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// 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.runtime;
import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableList;
/**
* Aggregates all the critical path components in one object. This allows us to easily access the
* components data and have a proper toString().
*/
public class AggregatedCriticalPath<T extends AbstractCriticalPathComponent<?>> {
private final long totalTime;
private final ImmutableList<T> criticalPathComponents;
protected AggregatedCriticalPath(long totalTime, ImmutableList<T> criticalPathComponents) {
this.totalTime = totalTime;
this.criticalPathComponents = criticalPathComponents;
}
/** Total wall time in ms spent running the critical path actions. */
public long totalTime() {
return totalTime;
}
/** Returns a list of all the component stats for the critical path. */
public ImmutableList<T> components() {
return criticalPathComponents;
}
@Override
public String toString() {
return toString(false);
}
/**
* Returns a summary version of the critical path stats that omits stats that are not useful
* to the user.
*/
public String toStringSummary() {
return toString(true);
}
private String toString(boolean summary) {
StringBuilder sb = new StringBuilder("Critical Path: ");
double totalMillis = totalTime;
sb.append(String.format("%.2f", totalMillis / 1000.0));
sb.append("s");
if (summary || criticalPathComponents.isEmpty()) {
return sb.toString();
}
sb.append("\n ");
Joiner.on("\n ").appendTo(sb, criticalPathComponents);
return sb.toString();
}
}
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