# -*- coding: utf-8 -*- from __future__ import unicode_literals import time from elasticsearch.transport import Transport, get_host_info from elasticsearch.connection import Connection, ThriftConnection from elasticsearch.connection_pool import DummyConnectionPool from elasticsearch.exceptions import ConnectionError, ImproperlyConfigured from .test_cases import TestCase class DummyConnection(Connection): def __init__(self, **kwargs): self.exception = kwargs.pop('exception', None) self.status, self.data = kwargs.pop('status', 200), kwargs.pop('data', '{}') self.headers = kwargs.pop('headers', {}) self.calls = [] super(DummyConnection, self).__init__(**kwargs) def perform_request(self, *args, **kwargs): self.calls.append((args, kwargs)) if self.exception: raise self.exception return self.status, self.headers, self.data CLUSTER_NODES = '''{ "ok" : true, "cluster_name" : "super_cluster", "nodes" : { "wE_6OGBNSjGksbONNncIbg" : { "name" : "Nightwind", "transport_address" : "inet[/127.0.0.1:9300]", "hostname" : "wind", "version" : "0.20.4", "http_address" : "inet[/1.1.1.1:123]", "thrift_address" : "/1.1.1.1:9500]" } } }''' class TestHostsInfoCallback(TestCase): def test_master_only_nodes_are_ignored(self): nodes = [ {'attributes': {'data': 'false', 'client': 'true'}}, {'attributes': {'data': 'false'}}, {'attributes': {'data': 'false', 'master': 'true'}}, {'attributes': {'data': 'false', 'master': 'false'}}, {'attributes': {}}, {} ] chosen = [ i for i, node_info in enumerate(nodes) if get_host_info(node_info, i) is not None] self.assertEquals([0, 3, 4, 5], chosen) class TestTransport(TestCase): def test_single_connection_uses_dummy_connection_pool(self): t = Transport([{}]) self.assertIsInstance(t.connection_pool, DummyConnectionPool) t = Transport([{'host': 'localhost'}]) self.assertIsInstance(t.connection_pool, DummyConnectionPool) def test_host_with_scheme_different_from_connection_fails(self): self.assertRaises(ImproperlyConfigured, Transport, [{'host': 'localhost', 'scheme': 'thrift'}]) self.assertRaises(ImproperlyConfigured, Transport, [{'host': 'localhost', 'scheme': 'http'}], connection_class=ThriftConnection) def test_request_timeout_extracted_from_params_and_passed(self): t = Transport([{}], connection_class=DummyConnection) t.perform_request('GET', '/', params={'request_timeout': 42}) self.assertEquals(1, len(t.get_connection().calls)) self.assertEquals(('GET', '/', {}, None), t.get_connection().calls[0][0]) self.assertEquals({'timeout': 42, 'ignore': ()}, t.get_connection().calls[0][1]) def test_send_get_body_as_source(self): t = Transport([{}], send_get_body_as='source', connection_class=DummyConnection) t.perform_request('GET', '/', body={}) self.assertEquals(1, len(t.get_connection().calls)) self.assertEquals(('GET', '/', {'source': '{}'}, None), t.get_connection().calls[0][0]) def test_send_get_body_as_post(self): t = Transport([{}], send_get_body_as='POST', connection_class=DummyConnection) t.perform_request('GET', '/', body={}) self.assertEquals(1, len(t.get_connection().calls)) self.assertEquals(('POST', '/', None, b'{}'), t.get_connection().calls[0][0]) def test_body_gets_encoded_into_bytes(self): t = Transport([{}], connection_class=DummyConnection) t.perform_request('GET', '/', body='你好') self.assertEquals(1, len(t.get_connection().calls)) self.assertEquals(('GET', '/', None, b'\xe4\xbd\xa0\xe5\xa5\xbd'), t.get_connection().calls[0][0]) def test_body_bytes_get_passed_untouched(self): t = Transport([{}], connection_class=DummyConnection) body = b'\xe4\xbd\xa0\xe5\xa5\xbd' t.perform_request('GET', '/', body=body) self.assertEquals(1, len(t.get_connection().calls)) self.assertEquals(('GET', '/', None, body), t.get_connection().calls[0][0]) def test_kwargs_passed_on_to_connections(self): t = Transport([{'host': 'google.com'}], port=123) self.assertEquals(1, len(t.connection_pool.connections)) self.assertEquals('%s://google.com:123' % t.connection_pool.connections[0].transport_schema, t.connection_pool.connections[0].host) def test_kwargs_passed_on_to_connection_pool(self): dt = object() t = Transport([{}, {}], dead_timeout=dt) self.assertIs(dt, t.connection_pool.dead_timeout) def test_custom_connection_class(self): class MyConnection(object): def __init__(self, **kwargs): self.kwargs = kwargs t = Transport([{}], connection_class=MyConnection) self.assertEquals(1, len(t.connection_pool.connections)) self.assertIsInstance(t.connection_pool.connections[0], MyConnection) def test_add_connection(self): t = Transport([{}], randomize_hosts=False) t.add_connection({"host": "google.com", "port": 1234}) self.assertEquals(2, len(t.connection_pool.connections)) self.assertEquals('%s://google.com:1234' % t.connection_pool.connections[1].transport_schema, t.connection_pool.connections[1].host) def test_request_will_fail_after_X_retries(self): t = Transport([{'exception': ConnectionError('abandon ship')}], connection_class=DummyConnection) self.assertRaises(ConnectionError, t.perform_request, 'GET', '/') self.assertEquals(4, len(t.get_connection().calls)) def test_failed_connection_will_be_marked_as_dead(self): t = Transport([{'exception': ConnectionError('abandon ship')}] * 2, connection_class=DummyConnection) self.assertRaises(ConnectionError, t.perform_request, 'GET', '/') self.assertEquals(0, len(t.connection_pool.connections)) def test_resurrected_connection_will_be_marked_as_live_on_success(self): t = Transport([{}, {}], connection_class=DummyConnection) con1 = t.connection_pool.get_connection() con2 = t.connection_pool.get_connection() t.connection_pool.mark_dead(con1) t.connection_pool.mark_dead(con2) t.perform_request('GET', '/') self.assertEquals(1, len(t.connection_pool.connections)) self.assertEquals(1, len(t.connection_pool.dead_count)) def test_sniff_will_use_seed_connections(self): t = Transport([{'data': CLUSTER_NODES}], connection_class=DummyConnection) t.set_connections([{'data': 'invalid'}]) t.sniff_hosts() self.assertEquals(1, len(t.connection_pool.connections)) self.assertEquals('http://1.1.1.1:123', t.get_connection().host) def test_sniff_on_start_fetches_and_uses_nodes_list_for_its_schema(self): class DummyThriftConnection(DummyConnection): transport_schema = 'thrift' t = Transport([{'data': CLUSTER_NODES}], connection_class=DummyThriftConnection, sniff_on_start=True) self.assertEquals(1, len(t.connection_pool.connections)) self.assertEquals('thrift://1.1.1.1:9500', t.get_connection().host) def test_sniff_on_start_fetches_and_uses_nodes_list(self): t = Transport([{'data': CLUSTER_NODES}], connection_class=DummyConnection, sniff_on_start=True) self.assertEquals(1, len(t.connection_pool.connections)) self.assertEquals('http://1.1.1.1:123', t.get_connection().host) def test_sniff_on_start_ignores_sniff_timeout(self): t = Transport([{'data': CLUSTER_NODES}], connection_class=DummyConnection, sniff_on_start=True, sniff_timeout=12) self.assertEquals((('GET', '/_nodes/_all/clear'), {'timeout': None}), t.seed_connections[0].calls[0]) def test_sniff_uses_sniff_timeout(self): t = Transport([{'data': CLUSTER_NODES}], connection_class=DummyConnection, sniff_timeout=42) t.sniff_hosts() self.assertEquals((('GET', '/_nodes/_all/clear'), {'timeout': 42}), t.seed_connections[0].calls[0]) def test_sniff_reuses_connection_instances_if_possible(self): t = Transport([{'data': CLUSTER_NODES}, {"host": "1.1.1.1", "port": 123}], connection_class=DummyConnection, randomize_hosts=False) connection = t.connection_pool.connections[1] t.sniff_hosts() self.assertEquals(1, len(t.connection_pool.connections)) self.assertIs(connection, t.get_connection()) def test_sniff_on_fail_triggers_sniffing_on_fail(self): t = Transport([{'exception': ConnectionError('abandon ship')}, {"data": CLUSTER_NODES}], connection_class=DummyConnection, sniff_on_connection_fail=True, max_retries=0, randomize_hosts=False) self.assertRaises(ConnectionError, t.perform_request, 'GET', '/') self.assertEquals(1, len(t.connection_pool.connections)) self.assertEquals('http://1.1.1.1:123', t.get_connection().host) def test_sniff_after_n_seconds(self): t = Transport([{"data": CLUSTER_NODES}], connection_class=DummyConnection, sniffer_timeout=5) for _ in range(4): t.perform_request('GET', '/') self.assertEquals(1, len(t.connection_pool.connections)) self.assertIsInstance(t.get_connection(), DummyConnection) t.last_sniff = time.time() - 5.1 t.perform_request('GET', '/') self.assertEquals(1, len(t.connection_pool.connections)) self.assertEquals('http://1.1.1.1:123', t.get_connection().host) self.assertTrue(time.time() - 1 < t.last_sniff < time.time() + 0.01 )