LoadSweden.java

package se.kodapan.osm.sweden;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import se.kodapan.osm.domain.root.Root;
import se.kodapan.osm.parser.xml.instantiated.InstantiatedOsmXmlParser;

import java.io.*;
import java.util.zip.GZIPInputStream;

/**
 * @author kalle
 * @since 2013-09-25 6:19 PM
 */
public class LoadSweden {

  private static Logger log = LoggerFactory.getLogger(LoadSweden.class);

  public static void main(String[] args) throws Exception {

    ObjectInputStream ois = new ObjectInputStream(new GZIPInputStream(new FileInputStream(new File("target/sweden.root.raw.gz"))));
    Root root = (Root)ois.readObject();
    ois.close();

    memUse();

    System.currentTimeMillis();

  }

  public static void factory() throws Exception {

    final InstantiatedOsmXmlParser parser = new InstantiatedOsmXmlParser();

    Thread thread = new Thread(new Runnable() {
      @Override
      public void run() {
        while (true) {
          try {
            Thread.sleep(10000);
            log.debug(parser.getRoot().getNodes().size() + " nodes, " + parser.getRoot().getWays().size() + " ways, " + parser.getRoot().getRelations().size() + " relations.");
          } catch (Exception e) {
            e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
          }
        }
      }
    });
    thread.setDaemon(true);
    thread.start();

    parser.parse(new InputStreamReader(new FileInputStream("/tmp/sweden-latest.osm"), "UTF8"));

    memUse();

    System.currentTimeMillis();

    ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(new File("target/sweden.root.raw")));
    oos.writeObject(parser.getRoot());
    oos.close();

  }

  private static void memUse() {
    Runtime rt = Runtime.getRuntime();
    System.gc();
    long usedMB = (rt.totalMemory() - rt.freeMemory()) / 1024 / 1024;
    System.out.println("MB usage " + usedMB);
  }

}