Add debezium python runner as python module (#99)

README.md

@@ -21,15 +21,35 @@ Also, check [caveats](docs/CAVEATS.md) for better understanding the current limi
 - Clone from repo: `git clone https://github.com/memiiso/debezium-server-iceberg.git`
 - From the root of the project:
   - Build and package debezium server: `mvn -Passembly -Dmaven.test.skip package`
-  - After building, unzip your server distribution: `unzip debezium-server-iceberg-dist/target/debezium-server-iceberg-dist*.zip -d appdist`
+  - After building, unzip your server
+    distribution: `unzip debezium-server-iceberg-dist/target/debezium-server-iceberg-dist*.zip -d appdist`
   - cd into unzipped folder: `cd appdist`
-  - Create `application.properties` file and config it: `nano conf/application.properties`, you can check the example configuration in [application.properties.example](debezium-server-iceberg-sink/src/main/resources/conf/application.properties.example)
+  - Create `application.properties` file and config it: `nano conf/application.properties`, you can check the example
+    configuration
+    in [application.properties.example](debezium-server-iceberg-sink/src/main/resources/conf/application.properties.example)
   - Run the server using provided script: `bash run.sh`
 
+# Debezium python runner
+
+It's possible to use python to run,operate debezium server
+
+example:
+
+```commandline
+pip install git+https://github.com/ismailsimsek/debezium-server-iceberg.git@master#subdirectory=python
+debezium
+# running with custom arguments
+debezium --debezium_dir=/my/debezium_server/dir/ --java_home=/my/java/homedir/
+```
+
 # Contributing
-The Memiiso community welcomes anyone that wants to help out in any way, whether that includes reporting problems, helping with documentation, or contributing code changes to fix bugs, add tests, or implement new features. See [contributing document](CONTRIBUTING.md) for details.
+
+The Memiiso community welcomes anyone that wants to help out in any way, whether that includes reporting problems,
+helping with documentation, or contributing code changes to fix bugs, add tests, or implement new features.
+See [contributing document](CONTRIBUTING.md) for details.
 
 ### Contributors
+
 <a href="https://github.com/memiiso/debezium-server-iceberg/graphs/contributors">
   <img src="https://contributors-img.web.app/image?repo=memiiso/debezium-server-iceberg" />
 </a>

python/debezium/__init__.py

@@ -0,0 +1,109 @@
+import argparse
+import jnius_config
+import logging
+import os
+import sys
+#####  loggger
+import threading
+from pathlib import Path
+
+log = logging.getLogger(name="debezium")
+log.setLevel(logging.INFO)
+handler = logging.StreamHandler(sys.stdout)
+handler.setLevel(logging.INFO)
+formatter = logging.Formatter('%(asctime)s %(levelname)s  [%(module)s] (%(funcName)s) %(message)s')
+handler.setFormatter(formatter)
+log.addHandler(handler)
+
+
+#####
+
+class Debezium():
+
+    def __init__(self, debezium_dir: str = None, conf_dir: str = None, java_home: str = None):
+        if debezium_dir is None:
+            self.debezium_server_dir: Path = Path(__file__).resolve().parent
+        else:
+            if not Path(debezium_dir).is_dir():
+                raise Exception("Debezium Server directory '%s' not found" % debezium_dir)
+            self.debezium_server_dir: Path = Path(debezium_dir)
+            log.info("Setting Debezium dir to:%s" % self.debezium_server_dir.as_posix())
+
+        if conf_dir is None:
+            self.conf_dir = self.debezium_server_dir.joinpath("conf")
+        else:
+            if not Path(conf_dir).is_dir():
+                raise Exception("Debezium conf directory '%s' not found" % conf_dir)
+            self.conf_dir: Path = Path(conf_dir)
+            log.info("Setting conf dir to:%s" % self.conf_dir.as_posix())
+
+        ##### jnius
+        if java_home:
+            self.java_home(java_home=java_home)
+
+        DEBEZIUM_CLASSPATH: list = [
+            self.debezium_server_dir.joinpath('*').as_posix(),
+            self.debezium_server_dir.joinpath("lib/*").as_posix(),
+            self.conf_dir.as_posix()]
+        self.add_classpath(*DEBEZIUM_CLASSPATH)
+
+    def add_classpath(self, *claspath):
+        if jnius_config.vm_running:
+            raise ValueError(
+                "VM is already running, can't set classpath/options; VM started at %s" % jnius_config.vm_started_at)
+
+        jnius_config.add_classpath(*claspath)
+        log.info("VM Classpath: %s" % jnius_config.get_classpath())
+
+    def java_home(self, java_home: str):
+        if jnius_config.vm_running:
+            raise ValueError("VM is already running, can't set java home; VM started at" + jnius_config.vm_started_at)
+
+        os.putenv("JAVA_HOME", java_home)
+        os.environ["JAVA_HOME"] = java_home
+        log.info("JAVA_HOME set to %s" % java_home)
+
+    # pylint: disable=no-name-in-module
+    def run(self, *args: str):
+
+        try:
+            jnius_config.add_options(*args)
+            log.info("Configured jvm options:%s" % jnius_config.get_options())
+
+            from jnius import autoclass
+            DebeziumServer = autoclass('io.debezium.server.Main')
+            _dbz = DebeziumServer()
+            return _dbz.main()
+        finally:
+            from jnius import detach
+            detach()
+
+
+class DebeziumRunAsyn(threading.Thread):
+    def __init__(self, debezium_dir: str, java_args: list, java_home: str = None):
+        threading.Thread.__init__(self)
+        self.debezium_dir = debezium_dir
+        self.java_args = java_args
+        self.java_home = java_home
+        self._dbz: Debezium = None
+
+    def run(self):
+        self._dbz = Debezium(debezium_dir=self.debezium_dir, java_home=self.java_home)
+        return self._dbz.run(*self.java_args)
+
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--debezium_dir', type=str, default=None,
+                        help='Directory of debezium server application')
+    parser.add_argument('--conf_dir', type=str, default=None,
+                        help='Directory of application.properties')
+    parser.add_argument('--java_home', type=str, default=None,
+                        help='JAVA_HOME directory')
+    _args, args = parser.parse_known_args()
+    ds = Debezium(debezium_dir=_args.debezium_dir, conf_dir=_args.conf_dir, java_home=_args.java_home)
+    ds.run(*args)
+
+
+if __name__ == '__main__':
+    main()

python/setup.py

@@ -0,0 +1,27 @@
+import os
+from setuptools import setup, find_packages
+
+setup_py_dir = os.path.dirname(os.path.abspath(__file__))
+os.chdir(setup_py_dir)
+
+setup(
+    name='debezium',
+    entry_points={
+        'console_scripts': [
+            'debezium = debezium:main',
+        ],
+    },
+    version='0.1.0',
+    packages=find_packages(),
+    author="Memiiso Organization",
+    description='Debezium Server Python runner',
+    # long_description=pathlib.Path(__file__).parent.joinpath("README.md").read_text(encoding="utf-8"),
+    # long_description_content_type="text/markdown",
+    url='https://debezium.io/',
+    # download_url='https://github.com/memiiso/debezium/archive/master.zip',
+    include_package_data=True,
+    license="Apache License 2.0",
+    test_suite='tests',
+    install_requires=["pyjnius==1.4.0"],
+    python_requires='>=3',
+)