Add Support for ordering and limiting results in CLI show commands

hoodie-cli/src/main/java/com/uber/hoodie/cli/TableHeader.java

@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2016 Uber Technologies, Inc. (hoodie-dev-group@uber.com)
+ *
+ * Licensed 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 com.uber.hoodie.cli;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Header for the table to be rendered
+ */
+public class TableHeader {
+
+  // List of fields (columns)
+  private final List<String> fieldNames = new ArrayList<>();
+
+  /**
+   * Add a field (column) to table
+   *
+   * @param fieldName field Name
+   */
+  public TableHeader addTableHeaderField(String fieldName) {
+    fieldNames.add(fieldName);
+    return this;
+  }
+
+  /**
+   * Get all field names
+   */
+  public List<String> getFieldNames() {
+    return fieldNames;
+  }
+
+  /**
+   * Index of the field in the table
+   *
+   * @param fieldName Field Name
+   */
+  public int indexOf(String fieldName) {
+    return fieldNames.indexOf(fieldName);
+  }
+
+  /**
+   * Lookup field by offset
+   */
+  public String get(int index) {
+    return fieldNames.get(index);
+  }
+
+  /**
+   * Get number of fields in the table
+   */
+  public int getNumFields() {
+    return fieldNames.size();
+  }
+}