StandardBatchInsert.java in embulk-output-jdbc-0.4.2

- old
+ new
@@ -1,200 +1,200 @@
-package org.embulk.output.jdbc;
-
-import java.util.List;
-import java.util.Calendar;
-import java.io.IOException;
-import java.math.BigDecimal;
-import java.sql.PreparedStatement;
-import java.sql.SQLException;
-import java.sql.Date;
-import java.sql.Time;
-import com.google.common.base.Optional;
-import org.slf4j.Logger;
-import org.embulk.spi.time.Timestamp;
-import org.embulk.spi.Exec;
-
-public class StandardBatchInsert
-        implements BatchInsert
-{
-    private final Logger logger = Exec.getLogger(StandardBatchInsert.class);
-
-    private final JdbcOutputConnector connector;
-    private final Optional<List<String>> mergeKeys;
-
-    private JdbcOutputConnection connection;
-    private PreparedStatement batch;
-    private int index;
-    private int batchWeight;
-    private int batchRows;
-    private long totalRows;
-
-    public StandardBatchInsert(JdbcOutputConnector connector, Optional<List<String>> mergeKeys) throws IOException, SQLException
-    {
-        this.connector = connector;
-        this.mergeKeys = mergeKeys;
-    }
-
-    public void prepare(String loadTable, JdbcSchema insertSchema) throws SQLException
-    {
-        this.connection = connector.connect(true);
-        this.index = 1;  // PreparedStatement index begings from 1
-        this.batchRows = 0;
-        this.totalRows = 0;
-        this.batch = prepareStatement(loadTable, insertSchema);
-        batch.clearBatch();
-    }
-
-    protected PreparedStatement prepareStatement(String loadTable, JdbcSchema insertSchema) throws SQLException
-    {
-        return connection.prepareBatchInsertStatement(loadTable, insertSchema, mergeKeys);
-    }
-
-    public int getBatchWeight()
-    {
-        return batchWeight;
-    }
-
-    public void add() throws IOException, SQLException
-    {
-        batch.addBatch();
-        index = 1;  // PreparedStatement index begins from 1
-        batchRows++;
-        batchWeight += 32;  // add weight as overhead of each rows
-    }
-
-    public void close() throws IOException, SQLException
-    {
-        // caller should close the connection
-    }
-
-    public void flush() throws IOException, SQLException
-    {
-        logger.info(String.format("Loading %,d rows", batchRows));
-        long startTime = System.currentTimeMillis();
-        batch.executeBatch();  // here can't use returned value because MySQL Connector/J returns SUCCESS_NO_INFO as a batch result
-        double seconds = (System.currentTimeMillis() - startTime) / 1000.0;
-
-        totalRows += batchRows;
-        logger.info(String.format("> %.2f seconds (loaded %,d rows in total)", seconds, totalRows));
-        batch.clearBatch();
-        batchRows = 0;
-        batchWeight = 0;
-    }
-
-    public void finish() throws IOException, SQLException
-    {
-        if (getBatchWeight() != 0) {
-            flush();
-        }
-    }
-
-    public void setNull(int sqlType) throws IOException, SQLException
-    {
-        batch.setNull(index, sqlType);
-        nextColumn(0);
-    }
-
-    public void setBoolean(boolean v) throws IOException, SQLException
-    {
-        batch.setBoolean(index, v);
-        nextColumn(1);
-    }
-
-    public void setByte(byte v) throws IOException, SQLException
-    {
-        batch.setByte(index, v);
-        nextColumn(1);
-    }
-
-    public void setShort(short v) throws IOException, SQLException
-    {
-        batch.setShort(index, v);
-        nextColumn(2);
-    }
-
-    public void setInt(int v) throws IOException, SQLException
-    {
-        batch.setInt(index, v);
-        nextColumn(4);
-    }
-
-    public void setLong(long v) throws IOException, SQLException
-    {
-        batch.setLong(index, v);
-        nextColumn(8);
-    }
-
-    public void setFloat(float v) throws IOException, SQLException
-    {
-        batch.setFloat(index, v);
-        nextColumn(4);
-    }
-
-    public void setDouble(double v) throws IOException, SQLException
-    {
-        batch.setDouble(index, v);
-        nextColumn(8);
-    }
-
-    public void setBigDecimal(BigDecimal v) throws IOException, SQLException
-    {
-        // use estimated number of necessary bytes + 8 byte for the weight
-        // assuming one place needs 4 bits. ceil(v.precision() / 2.0) + 8
-        batch.setBigDecimal(index, v);
-        nextColumn((v.precision() & ~2) / 2 + 8);
-    }
-
-    public void setString(String v) throws IOException, SQLException
-    {
-        batch.setString(index, v);
-        // estimate all chracters use 2 bytes; almost enough for the worst case
-        nextColumn(v.length() * 2 + 4);
-    }
-
-    public void setNString(String v) throws IOException, SQLException
-    {
-        batch.setNString(index, v);
-        // estimate all chracters use 2 bytes; almost enough for the worst case
-        nextColumn(v.length() * 2 + 4);
-    }
-
-    public void setBytes(byte[] v) throws IOException, SQLException
-    {
-        batch.setBytes(index, v);
-        nextColumn(v.length + 4);
-    }
-
-    public void setSqlDate(Timestamp v, Calendar cal) throws IOException, SQLException
-    {
-        // JavaDoc of java.sql.Time says:
-        // >> To conform with the definition of SQL DATE, the millisecond values wrapped by a java.sql.Date instance must be 'normalized' by setting the hours, minutes, seconds, and milliseconds to zero in the particular time zone with which the instance is associated.
