Examples with MemoryStatistics org.onosproject.drivers.server.stats.MemoryStatistics used on opensource projects

Example 1 with MemoryStatistics

use of org.onosproject.drivers.server.stats.MemoryStatistics in project onos by opennetworkinglab.

the class ServerDevicesDiscovery method getMonitoringStatistics.

/**
 * Query a server to retrieve monitoring statistics for a
 * specific resource (i.e., traffic class).
 *
 * @param deviceId the device ID to be queried
 * @param tcId the ID of the traffic class to be monitored
 * @return resource-specific monitoring statistics
 */
private MonitoringStatistics getMonitoringStatistics(DeviceId deviceId, URI tcId) {
    // Monitoring statistics to return
    MonitoringStatistics monStats = null;
    RestServerSBDevice device = null;
    try {
        device = (RestServerSBDevice) getDevice(deviceId);
    } catch (ClassCastException ccEx) {
        log.error("Failed to retrieve monitoring statistics from device {}", deviceId);
        return monStats;
    }
    if (device == null) {
        return monStats;
    }
    // Create a resource-specific URL
    String scUrl = URL_SERVICE_CHAINS_STATS + SLASH + tcId.toString();
    // Hit the path that provides the server's specific resources
    InputStream response = null;
    try {
        response = getController().get(deviceId, scUrl, JSON);
    } catch (ProcessingException pEx) {
        log.error("Failed to retrieve monitoring statistics from device {}", deviceId);
        raiseDeviceDisconnect(device);
        return monStats;
    }
    // Load the JSON into objects
    ObjectMapper mapper = new ObjectMapper();
    Map<String, Object> jsonMap = null;
    JsonNode jsonNode = null;
    ObjectNode objNode = null;
    try {
        jsonMap = mapper.readValue(response, Map.class);
        jsonNode = mapper.convertValue(jsonMap, JsonNode.class);
        objNode = (ObjectNode) jsonNode;
    } catch (IOException ioEx) {
        log.error("Failed to retrieve monitoring statistics from device {}", deviceId);
        raiseDeviceDisconnect(device);
        return monStats;
    }
    if (jsonMap == null) {
        log.error("Failed to retrieve monitoring statistics from device {}", deviceId);
        raiseDeviceDisconnect(device);
        return monStats;
    }
    // Get the ID of the traffic class
    String id = get(jsonNode, PARAM_ID);
    // And verify that this is the traffic class we want to monitor
    if (!id.equals(tcId.toString())) {
        throw new IllegalStateException("Failed to retrieve monitoring data for traffic class " + tcId + ". Traffic class ID does not agree.");
    }
    // Get a list of CPU statistics per core
    Collection<CpuStatistics> cpuStats = parseCpuStatistics(deviceId, objNode);
    // Get main memory statistics
    MemoryStatistics memStats = parseMemoryStatistics(deviceId, objNode);
    // Get a list of port statistics
    Collection<PortStatistics> nicStats = parseNicStatistics(deviceId, objNode);
    // Get timing statistics
    TimingStatistics timinsgStats = parseTimingStatistics(objNode);
    // Construct a global monitoring statistics object out of smaller ones
    monStats = DefaultMonitoringStatistics.builder().setDeviceId(deviceId).setTimingStatistics(timinsgStats).setCpuStatistics(cpuStats).setMemoryStatistics(memStats).setNicStatistics(nicStats).build();
    // When a device reports monitoring data, it means it is alive
    raiseDeviceReconnect(device);
    log.debug("Monitoring statistics: {}", monStats.toString());
    return monStats;
}

Example 2 with MemoryStatistics

use of org.onosproject.drivers.server.stats.MemoryStatistics in project onos by opennetworkinglab.

the class ServerDevicesDiscovery method getGlobalMonitoringStatistics.

/**
 * Query a server to retrieve its global monitoring statistics.
 *
 * @param deviceId the device ID to be queried
 * @return global monitoring statistics
 */
public MonitoringStatistics getGlobalMonitoringStatistics(DeviceId deviceId) {
    // Monitoring statistics to return
    MonitoringStatistics monStats = null;
    RestServerSBDevice device = null;
    try {
        device = (RestServerSBDevice) getDevice(deviceId);
    } catch (ClassCastException ccEx) {
        log.error("Failed to retrieve global monitoring statistics from device {}", deviceId);
        return monStats;
    }
    if ((device == null) || (!device.isActive())) {
        return monStats;
    }
    // Hit the path that provides the server's global resources
    InputStream response = null;
    try {
        response = getController().get(deviceId, URL_SRV_GLOBAL_STATS, JSON);
    } catch (ProcessingException pEx) {
        log.error("Failed to retrieve global monitoring statistics from device {}", deviceId);
        raiseDeviceDisconnect(device);
        return monStats;
    }
    // Load the JSON into objects
    ObjectMapper mapper = new ObjectMapper();
    Map<String, Object> jsonMap = null;
    ObjectNode objNode = null;
    try {
        jsonMap = mapper.readValue(response, Map.class);
        JsonNode jsonNode = mapper.convertValue(jsonMap, JsonNode.class);
        objNode = (ObjectNode) jsonNode;
    } catch (IOException ioEx) {
        log.error("Failed to retrieve global monitoring statistics from device {}", deviceId);
        raiseDeviceDisconnect(device);
        return monStats;
    }
    if (jsonMap == null) {
        log.error("Failed to retrieve global monitoring statistics from device {}", deviceId);
        raiseDeviceDisconnect(device);
        return monStats;
    }
    // Get high-level CPU statistics
    int busyCpus = objNode.path(PARAM_MON_BUSY_CPUS).asInt();
    int freeCpus = objNode.path(PARAM_MON_FREE_CPUS).asInt();
    // Get a list of CPU statistics per core
    Collection<CpuStatistics> cpuStats = parseCpuStatistics(deviceId, objNode);
    // Get main memory statistics
    MemoryStatistics memStats = parseMemoryStatistics(deviceId, objNode);
    // Get a list of port statistics
    Collection<PortStatistics> nicStats = parseNicStatistics(deviceId, objNode);
    // Get zero timing statistics
    TimingStatistics timinsgStats = getZeroTimingStatistics();
    // Construct a global monitoring statistics object out of smaller ones
    monStats = DefaultMonitoringStatistics.builder().setDeviceId(deviceId).setTimingStatistics(timinsgStats).setCpuStatistics(cpuStats).setMemoryStatistics(memStats).setNicStatistics(nicStats).build();
    // When a device reports monitoring data, it means it is alive
    raiseDeviceReconnect(device);
    log.debug("Global monitoring statistics: {}", monStats.toString());
    return monStats;
}