An empty list of nothing was parsed.
        """
        result_particles = []

        # non-data does not need to be handled here because for the single file
        # the data may be corrected and re-written later, it is just ignored until it matches
        (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index()

        while chunk != None:
            header_match = SIO_HEADER_MATCHER.match(chunk)
            sample_count = 0
            if header_match.group(1) == "PH":
                # start after the sio header
                index = header_match.end(0)
                last_index = index
                chunk_len = len(chunk)
                while index < chunk_len:
                    data_match = DATA_MATCHER.match(chunk[index:])
                    control_match = CONTROL_MATCHER.match(chunk[index:])
                    # check for any valid match and make sure no extra data was found between valid matches
                    if data_match or control_match or chunk[index] == SIO_END:
                        # if the indices don't match we have data that doesn't match
                        # exclude the expected possible ph end bytes
                        if last_index != index and chunk[last_index:index] != PH_EXTRA_END:
                            # we found bad data, send a sample exception but keep processing the file
                            log.warning("unknown data found in chunk %s from %d to %d", chunk[1:32], last_index, index)
                            self._exception_callback(
                                SampleException(
                                    "unknown data found in chunk %s from %d to %d" % (chunk[1:32], last_index, index)
                                )
                            )
                            # stop processing this sio block, it is bad
                            break
                    if data_match:
                        log.debug("Found data match in chunk %s at index %d", chunk[1:32], index)
                        # particle-ize the data block received, return the record
                        # pre-pend the sio header timestamp to the data record (in header_match.group(3))
                        sample = self._extract_sample(
                            PhsenParserDataParticle, None, header_match.group(3) + data_match.group(0), None
                        )
                        if sample:
                            # create particle
                            result_particles.append(sample)
                            sample_count += 1
                        index += len(data_match.group(0))
                        last_index = index
                    elif control_match:
                        log.debug("Found control match in chunk %s at index %d", chunk[1:32], index)
                        # particle-ize the data block received, return the record
                        # pre-pend the sio header timestamp to the control record (in header_match.group(3))
                        sample = self._extract_sample(
                            PhsenControlDataParticle, None, header_match.group(3) + control_match.group(0), None
                        )
                        if sample:
                            # create particle
                            result_particles.append(sample)
                            sample_count += 1
                        index += len(control_match.group(0))
                        last_index = index
                    elif chunk[index] == SIO_END:
                        # found end of sio block marker, we are done with this chunk
                        break
                    else:
                        # we found extra data, warn on chunks of extra data not each byte
                        index += 1

            self._chunk_sample_count.append(sample_count)

            # non-data does not need to be handled here because for the single file
            # the data may be corrected and re-written later, it is just ignored until it matches
            (timestamp, chunk, start, end) = self._chunker.get_next_data_with_index()

        return result_particles

# 需要导入模块: from mi.dataset.parser.sio_mule_common import SIO_HEADER_MATCHER [as 别名]
# 或者: from mi.dataset.parser.sio_mule_common.SIO_HEADER_MATCHER import match [as 别名]
    def parse_chunks(self):
        """
        Parse out any pending data chunks in the chunker. If
        it is a valid data piece, build a particle, update the position and
        timestamp. Go until the chunker has no more valid data.
        @retval a list of tuples with sample particles encountered in this
            parsing, plus the state. An empty list if nothing was parsed.
        """
        result_particles = []
        (timestamp, chunk) = self._chunker.get_next_data()

        while chunk is not None:
            sio_header_match = SIO_HEADER_MATCHER.match(chunk)

            log.debug('parsing header %s', sio_header_match.group(0)[1:SIO_HEADER_BYTES])

            if sio_header_match.group(1) != 'WE':
                log.warn(" chunk did not match header WE %s", chunk[0:SIO_HEADER_BYTES])
                # get the next chunk
                (timestamp, chunk) = self._chunker.get_next_data()
                continue  # jump to next iteration of the chunk loop

                # Parse/match the E file header
            e_header_match = WFP_E_GLOBAL_FLAGS_HEADER_MATCHER.search(
                chunk[SIO_HEADER_BYTES:SIO_HEADER_BYTES+HEADER_BYTES+1])

            if not e_header_match:
                # no e header match
                log.warn("*BAD E HEADER 0x%s",
                         ":".join("{:02x}".format(ord(c)) for c in chunk))
                self._exception_callback(UnexpectedDataException("Found unexpected data."))
                # get the next chunk
                (timestamp, chunk) = self._chunker.get_next_data()
                continue  # jump to next iteration of the chunk loop

            payload = chunk[SIO_HEADER_BYTES+HEADER_BYTES+1:]

            data_split = self.we_split_function(payload)

            log.debug('Found data match in chunk %s', chunk[1:SIO_HEADER_BYTES])
            for ii in range(0, len(data_split)):
                e_record = payload[data_split[ii][0]:data_split[ii][1]]
                log.debug('Extracted E Record to store in particle %s', hexlify(e_record))

                # particle-ize the data block received, return the record
                if not STATUS_START_MATCHER.match(e_record[0:STATUS_BYTES]):

                    fields = struct.unpack('>I', e_record[0:4])
                    timestamp_s = float(fields[0])
                    timestamp = ntplib.system_to_ntp_time(timestamp_s)

                    if len(e_record) == E_GLOBAL_SAMPLE_BYTES:
                        # create particle
                        log.debug('Particle created with raw data %s', hexlify(e_record))
                        log.debug('Particle timestamp = %f', timestamp)
                        sample = self._extract_sample(DostaLnWfpSioDataParticle,
                                                      None,
                                                      e_record,
                                                      timestamp)
                        result_particles.append(sample)

            (timestamp, chunk) = self._chunker.get_next_data()

        return result_particles