Package org.qubership.atp.dataset.macros

Class EvalContextImpl

java.lang.Object

org.qubership.atp.dataset.macros.EvalContextImpl

All Implemented Interfaces:

EvaluationContext

public class EvalContextImpl
extends Object
implements EvaluationContext

Field Summary

Fields

Modifier and Type	Field	Description
protected final Cache	cache
protected final MacroRegistry	registry
static final Comparator<EvalContextImpl>	SAME_NON_STRICT
protected final AliasWrapperService	wrapperService

Constructor Summary

Constructors

Constructor	Description
EvalContextImpl(EvalContextImpl parent, MacroRegistry registry, AliasWrapperService wrapperService, Cache cache, DataSetList dsl, DataSet ds, boolean parentIsStrict, List<Attribute> pathFromParent, Attribute targetAttrFromParent)	Contains state of evaluation plus all used resources.

Method Summary

Modifier and Type	Method	Description
protected EvalContextImpl	createChild(DataSetList dsl, DataSet ds, boolean parentIsStrict, List<Attribute> pathFromParent, Attribute targetAttrFromParent)
protected EvalContextImpl	createChild(OverlapItem.Reachable source, Parameter target)
boolean	equals(Object o)
String	evaluate(String inputText)	Evaluates text using this context.
protected String	evaluate(String inputText, MacroCacheKey cacheKey)
String	evaluate(Parameter parameter, String value)	Evaluates parameter using this context.
String	evaluate(OverlapItem.Reachable source, Parameter target, String value)	Finds context to evaluate parameter in.
<O> O	executeInAnyContext(Iterator<? extends EvaluationContext> of, MacroContext.ContextedTask<O> toExecute)	Executes MacroContext.ContextedTask in a context chain.
DataSet	getDs()
DataSetList	getDsl()
Iterator<EvalContextImpl>	getNonStrictContexts()	May be empty.
EvalContextImpl	getParent()
EvalContextImpl	getRoot()	Returns root context of a context chain.
Iterator<EvalContextImpl>	getStrictContexts()	May not be empty.
int	hashCode()
List<RefArg<Attribute>>	relativizePathFromSharedToThis(EvaluationContext shared, List<RefArg<Attribute>> attrArgs)	When you are searching for params in shared context by using refs, defined in this context, you should relativize attribute path like if param was defined in shared context.
void	resolveArguments(List<? extends RefArg<?>> args)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

SAME_NON_STRICT

public static final Comparator<EvalContextImpl> SAME_NON_STRICT

registry

protected final MacroRegistry registry

wrapperService

protected final AliasWrapperService wrapperService

cache

protected final Cache cache

Constructor Details

EvalContextImpl

public EvalContextImpl(@Nullable
 EvalContextImpl parent,
 @Nonnull
 MacroRegistry registry,
 @Nonnull
 AliasWrapperService wrapperService,
 @Nonnull
 Cache cache,
 @Nonnull
 DataSetList dsl,
 @Nonnull
 DataSet ds,
 boolean parentIsStrict,
 @Nonnull
 List<Attribute> pathFromParent,
 @Nullable
 Attribute targetAttrFromParent)

Contains state of evaluation plus all used resources.

Method Details

getParent

@Nullable
public EvalContextImpl getParent()

Specified by:

getParent in interface EvaluationContext

getDsl

@Nonnull
public DataSetList getDsl()

Specified by:

getDsl in interface EvaluationContext

getDs

@Nonnull
public DataSet getDs()

Specified by:

getDs in interface EvaluationContext

getRoot

@Nonnull
public EvalContextImpl getRoot()

Description copied from interface: EvaluationContext

Returns root context of a context chain.

Specified by:

getRoot in interface EvaluationContext

evaluate

@Nonnull
public String evaluate(@Nonnull
 OverlapItem.Reachable source,
 @Nonnull
 Parameter target,
 @Nonnull
 String value)
                throws CtxEvalException

Description copied from interface: EvaluationContext

Finds context to evaluate parameter in. Evaluates parameter using found context.

