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import logging
import glob
import os
import shutil
import subprocess
import tempfile
import uuid
from urlparse import urlparse
from .service import ExternalService, SpawnedService
from .testutil import get_open_port
class Fixture(object):
project_root = os.environ.get('PROJECT_ROOT', os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
scala_version = os.environ.get("SCALA_VERSION", '2.8.0')
kafka_root = os.environ.get("KAFKA_ROOT", os.path.join(project_root, "kafka-src"))
ivy_root = os.environ.get('IVY_ROOT', os.path.expanduser("~/.ivy2/cache"))
@classmethod
def test_resource(cls, filename):
return os.path.join(cls.project_root, "test", "resources", filename)
@classmethod
def test_classpath(cls):
# ./kafka-src/bin/kafka-run-class.sh is the authority.
jars = ["."]
# assume all dependencies have been packaged into one jar with sbt-assembly's task "assembly-package-dependency"
jars.extend(glob.glob(cls.kafka_root + "/core/target/scala-%s/*.jar" % cls.scala_version))
jars = filter(os.path.exists, map(os.path.abspath, jars))
return ":".join(jars)
@classmethod
def kafka_run_class_args(cls, *args):
# ./kafka-src/bin/kafka-run-class.sh is the authority.
result = ["java", "-Xmx512M", "-server"]
result.append("-Dlog4j.configuration=file:%s" % cls.test_resource("log4j.properties"))
result.append("-Dcom.sun.management.jmxremote")
result.append("-Dcom.sun.management.jmxremote.authenticate=false")
result.append("-Dcom.sun.management.jmxremote.ssl=false")
result.append("-cp")
result.append(cls.test_classpath())
result.extend(args)
return result
@classmethod
def render_template(cls, source_file, target_file, binding):
with open(source_file, "r") as handle:
template = handle.read()
with open(target_file, "w") as handle:
handle.write(template.format(**binding))
class ZookeeperFixture(Fixture):
@classmethod
def instance(cls):
if "ZOOKEEPER_URI" in os.environ:
parse = urlparse(os.environ["ZOOKEEPER_URI"])
(host, port) = (parse.hostname, parse.port)
fixture = ExternalService(host, port)
else:
(host, port) = ("127.0.0.1", get_open_port())
fixture = cls(host, port)
fixture.open()
return fixture
def __init__(self, host, port):
self.host = host
self.port = port
self.tmp_dir = None
self.child = None
def out(self, message):
logging.info("*** Zookeeper [%s:%d]: %s", self.host, self.port, message)
def open(self):
self.tmp_dir = tempfile.mkdtemp()
self.out("Running local instance...")
logging.info(" host = %s", self.host)
logging.info(" port = %s", self.port)
logging.info(" tmp_dir = %s", self.tmp_dir)
# Generate configs
template = self.test_resource("zookeeper.properties")
properties = os.path.join(self.tmp_dir, "zookeeper.properties")
self.render_template(template, properties, vars(self))
# Configure Zookeeper child process
self.child = SpawnedService(self.kafka_run_class_args(
"org.apache.zookeeper.server.quorum.QuorumPeerMain",
properties
))
self.child.configure_stdout(os.path.join(self.tmp_dir, "stdout.txt"))
self.child.configure_stderr(os.path.join(self.tmp_dir, "stderr.txt"))
# Party!
self.out("Starting...")
self.child.start()
self.child.wait_for(r"Snapshotting")
self.out("Done!")
def close(self):
self.out("Stopping...")
self.child.stop()
self.child = None
self.out("Done!")
shutil.rmtree(self.tmp_dir)
class KafkaFixture(Fixture):
@classmethod
def instance(cls, broker_id, zk_host, zk_port, zk_chroot=None, replicas=1, partitions=2):
if zk_chroot is None:
zk_chroot = "kafka-python_" + str(uuid.uuid4()).replace("-", "_")
if "KAFKA_URI" in os.environ:
parse = urlparse(os.environ["KAFKA_URI"])
(host, port) = (parse.hostname, parse.port)
fixture = ExternalService(host, port)
else:
(host, port) = ("127.0.0.1", get_open_port())
fixture = KafkaFixture(host, port, broker_id, zk_host, zk_port, zk_chroot, replicas, partitions)
fixture.open()
return fixture
def __init__(self, host, port, broker_id, zk_host, zk_port, zk_chroot, replicas=1, partitions=2):
self.host = host
self.port = port
self.broker_id = broker_id
self.zk_host = zk_host
self.zk_port = zk_port
self.zk_chroot = zk_chroot
self.replicas = replicas
self.partitions = partitions
self.tmp_dir = None
self.child = None
self.running = False
def out(self, message):
logging.info("*** Kafka [%s:%d]: %s", self.host, self.port, message)
def open(self):
if self.running:
self.out("Instance already running")
return
self.tmp_dir = tempfile.mkdtemp()
self.out("Running local instance...")
logging.info(" host = %s", self.host)
logging.info(" port = %s", self.port)
logging.info(" broker_id = %s", self.broker_id)
logging.info(" zk_host = %s", self.zk_host)
logging.info(" zk_port = %s", self.zk_port)
logging.info(" zk_chroot = %s", self.zk_chroot)
logging.info(" replicas = %s", self.replicas)
logging.info(" partitions = %s", self.partitions)
logging.info(" tmp_dir = %s", self.tmp_dir)
# Create directories
os.mkdir(os.path.join(self.tmp_dir, "logs"))
os.mkdir(os.path.join(self.tmp_dir, "data"))
# Generate configs
template = self.test_resource("kafka.properties")
properties = os.path.join(self.tmp_dir, "kafka.properties")
self.render_template(template, properties, vars(self))
# Configure Kafka child process
self.child = SpawnedService(self.kafka_run_class_args(
"kafka.Kafka", properties
))
self.child.configure_stdout(os.path.join(self.tmp_dir, "stdout.txt"))
self.child.configure_stderr(os.path.join(self.tmp_dir, "stderr.txt"))
# Party!
self.out("Creating Zookeeper chroot node...")
proc = subprocess.Popen(self.kafka_run_class_args(
"org.apache.zookeeper.ZooKeeperMain",
"-server", "%s:%d" % (self.zk_host, self.zk_port),
"create", "/%s" % self.zk_chroot, "kafka-python"
),
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
if proc.wait() != 0:
self.out("Failed to create Zookeeper chroot node")
self.out(proc.stdout)
self.out(proc.stderr)
raise RuntimeError("Failed to create Zookeeper chroot node")
self.out("Done!")
self.out("Starting...")
self.child.start()
self.child.wait_for(r"\[Kafka Server %d\], Started" % self.broker_id)
self.out("Done!")
self.running = True
def close(self):
if not self.running:
self.out("Instance already stopped")
return
self.out("Stopping...")
self.child.stop()
self.child = None
self.out("Done!")
shutil.rmtree(self.tmp_dir)
self.running = False
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