// Create PTable based on KeyValues from scan
Cell keyValue = results.get(0);
byte[] keyBuffer = keyValue.getRowArray();
int keyLength = keyValue.getRowLength();
int keyOffset = keyValue.getRowOffset();
PName tenantId = newPName(keyBuffer, keyOffset, keyLength);
int tenantIdLength = (tenantId == null) ? 0 : tenantId.getBytes().length;
if (tenantIdLength == 0) {
tenantId = null;
}
PName schemaName = newPName(keyBuffer, keyOffset+tenantIdLength+1, keyLength);
int schemaNameLength = schemaName.getBytes().length;
int tableNameLength = keyLength - schemaNameLength - 1 - tenantIdLength - 1;
byte[] tableNameBytes = new byte[tableNameLength];
System.arraycopy(keyBuffer, keyOffset + schemaNameLength + 1 + tenantIdLength + 1,
tableNameBytes, 0, tableNameLength);
PName tableName = PNameFactory.newName(tableNameBytes);
int offset = tenantIdLength + schemaNameLength + tableNameLength + 3;
// This will prevent the client from continually looking for the current
// table when we know that there will never be one since we disallow updates
// unless the table is the latest
// If we already have a table newer than the one we just found and
// the client timestamp is less that the existing table time stamp,
// bump up the timeStamp to right before the client time stamp, since
// we know it can't possibly change.
long timeStamp = keyValue.getTimestamp();
// long timeStamp = tableTimeStamp > keyValue.getTimestamp() &&
// clientTimeStamp < tableTimeStamp
// ? clientTimeStamp-1
// : keyValue.getTimestamp();
int i = 0;
int j = 0;
while (i < results.size() && j < TABLE_KV_COLUMNS.size()) {
Cell kv = results.get(i);
Cell searchKv = TABLE_KV_COLUMNS.get(j);
int cmp =
Bytes.compareTo(kv.getQualifierArray(), kv.getQualifierOffset(),
kv.getQualifierLength(), searchKv.getQualifierArray(),
searchKv.getQualifierOffset(), searchKv.getQualifierLength());
if (cmp == 0) {
timeStamp = Math.max(timeStamp, kv.getTimestamp()); // Find max timestamp of table
// header row
tableKeyValues[j++] = kv;
i++;
} else if (cmp > 0) {
timeStamp = Math.max(timeStamp, kv.getTimestamp());
tableKeyValues[j++] = null;
} else {
i++; // shouldn't happen - means unexpected KV in system table header row
}
}
// TABLE_TYPE, TABLE_SEQ_NUM and COLUMN_COUNT are required.
if (tableKeyValues[TABLE_TYPE_INDEX] == null || tableKeyValues[TABLE_SEQ_NUM_INDEX] == null
|| tableKeyValues[COLUMN_COUNT_INDEX] == null) {
throw new IllegalStateException(
"Didn't find expected key values for table row in metadata row");
}
Cell tableTypeKv = tableKeyValues[TABLE_TYPE_INDEX];
PTableType tableType =
PTableType
.fromSerializedValue(tableTypeKv.getValueArray()[tableTypeKv.getValueOffset()]);
Cell tableSeqNumKv = tableKeyValues[TABLE_SEQ_NUM_INDEX];
long tableSeqNum =
PDataType.LONG.getCodec().decodeLong(tableSeqNumKv.getValueArray(),
tableSeqNumKv.getValueOffset(), SortOrder.getDefault());
Cell columnCountKv = tableKeyValues[COLUMN_COUNT_INDEX];
int columnCount =
PDataType.INTEGER.getCodec().decodeInt(columnCountKv.getValueArray(),
columnCountKv.getValueOffset(), SortOrder.getDefault());
Cell pkNameKv = tableKeyValues[PK_NAME_INDEX];
PName pkName =
pkNameKv != null ? newPName(pkNameKv.getValueArray(), pkNameKv.getValueOffset(),
pkNameKv.getValueLength()) : null;
Cell saltBucketNumKv = tableKeyValues[SALT_BUCKETS_INDEX];
Integer saltBucketNum =
saltBucketNumKv != null ? (Integer) PDataType.INTEGER.getCodec().decodeInt(
