Package com.splout.db.integration

Source Code of com.splout.db.integration.NShardEnsemble

package com.splout.db.integration;

/*
* #%L
* Splout SQL Server
* %%
* Copyright (C) 2012 Datasalt Systems S.L.
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>.
* #L%
*/

import com.splout.db.common.SploutConfiguration;
import com.splout.db.dnode.DNode;
import com.splout.db.dnode.DNodeHandler;
import com.splout.db.dnode.DNodeProperties;
import com.splout.db.dnode.FetcherProperties;
import com.splout.db.qnode.QNode;
import com.splout.db.qnode.QNodeHandler;

/**
* Like {@link OneShardEnsemble}, but for any number of local DNodes.
*/
public class NShardEnsemble {

  public void runForever(int nDNodes) throws Exception {
    SploutConfiguration config = SploutConfiguration.get();
    for(int i = 0; i < nDNodes; i++) {
      config = SploutConfiguration.get();
      // we need to change some props for avoiding conflicts, ports, etc
      config.setProperty(DNodeProperties.PORT, config.getInt(DNodeProperties.PORT) + i);
      config.setProperty(DNodeProperties.DATA_FOLDER, config.getString(DNodeProperties.DATA_FOLDER) + "-" + i);
      config.setProperty(FetcherProperties.TEMP_DIR, config.getString(FetcherProperties.TEMP_DIR) + "-" + i);
      DNode dnode = new DNode(config, new DNodeHandler());
      dnode.init();
    }
    QNode qnode = new QNode();
    qnode.start(config, new QNodeHandler());
  }

  public static void main(String[] args) throws Exception {
    NShardEnsemble ensemble = new NShardEnsemble();
    ensemble.runForever(Integer.parseInt(args[0]));
  }
}
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