Github user GodenYao commented on a diff in the pull request:
https://github.com/apache/incubator-hawq/pull/477#discussion_r56917255
--- Diff:
pxf/pxf-hive/src/main/java/org/apache/hawq/pxf/plugins/hive/utilities/HiveUtilities.java
---
@@ -203,19 +205,37 @@ private static boolean verifyModifers(String[]
modifiers) {
* It can be either <code>table_name</code> or
<code>db_name.table_name</code>.
*
* @param qualifiedName Hive table name
- * @return {@link org.apache.hawq.pxf.api.Metadata.Table} object
holding the full table name
+ * @return {@link Metadata.Item} object holding the full table name
*/
- public static Metadata.Table parseTableQualifiedName(String
qualifiedName) {
+ public static Metadata.Item extractTableFromName(String qualifiedName)
{
+ List<Metadata.Item> items = extractTablesFromPattern(null,
qualifiedName);
+ if(items.isEmpty()) {
+ return null;
+ }
+ return items.get(0);
+ }
+
+ /**
+ * Extracts the db_name and table_name from the qualifiedName.
+ * qualifiedName is the Hive table name or pattern that the user
enters in the CREATE EXTERNAL TABLE statement
+ * or when querying HCatalog table.
+ * It can be either <code>table_name_pattern</code> or
<code>db_name_pattern.table_name_pattern</code>.
+ *
+ * @param client Hivemetastore client
+ * @param pattern Hive table name or pattern
+ * @return {@link Metadata.Item} object holding the full table name
+ */
+ public static List<Metadata.Item>
extractTablesFromPattern(HiveMetaStoreClient client, String pattern) {
- String dbName, tableName;
+ String dbPattern, tablePattern;
String errorMsg = " is not a valid Hive table name. "
+ "Should be either <table_name> or <db_name.table_name>";
- if (StringUtils.isBlank(qualifiedName)) {
+ if (StringUtils.isBlank(pattern)) {
throw new IllegalArgumentException("empty string" + errorMsg);
}
- String[] rawToks = qualifiedName.split("[.]");
+ String[] rawToks = pattern.split("[.]");
ArrayList<String> toks = new ArrayList<String>();
for (String tok: rawToks) {
if (StringUtils.isBlank(tok)) {
--- End diff --
so this means input like "db_name.....table_name" will be accepted?
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