datahub/wherehows-backend/app/actors/TreeBuilderActor.java
Mars Lan 5f5c0937d1 Rename web, backend-service (#490)
* Rename web to wherehows-api and update README.

* Rename backend-service to wherehows-backend

* Rename metadata-etl to wherehows-etl

* Rename hadoop-dataset-extractor-standalone to wherehows-hadoop
2017-07-10 13:42:56 -07:00

73 lines
2.2 KiB
Java

/**
* Copyright 2015 LinkedIn Corp. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*/
package actors;
import akka.actor.UntypedActor;
import metadata.etl.EtlJob;
import models.daos.EtlJobPropertyDao;
import org.python.core.PyDictionary;
import org.python.core.PyString;
import org.python.core.PySystemState;
import org.python.util.PythonInterpreter;
import play.Logger;
import java.io.InputStream;
import java.util.Properties;
/**
* Created by zechen on 11/8/15.
*/
public class TreeBuilderActor extends UntypedActor {
public PythonInterpreter interpreter;
public PySystemState sys;
@Override
public void onReceive(Object o) throws Exception {
if (o instanceof String) {
Properties whProps = EtlJobPropertyDao.getWherehowsProperties();
PyDictionary config = new PyDictionary();
for (String key : whProps.stringPropertyNames()) {
String value = whProps.getProperty(key);
config.put(new PyString(key), new PyString(value));
}
sys = new PySystemState();
sys.argv.append(config);
interpreter = new PythonInterpreter(null, sys);
String msg = (String) o;
Logger.info("Start build {} tree", msg);
InputStream in = null;
switch (msg) {
case "dataset":
in = EtlJob.class.getClassLoader().getResourceAsStream("jython/DatasetTreeBuilder.py");
break;
case "flow":
//in = EtlJob.class.getClassLoader().getResourceAsStream("jython/FlowTreeBuilder.py");
break;
default:
Logger.error("unknown message : {}", msg);
}
if (in != null) {
interpreter.execfile(in);
in.close();
Logger.info("Finish build {} tree", msg);
} else {
Logger.error("can not find jython script");
}
} else {
throw new Exception("message type is not supported!");
}
}
}