Package com.wavefront.agent.preprocessor

Class PreprocessorUtil

java.lang.Object

com.wavefront.agent.preprocessor.PreprocessorUtil

public abstract class PreprocessorUtil
extends Object

Utility class for methods used by preprocessors.

Author:

[email protected]

Constructor Summary

Constructors

Constructor	Description
PreprocessorUtil()

Method Summary

Modifier and Type	Method	Description
static String	expandPlaceholders(String input, wavefront.report.ReportPoint reportPoint)	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, wavefront.report.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 boolean	getBoolean(Map<String,Object> ruleMap, String key, boolean defaultValue)
static int	getInteger(Map<String,Object> ruleMap, String key, int defaultValue)
static String	getString(Map<String,Object> ruleMap, String key)
static String	truncate(String input, int maxLength, LengthLimitActionType actionSubtype)	Enforce string max length limit - either truncate or truncate with "..." at the end.

Methods inherited from class java.lang.Object

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

Constructor Detail

PreprocessorUtil

public PreprocessorUtil()

Method Detail

expandPlaceholders

public static String expandPlaceholders(String input,
                                        @Nonnull
                                        wavefront.report.ReportPoint reportPoint)

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,
                                        @Nonnull
                                        wavefront.report.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

truncate

public static String truncate(String input,
                              int maxLength,
                              LengthLimitActionType actionSubtype)

Enforce string max length limit - either truncate or truncate with "..." at the end.

Parameters:

input - Input string to truncate.

maxLength - Truncate string at this length.

actionSubtype - TRUNCATE or TRUNCATE_WITH_ELLIPSIS.

Returns:

truncated string

getString

@Nullable
public static String getString(Map<String,Object> ruleMap,
                               String key)

getBoolean

public static boolean getBoolean(Map<String,Object> ruleMap,
                                 String key,
                                 boolean defaultValue)

getInteger

public static int getInteger(Map<String,Object> ruleMap,
                             String key,
                             int defaultValue)