org.apache.sysds.runtime.lineage

Class LineageItemUtils

java.lang.Object

org.apache.sysds.runtime.lineage.LineageItemUtils

public class LineageItemUtils
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static String	LPLACEHOLDER

Constructor Summary

Constructors

Constructor and Description
LineageItemUtils()

Method Summary

Modifier and Type	Method and Description
static void	addAllDataLineage(ExecutionContext ec)
static void	checkCycles(LineageItem current)
static void	constructLineageFromHops(Hop[] roots, String claName, Hop[] inputs, HashMap<Long,Hop> spoofmap)
static boolean	containsRandDataGen(HashSet<LineageItem> entries, LineageItem root)
static String	explainSingleLineageItem(LineageItem li)
static LineageItem[]	getLineage(ExecutionContext ec, CPOperand... operands)
static LineageItem[]	getLineageItemInputstoSB(ArrayList<String> inputs, ExecutionContext ec)
static LineageItem.LineageItemType	getType(String str)
static void	rCheckCycles(LineageItem current, Set<Long> probe, boolean useObjIdent)
static void	rConstructLineageFromHops(Hop root, Hop[] inputs, Map<Long,LineageItem> operands, HashMap<Long,Hop> spoofmap)
static LineageItem	rDecompress(LineageItem item) Deprecated.
static LineageItem	replace(LineageItem root, LineageItem liOld, LineageItem liNew)
static void	replaceDagLeaves(ExecutionContext ec, LineageItem root, CPOperand[] newLeaves)
static void	rGetDagLeaves(HashSet<LineageItem> leaves, LineageItem root)
static void	rReplaceDagLeaves(LineageItem root, LineageItem[] newleaves)
static void	rReplaceNR(LineageItem current, LineageItem liOld, LineageItem liNew) Non-recursive equivalent of rReplace(LineageItem, LineageItem, LineageItem) for robustness with regard to stack overflow errors.
static void	writeTraceToHDFS(String trace, String fname)

Methods inherited from class java.lang.Object

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

Field Detail

LPLACEHOLDER

public static final String LPLACEHOLDER

See Also:

Constant Field Values

Constructor Detail

LineageItemUtils

public LineageItemUtils()

Method Detail

getType

public static LineageItem.LineageItemType getType(String str)

explainSingleLineageItem

public static String explainSingleLineageItem(LineageItem li)

getLineage

public static LineageItem[] getLineage(ExecutionContext ec,
                                       CPOperand... operands)

constructLineageFromHops

public static void constructLineageFromHops(Hop[] roots,
                                            String claName,
                                            Hop[] inputs,
                                            HashMap<Long,Hop> spoofmap)

rConstructLineageFromHops

public static void rConstructLineageFromHops(Hop root,
                                             Hop[] inputs,
                                             Map<Long,LineageItem> operands,
                                             HashMap<Long,Hop> spoofmap)

rDecompress

@Deprecated
public static LineageItem rDecompress(LineageItem item)

Deprecated.

writeTraceToHDFS

public static void writeTraceToHDFS(String trace,
                                    String fname)

replace

public static LineageItem replace(LineageItem root,
                                  LineageItem liOld,
                                  LineageItem liNew)

rReplaceNR

public static void rReplaceNR(LineageItem current,
                              LineageItem liOld,
                              LineageItem liNew)

Non-recursive equivalent of rReplace(LineageItem, LineageItem, LineageItem) for robustness with regard to stack overflow errors.

Parameters:

current - Current lineage item

liOld - Old lineage item

liNew - New Lineage item.

replaceDagLeaves

public static void replaceDagLeaves(ExecutionContext ec,
                                    LineageItem root,
                                    CPOperand[] newLeaves)

rReplaceDagLeaves

public static void rReplaceDagLeaves(LineageItem root,
                                     LineageItem[] newleaves)

rGetDagLeaves

public static void rGetDagLeaves(HashSet<LineageItem> leaves,
                                 LineageItem root)

checkCycles

public static void checkCycles(LineageItem current)

rCheckCycles

public static void rCheckCycles(LineageItem current,
                                Set<Long> probe,
                                boolean useObjIdent)

containsRandDataGen

public static boolean containsRandDataGen(HashSet<LineageItem> entries,
                                          LineageItem root)

getLineageItemInputstoSB

public static LineageItem[] getLineageItemInputstoSB(ArrayList<String> inputs,
                                                     ExecutionContext ec)

addAllDataLineage

public static void addAllDataLineage(ExecutionContext ec)