@Override
public void createTable(Table table) throws HiveMetastoreException {
if (!existsDb(table.getDbName())) {
throw new HiveMetastoreException("DB " + table.getDbName() + " does not exist!");
}
HiveObjectSpec tableSpec = new HiveObjectSpec(table.getDbName(), table.getTableName());
if (specToTable.containsKey(tableSpec)) {
throw new HiveMetastoreException("Table already exists: " + tableSpec);
}
specToTable.put(tableSpec, table);
}
@Override
public synchronized void createTable(Table table) {
SchemaTableName schemaTableName = new SchemaTableName(table.getDbName(), table.getTableName());
Table tableCopy = table.deepCopy();
if (tableCopy.getSd() == null) {
tableCopy.setSd(new StorageDescriptor());
} else if (tableCopy.getSd().getLocation() != null) {
File directory = new File(new Path(tableCopy.getSd().getLocation()).toUri());
checkArgument(directory.exists(), "Table directory does not exist");
checkArgument(
isParentDir(directory, baseDirectory),
"Table directory must be inside of the metastore base directory");
}
if (relations.putIfAbsent(schemaTableName, tableCopy) != null) {
throw new TableAlreadyExistsException(schemaTableName);
}
if (tableCopy.getTableType().equals(TableType.VIRTUAL_VIEW.name())) {
views.put(schemaTableName, tableCopy);
}
PrincipalPrivilegeSet privileges = table.getPrivileges();
if (privileges != null) {
for (Entry<String, List<PrivilegeGrantInfo>> entry :
privileges.getUserPrivileges().entrySet()) {
String user = entry.getKey();
Set<HivePrivilegeInfo> userPrivileges =
entry
.getValue()
.stream()
.map(HivePrivilegeInfo::parsePrivilege)
.flatMap(Collection::stream)
.collect(toImmutableSet());
setTablePrivileges(user, USER, table.getDbName(), table.getTableName(), userPrivileges);
}
for (Entry<String, List<PrivilegeGrantInfo>> entry :
privileges.getRolePrivileges().entrySet()) {
String role = entry.getKey();
Set<HivePrivilegeInfo> rolePrivileges =
entry
.getValue()
.stream()
.map(HivePrivilegeInfo::parsePrivilege)
.flatMap(Collection::stream)
.collect(toImmutableSet());
setTablePrivileges(role, ROLE, table.getDbName(), table.getTableName(), rolePrivileges);
}
}
}
@Override
public void alterTable(String databaseName, String tableName, Table newTable) {
SchemaTableName oldName = new SchemaTableName(databaseName, tableName);
SchemaTableName newName = new SchemaTableName(newTable.getDbName(), newTable.getTableName());
// if the name did not change, this is a simple schema change
if (oldName.equals(newName)) {
if (relations.replace(oldName, newTable) == null) {
throw new TableNotFoundException(oldName);
}
return;
}
// remove old table definition and add the new one
// TODO: use locking to do this properly
Table table = relations.get(oldName);
if (table == null) {
throw new TableNotFoundException(oldName);
}
if (relations.putIfAbsent(newName, newTable) != null) {
throw new TableAlreadyExistsException(newName);
}
relations.remove(oldName);
}
public static Table fromMetastoreApiTable(org.apache.hadoop.hive.metastore.api.Table table) {
StorageDescriptor storageDescriptor = table.getSd();
if (storageDescriptor == null) {
throw new PrestoException(HIVE_INVALID_METADATA, "Table is missing storage descriptor");
}
Table.Builder tableBuilder =
Table.builder()
.setDatabaseName(table.getDbName())
.setTableName(table.getTableName())
.setOwner(nullToEmpty(table.getOwner()))
.setTableType(table.getTableType())
.setDataColumns(
storageDescriptor
.getCols()
.stream()
.map(MetastoreUtil::fromMetastoreApiFieldSchema)
.collect(toList()))
.setPartitionColumns(
table
.getPartitionKeys()
.stream()
.map(MetastoreUtil::fromMetastoreApiFieldSchema)
.collect(toList()))
.setParameters(
table.getParameters() == null ? ImmutableMap.of() : table.getParameters())
.setViewOriginalText(Optional.ofNullable(emptyToNull(table.getViewOriginalText())))
.setViewExpandedText(Optional.ofNullable(emptyToNull(table.getViewExpandedText())));
fromMetastoreApiStorageDescriptor(
storageDescriptor, tableBuilder.getStorageBuilder(), table.getTableName());
return tableBuilder.build();
}
/**
* Removes the cache directive associated with the table from HDFS, uncaching all data. Also
* updates the table's metadata. No-op if the table is not cached.
