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A Shaded CQL ActivityType driver for http://nosqlbench.io/
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/**
 * MIT License
 *
 * Copyright (c) 2010 - 2020 The OSHI Project Contributors: https://github.com/oshi/oshi/graphs/contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package oshi.driver.unix.aix;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import oshi.annotation.concurrent.ThreadSafe;
import oshi.util.ExecutingCommand;
import oshi.util.ParseUtil;
import oshi.util.tuples.Pair;

/**
 * Utility to query lssrad
 */
@ThreadSafe
public final class Lssrad {

    private Lssrad() {
    }

    /**
     * Query {@code lssrad} to get numa node and physical package info
     *
     * @return A map of processor number to a pair containing the ref (NUMA
     *         equivalent) and srad (package)
     */
    public static Map> queryNodesPackages() {
        /*-
        # lssrad -av
        REF1        SRAD        MEM        CPU
        0
                       0       32749.12    0-63
                       1        9462.00    64-67 72-75
                                           80-83 88-91
        1
                       2        2471.19    92-95
        2
                       3        1992.00
                       4         249.00
         */
        int node = 0;
        int slot = 0;
        Map> nodeMap = new HashMap<>();
        List lssrad = ExecutingCommand.runNative("lssrad -av");
        // remove header
        if (!lssrad.isEmpty()) {
            lssrad.remove(0);
        }
        for (String s : lssrad) {
            String t = s.trim();
            if (!t.isEmpty()) {
                if (Character.isDigit(s.charAt(0))) {
                    node = ParseUtil.parseIntOrDefault(t, 0);
                } else {
                    if (t.contains(".")) {
                        String[] split = ParseUtil.whitespaces.split(t, 3);
                        slot = ParseUtil.parseIntOrDefault(split[0], 0);
                        t = split.length > 2 ? split[2] : "";
                    }
                    for (Integer proc : ParseUtil.parseHyphenatedIntList(t)) {
                        nodeMap.put(proc, new Pair<>(node, slot));
                    }
                }
            }
        }
        return nodeMap;
    }
}