1 files changed, 93 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/profiler/chart/ChartColumn.java b/src/main/java/com/google/devtools/build/lib/profiler/chart/ChartColumn.java
new file mode 100644
index 0000000000..25fffe8f58
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/profiler/chart/ChartColumn.java
@@ -0,0 +1,93 @@
+// Copyright 2014 Google Inc. All rights reserved.
+//
+// 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.google.devtools.build.lib.profiler.chart;
+
+import com.google.common.base.Preconditions;
+
+/**
+ * A chart column. The column can be used to highlight a time-range.
+ */
+public class ChartColumn {
+
+  /**
+   * The start value of the bar. This value has no unit. The interpretation of
+   * the value is up to the user of the class.
+   */
+  private final long start;
+
+  /**
+   * The stop value of the bar. This value has no unit. The interpretation of
+   * the value is up to the user of the class.
+   */
+  private final long stop;
+
+  /** The type of the bar. */
+  private final ChartBarType type;
+
+  /** The label of the bar. */
+  private final String label;
+
+  private int rowCount;
+
+  /**
+   * Creates a chart column.
+   *
+   * @param start the start value of the bar
+   * @param stop the stop value of the bar
+   * @param type the type of the bar
+   * @param label the label of the bar
+   */
+  public ChartColumn(long start, long stop, ChartBarType type, String label) {
+    Preconditions.checkNotNull(type);
+    Preconditions.checkNotNull(label);
+    this.start = start;
+    this.stop = stop;
+    this.type = type;
+    this.label = label;
+  }
+
+  /**
+   * Accepts a {@link ChartVisitor}. Calls {@link ChartVisitor#visit(ChartBar)}.
+   *
+   * @param visitor the visitor to accept
+   */
+  public void accept(ChartVisitor visitor) {
+    visitor.visit(this);
+  }
+
+  public long getStart() {
+    return start;
+  }
+
+  public long getWidth() {
+    return stop - start;
+  }
+
+  public ChartBarType getType() {
+    return type;
+  }
+
+  public String getLabel() {
+    return label;
+  }
+
+  public int getRowCount() {
+    return rowCount;
+  }
+
+  public void setRowCount(int rowCount) {
+    this.rowCount = rowCount;
+  }
+}