org.embulk.input.tsurugidb.getter.StringColumnGetter Maven / Gradle / Ivy
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Selects records from a table.
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package org.embulk.input.tsurugidb.getter;
import java.io.IOException;
import java.util.List;
import org.embulk.spi.Column;
import org.embulk.spi.PageBuilder;
import org.embulk.spi.type.Type;
import org.embulk.spi.type.Types;
import org.embulk.util.json.JsonParseException;
import org.embulk.util.json.JsonParser;
import org.msgpack.value.Value;
import com.fasterxml.jackson.databind.JsonNode;
import com.tsurugidb.sql.proto.SqlRequest.Parameter;
import com.tsurugidb.tsubakuro.exception.ServerException;
import com.tsurugidb.tsubakuro.kvs.Record;
import com.tsurugidb.tsubakuro.kvs.RecordBuffer;
import com.tsurugidb.tsubakuro.sql.Parameters;
import com.tsurugidb.tsubakuro.sql.ResultSet;
// https://github.com/embulk/embulk-input-jdbc/blob/master/embulk-input-jdbc/src/main/java/org/embulk/input/jdbc/getter/StringColumnGetter.java
public class StringColumnGetter extends AbstractColumnGetter {
protected final JsonParser jsonParser = new JsonParser();
protected String value;
public StringColumnGetter(PageBuilder to, Type toType) {
super(to, toType);
}
@Override
protected void fetch(ResultSet from) throws IOException, ServerException, InterruptedException {
value = from.fetchCharacterValue();
}
@Override
protected void fetch(Record from, String name) {
value = from.getCharacter(name);
}
@Override
protected Type getDefaultToType() {
return Types.STRING;
}
@Override
public void longColumn(Column column) {
long l;
try {
l = Long.parseLong(value);
} catch (NumberFormatException e) {
super.longColumn(column);
return;
}
to.setLong(column, l);
}
@Override
public void doubleColumn(Column column) {
double d;
try {
d = Double.parseDouble(value);
} catch (NumberFormatException e) {
super.doubleColumn(column);
return;
}
to.setDouble(column, d);
}
@Override
@SuppressWarnings("deprecation")
public void jsonColumn(Column column) {
Value v;
try {
v = jsonParser.parse(value);
} catch (JsonParseException e) {
super.jsonColumn(column);
return;
}
to.setJson(column, v);
}
@Override
public void stringColumn(Column column) {
to.setString(column, value);
}
@Override
public JsonNode encodeToJson() {
return jsonNodeFactory.textNode(value);
}
@Override
public void decodeFromJsonTo(List toStatement, String toIndex, JsonNode fromValue) {
String v = fromValue.asText();
var parameter = Parameters.of(toIndex, v);
toStatement.add(parameter);
}
@Override
public void decodeFromJsonTo(RecordBuffer toRecord, String toIndex, JsonNode fromValue) {
String v = fromValue.asText();
toRecord.add(toIndex, v);
}
}
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