Mercurial > repos > crs4 > dorina
diff data_source.py @ 1:7e66353ca9d0 draft default tip
Deleted selected files
author | crs4 |
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date | Mon, 10 Oct 2016 06:15:50 -0400 |
parents | c3a93255587e |
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--- a/data_source.py Thu Oct 06 12:39:30 2016 -0400 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,113 +0,0 @@ -#!/usr/bin/env python -# Retrieves data from external data source applications and stores in a dataset file. -# Data source application parameters are temporarily stored in the dataset file. -import socket, urllib, sys, os -from galaxy import eggs #eggs needs to be imported so that galaxy.util can find docutils egg... -from json import loads, dumps -from galaxy.util import get_charset_from_http_headers -import galaxy.model # need to import model before sniff to resolve a circular import dependency -from galaxy.datatypes import sniff -from galaxy.datatypes.registry import Registry -from galaxy.jobs import TOOL_PROVIDED_JOB_METADATA_FILE - -assert sys.version_info[:2] >= ( 2, 4 ) - -def stop_err( msg ): - sys.stderr.write( msg ) - sys.exit() - -GALAXY_PARAM_PREFIX = 'GALAXY' -GALAXY_ROOT_DIR = os.path.realpath( os.path.join( os.path.split( os.path.realpath( __file__ ) )[0], '..', '..' ) ) -GALAXY_DATATYPES_CONF_FILE = os.path.join( GALAXY_ROOT_DIR, 'datatypes_conf.xml' ) - -def load_input_parameters( filename, erase_file = True ): - datasource_params = {} - try: - json_params = loads( open( filename, 'r' ).read() ) - datasource_params = json_params.get( 'param_dict' ) - except: - json_params = None - for line in open( filename, 'r' ): - try: - line = line.strip() - fields = line.split( '\t' ) - datasource_params[ fields[0] ] = fields[1] - except: - continue - if erase_file: - open( filename, 'w' ).close() #open file for writing, then close, removes params from file - return json_params, datasource_params - -def __main__(): - filename = sys.argv[1] - try: - max_file_size = int( sys.argv[2] ) - except: - max_file_size = 0 - - job_params, params = load_input_parameters( filename ) - - if job_params is None: #using an older tabular file - enhanced_handling = False - job_params = dict( param_dict = params ) - job_params[ 'output_data' ] = [ dict( out_data_name = 'output', - ext = 'data', - file_name = filename, - extra_files_path = None ) ] - job_params[ 'job_config' ] = dict( GALAXY_ROOT_DIR=GALAXY_ROOT_DIR, GALAXY_DATATYPES_CONF_FILE=GALAXY_DATATYPES_CONF_FILE, TOOL_PROVIDED_JOB_METADATA_FILE = TOOL_PROVIDED_JOB_METADATA_FILE ) - else: - enhanced_handling = True - json_file = open( job_params[ 'job_config' ][ 'TOOL_PROVIDED_JOB_METADATA_FILE' ], 'w' ) #specially named file for output junk to pass onto set metadata - - datatypes_registry = Registry() - datatypes_registry.load_datatypes( root_dir = job_params[ 'job_config' ][ 'GALAXY_ROOT_DIR' ], config = job_params[ 'job_config' ][ 'GALAXY_DATATYPES_CONF_FILE' ] ) - - URL = params.get( 'URL', None ) #using exactly URL indicates that only one dataset is being downloaded - URL_method = params.get( 'URL_method', None ) - - # The Python support for fetching resources from the web is layered. urllib uses the httplib - # library, which in turn uses the socket library. As of Python 2.3 you can specify how long - # a socket should wait for a response before timing out. By default the socket module has no - # timeout and can hang. Currently, the socket timeout is not exposed at the httplib or urllib2 - # levels. However, you can set the default timeout ( in seconds ) globally for all sockets by - # doing the following. - socket.setdefaulttimeout( 600 ) - - for data_dict in job_params[ 'output_data' ]: - cur_filename = data_dict.get( 'file_name', filename ) - cur_URL = params.get( '%s|%s|URL' % ( GALAXY_PARAM_PREFIX, data_dict[ 'out_data_name' ] ), URL ) - if not cur_URL: - open( cur_filename, 'w' ).write( "" ) - stop_err( 'The remote data source application has not sent back a URL parameter in the request.' ) - - # The following calls to urllib.urlopen() will use the above default timeout - try: - if not URL_method or URL_method == 'get': - page = urllib.urlopen( cur_URL ) - elif URL_method == 'post': - page = urllib.urlopen( cur_URL, urllib.urlencode( params ) ) - except Exception, e: - stop_err( 'The remote data source application may be off line, please try again later. Error: %s' % str( e ) ) - if max_file_size: - file_size = int( page.info().get( 'Content-Length', 0 ) ) - if file_size > max_file_size: - stop_err( 'The size of the data (%d bytes) you have requested exceeds the maximum allowed (%d bytes) on this server.' % ( file_size, max_file_size ) ) - #do sniff stream for multi_byte - try: - cur_filename, is_multi_byte = sniff.stream_to_open_named_file( page, os.open( cur_filename, os.O_WRONLY | os.O_CREAT ), cur_filename, source_encoding=get_charset_from_http_headers( page.headers ) ) - except Exception, e: - stop_err( 'Unable to fetch %s:\n%s' % ( cur_URL, e ) ) - - #here import checks that upload tool performs - if enhanced_handling: - try: - ext = sniff.handle_uploaded_dataset_file( filename, datatypes_registry, ext = data_dict[ 'ext' ], is_multi_byte = is_multi_byte ) - except Exception, e: - stop_err( str( e ) ) - info = dict( type = 'dataset', - dataset_id = data_dict[ 'dataset_id' ], - ext = ext) - - json_file.write( "%s\n" % dumps( info ) ) - -if __name__ == "__main__": __main__()