53 lines
1.9 KiB
Python
53 lines
1.9 KiB
Python
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import os
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from twisted.enterprise import adbapi
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import time
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class BlobHistoryManager(object):
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"""
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Class to archive historical blob upload and download information
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This class creates two tables in lbry data folder/blob_history.db, 'download' and 'upload'
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The tables store information about what blob was uploaded or downloaded, to or from which peer,
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at what price, and when.
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"""
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def __init__(self, db_dir):
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self.db = None
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self.db_dir = db_dir
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def _open_db(self):
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self.db = adbapi.ConnectionPool('sqlite3', os.path.join(self.db_dir, "blob_history.db"),
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check_same_thread=False)
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def create_tables(transaction):
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transaction.execute("create table if not exists download (" +
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" id integer primary key autoincrement, " +
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" blob text, " +
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" host text, " +
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" rate float, " +
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" ts integer)")
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transaction.execute("create table if not exists upload (" +
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" id integer primary key autoincrement, " +
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" blob text, " +
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" host text, " +
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" rate float, " +
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" ts integer)")
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return self.db.runInteraction(create_tables)
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def add_transaction(self, blob_hash, host, rate, upload=False):
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ts = int(time.time())
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if upload:
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d = self.db.runQuery("insert into upload values (null, ?, ?, ?, ?) ", (blob_hash, str(host), float(rate), ts))
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else:
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d = self.db.runQuery("insert into download values (null, ?, ?, ?, ?) ", (blob_hash, str(host), float(rate), ts))
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return d
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def start(self):
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d = self._open_db()
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return d
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