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There is a newer version: 2.7.7

/*
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 */
package org.redkalex.source.pgsql;

import static org.redkalex.source.pgsql.PgClientCodec.*;

import java.nio.ByteBuffer;
import org.redkale.source.SourceException;
import org.redkale.util.ByteArray;

/** @author zhangjx */
public class PgRespRowDescDecoder extends PgRespDecoder {

    public static final PgRespRowDescDecoder instance = new PgRespRowDescDecoder();

    private PgRespRowDescDecoder() {}

    @Override
    public byte messageid() {
        return MESSAGE_TYPE_ROW_DESCRIPTION; // 'T'
    }

    @Override
    public PgRowDesc read(
            PgClientConnection conn,
            ByteBuffer buffer,
            final int length,
            ByteArray array,
            PgClientRequest request,
            PgResultSet dataset) {
        PgRowColumn[] columns = new PgRowColumn[buffer.getShort()];
        PgColumnFormat[] formats = new PgColumnFormat[columns.length];
        for (int i = 0; i < columns.length; i++) {
            String name = PgClientCodec.readUTF8String(buffer, array);
            buffer.position(buffer.position() + 6);
            int oid = buffer.getInt();
            buffer.position(buffer.position() + 8);
            columns[i] = new PgRowColumn(name, oid);
            formats[i] = PgColumnFormat.valueOf(oid);
            if (formats[i].decoder() == null) {
                throw new SourceException("Unsupported data decode ColumnFormat: " + formats[i]);
            }
        }
        return new PgRowDesc(columns, formats);
    }
}