Package com.wavefront.predicates

Class Util

java.lang.Object

com.wavefront.predicates.Util

public abstract class Util
extends Object

Miscellaneous utility methods used by parsers and preprocessors.

Author:

vasily@wavefront.com.

Method Summary

Modifier and Type	Method	Description
static String	expandPlaceholders(String input, ReportHistogram reportHistogram)	Substitute {{...}} placeholders with corresponding components of the histogram {{metricName}} {{sourceName}} are replaced with the metric name and source respectively {{anyTagK}} is replaced with the value of the anyTagK point tag
static String	expandPlaceholders(String input, ReportMetric reportMetric)	Substitute {{...}} placeholders with corresponding components of the point {{metricName}} {{sourceName}} are replaced with the metric name and source respectively {{anyTagK}} is replaced with the value of the anyTagK point tag
static String	expandPlaceholders(String input, ReportPoint reportPoint)	Deprecated.
static String	expandPlaceholders(String input, Span span)	Substitute {{...}} placeholders with corresponding components of a Span {{spanName}} {{sourceName}} are replaced with the span name and source respectively {{anyKey}} is replaced with the value of an annotation with anyKey key
static long	parseTextualTimeExact(String interval, long anchorTime, TimeZone timeZone)	Parse a natural language time interval expression (e.g.

Methods inherited from class java.lang.Object

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

Method Detail

parseTextualTimeExact

public static long parseTextualTimeExact(String interval,
                                         long anchorTime,
                                         TimeZone timeZone)

Parse a natural language time interval expression (e.g. "now", "10 minutes ago", etc)

Parameters:

interval - time interval to parse

anchorTime - anchor time in epoch millis

timeZone - time zone

Returns:

epoch millis

expandPlaceholders

@Deprecated
public static String expandPlaceholders(String input,
                                        ReportPoint reportPoint)

Deprecated.

Substitute {{...}} placeholders with corresponding components of the point {{metricName}} {{sourceName}} are replaced with the metric name and source respectively {{anyTagK}} is replaced with the value of the anyTagK point tag

Parameters:

input - input string with {{...}} placeholders

reportPoint - ReportPoint object to extract components from

Returns:

string with substituted placeholders

expandPlaceholders

public static String expandPlaceholders(String input,
                                        ReportMetric reportMetric)

Substitute {{...}} placeholders with corresponding components of the point {{metricName}} {{sourceName}} are replaced with the metric name and source respectively {{anyTagK}} is replaced with the value of the anyTagK point tag

Parameters:

input - input string with {{...}} placeholders

reportMetric - ReportMetric object to extract components from

Returns:

string with substituted placeholders

expandPlaceholders

public static String expandPlaceholders(String input,
                                        ReportHistogram reportHistogram)

Substitute {{...}} placeholders with corresponding components of the histogram {{metricName}} {{sourceName}} are replaced with the metric name and source respectively {{anyTagK}} is replaced with the value of the anyTagK point tag

Parameters:

input - input string with {{...}} placeholders

reportHistogram - ReportHistogram object to extract components from

Returns:

string with substituted placeholders

expandPlaceholders

public static String expandPlaceholders(String input,
                                        Span span)

Substitute {{...}} placeholders with corresponding components of a Span {{spanName}} {{sourceName}} are replaced with the span name and source respectively {{anyKey}} is replaced with the value of an annotation with anyKey key

Parameters:

input - input string with {{...}} placeholders

span - Span object to extract components from

Returns:

string with substituted placeholders