saltBucketNumKv.getValueArray(), saltBucketNumKv.getValueOffset(), SortOrder.getDefault()) : null;
Cell dataTableNameKv = tableKeyValues[DATA_TABLE_NAME_INDEX];
PName dataTableName =
dataTableNameKv != null ? newPName(dataTableNameKv.getValueArray(),
dataTableNameKv.getValueOffset(), dataTableNameKv.getValueLength()) : null;
Cell indexStateKv = tableKeyValues[INDEX_STATE_INDEX];
PIndexState indexState =
indexStateKv == null ? null : PIndexState.fromSerializedValue(indexStateKv
.getValueArray()[indexStateKv.getValueOffset()]);
Cell immutableRowsKv = tableKeyValues[IMMUTABLE_ROWS_INDEX];
boolean isImmutableRows =
immutableRowsKv == null ? false : (Boolean) PDataType.BOOLEAN.toObject(
immutableRowsKv.getValueArray(), immutableRowsKv.getValueOffset(),
immutableRowsKv.getValueLength());
Cell defaultFamilyNameKv = tableKeyValues[DEFAULT_COLUMN_FAMILY_INDEX];
PName defaultFamilyName = defaultFamilyNameKv != null ? newPName(defaultFamilyNameKv.getValueArray(), defaultFamilyNameKv.getValueOffset(), defaultFamilyNameKv.getValueLength()) : null;
Cell viewStatementKv = tableKeyValues[VIEW_STATEMENT_INDEX];
String viewStatement = viewStatementKv != null ? (String)PDataType.VARCHAR.toObject(viewStatementKv.getValueArray(), viewStatementKv.getValueOffset(), viewStatementKv.getValueLength()) : null;
Cell disableWALKv = tableKeyValues[DISABLE_WAL_INDEX];
boolean disableWAL = disableWALKv == null ? PTable.DEFAULT_DISABLE_WAL : Boolean.TRUE.equals(PDataType.BOOLEAN.toObject(disableWALKv.getValueArray(), disableWALKv.getValueOffset(), disableWALKv.getValueLength()));
Cell multiTenantKv = tableKeyValues[MULTI_TENANT_INDEX];
boolean multiTenant = multiTenantKv == null ? false : Boolean.TRUE.equals(PDataType.BOOLEAN.toObject(multiTenantKv.getValueArray(), multiTenantKv.getValueOffset(), multiTenantKv.getValueLength()));
Cell viewTypeKv = tableKeyValues[VIEW_TYPE_INDEX];
ViewType viewType = viewTypeKv == null ? null : ViewType.fromSerializedValue(viewTypeKv.getValueArray()[viewTypeKv.getValueOffset()]);
Cell viewIndexIdKv = tableKeyValues[VIEW_INDEX_ID_INDEX];
Short viewIndexId = viewIndexIdKv == null ? null : (Short)MetaDataUtil.getViewIndexIdDataType().getCodec().decodeShort(viewIndexIdKv.getValueArray(), viewIndexIdKv.getValueOffset(), SortOrder.getDefault());
Cell indexTypeKv = tableKeyValues[INDEX_TYPE_INDEX];
IndexType indexType = indexTypeKv == null ? null : IndexType.fromSerializedValue(indexTypeKv.getValueArray()[indexTypeKv.getValueOffset()]);
List<PColumn> columns = Lists.newArrayListWithExpectedSize(columnCount);
List<PTable> indexes = new ArrayList<PTable>();
List<PName> physicalTables = new ArrayList<PName>();
while (true) {
results.clear();
scanner.next(results);
if (results.isEmpty()) {
break;
}
Cell colKv = results.get(LINK_TYPE_INDEX);
int colKeyLength = colKv.getRowLength();
PName colName = newPName(colKv.getRowArray(), colKv.getRowOffset() + offset, colKeyLength-offset);
int colKeyOffset = offset + colName.getBytes().length + 1;
PName famName = newPName(colKv.getRowArray(), colKv.getRowOffset() + colKeyOffset, colKeyLength-colKeyOffset);
if (colName.getString().isEmpty() && famName != null) {
LinkType linkType = LinkType.fromSerializedValue(colKv.getValueArray()[colKv.getValueOffset()]);
if (linkType == LinkType.INDEX_TABLE) {
addIndexToTable(tenantId, schemaName, famName, tableName, clientTimeStamp, indexes);
} else if (linkType == LinkType.PHYSICAL_TABLE) {