DepthCompressCallStack.java

/*
 * Copyright 2014 NAVER Corp.
 *
 * 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.navercorp.pinpoint.profiler.context;

/**
 * @author Woonduk Kang(emeroad)
 */
public class DepthCompressCallStack extends DefaultCallStack {

    private int latestStackIndex = 0;

    public DepthCompressCallStack(Span span) {
        this(span, -1);
    }
    
    public DepthCompressCallStack(Span span, int maxDepth) {
        super(span, maxDepth);
    }

    @Override
    protected void markDepth(SpanEvent spanEvent, int depth) {
        // compact same depth
        if (latestStackIndex != index) {
            latestStackIndex = index;
            spanEvent.setDepth(latestStackIndex);
        }
    }



}