org.hawkular.btm.server.cassandra

Class CassandraServiceUtil

java.lang.Object

org.hawkular.btm.server.cassandra.CassandraServiceUtil

public class CassandraServiceUtil
extends Object

Author:

gbrown

Field Summary

Fields

Modifier and Type	Field and Description
protected static String	SEPARATOR

Constructor Summary

Constructors

Constructor and Description
CassandraServiceUtil()

Method Summary

Modifier and Type	Method and Description
static String	emptyStringForNull(String value) This method converts a null value into an empty string.
static boolean	exclude(Map<String,String> properties, String fault, Criteria criteria) This method determines if the supplied details should be excluded based on the criteria.
static long	getBaseTimestamp(long startTime, long interval, int index) This method calculates the base time associated with the index slot.
static int	getPosition(long startTime, long interval, long time) This method calculates the array position of a particular time, based on a start time and interval.
static boolean	hasExclusions(Criteria criteria) This method identifies whether the supplied criteria has exclusions.
static String	propertyEncoding(CorrelationIdentifier ci) This method returns the encoding of the correlation identifier.
static String	propertyEncoding(Criteria.PropertyCriteria pc) This method returns the encoding of the property name and value.
static String	tenant(String id) This method returns the tenant to use in the Cassandra db.
static List<String>	toTagList(List<CorrelationIdentifier> cids) This method converts a list of correlation ids to a list of tags.
static List<String>	toTagList(Map<String,String> map) This method converts a map of properties to a list of tags.
static String	whereClause(String tenantId, Criteria criteria) This method builds a where clause for the supplied criteria.

Methods inherited from class java.lang.Object

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

Field Detail

SEPARATOR

protected static final String SEPARATOR

See Also:

Constant Field Values

Constructor Detail

CassandraServiceUtil

public CassandraServiceUtil()

Method Detail

toTagList

public static List<String> toTagList(Map<String,String> map)

This method converts a map of properties to a list of tags.

Parameters:

map - The map

Returns:

The list of tags

toTagList

public static List<String> toTagList(List<CorrelationIdentifier> cids)

This method converts a list of correlation ids to a list of tags.

Parameters:

cids - The list of correlation ids

Returns:

The list of tags

whereClause

public static String whereClause(String tenantId,
                                 Criteria criteria)

This method builds a where clause for the supplied criteria.

Parameters:

tenantId - The tenant id

criteria - The criteria

Returns:

The where clause

propertyEncoding

public static String propertyEncoding(Criteria.PropertyCriteria pc)

This method returns the encoding of the property name and value.

Parameters:

pc - The property criteria

Returns:

The encoded form

propertyEncoding

public static String propertyEncoding(CorrelationIdentifier ci)

This method returns the encoding of the correlation identifier.

Parameters:

ci - The correlation identifier

Returns:

The encoded form

tenant

public static String tenant(String id)

This method returns the tenant to use in the Cassandra db.

Parameters:

id - The id

Returns:

The id, or 'default' if id is null

emptyStringForNull

public static String emptyStringForNull(String value)

This method converts a null value into an empty string.

Parameters:

value - The value

Returns:

The value, or empty string if value is null

exclude

public static boolean exclude(Map<String,String> properties,
                              String fault,
                              Criteria criteria)

This method determines if the supplied details should be excluded based on the criteria.

Parameters:

properties - The properties

fault - The fault

criteria - The criteria

Returns:

Whether the information should be excluded

hasExclusions

public static boolean hasExclusions(Criteria criteria)

This method identifies whether the supplied criteria has exclusions.

Parameters:

criteria - The criteria

Returns:

Whether it has exclusions

getPosition

public static int getPosition(long startTime,
                              long interval,
                              long time)

This method calculates the array position of a particular time, based on a start time and interval.

Parameters:

startTime -

interval -

time -

Returns:

The position

getBaseTimestamp

public static long getBaseTimestamp(long startTime,
                                    long interval,
                                    int index)

This method calculates the base time associated with the index slot.

Parameters:

startTime - The start time

interval - The interval

index - The index

Returns:

The base time