-        cal.setTimeInMillis(v.getEpochSecond() * 1000);
-        cal.set(Calendar.SECOND, 0);
-        cal.set(Calendar.MINUTE, 0);
-        cal.set(Calendar.HOUR_OF_DAY, 0);
-        Date normalized = new Date(cal.getTimeInMillis());
-        batch.setDate(index, normalized, cal);
-        nextColumn(32);
-    }
-
-    public void setSqlTime(Timestamp v, Calendar cal) throws IOException, SQLException
-    {
-        Time t = new Time(v.toEpochMilli());
-        batch.setTime(index, t, cal);
-        nextColumn(32);
-    }
-
-    public void setSqlTimestamp(Timestamp v, Calendar cal) throws IOException, SQLException
-    {
-        java.sql.Timestamp t = new java.sql.Timestamp(v.toEpochMilli());
-        t.setNanos(v.getNano());
-        batch.setTimestamp(index, t, cal);
-        nextColumn(32);
-    }
-
-    private void nextColumn(int weight)
-    {
-        index++;
-        batchWeight += weight + 4;  // add weight as overhead of each columns
-    }
-}
+package org.embulk.output.jdbc;
+
+import java.util.List;
+import java.util.Calendar;
+import java.io.IOException;
+import java.math.BigDecimal;
+import java.sql.PreparedStatement;
+import java.sql.SQLException;
+import java.sql.Date;
+import java.sql.Time;
+import com.google.common.base.Optional;
+import org.slf4j.Logger;
+import org.embulk.spi.time.Timestamp;
+import org.embulk.spi.Exec;
+
+public class StandardBatchInsert
+        implements BatchInsert
+{
+    private final Logger logger = Exec.getLogger(StandardBatchInsert.class);
+
+    private final JdbcOutputConnector connector;
+    private final Optional<List<String>> mergeKeys;
+
+    private JdbcOutputConnection connection;
+    private PreparedStatement batch;
+    private int index;
+    private int batchWeight;
+    private int batchRows;
+    private long totalRows;
+
+    public StandardBatchInsert(JdbcOutputConnector connector, Optional<List<String>> mergeKeys) throws IOException, SQLException
+    {
+        this.connector = connector;
+        this.mergeKeys = mergeKeys;
+    }
+
+    public void prepare(String loadTable, JdbcSchema insertSchema) throws SQLException
+    {
+        this.connection = connector.connect(true);
+        this.index = 1;  // PreparedStatement index begings from 1
+        this.batchRows = 0;
+        this.totalRows = 0;
+        this.batch = prepareStatement(loadTable, insertSchema);
+        batch.clearBatch();
+    }
+
+    protected PreparedStatement prepareStatement(String loadTable, JdbcSchema insertSchema) throws SQLException
+    {
+        return connection.prepareBatchInsertStatement(loadTable, insertSchema, mergeKeys);
+    }
+
+    public int getBatchWeight()
+    {
+        return batchWeight;
+    }
+
+    public void add() throws IOException, SQLException
+    {
+        batch.addBatch();
+        index = 1;  // PreparedStatement index begins from 1
+        batchRows++;
+        batchWeight += 32;  // add weight as overhead of each rows
+    }
+
+    public void close() throws IOException, SQLException
+    {
+        // caller should close the connection
+    }
+
+    public void flush() throws IOException, SQLException
+    {
+        logger.info(String.format("Loading %,d rows", batchRows));
+        long startTime = System.currentTimeMillis();
+        batch.executeBatch();  // here can't use returned value because MySQL Connector/J returns SUCCESS_NO_INFO as a batch result
+        double seconds = (System.currentTimeMillis() - startTime) / 1000.0;
+
+        totalRows += batchRows;
+        logger.info(String.format("> %.2f seconds (loaded %,d rows in total)", seconds, totalRows));
+        batch.clearBatch();
+        batchRows = 0;