Specified by:

evaluate in interface EvaluationContext

Parameters:

target - is source.getParameter().get(). Ensure that it exists first.

value - is source.getParameter().get().getValue().get(). Ensure that it exists first.

Throws:

CtxEvalException

evaluate

@Nonnull
public String evaluate(@Nonnull
 String inputText)
                throws CtxEvalException

Description copied from interface: EvaluationContext

Evaluates text using this context. Use EvaluationContext.evaluate(Parameter, String) when possible!

Specified by:

evaluate in interface EvaluationContext

Parameters:

inputText - text to evaluate.

Throws:

CtxEvalException

evaluate

@Nonnull
protected String evaluate(@Nonnull
 String inputText,
 @Nonnull
 MacroCacheKey cacheKey)
                   throws CtxEvalException

Throws:

CtxEvalException

evaluate

@Nonnull
public String evaluate(@Nonnull
 Parameter parameter,
 @Nonnull
 String value)
                throws CtxEvalException

Description copied from interface: EvaluationContext

Evaluates parameter using this context. Use EvaluationContext.evaluate(OverlapItem.Reachable, Parameter, String) when possible!

Specified by:

evaluate in interface EvaluationContext

Parameters:

parameter - to evaluate.

value - is parameter.getValue().get(). Ensure that it is exists first.

Throws:

CtxEvalException

relativizePathFromSharedToThis

@Nonnull
public List<RefArg<Attribute>> relativizePathFromSharedToThis(@Nonnull
 EvaluationContext shared,
 @Nonnull
 List<RefArg<Attribute>> attrArgs)

Description copied from interface: EvaluationContext

When you are searching for params in shared context by using refs, defined in this context, you should relativize attribute path like if param was defined in shared context.

Specified by:

relativizePathFromSharedToThis in interface EvaluationContext

createChild

@Nonnull
protected EvalContextImpl createChild(@Nonnull
 OverlapItem.Reachable source,
 @Nonnull
 Parameter target)

createChild

@Nonnull
protected EvalContextImpl createChild(@Nonnull
 DataSetList dsl,
 @Nonnull
 DataSet ds,
 boolean parentIsStrict,
 @Nonnull
 List<Attribute> pathFromParent,
 @Nonnull
 Attribute targetAttrFromParent)

executeInAnyContext

@Nonnull
public <O> O executeInAnyContext(@Nonnull
 Iterator<? extends EvaluationContext> of,
 @Nonnull
 MacroContext.ContextedTask<O> toExecute)
                          throws CtxEvalException

Executes MacroContext.ContextedTask in a context chain. Starting context is the provided one (current). Going upper through callers contexts if the task failed with an exception. Returns first valid task result.

Specified by:

executeInAnyContext in interface EvaluationContext

Parameters:

of - typically is EvaluationContext.getStrictContexts().

Throws:

CtxEvalException - if args are not resolved or task failed with an exception in all possible contexts.

resolveArguments

public void resolveArguments(@Nonnull
 List<? extends RefArg<?>> args)
                      throws Exception

Specified by:

resolveArguments in interface EvaluationContext

Throws:

Exception

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getStrictContexts

@Nonnull
public Iterator<EvalContextImpl> getStrictContexts()

May not be empty. Returned contexts are relative and EvaluationContext.relativizePathFromSharedToThis(EvaluationContext, List) should be used for each of them.

Specified by:

getStrictContexts in interface EvaluationContext

Returns:

callers plus this.

getNonStrictContexts

@Nonnull
public Iterator<EvalContextImpl> getNonStrictContexts()

Description copied from interface: EvaluationContext

May be empty. Returned contexts are not relative and EvaluationContext.relativizePathFromSharedToThis(EvaluationContext, List) should not be used for each of them. Used when no one string context fits to your needs.

Specified by:

getNonStrictContexts in interface EvaluationContext

Returns:

additional contexts.