org.rhq.enterprise.server.measurement.util
Class MeasurementUtils

java.lang.Object
  org.rhq.enterprise.server.measurement.util.MeasurementUtils

public class MeasurementUtils
extends Object

Field Summary

static int	UNIT_COLLECTION_POINTS
static int	UNIT_DAYS
static int	UNIT_HOURS
static int	UNIT_MINUTES
static int	UNIT_WEEKS

Constructor Summary

MeasurementUtils()

Method Summary

static List<Long>	calculateTimeFrame(int lastN, int unit) Method calculateTimeFrame Returns a two elementList of Long objects representing the begin and end times (in milliseconds since the epoch) of the timeframe.
static org.rhq.core.domain.measurement.ui.MetricDisplaySummary	parseMetricToken(String token) Parse the passed token that identifies single metric or group.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

UNIT_COLLECTION_POINTS

public static final int UNIT_COLLECTION_POINTS

See Also:

Constant Field Values

UNIT_MINUTES

public static final int UNIT_MINUTES

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Constant Field Values

UNIT_HOURS

public static final int UNIT_HOURS

See Also:

Constant Field Values

UNIT_DAYS

public static final int UNIT_DAYS

See Also:

Constant Field Values

UNIT_WEEKS

public static final int UNIT_WEEKS

See Also:

Constant Field Values

Constructor Detail

MeasurementUtils

public MeasurementUtils()

Method Detail

calculateTimeFrame

public static List<Long> calculateTimeFrame(int lastN,
                                            int unit)

Method calculateTimeFrame

Returns a two elementList of Long objects representing the begin and end times (in milliseconds since the epoch) of the timeframe. Returns null instead if the time unit is indicated as UNIT_COLLECTION_POINTS.

Parameters:

lastN - the number of time units in the time frame

unit - the unit of time (as defined by UNIT_* constants

Returns:

List

parseMetricToken

public static org.rhq.core.domain.measurement.ui.MetricDisplaySummary parseMetricToken(String token)

Parse the passed token that identifies single metric or group. The format of the token is (without quotation marks):

• For a compatible group: "cg,groupId,definitionId"
• For an autogroup : "ag,parentId,definitionId,childTypeId"
• For a single resource: "resourceId,scheduleId"

Parameters:

token - A token that follows the form mentioned above.

Returns:

a new MetricDisplaySummary where the identifiers for resource/group have been set.

See Also:

#getContextKeyChart(MetricDisplaySummary)