com.google.cloud.trace.v1.util.RoughTraceSizer Maven / Gradle / Ivy
// Copyright 2016 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.cloud.trace.v1.util;
import com.google.devtools.cloudtrace.v1.Trace;
import com.google.devtools.cloudtrace.v1.TraceSpan;
import java.util.Map;
/**
* A class for sizing traces.
*
* @see Sizer
* @see Trace
*/
public class RoughTraceSizer implements Sizer {
/**
* Sizes a trace.
*
* @param trace a trace to be sized.
* @return the size of the trace.
*/
@Override
public int size(Trace trace) {
int size = 0;
size += trace.getProjectId().length();
size += trace.getTraceId().length();
for (TraceSpan span : trace.getSpansList()) {
size += spanSize(span);
}
return size;
}
private int spanSize(TraceSpan span) {
int size = 0;
size += 8; // For span_id.
size += 4; // For kind.
size += span.getName().length();
size += 16; // For start_time.
size += 16; // For end_time.
size += 8; // For parent_span_id.
size += labelsSize(span);
return size;
}
private int labelsSize(TraceSpan span) {
int size = 0;
for (Map.Entry label : span.getLabelsMap().entrySet()) {
size += label.getKey().length() + label.getValue().length();
}
return size;
}
}