com.mesosphere.sdk.offer.taskdata

Class AttributeStringUtils

java.lang.Object

com.mesosphere.sdk.offer.taskdata.AttributeStringUtils

public class AttributeStringUtils
extends java.lang.Object

Tools for converting Attributes into strings. Spec is defined by Mesos documentation at: http://mesos.apache.org/documentation/latest/attributes-resources/

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AttributeStringUtils.NameValue A utility class which pairs an attribute name with an attribute value.

Method Summary

Modifier and Type	Method and Description
static java.lang.String	join(java.lang.String name, java.lang.String value) Converts the provided name + value strings to an attribute string.
static AttributeStringUtils.NameValue	split(java.lang.String attribute) Returns the name and value from the provided attribute string.
static java.lang.String	toString(Attribute attribute) Converts the provided attribute's name + value into a string which follows the format defined by Mesos.
static java.lang.String	toString(java.util.List<Attribute> attributes) Converts the provided list of zero or more attributes into a string suitable for comparison.
static java.util.List<java.lang.String>	toStringList(java.lang.String joinedAttributes)
static java.lang.String	valueString(Attribute attribute) Converts the provided attribute's value into a string which follows the format defined by Mesos: attributes : attribute ( ";" attribute )* attribute : text ":" ( scalar | range | text ) text : [a-zA-Z0-9_/.-] scalar : floatValue floatValue : ( intValue ( "." intValue )? ) | ...

Methods inherited from class java.lang.Object

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

Method Detail

toStringList

public static java.util.List<java.lang.String> toStringList(java.lang.String joinedAttributes)

toString

public static java.lang.String toString(java.util.List<Attribute> attributes)
                                 throws java.lang.IllegalArgumentException

Converts the provided list of zero or more attributes into a string suitable for comparison.

Throws:

java.lang.IllegalArgumentException - if some part of the provided attributes couldn't be serialized

join

public static java.lang.String join(java.lang.String name,
                                    java.lang.String value)

Converts the provided name + value strings to an attribute string.

See Also:

which does the opposite

split

public static AttributeStringUtils.NameValue split(java.lang.String attribute)

Returns the name and value from the provided attribute string.

See Also:

which does the opposite

toString

public static java.lang.String toString(Attribute attribute)
                                 throws java.lang.IllegalArgumentException

Converts the provided attribute's name + value into a string which follows the format defined by Mesos.

Throws:

java.lang.IllegalArgumentException

See Also:

valueString(Attribute)

valueString

public static java.lang.String valueString(Attribute attribute)
                                    throws java.lang.IllegalArgumentException

Converts the provided attribute's value into a string which follows the format defined by Mesos: attributes : attribute ( ";" attribute )* attribute : text ":" ( scalar | range | text ) text : [a-zA-Z0-9_/.-] scalar : floatValue floatValue : ( intValue ( "." intValue )? ) | ... intValue : [0-9]+ range : "[" rangeValue ( "," rangeValue )* "]" rangeValue : scalar "-" scalar set : "{" text ( "," text )* "}" NOTE that it is difficult if not impossible to consistently perform the inverse of this operation. For example, how can you tell if something is supposed to be a SCALAR value or a TEXT value? [0-9.]+ is valid in both cases! Your best hope is to consistently convert to string, and then compare strings...

Throws:

java.lang.IllegalArgumentException - if some part of the provided attributes couldn't be serialized