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98 lines
3.3 KiB
Java
98 lines
3.3 KiB
Java
/**
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* Copyright 2015 LinkedIn Corp. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*/
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package actors;
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import akka.actor.UntypedActor;
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import java.io.InputStream;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Properties;
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import metadata.etl.EtlJob;
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import org.python.core.PyDictionary;
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import org.python.core.PyString;
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import org.python.core.PySystemState;
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import org.python.util.PythonInterpreter;
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import play.Logger;
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import play.Play;
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import wherehows.common.Constant;
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import wherehows.common.utils.JobsUtil;
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import static wherehows.common.Constant.*;
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/**
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* Created by zechen on 11/8/15.
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*/
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public class TreeBuilderActor extends UntypedActor {
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private static final String WH_DB_URL = Play.application().configuration().getString("db.wherehows.url");
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private static final String WH_DB_USERNAME = Play.application().configuration().getString("db.wherehows.username");
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private static final String WH_DB_PASSWORD = Play.application().configuration().getString("db.wherehows.password");
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private static final String WH_DB_DRIVER = Play.application().configuration().getString("db.wherehows.driver");
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public static final String ETL_JOBS_DIR = Play.application().configuration().getString(WH_ETL_JOBS_DIR);
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private static final String TREE_JOB_TYPE = "tree";
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private static Map<String, Properties> treeJobList = new HashMap<>();
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private PythonInterpreter interpreter;
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private PySystemState sys;
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@Override
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public void preStart() throws Exception {
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treeJobList = JobsUtil.getEnabledJobsByType(ETL_JOBS_DIR, TREE_JOB_TYPE);
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}
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@Override
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public void onReceive(Object o) throws Exception {
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if (!(o instanceof String)) {
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throw new Exception("message type is not supported!");
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}
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String jobName = (String) o;
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Logger.info("Start tree job {}", jobName);
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Properties props = treeJobList.get(jobName);
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if (props == null) {
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Logger.error("unknown job {}", jobName);
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return;
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}
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PyDictionary config = new PyDictionary();
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for (String key : props.stringPropertyNames()) {
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String value = props.getProperty(key);
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config.put(new PyString(key), new PyString(value));
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}
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config.put(new PyString(Constant.WH_DB_URL_KEY), new PyString(WH_DB_URL));
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config.put(new PyString(Constant.WH_DB_USERNAME_KEY), new PyString(WH_DB_USERNAME));
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config.put(new PyString(Constant.WH_DB_PASSWORD_KEY), new PyString(WH_DB_PASSWORD));
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config.put(new PyString(Constant.WH_DB_DRIVER_KEY), new PyString(WH_DB_DRIVER));
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sys = new PySystemState();
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sys.argv.append(config);
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interpreter = new PythonInterpreter(null, sys);
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String script = props.getProperty(Constant.JOB_SCRIPT_KEY);
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InputStream in = EtlJob.class.getClassLoader().getResourceAsStream(script);
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if (in != null) {
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interpreter.execfile(in);
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in.close();
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Logger.info("Finish tree job {}", jobName);
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} else {
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Logger.error("can not find jython script {}", script);
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}
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}
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}
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