+        batchWeight = 0;
+    }
+
+    public void finish() throws IOException, SQLException
+    {
+        if (getBatchWeight() != 0) {
+            flush();
+        }
+    }
+
+    public void setNull(int sqlType) throws IOException, SQLException
+    {
+        batch.setNull(index, sqlType);
+        nextColumn(0);
+    }
+
+    public void setBoolean(boolean v) throws IOException, SQLException
+    {
+        batch.setBoolean(index, v);
+        nextColumn(1);
+    }
+
+    public void setByte(byte v) throws IOException, SQLException
+    {
+        batch.setByte(index, v);
+        nextColumn(1);
+    }
+
+    public void setShort(short v) throws IOException, SQLException
+    {
+        batch.setShort(index, v);
+        nextColumn(2);
+    }
+
+    public void setInt(int v) throws IOException, SQLException
+    {
+        batch.setInt(index, v);
+        nextColumn(4);
+    }
+
+    public void setLong(long v) throws IOException, SQLException
+    {
+        batch.setLong(index, v);
+        nextColumn(8);
+    }
+
+    public void setFloat(float v) throws IOException, SQLException
+    {
+        batch.setFloat(index, v);
+        nextColumn(4);
+    }
+
+    public void setDouble(double v) throws IOException, SQLException
+    {
+        batch.setDouble(index, v);
+        nextColumn(8);
+    }
+
+    public void setBigDecimal(BigDecimal v) throws IOException, SQLException
+    {
+        // use estimated number of necessary bytes + 8 byte for the weight
+        // assuming one place needs 4 bits. ceil(v.precision() / 2.0) + 8
+        batch.setBigDecimal(index, v);
+        nextColumn((v.precision() & ~2) / 2 + 8);
+    }
+
+    public void setString(String v) throws IOException, SQLException
+    {
+        batch.setString(index, v);
+        // estimate all chracters use 2 bytes; almost enough for the worst case
+        nextColumn(v.length() * 2 + 4);
+    }
+
+    public void setNString(String v) throws IOException, SQLException
+    {
+        batch.setNString(index, v);
+        // estimate all chracters use 2 bytes; almost enough for the worst case
+        nextColumn(v.length() * 2 + 4);
+    }
+
+    public void setBytes(byte[] v) throws IOException, SQLException
+    {
+        batch.setBytes(index, v);
+        nextColumn(v.length + 4);
+    }
+
+    public void setSqlDate(Timestamp v, Calendar cal) throws IOException, SQLException
+    {
+        // JavaDoc of java.sql.Time says:
+        // >> To conform with the definition of SQL DATE, the millisecond values wrapped by a java.sql.Date instance must be 'normalized' by setting the hours, minutes, seconds, and milliseconds to zero in the particular time zone with which the instance is associated.
+        cal.setTimeInMillis(v.getEpochSecond() * 1000);
+        cal.set(Calendar.SECOND, 0);
+        cal.set(Calendar.MINUTE, 0);
+        cal.set(Calendar.HOUR_OF_DAY, 0);
+        Date normalized = new Date(cal.getTimeInMillis());
+        batch.setDate(index, normalized, cal);
+        nextColumn(32);
+    }
+
+    public void setSqlTime(Timestamp v, Calendar cal) throws IOException, SQLException
+    {
+        Time t = new Time(v.toEpochMilli());
+        batch.setTime(index, t, cal);
+        nextColumn(32);
+    }
+
+    public void setSqlTimestamp(Timestamp v, Calendar cal) throws IOException, SQLException
+    {
+        java.sql.Timestamp t = new java.sql.Timestamp(v.toEpochMilli());
+        t.setNanos(v.getNano());
+        batch.setTimestamp(index, t, cal);
+        nextColumn(32);
+    }
+
+    private void nextColumn(int weight)
+    {
+        index++;
+        batchWeight += weight + 4;  // add weight as overhead of each columns
+    }
+}