openrefine-client/google/refine/client.py

155 lines
7.8 KiB
Python

#! /usr/bin/env python
"""
Commands provided for the CLI and interactive usage
"""
# Copyright (c) 2011 Paul Makepeace, Real Programmers. All rights reserved.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>
import os
import sys
import time
import json
from google.refine import refine
def list_projects():
"""Query the OpenRefine server and list projects by ID: name."""
projects = refine.Refine(refine.RefineServer()).list_projects().items()
def date_to_epoch(json_dt):
"""Convert a JSON date time into seconds-since-epoch."""
return time.mktime(time.strptime(json_dt, '%Y-%m-%dT%H:%M:%SZ'))
projects.sort(key=lambda v: date_to_epoch(v[1]['modified']), reverse=True)
for project_id, project_info in projects:
print('{0:>14}: {1}'.format(project_id, project_info['name']))
def info(project_id):
"""Show project metadata"""
projects = refine.Refine(refine.RefineServer()).list_projects().items()
for projects_id, projects_info in projects:
if project_id == projects_id:
print('{0}: {1}'.format('id', projects_id))
print('{0}: {1}'.format('name', projects_info['name']))
print('{0}: {1}'.format('created', projects_info['created']))
print('{0}: {1}'.format('modified', projects_info['modified']))
def create_project(options):
"""Create a new project from options.create file."""
# general defaults are defined in google/refine/refine.py new_project
# additional defaults for each file type
defaults = {}
defaults['xml'] = { 'project_format' : 'text/xml', 'recordPath' : 'record' }
defaults['csv'] = { 'project_format' : 'text/line-based/*sv', 'separator' : ',' }
defaults['tsv'] = { 'project_format' : 'text/line-based/*sv', 'separator' : '\t' }
defaults['line-based'] = { 'project_format' : 'text/line-based', 'skipDataLines' : -1 }
defaults['fixed-width'] = { 'project_format' : 'text/line-based/fixed-width', 'headerLines' : 0 }
defaults['json'] = { 'project_format' : 'text/json', 'recordPath' : ('_', '_') }
defaults['xls'] = { 'project_format' : 'binary/text/xml/xls/xlsx', 'sheets' : 0 }
defaults['xlsx'] = { 'project_format' : 'binary/text/xml/xls/xlsx', 'sheets' : 0 }
defaults['ods'] = { 'project_format' : 'text/xml/ods', 'sheets' : 0 }
# guess format from file extension (or legacy option --format)
input_format = os.path.splitext(options.create)[1][1:].lower()
if input_format == 'txt' and options.columnWidths:
input_format = 'fixed-width'
if input_format == 'txt' and not options.columnWidths:
input_format = 'line-based'
if options.input_format:
input_format = options.input_format
# defaults for selected format
input_dict = defaults[input_format]
# user input
input_user = { group4_arg.dest : getattr(options, group4_arg.dest) for group4_arg in group4.option_list }
input_user['strings'] = { k: v for k, v in input_user.items() if v != None and v not in ['true', 'false'] }
input_user['trues'] = { k: True for k, v in input_user.items() if v == 'true' }
input_user['falses'] = { k: False for k, v in input_user.items() if v == 'false' }
input_user_eval = input_user['strings']
input_user_eval.update(input_user['trues'])
input_user_eval.update(input_user['falses'])
# merge defaults with user input
input_dict.update(input_user_eval)
input_dict['project_file'] = options.create
refine.Refine(refine.RefineServer()).new_project(**input_dict)
def export_project(project, options):
"""Dump a project to stdout or options.output file."""
export_format = 'tsv'
if options.output and not options.splitToFiles == 'true':
ext = os.path.splitext(options.output)[1][1:]
if ext:
export_format = ext.lower()
output = open(options.output, 'wb')
else:
output = sys.stdout
if options.template:
templateconfig = { group6_arg.dest : getattr(options, group6_arg.dest) for group6_arg in group6.option_list if group6_arg.dest in ['prefix', 'template', 'rowSeparator', 'suffix'] }
if options.mode == 'record-based':
engine = { 'facets':[], 'mode':'record-based' }
else:
engine = { 'facets':[], 'mode':'row-based' }
if options.facets:
engine['facets'].append(json.loads(options.facets))
if options.filterQuery:
if not options.filterColumn:
filterColumn = project.get_models()['columnModel']['keyColumnName']
else:
filterColumn = options.filterColumn
textFilter = { 'type':'text', 'name':filterColumn, 'columnName':filterColumn, 'mode':'regex', 'caseSensitive':False, 'query':options.filterQuery }
engine['facets'].append(textFilter)
templateconfig.update({ 'engine': json.dumps(engine) })
if options.splitToFiles == 'true':
# common config for row-based and record-based
prefix = templateconfig['prefix']
suffix = templateconfig['suffix']
split = '===|||THISISTHEBEGINNINGOFANEWRECORD|||==='
keyColumn = project.get_models()['columnModel']['keyColumnName']
if not options.output:
filename = time.strftime('%Y%m%d')
else:
filename = os.path.splitext(options.output)[0]
ext = os.path.splitext(options.output)[1][1:]
if not ext:
ext = 'txt'
if options.suffixById:
ids_template = '{{forNonBlank(cells["' + keyColumn + '"].value, v, v, "")}}'
ids_templateconfig = { 'engine': json.dumps(engine), 'template': ids_template, 'rowSeparator':'\n' }
ids = [line.rstrip('\n') for line in project.export_templating(**ids_templateconfig) if line.rstrip('\n')]
if options.mode == 'record-based':
# record-based: split-character into template if key column is not blank (=record)
template = '{{forNonBlank(cells["' + keyColumn + '"].value, v, "' + split + '", "")}}' + templateconfig['template']
templateconfig.update({ 'prefix': '', 'suffix': '', 'template': template, 'rowSeparator':'' })
else:
# row-based: split-character into template
template = split + templateconfig['template']
templateconfig.update({ 'prefix': '', 'suffix': '', 'template': template, 'rowSeparator':'' })
records = project.export_templating(**templateconfig).read().split(split)
del records[0] # skip first blank entry
if options.suffixById:
for index, record in enumerate(records):
output = open(filename + '_' + ids[index] + '.' + ext, 'wb')
output.writelines([prefix, record, suffix])
else:
zeros = len(str(len(records)))
for index, record in enumerate(records):
output = open(filename + '_' + str(index+1).zfill(zeros) + '.' + ext, 'wb')
output.writelines([prefix, record, suffix])
else:
output.writelines(project.export_templating(**templateconfig))
output.close()
else:
output.writelines(project.export(export_format=export_format))
output.close()