MTMVCacheStatProcNode.java

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// to you under the Apache License, Version 2.0 (the
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//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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package org.apache.doris.common.proc;

import org.apache.doris.common.AnalysisException;
import org.apache.doris.mtmv.MTMVCacheManager;
import org.apache.doris.mtmv.MTMVCacheManager.Snapshot;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;

public class MTMVCacheStatProcNode implements ProcNodeInterface {
    public static final ImmutableList<String> TITLE_NAMES = new ImmutableList.Builder<String>()
            .add("Name").add("Value").build();

    private final MTMVCacheManager manager;

    public MTMVCacheStatProcNode(MTMVCacheManager manager) {
        this.manager = manager;
    }

    @Override
    public ProcResult fetchResult() throws AnalysisException {
        BaseProcResult result = new BaseProcResult();
        result.setNames(TITLE_NAMES);
        Snapshot s = manager.snapshot();
        result.addRow(Lists.newArrayList("size", String.valueOf(s.size)));
        result.addRow(Lists.newArrayList("hitCount", String.valueOf(s.hitCount)));
        result.addRow(Lists.newArrayList("missCount", String.valueOf(s.missCount)));
        result.addRow(Lists.newArrayList("evictionCount", String.valueOf(s.evictionCount)));
        result.addRow(Lists.newArrayList("hitRate", String.format("%.4f", s.hitRate)));
        return result;
    }
}