/**
* Joins array elements to string.
*
* @param arr Array.
* @return String.
*/
@Nullable
public static String compactArray(Object[] arr) {
if (arr == null || arr.length == 0) return null;
String sep = ", ";
StringBuilder sb = new StringBuilder();
for (Object s : arr) sb.append(s).append(sep);
if (sb.length() > 0) sb.setLength(sb.length() - sep.length());
return U.compact(sb.toString());
}
static void toHexString(String header, ByteBuffer buf) {
sb.delete(0, sb.length());
for (int index = 0; index < buf.limit(); index++) {
String hex = Integer.toHexString(0x0100 + (buf.get(index) & 0x00FF)).substring(1);
sb.append((hex.length() < 2 ? "0" : "") + hex + " ");
}
LOG.debug(
"hex->"
+ header
+ ": position,limit,capacity "
+ buf.position()
+ ","
+ buf.limit()
+ ","
+ buf.capacity());
LOG.debug("hex->" + sb.toString());
}
public static int serDiccGroupByToWriter(
ResultSet rs,
Writer writer,
int maxRows,
String idPor,
String[] idAcumulados,
String campoAcumuladoNombre) {
int rowsCount = 0;
try {
ArrayList<String> acumulado = null;
String idActual = null;
StringBuilder reg = null;
reg = new StringBuilder();
String value = "";
if (rs != null) {
ResultSetMetaData rsm = rs.getMetaData();
int countCol = rsm.getColumnCount();
String name = "";
for (int i = 1; i <= countCol; i++) {
name = rsm.getColumnName(i);
reg.append(name.toLowerCase()).append("\t");
}
reg.append(campoAcumuladoNombre);
writer.write(reg.toString() + EOL);
while (rs.next()) {
if (idActual == null) {
reg = new StringBuilder();
acumulado = new ArrayList<String>();
idActual = rs.getString(idPor);
for (int i = 1; i <= countCol; i++) {
reg.append(rs.getString(i)).append("\t");
}
for (String id : idAcumulados) {
value = rs.getString(id);
if (!rs.wasNull()) {
acumulado.add(rs.getString(id));
}
}
} else {
if (idActual.equals(rs.getString(idPor))) {
for (String id : idAcumulados) {
value = rs.getString(id);
if (!rs.wasNull()) {
acumulado.add(rs.getString(id));
}
}
} else {
if (acumulado.size() > 0) {
for (String str : acumulado) {
reg.append(str).append(",");
}
reg.deleteCharAt(reg.length() - 1);
}
reg.append(EOL);
writer.write(reg.toString());
rowsCount++;
if (maxRows == rowsCount) {
break;
}
idActual = rs.getString(idPor);
reg = new StringBuilder();
acumulado = new ArrayList<String>();
for (int i = 1; i <= countCol; i++) {
reg.append(rs.getString(i)).append("\t");
}
for (String id : idAcumulados) {
value = rs.getString(id);
if (!rs.wasNull()) {
acumulado.add(rs.getString(id));
}
}
}
}
}
if (acumulado.size() > 0) {
for (String str : acumulado) {
reg.append(str).append(",");
}
reg.deleteCharAt(reg.length() - 1);
}
reg.append(EOL);
writer.write(reg.toString());
rowsCount++;
}
} catch (SQLException e) {
logm("ERR", 1, "Error al escribir registros", e);
} catch (IOException e) {
logm("ERR", 1, "Error al escribir registros", e);
}
return rowsCount;
}