Implement filter state per sync item

chainsyncer/session.py

@@ -4,14 +4,8 @@ import uuid
 
 class SyncSession:
 
-    def __init__(self, session_store, sync_state, session_id=None, is_default=False):
+    def __init__(self, session_store):
         self.session_store = session_store
-        if session_id == None:
-            session_id = str(uuid.uuid4())
-            is_default = True
-        self.session_id = session_id
-        self.is_default = is_default
-        self.sync_state = sync_state
         self.filters = []
         self.started = False
 
@@ -19,7 +13,7 @@ class SyncSession:
     def add_filter(self, fltr):
         if self.started:
             raise RuntimeError('filters cannot be changed after syncer start')
-        self.sync_state.register(fltr)
+        self.session_store.register(fltr)
         self.filters.append(fltr)
 
 

chainsyncer/store/fs.py

@@ -7,25 +7,33 @@ import logging
 from shep.store.file import SimpleFileStoreFactory
 from shep.persist import PersistedState
 
+# local imports 
+from chainsyncer.state import SyncState
+
 logg = logging.getLogger(__name__)
 
 
 class SyncFsItem:
     
-    def __init__(self, offset, target, state, started=False): #, offset, target, cursor):
+    def __init__(self, offset, target, sync_state, filter_state, started=False):
         self.offset = offset
         self.target = target
-        self.state = state
+        self.sync_state = sync_state
+        self.filter_state = filter_state
         s = str(offset)
-        match_state = self.state.NEW
+        match_state = self.sync_state.NEW
         if started:
-            match_state = self.state.SYNC
-        v = self.state.get(s)
+            match_state = self.sync_state.SYNC
+        v = self.sync_state.get(s)
         self.cursor = int.from_bytes(v, 'big')
 
 
+    def next(self):
+        pass
+
+
     def __str__(self):
-        return 'syncitem offset {} target {}'.format(offset, target, cursor)
+        return 'syncitem offset {} target {} cursor {}'.format(self.offset, self.target, self.cursor)
 
 
 
@@ -66,6 +74,12 @@ class SyncFsStore:
         self.state.add('SYNC')
         self.state.add('DONE')
 
+        base_filter_path = os.path.join(self.session_path, 'filter')
+        factory = SimpleFileStoreFactory(base_filter_path, binary=True)
+        filter_state_backend = PersistedState(factory, 0)
+        self.filter_state = SyncState(filter_state_backend)
+        self.register = self.filter_state.register
+    
 
     def __create_path(self, base_path, default_path, session_id=None):
         logg.debug('fs store path {} does not exist, creating'.format(self.session_path))
@@ -87,33 +101,28 @@ class SyncFsStore:
         self.state.sync(self.state.NEW)
         self.state.sync(self.state.SYNC)
 
-        thresholds = []
+        thresholds_sync = []
         for v in self.state.list(self.state.SYNC):
             block_number = int(v)
-            thresholds.append(block_number)
-            #s = str(block_number)
-            #s = os.path.join(self.session_path, str(block_number))
-            #self.range_paths.append(s)
+            thresholds_sync.append(block_number)
             logg.debug('queue resume {}'.format(block_number))
+        thresholds_new = []
         for v in self.state.list(self.state.NEW):
             block_number = int(v)
-            thresholds.append(block_number)
-            #s = str(block_number)
-            #s = os.path.join(self.session_path, str(block_number))
-            #o = SyncItem(s, self.state)
-            #o = SyncFsItem(block_number, target, self.state)
-            #self.items[block_number] = o
-            #self.range_paths.append(s)
+            thresholds_new.append(block_number)
             logg.debug('queue new range {}'.format(block_number))
 
-        thresholds.sort()
+        thresholds_sync.sort()
+        thresholds_new.sort()
+        thresholds = thresholds_sync + thresholds_new
         lim = len(thresholds) - 1
         for i in range(len(thresholds)):
             item_target = target
             if i < lim:
                 item_target = thresholds[i+1] 
-            o = SyncFsItem(block_number, item_target, self.state, started=True)
+            o = SyncFsItem(block_number, item_target, self.state, self.filter_state, started=True)
             self.items[block_number] = o
+            logg.info('added {}'.format(o))
 
         fp = os.path.join(self.session_path, str(target))
         if len(thresholds) == 0:

tests/test_basic.py

@@ -60,11 +60,7 @@ class TestSync(unittest.TestCase):
     def test_basic(self):
         store = MockStore(6)
         state = SyncState(store)
-        session = SyncSession(None, state)
-        self.assertTrue(session.is_default)
-        
-        session = SyncSession(None, state, session_id='foo')
-        self.assertFalse(session.is_default)
+        session = SyncSession(state)
 
 
     def test_sum(self):
@@ -91,7 +87,7 @@ class TestSync(unittest.TestCase):
     def test_session_start(self):
         store = MockStore(6)
         state = SyncState(store)
-        session = SyncSession(None, state)
+        session = SyncSession(state)
         session.start()
        
 

tests/test_fs.py

@@ -65,5 +65,12 @@ class TestFs(unittest.TestCase):
         self.assertFalse(store.first)
 
 
+    def test_store_resume(self):
+        store = SyncFsStore(self.path)
+        store.start(13)
+        self.assertTrue(store.first)
+
+
+
 if __name__ == '__main__':
     unittest.main()