[SPARK-14987][SQL] inline hive-service (cli) into sql/hive-thriftserver

## What changes were proposed in this pull request?

This PR copy the thrift-server from hive-service-1.2 (including  TCLIService.thrift and generated Java source code) into sql/hive-thriftserver, so we can do further cleanup and improvements.

## How was this patch tested?

Existing tests.

Author: Davies Liu <davies@databricks.com>

Closes #12764 from davies/thrift_server.

1 files changed, 102 insertions, 0 deletions

diff --git a/sql/hive-thriftserver/src/main/java/org/apache/hive/service/cli/TableSchema.java b/sql/hive-thriftserver/src/main/java/org/apache/hive/service/cli/TableSchema.java
new file mode 100644
index 0000000000..ee019bc737
--- /dev/null
+++ b/sql/hive-thriftserver/src/main/java/org/apache/hive/service/cli/TableSchema.java
@@ -0,0 +1,102 @@
+/**
+ * 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.hive.service.cli;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.hadoop.hive.metastore.api.FieldSchema;
+import org.apache.hadoop.hive.metastore.api.Schema;
+import org.apache.hive.service.cli.thrift.TColumnDesc;
+import org.apache.hive.service.cli.thrift.TTableSchema;
+
+/**
+ * TableSchema.
+ *
+ */
+public class TableSchema {
+  private final List<ColumnDescriptor> columns = new ArrayList<ColumnDescriptor>();
+
+  public TableSchema() {
+  }
+
+  public TableSchema(int numColumns) {
+    // TODO: remove this constructor
+  }
+
+  public TableSchema(TTableSchema tTableSchema) {
+    for (TColumnDesc tColumnDesc : tTableSchema.getColumns()) {
+      columns.add(new ColumnDescriptor(tColumnDesc));
+    }
+  }
+
+  public TableSchema(List<FieldSchema> fieldSchemas) {
+    int pos = 1;
+    for (FieldSchema field : fieldSchemas) {
+      columns.add(new ColumnDescriptor(field, pos++));
+    }
+  }
+
+  public TableSchema(Schema schema) {
+    this(schema.getFieldSchemas());
+  }
+
+  public List<ColumnDescriptor> getColumnDescriptors() {
+    return new ArrayList<ColumnDescriptor>(columns);
+  }
+
+  public ColumnDescriptor getColumnDescriptorAt(int pos) {
+    return columns.get(pos);
+  }
+
+  public int getSize() {
+    return columns.size();
+  }
+
+  public void clear() {
+    columns.clear();
+  }
+
+
+  public TTableSchema toTTableSchema() {
+    TTableSchema tTableSchema = new TTableSchema();
+    for (ColumnDescriptor col : columns) {
+      tTableSchema.addToColumns(col.toTColumnDesc());
+    }
+    return tTableSchema;
+  }
+
+  public Type[] toTypes() {
+    Type[] types = new Type[columns.size()];
+    for (int i = 0; i < types.length; i++) {
+      types[i] = columns.get(i).getType();
+    }
+    return types;
+  }
+
+  public TableSchema addPrimitiveColumn(String columnName, Type columnType, String columnComment) {
+    columns.add(ColumnDescriptor.newPrimitiveColumnDescriptor(columnName, columnComment, columnType, columns.size() + 1));
+    return this;
+  }
+
+  public TableSchema addStringColumn(String columnName, String columnComment) {
+    columns.add(ColumnDescriptor.newPrimitiveColumnDescriptor(columnName, columnComment, Type.STRING_TYPE, columns.size() + 1));
+    return this;
+  }
+}