oshi.driver.linux.Lshw Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of driver-cql-shaded Show documentation
A Shaded CQL ActivityType driver for http://nosqlbench.io/
There is a newer version: 4.15.102
/**
 * 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.linux;

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

/**
 * Utility to read info from {@code lshw}
 */
@ThreadSafe
public final class Lshw {

    private Lshw() {
    }

    /**
     * Query the model from lshw
     *
     * @return The model if available, null otherwise
     */
    public static String queryModel() {
        String modelMarker = "product:";
        for (String checkLine : ExecutingCommand.runNative("lshw -C system")) {
            if (checkLine.contains(modelMarker)) {
                return checkLine.split(modelMarker)[1].trim();
            }
        }
        return null;
    }

    /**
     * Query the serial number from lshw
     *
     * @return The serial number if available, null otherwise
     */
    public static String querySerialNumber() {
        String serialMarker = "serial:";
        for (String checkLine : ExecutingCommand.runNative("lshw -C system")) {
            if (checkLine.contains(serialMarker)) {
                return checkLine.split(serialMarker)[1].trim();
            }
        }
        return null;
    }

    /**
     * Query the CPU capacity (max frequency) from lshw
     *
     * @return The CPU capacity (max frequency) if available, -1 otherwise
     */
    public static long queryCpuCapacity() {
        String capacityMarker = "capacity:";
        for (String checkLine : ExecutingCommand.runNative("lshw -class processor")) {
            if (checkLine.contains(capacityMarker)) {
                return ParseUtil.parseHertz(checkLine.split(capacityMarker)[1].trim());
            }
        }
        return -1L;
    }
}