private int showGrants(ShowGrantDesc showGrantDesc) throws HiveException {
try {
Path resFile = new Path(showGrantDesc.getResFile());
FileSystem fs = resFile.getFileSystem(conf);
DataOutput outStream = fs.create(resFile);
PrincipalDesc principalDesc = showGrantDesc.getPrincipalDesc();
PrivilegeObjectDesc hiveObjectDesc = showGrantDesc.getHiveObj();
String principalName = principalDesc.getName();
if (hiveObjectDesc == null) {
List<HiveObjectPrivilege> users = db.showPrivilegeGrant(
HiveObjectType.GLOBAL, principalName, principalDesc.getType(),
null, null, null, null);
if (users != null && users.size() > 0) {
boolean first = true;
for (HiveObjectPrivilege usr : users) {
if (!first) {
outStream.write(terminator);
} else {
first = false;
}
writeGrantInfo(outStream, principalDesc.getType(), principalName,
null, null, null, null, usr.getGrantInfo());
}
}
} else {
String obj = hiveObjectDesc.getObject();
boolean notFound = true;
String dbName = null;
String tableName = null;
Table tableObj = null;
Database dbObj = null;
if (hiveObjectDesc.getTable()) {
String[] dbTab = obj.split("\\.");
if (dbTab.length == 2) {
dbName = dbTab[0];
tableName = dbTab[1];
} else {
dbName = db.getCurrentDatabase();
tableName = obj;
}
dbObj = db.getDatabase(dbName);
tableObj = db.getTable(dbName, tableName);
notFound = (dbObj == null || tableObj == null);
} else {
dbName = hiveObjectDesc.getObject();
dbObj = db.getDatabase(dbName);
notFound = (dbObj == null);
}
if (notFound) {
throw new HiveException(obj + " can not be found");
}
String partName = null;
List<String> partValues = null;
if (hiveObjectDesc.getPartSpec() != null) {
partName = Warehouse
.makePartName(hiveObjectDesc.getPartSpec(), false);
partValues = Warehouse.getPartValuesFromPartName(partName);
}
if (!hiveObjectDesc.getTable()) {
// show database level privileges
List<HiveObjectPrivilege> dbs = db.showPrivilegeGrant(HiveObjectType.DATABASE, principalName,
principalDesc.getType(), dbName, null, null, null);
if (dbs != null && dbs.size() > 0) {
boolean first = true;
for (HiveObjectPrivilege db : dbs) {
if (!first) {
outStream.write(terminator);
} else {
first = false;
}
writeGrantInfo(outStream, principalDesc.getType(), principalName,
dbName, null, null, null, db.getGrantInfo());
}
}
} else {
if (showGrantDesc.getColumns() != null) {
// show column level privileges
for (String columnName : showGrantDesc.getColumns()) {
List<HiveObjectPrivilege> columnss = db.showPrivilegeGrant(
HiveObjectType.COLUMN, principalName,
principalDesc.getType(), dbName, tableName, partValues,
columnName);
if (columnss != null && columnss.size() > 0) {
boolean first = true;
for (HiveObjectPrivilege col : columnss) {
if (!first) {
outStream.write(terminator);
} else {
first = false;
}
writeGrantInfo(outStream, principalDesc.getType(),
principalName, dbName, tableName, partName, columnName,
col.getGrantInfo());
}
}
}
} else if (hiveObjectDesc.getPartSpec() != null) {
// show partition level privileges
List<HiveObjectPrivilege> parts = db.showPrivilegeGrant(
HiveObjectType.PARTITION, principalName, principalDesc
.getType(), dbName, tableName, partValues, null);
if (parts != null && parts.size() > 0) {
boolean first = true;
for (HiveObjectPrivilege part : parts) {
if (!first) {
outStream.write(terminator);
} else {
first = false;
}
writeGrantInfo(outStream, principalDesc.getType(),
principalName, dbName, tableName, partName, null, part.getGrantInfo());
}
}
} else {
// show table level privileges
List<HiveObjectPrivilege> tbls = db.showPrivilegeGrant(
HiveObjectType.TABLE, principalName, principalDesc.getType(),
dbName, tableName, null, null);
if (tbls != null && tbls.size() > 0) {
boolean first = true;
for (HiveObjectPrivilege tbl : tbls) {
if (!first) {
outStream.write(terminator);
} else {
first = false;
}
writeGrantInfo(outStream, principalDesc.getType(),