| // Copyright 2014 The Bazel Authors. 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; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * A row of a Gantt Chart. A chart row is identified by its id and has an index that |
| * determines its location in the chart. |
| */ |
| public class ChartRow implements Comparable<ChartRow> { |
| |
| /** The unique id of this row. */ |
| private final String id; |
| |
| /** The index, i.e., the row number of the row in the chart. */ |
| private final int index; |
| |
| /** The list of bars in this row. */ |
| private final List<ChartBar> bars = new ArrayList<>(); |
| |
| /** |
| * Creates a chart row. |
| * |
| * @param id the unique id of this row |
| * @param index the index, i.e., the row number, of the row in the chart |
| */ |
| public ChartRow(String id, int index) { |
| Preconditions.checkNotNull(id); |
| this.id = id; |
| this.index = index; |
| } |
| |
| /** |
| * Adds a bar to the chart row. |
| * |
| * @param bar the {@link ChartBar} to add |
| */ |
| public void addBar(ChartBar bar) { |
| bars.add(bar); |
| } |
| |
| /** |
| * Returns the bars of the row as an unmodifieable list. |
| */ |
| public List<ChartBar> getBars() { |
| return Collections.unmodifiableList(bars); |
| } |
| |
| /** |
| * Accepts a {@link ChartVisitor}. Calls {@link ChartVisitor#visit(ChartRow)} |
| * and delegates the visitor to the bars of the chart row. |
| * |
| * @param visitor the visitor to accept |
| */ |
| public void accept(ChartVisitor visitor) { |
| visitor.visit(this); |
| for (ChartBar bar : bars) { |
| bar.accept(visitor); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * <p>Compares to rows by their index. |
| */ |
| @Override |
| public int compareTo(ChartRow other) { |
| return index - other.index; |
| } |
| |
| public int getIndex() { |
| return index; |
| } |
| |
| public String getId() { |
| return id; |
| } |
| } |