127 lines
4.5 KiB
Java
127 lines
4.5 KiB
Java
package de.bluecolored.bluemap.core.storage.sql;
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import com.flowpowered.math.vector.Vector2i;
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import de.bluecolored.bluemap.core.storage.CompressedInputStream;
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import de.bluecolored.bluemap.core.storage.Compression;
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import de.bluecolored.bluemap.core.storage.sql.dialect.PostgresDialect;
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import de.bluecolored.bluemap.core.util.WrappedOutputStream;
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import java.io.*;
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import java.net.MalformedURLException;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.util.Optional;
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public class PostgreSQLStorage extends SQLStorage {
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public PostgreSQLStorage(SQLStorageSettings config) throws MalformedURLException, SQLDriverException {
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super(PostgresDialect.INSTANCE, config);
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}
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@Override
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public OutputStream writeMapTile(String mapId, int lod, Vector2i tile) throws IOException {
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Compression compression = lod == 0 ? this.hiresCompression : Compression.NONE;
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ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
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return new WrappedOutputStream(compression.compress(byteOut), () -> {
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int mapFK = getMapFK(mapId);
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int tileCompressionFK = getMapTileCompressionFK(compression);
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recoveringConnection(connection -> {
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byte[] byteData = byteOut.toByteArray();
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ByteArrayInputStream inputStream = new ByteArrayInputStream(byteData);
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PreparedStatement statement = connection.prepareStatement(this.dialect.writeMapTile());
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statement.setInt(1, mapFK);
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statement.setInt(2, lod);
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statement.setInt(3, tile.getX());
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statement.setInt(4, tile.getY());
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statement.setInt(5, tileCompressionFK);
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statement.setBinaryStream(6, inputStream);
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statement.executeUpdate();
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}, 2);
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});
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}
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@Override
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public OutputStream writeMeta(String mapId, String name) {
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ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
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return new WrappedOutputStream(byteOut, () -> {
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int mapFK = getMapFK(mapId);
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recoveringConnection(connection -> {
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byte[] byteData = byteOut.toByteArray();
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ByteArrayInputStream inputStream = new ByteArrayInputStream(byteData);
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PreparedStatement statement = connection.prepareStatement(this.dialect.writeMeta());
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statement.setInt(1, mapFK);
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statement.setString(2, name);
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statement.setBinaryStream(3, inputStream);
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statement.executeUpdate();
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}, 2);
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});
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}
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@Override
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public Optional<CompressedInputStream> readMapTile(String mapId, int lod, Vector2i tile) throws IOException {
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Compression compression = lod == 0 ? this.hiresCompression : Compression.NONE;
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try {
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byte[] data = recoveringConnection(connection -> {
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ResultSet result = executeQuery(connection,
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this.dialect.readMapTile(),
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mapId,
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lod,
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tile.getX(),
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tile.getY(),
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compression.getTypeId()
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);
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if (result.next()) {
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return result.getBytes(1);
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} else {
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return null;
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}
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}, 2);
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if (data == null) {
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return Optional.empty();
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}
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InputStream inputStream = new ByteArrayInputStream(data);
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return Optional.of(new CompressedInputStream(inputStream, compression));
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} catch (SQLException ex) {
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throw new IOException(ex);
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}
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}
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@Override
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public Optional<InputStream> readMeta(String mapId, String name) throws IOException {
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try {
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byte[] data = recoveringConnection(connection -> {
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ResultSet result = executeQuery(connection,
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this.dialect.readMeta(),
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mapId,
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escapeMetaName(name)
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);
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if (result.next()) {
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return result.getBytes(1);
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} else {
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return null;
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}
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}, 2);
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if (data == null) {
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return Optional.empty();
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}
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InputStream inputStream = new ByteArrayInputStream(data);
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return Optional.of(inputStream);
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} catch (SQLException ex) {
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throw new IOException(ex);
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}
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}
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}
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