<s> import boto <EOL> from boto . services . message import ServiceMessage <EOL> from boto . services . servicedef import ServiceDef <EOL> from boto . pyami . scriptbase import ScriptBase <EOL> from boto . utils import get_ts <EOL> import time <EOL> import os <EOL> import mimetypes <EOL> class Service ( ScriptBase ) : <EOL> ProcessingTime = <NUM_LIT> <EOL> def __init__ ( self , config_file = None , mimetype_files = None ) : <EOL> super ( Service , self ) . __init__ ( config_file ) <EOL> self . name = self . __class__ . __name__ <EOL> self . working_dir = boto . config . get ( '<STR_LIT>' , '<STR_LIT>' ) <EOL> self . sd = ServiceDef ( config_file ) <EOL> self . retry_count = self . sd . getint ( '<STR_LIT>' , <NUM_LIT:5> ) <EOL> self . loop_delay = self . sd . getint ( '<STR_LIT>' , <NUM_LIT:30> ) <EOL> self . processing_time = self . sd . getint ( '<STR_LIT>' , <NUM_LIT> ) <EOL> self . input_queue = self . sd . get_obj ( '<STR_LIT>' ) <EOL> self . output_queue = self . sd . get_obj ( '<STR_LIT>' ) <EOL> self . output_domain = self . sd . get_obj ( '<STR_LIT>' ) <EOL> if mimetype_files : <EOL> mimetypes . init ( mimetype_files ) <EOL> def split_key ( key ) : <EOL> if key . find ( '<STR_LIT:;>' ) < <NUM_LIT:0> : <EOL> t = ( key , '<STR_LIT>' ) <EOL> else : <EOL> key , type = key . split ( '<STR_LIT:;>' ) <EOL> label , mtype = type . split ( '<STR_LIT:=>' ) <EOL> t = ( key , mtype ) <EOL> return t <EOL> def read_message ( self ) : <EOL> boto . log . info ( '<STR_LIT>' ) <EOL> message = self . input_queue . read ( self . processing_time ) <EOL> if message : <EOL> boto . log . info ( message . get_body ( ) ) <EOL> key = '<STR_LIT>' <EOL> message [ key ] = get_ts ( ) <EOL> return message <EOL> def get_file ( self , message ) : <EOL> bucket_name = message [ '<STR_LIT>' ] <EOL> key_name = message [ '<STR_LIT>' ] <EOL> file_name = os . path . join ( self . working_dir , message . get ( '<STR_LIT>' , '<STR_LIT>' ) ) <EOL> boto . log . info ( '<STR_LIT>' % ( bucket_name , key_name , file_name ) ) <EOL> bucket = boto . lookup ( '<STR_LIT>' , bucket_name ) <EOL> key = bucket . new_key ( key_name ) <EOL> key . get_contents_to_filename ( os . path . join ( self . working_dir , file_name ) ) <EOL> return file_name <EOL> def process_file ( self , in_file_name , msg ) : <EOL> return [ ] <EOL> def put_file ( self , bucket_name , file_path , key_name = None ) : <EOL> boto . log . info ( '<STR_LIT>' % ( file_path , bucket_name , key_name ) ) <EOL> bucket = boto . lookup ( '<STR_LIT>' , bucket_name ) <EOL> key = bucket . new_key ( key_name ) <EOL> key . set_contents_from_filename ( file_path ) <EOL> return key <EOL> def save_results ( self , results , input_message , output_message ) : <EOL> output_keys = [ ] <EOL> for file , type in results : <EOL> if '<STR_LIT>' in input_message : <EOL> output_bucket = input_message [ '<STR_LIT>' ] <EOL> else : <EOL> output_bucket = input_message [ '<STR_LIT>' ] <EOL> key_name = os . path . split ( file ) [ <NUM_LIT:1> ] <EOL> key = self . put_file ( output_bucket , file , key_name ) <EOL> output_keys . append ( '<STR_LIT>' % ( key . name , type ) ) <EOL> output_message [ '<STR_LIT>' ] = '<STR_LIT:U+002C>' . join ( output_keys ) <EOL> def write_message ( self , message ) : <EOL> message [ '<STR_LIT>' ] = get_ts ( ) <EOL> message [ '<STR_LIT>' ] = self . name <EOL> if '<STR_LIT>' in os . environ : <EOL> message [ '<STR_LIT>' ] = os . environ [ '<STR_LIT>' ] <EOL> else : <EOL> message [ '<STR_LIT>' ] = '<STR_LIT>' <EOL> message [ '<STR_LIT>' ] = self . instance_id <EOL> if self . output_queue : <EOL> boto . log . info ( '<STR_LIT>' % self . output_queue . id ) <EOL> self . output_queue . write ( message ) <EOL> if self . output_domain : <EOL> boto . log . info ( '<STR_LIT>' % self . output_domain . name ) <EOL> item_name = '<STR_LIT:/>' . join ( [ message [ '<STR_LIT>' ] , message [ '<STR_LIT>' ] , message [ '<STR_LIT>' ] ] ) <EOL> self . output_domain . put_attributes ( item_name , message ) <EOL> def delete_message ( self , message ) : <EOL> boto . log . info ( '<STR_LIT>' % self . input_queue . id ) <EOL> self . input_queue . delete_message ( message ) <EOL> def cleanup ( self ) : <EOL> pass <EOL> def shutdown ( self ) : <EOL> on_completion = self . sd . get ( '<STR_LIT>' , '<STR_LIT>' ) <EOL> if on_completion == '<STR_LIT>' : <EOL> if self . instance_id : <EOL> time . sleep ( <NUM_LIT> ) <EOL> c = boto . connect_ec2 ( ) <EOL> c . terminate_instances ( [ self . instance_id ] ) <EOL> def main ( self , notify = False ) : <EOL> self . notify ( '<STR_LIT>' % self . name ) <EOL> empty_reads = <NUM_LIT:0> <EOL> while self . retry_count < <NUM_LIT:0> or empty_reads < self . retry_count : <EOL> try : <EOL> input_message = self . read_message ( ) <EOL> if input_message : <EOL> empty_reads = <NUM_LIT:0> <EOL> output_message = ServiceMessage ( None , input_message . get_body ( ) ) <EOL> input_file = self . get_file ( input_message ) <EOL> results = self . process_file ( input_file , output_message ) <EOL> self . save_results ( results , input_message , output_message ) <EOL> self . write_message ( output_message ) <EOL> self . delete_message ( input_message ) <EOL> self . cleanup ( ) <EOL> else : <EOL> empty_reads += <NUM_LIT:1> <EOL> time . sleep ( self . loop_delay ) <EOL> except Exception : <EOL> boto . log . exception ( '<STR_LIT>' ) <EOL> empty_reads += <NUM_LIT:1> <EOL> self . notify ( '<STR_LIT>' % self . name ) <EOL> self . shutdown ( ) </s>
