1 files changed, 51 insertions, 0 deletions
diff --git a/exec/java-exec/src/main/java/org/apache/drill/exec/record/metadata/schema/FsMetastoreSchemaProvider.java b/exec/java-exec/src/main/java/org/apache/drill/exec/record/metadata/schema/FsMetastoreSchemaProvider.java
new file mode 100644
index 000000000..ff3d1a7e3
--- /dev/null
+++ b/exec/java-exec/src/main/java/org/apache/drill/exec/record/metadata/schema/FsMetastoreSchemaProvider.java
@@ -0,0 +1,51 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.drill.exec.record.metadata.schema;
+
+import org.apache.drill.exec.store.dfs.WorkspaceSchemaFactory;
+import org.apache.hadoop.fs.Path;
+
+import java.io.IOException;
+import java.util.Map;
+
+/**
+ * Is used to provide schema based on table location on file system
+ * and default schema file name {@link SchemaProvider#DEFAULT_SCHEMA_NAME}.
+ */
+public class FsMetastoreSchemaProvider extends PathSchemaProvider {
+
+  private final String tableName;
+
+  public FsMetastoreSchemaProvider(WorkspaceSchemaFactory.WorkspaceSchema wsSchema, String tableName) throws IOException {
+    super(wsSchema.getFS(), generatePath(wsSchema, tableName));
+    this.tableName = String.format("%s.`%s`", wsSchema.getFullSchemaName(), tableName);
+  }
+
+  private static Path generatePath(WorkspaceSchemaFactory.WorkspaceSchema wsSchema, String tableName) throws IOException {
+    Path tablePath = new Path(wsSchema.getDefaultLocation(), tableName);
+    if (wsSchema.getFS().isFile(tablePath)) {
+      throw new IOException(String.format("Indicated table [%s.%s] must be a directory", wsSchema.getFullSchemaName(), tableName));
+    }
+    return new Path(tablePath, DEFAULT_SCHEMA_NAME);
+  }
+
+  @Override
+  protected SchemaContainer createTableSchema(String schema, Map<String, String> properties) {
+    return new SchemaContainer(tableName, schema, properties);
+  }
+}