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-rw-r--r--lib/rbot/journal/mongo.rb120
-rw-r--r--lib/rbot/journal/postgres.rb66
2 files changed, 176 insertions, 10 deletions
diff --git a/lib/rbot/journal/mongo.rb b/lib/rbot/journal/mongo.rb
new file mode 100644
index 00000000..24e9cfcc
--- /dev/null
+++ b/lib/rbot/journal/mongo.rb
@@ -0,0 +1,120 @@
+# encoding: UTF-8
+#-- vim:sw=2:et
+#++
+#
+# :title: journal backend for mongoDB
+
+require 'mongo'
+require 'json'
+
+module Irc
+class Bot
+module Journal
+
+ module Storage
+
+ class MongoStorage < AbstractStorage
+ attr_reader :client
+
+ def initialize(opts={})
+ Mongo::Logger.logger.level = Logger::WARN
+ @uri = opts[:uri] || 'mongodb://127.0.0.1:27017/rbot'
+ @client = Mongo::Client.new(@uri)
+ @collection = @client['journal']
+ log 'journal storage: mongodb connected to ' + @uri
+
+ drop if opts[:drop]
+ @collection.indexes.create_one({topic: 1})
+ end
+
+ def ensure_index(key)
+ @collection.indexes.create_one({'payload.'+key => 1})
+ end
+
+ def insert(m)
+ @collection.insert_one({
+ '_id' => m.id,
+ 'topic' => m.topic,
+ 'timestamp' => m.timestamp,
+ 'payload' => m.payload
+ })
+ end
+
+ def find(query=nil, limit=100, offset=0)
+ query_cursor(query).skip(offset).limit(limit).map do |document|
+ JournalMessage.new(id: document['_id'], timestamp: document['timestamp'].localtime,
+ topic: document['topic'], payload: document['payload'].to_h)
+ end
+ end
+
+ # returns the number of messages that match the query
+ def count(query=nil)
+ query_cursor(query).count
+ end
+
+ def remove(query=nil)
+ query_cursor(query).delete_many
+ end
+
+ def drop
+ @collection.drop
+ end
+
+ def query_cursor(query)
+ unless query
+ return @collection.find()
+ end
+
+ query_and = []
+
+ # ID query OR condition
+ unless query.id.empty?
+ query_and << {
+ '$or' => query.id.map { |_id|
+ {'_id' => _id}
+ }
+ }
+ end
+
+ unless query.topic.empty?
+ query_and << {
+ '$or' => query.topic.map { |topic|
+ if topic.include?('*')
+ pattern = topic.gsub('.', '\.').gsub('*', '.*')
+ {'topic' => {'$regex' => pattern}}
+ else
+ {'topic' => topic}
+ end
+ }
+ }
+ end
+
+ if query.timestamp[:from] or query.timestamp[:to]
+ where = {}
+ if query.timestamp[:from]
+ where['$gte'] = query.timestamp[:from]
+ end
+ if query.timestamp[:to]
+ where['$lte'] = query.timestamp[:to]
+ end
+ query_and << {'timestamp' => where}
+ end
+
+ unless query.payload.empty?
+ query_and << {
+ '$or' => query.payload.map { |key, value|
+ key = 'payload.' + key
+ {key => value}
+ }
+ }
+ end
+
+ @collection.find({
+ '$and' => query_and
+ })
+ end
+ end
+ end
+end # Journal
+end # Bot
+end # Irc
diff --git a/lib/rbot/journal/postgres.rb b/lib/rbot/journal/postgres.rb
index 52f5fb36..e63aefee 100644
--- a/lib/rbot/journal/postgres.rb
+++ b/lib/rbot/journal/postgres.rb
@@ -7,6 +7,28 @@
require 'pg'
require 'json'
+# as a replacement for CREATE INDEX IF NOT EXIST that is not in postgres.
+# define function to be able to create an index in case it doesnt exist:
+# source: http://stackoverflow.com/a/26012880
+CREATE_INDEX = <<-EOT
+CREATE OR REPLACE FUNCTION create_index(table_name text, index_name text, column_name text) RETURNS void AS $$
+declare
+ l_count integer;
+begin
+ select count(*)
+ into l_count
+ from pg_indexes
+ where schemaname = 'public'
+ and tablename = lower(table_name)
+ and indexname = lower(index_name);
+
+ if l_count = 0 then
+ execute 'create index ' || index_name || ' on ' || table_name || '(' || column_name || ')';
+ end if;
+end;
+$$ LANGUAGE plpgsql;
+EOT
+
module Irc
class Bot
module Journal
@@ -17,9 +39,10 @@ module Journal
attr_reader :conn
def initialize(opts={})
- @uri = opts[:uri] || 'postgresql://localhost/rbot_journal'
+ @uri = opts[:uri] || 'postgresql://localhost/rbot'
@conn = PG.connect(@uri)
@conn.exec('set client_min_messages = warning')
+ @conn.exec(CREATE_INDEX)
@version = @conn.exec('SHOW server_version;')[0]['server_version']
@version.gsub!(/^(\d+\.\d+)$/, '\1.0')
@@ -35,6 +58,7 @@ module Journal
drop if opts[:drop]
create_table
+ create_index('topic_index', 'topic')
end
def create_table
@@ -46,6 +70,23 @@ module Journal
payload %s NOT NULL)' % [@jsonb ? 'JSONB' : 'JSON'])
end
+ def create_index(index_name, column_name)
+ debug 'journal postges backend: create index %s for %s' % [
+ index_name, column_name]
+ @conn.exec_params('SELECT create_index($1, $2, $3)', [
+ 'journal', index_name, column_name])
+ end
+
+ def create_payload_index(key)
+ index_name = 'idx_payload_' + key.gsub('.', '_')
+ column = sql_payload_selector(key)
+ create_index(index_name, column)
+ end
+
+ def ensure_index(key)
+ create_payload_index(key)
+ end
+
def insert(m)
@conn.exec_params('INSERT INTO journal VALUES ($1, $2, $3, $4);',
[m.id, m.topic, m.timestamp, JSON.generate(m.payload)])
@@ -95,6 +136,19 @@ module Journal
@conn.exec('DROP TABLE journal;') rescue nil
end
+ def sql_payload_selector(key)
+ selector = 'payload'
+ k = key.to_s.split('.')
+ k.each_index { |i|
+ if i >= k.length-1
+ selector += '->>\'%s\'' % [@conn.escape_string(k[i])]
+ else
+ selector += '->\'%s\'' % [@conn.escape_string(k[i])]
+ end
+ }
+ selector
+ end
+
def query_to_sql(query)
params = []
placeholder = Proc.new do |value|
@@ -142,15 +196,7 @@ module Journal
unless query.payload.empty?
list = []
query.payload.each_pair do |key, value|
- selector = 'payload'
- k = key.to_s.split('.')
- k.each_index { |i|
- if i >= k.length-1
- selector += '->>\'%s\'' % [@conn.escape_string(k[i])]
- else
- selector += '->\'%s\'' % [@conn.escape_string(k[i])]
- end
- }
+ selector = sql_payload_selector(key)
list << selector + ' = ' + placeholder.call(value)
end
sql[:list] << {