HADOOP-2198 HTable should have method to return table metadata

git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@599534 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -62,6 +62,8 @@ Trunk (unreleased changes)
    HADOOP-2262 Retry n times instead of n**2 times.
    HADOOP-1608 Relational Algrebra Operators
                (Edward Yoon via Stack)
+   HADOOP-2198 HTable should have method to return table metadata
+
 
 Release 0.15.1
 Branch 0.15

src/java/org/apache/hadoop/hbase/HTable.java

@@ -163,6 +163,22 @@ public class HTable implements HConstants {
     return this.tableName;
   }
 
+  /**
+   * @return table metadata 
+   * @throws IOException
+   */
+  public HTableDescriptor getMetadata() throws IOException {
+    HTableDescriptor [] metas = this.connection.listTables();
+    HTableDescriptor result = null;
+    for (int i = 0; i < metas.length; i++) {
+      if (metas[i].getName().equals(this.tableName)) {
+        result = metas[i];
+        break;
+      }
+    }
+    return result;
+  }
+
   /**
    * Gets the starting row key for every region in the currently open table
    * @return Array of region starting row keys

src/test/org/apache/hadoop/hbase/TestHTable.java

@@ -71,6 +71,11 @@ public class TestHTable extends HBaseClusterTestCase implements HConstants {
     // put some data into table A
     
     HTable a = new HTable(conf, tableAname);
+    
+    // Assert the metadata is good.
+    HTableDescriptor meta = a.getMetadata();
+    assertTrue(meta.equals(tableAdesc));
+    
     long lockid = a.startUpdate(row);
     a.put(lockid, COLUMN_FAMILY, value);
     a.commit(lockid);