110 lines
3.2 KiB
Java
110 lines
3.2 KiB
Java
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package com.osmand.swing;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.sql.PreparedStatement;
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import java.sql.SQLException;
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import java.sql.Statement;
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import org.apache.commons.logging.Log;
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import com.osmand.LogUtil;
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public class SQLiteBigPlanetIndex {
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private static final Log log = LogUtil.getLog(SQLiteBigPlanetIndex.class);
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private static final int BATCH_SIZE = 50;
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public static void createSQLiteDatabase(File dirWithTiles, String regionName, String tileSource) throws SQLException, IOException {
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long now = System.currentTimeMillis();
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try {
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Class.forName("org.sqlite.JDBC"); //$NON-NLS-1$
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} catch (ClassNotFoundException e) {
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log.error("Illegal configuration", e); //$NON-NLS-1$
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throw new IllegalStateException(e);
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}
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File fileToWrite = new File(dirWithTiles, regionName + "." + tileSource + ".sqlitedb");
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fileToWrite.delete();
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Connection conn = DriverManager.getConnection("jdbc:sqlite:" + fileToWrite.getAbsolutePath()); //$NON-NLS-1$
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Statement statement = conn.createStatement();
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statement.execute("CREATE TABLE tiles (x int, y int, z int, s int, image blob, PRIMARY KEY (x,y,z,s))");
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statement.execute("CREATE INDEX IND on tiles (x,y,z,s)");
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statement.execute("CREATE TABLE info(minzoom,maxzoom)");
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statement.execute("CREATE TABLE android_metadata (locale TEXT)");
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statement.close();
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conn.setAutoCommit(false);
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PreparedStatement pStatement = conn.prepareStatement("INSERT INTO tiles VALUES (?, ?, ?, ?, ?)");
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int ch = 0;
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int bufSize = 32 * 1024;
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byte[] buf = new byte[bufSize];
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int maxZoom = 17;
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int minZoom = 1;
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File rootDir = new File(dirWithTiles, tileSource);
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for(File z : rootDir.listFiles()){
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try {
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int zoom = Integer.parseInt(z.getName());
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for(File xDir : z.listFiles()){
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try {
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int x = Integer.parseInt(xDir.getName());
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for(File f : xDir.listFiles()){
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if(!f.isFile()){
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continue;
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}
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try {
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int i = f.getName().indexOf('.');
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int y = Integer.parseInt(f.getName().substring(0, i));
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buf = new byte[(int) f.length()];
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if(zoom > maxZoom){
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maxZoom = zoom;
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}
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if(zoom < minZoom){
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minZoom = zoom;
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}
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FileInputStream is = new FileInputStream(f);
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int l = is.read(buf);
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if (l > 0) {
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pStatement.setInt(1, x);
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pStatement.setInt(2, y);
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pStatement.setInt(3, zoom);
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pStatement.setInt(4, 0);
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pStatement.setBytes(5, buf);
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pStatement.addBatch();
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ch++;
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if (ch >= BATCH_SIZE) {
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pStatement.executeBatch();
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ch = 0;
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}
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}
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} catch (NumberFormatException e) {
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}
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}
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} catch (NumberFormatException e) {
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}
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}
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} catch (NumberFormatException e) {
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}
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}
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if (ch > 0) {
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pStatement.executeBatch();
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ch = 0;
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}
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pStatement.close();
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conn.commit();
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conn.close();
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log.info("Index created " + fileToWrite.getName() + " " + (System.currentTimeMillis() - now) + " ms");
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}
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}
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