lib/predictionio/file_exporter.rb
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
module PredictionIO
# This class contains methods that allow you to export data for import though:
#
# $ pio import FILENAME
class FileExporter
def initialize(filename)
@filename = filename
@file = File.open(@filename, 'w')
end
def create_event(event, entity_type, entity_id, optional = {})
h = optional
h.key?('eventTime') || h['eventTime'] = DateTime.now.to_s
h['event'] = event
h['entityType'] = entity_type
h['entityId'] = entity_id
json = h.to_json
@file.write("#{json}\n")
end
def close
@file.close
end
end
end