/*
public static String getFieldNames(List<byte[]> fields){
String str="";
for (byte[] field :fields) {
FieldPacket fieldPacket = new FieldPacket();
fieldPacket.read(field);
str+=ByteUtil.getString(fieldPacket.name)+",";
}
return str;
}
public static String getFieldName(byte[] field){
FieldPacket fieldPacket = new FieldPacket();
fieldPacket.read(field);
return ByteUtil.getString(fieldPacket.name);
}
*/
@Override
public boolean onRowData(String dataNode, byte[] rowData) {
int fid = this.ctx.getFieldIndex(fields, joinkey);
String id = ResultSetUtil.getColumnValAsString(rowData, fields, 0); // 主键，默认id
String nid = ResultSetUtil.getColumnValAsString(rowData, fields, fid);
// 放入结果集
// rows.put(id, rowData);
ctx.putDBRow(id, nid, rowData, fid);
return false;
}
@Override
public boolean onRowData(String dataNode, byte[] rowData) {
RowDataPacket rowDataPkgold = ResultSetUtil.parseRowData(rowData, bfields);
// 获取Id字段，
String id = ByteUtil.getString(rowDataPkgold.fieldValues.get(joinR));
// 查找ID对应的A表的记录
byte[] arow = getRow(id, joinL); // arows.remove(id);
while (arow != null) {
RowDataPacket rowDataPkg = ResultSetUtil.parseRowData(arow, afields); // ctx.getAllFields());
for (int i = 1; i < rowDataPkgold.fieldCount; i++) {
// 设置b.name 字段
byte[] bname = rowDataPkgold.fieldValues.get(i);
rowDataPkg.add(bname);
rowDataPkg.addFieldCount(1);
}
// RowData(rowDataPkg);
ctx.writeRow(rowDataPkg);
arow = getRow(id, joinL);
}
return false;
}
@Override
public void onHeader(String dataNode, byte[] header, List<byte[]> bfields) {
this.bfields = bfields;
joinR = this.ctx.getFieldIndex(bfields, joinRkey);
ctx.writeHeader(dataNode, afields, bfields);
}
@Override
public void finished(String dataNode, boolean failed) {
ctx.endJobInput(dataNode, failed);
}
@Override
public void onHeader(String dataNode, byte[] header, List<byte[]> fields) {
this.fields = fields;
ctx.putDBFields(fields);
}