org.apache.hudi.org.openjdk.jol.info.GraphStats Maven / Gradle / Ivy
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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package org.openjdk.jol.info;
/**
* Light-weight statistics about the object graph.
*/
public class GraphStats {
/**
* Parse the object graph starting from the given instance.
*
* @param roots root instances to start from
* @return object graph
*/
public static GraphStats parseInstance(Object... roots) {
return new GraphStatsWalker().walk(roots);
}
private long totalCount;
private long totalSize;
void addRecord(long size) {
totalCount++;
totalSize += size;
}
/**
* Answer the total instance count
*
* @return total instance count
*/
public long totalCount() {
return totalCount;
}
/**
* Answer the total instance footprint
*
* @return total instance footprint, bytes
*/
public long totalSize() {
return totalSize;
}
}