*/
public static void uncacheTbl(org.apache.hadoop.hive.metastore.api.Table table)
throws ImpalaRuntimeException {
Preconditions.checkNotNull(table);
LOG.debug("Uncaching table: " + table.getDbName() + "." + table.getTableName());
Long id = getCacheDirectiveId(table.getParameters());
if (id == null) return;
HdfsCachingUtil.removeDirective(id);
table.getParameters().remove(CACHE_DIR_ID_PROP_NAME);
table.getParameters().remove(CACHE_DIR_REPLICATION_PROP_NAME);
}
@Override
public void alterTable(String dbName, String tableName, Table table)
throws HiveMetastoreException {
HiveObjectSpec existingTableSpec = new HiveObjectSpec(dbName, tableName);
HiveObjectSpec newTableSpec = new HiveObjectSpec(table.getDbName(), table.getTableName());
if (!specToTable.containsKey(existingTableSpec)) {
throw new HiveMetastoreException("Unknown table: " + existingTableSpec);
}
Table removedTable = specToTable.remove(existingTableSpec);
if (removedTable == null) {
throw new RuntimeException("Shouldn't happen!");
}
specToTable.put(newTableSpec, table);
}
@Override
public void createTable(Table table) {
try {
retry()
.stopOn(
AlreadyExistsException.class,
InvalidObjectException.class,
MetaException.class,
NoSuchObjectException.class)
.stopOnIllegalExceptions()
.run(
"createTable",
stats
.getCreateTable()
.wrap(
() -> {
try (HiveMetastoreClient client = clientProvider.createMetastoreClient()) {
client.createTable(table);
}
return null;
}));
} catch (AlreadyExistsException e) {
throw new TableAlreadyExistsException(
new SchemaTableName(table.getDbName(), table.getTableName()));
} catch (NoSuchObjectException e) {
throw new SchemaNotFoundException(table.getDbName());
} catch (TException e) {
throw new PrestoException(HIVE_METASTORE_ERROR, e);
} catch (Exception e) {
if (e instanceof InterruptedException) {
Thread.currentThread().interrupt();
}
throw Throwables.propagate(e);
} finally {
invalidateTable(table.getDbName(), table.getTableName());
}
}
// This method is completely copied from Hive's HBaseStorageHandler.java.
private String getHBaseTableName(org.apache.hadoop.hive.metastore.api.Table tbl) {
// Give preference to TBLPROPERTIES over SERDEPROPERTIES
// (really we should only use TBLPROPERTIES, so this is just
// for backwards compatibility with the original specs).
String tableName = tbl.getParameters().get(HBaseSerDe.HBASE_TABLE_NAME);
if (tableName == null) {
tableName = tbl.getSd().getSerdeInfo().getParameters().get(HBaseSerDe.HBASE_TABLE_NAME);
}
if (tableName == null) {
tableName = tbl.getDbName() + "." + tbl.getTableName();
if (tableName.startsWith(DEFAULT_PREFIX)) {
tableName = tableName.substring(DEFAULT_PREFIX.length());
}
}
return tableName;
}
private void validateTable(Table expectedTable, Table actualTable) {
assertEquals(expectedTable.getTableName(), actualTable.getTableName());
assertEquals(expectedTable.getDbName(), actualTable.getDbName());
assertEquals(expectedTable.getSd().getLocation(), actualTable.getSd().getLocation());
}
