Package net.sourceforge.pmd.reporting

Interface ViolationSuppressor

All Known Implementing Classes:

AbstractAnnotationSuppressor

public interface ViolationSuppressor

An object that suppresses rule violations. Suppressors are used by RuleContext to filter out violations. In PMD 6.0.x, the Report object filtered violations itself - but it has no knowledge of language-specific suppressors.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	ViolationSuppressor.SuppressionCommentWrapper	Wrapper around a suppression comment.
static interface	ViolationSuppressor.UnusedSuppressorNode	Represents an instance of a "suppressor" that didn't suppress anything.

Field Summary

Fields

Modifier and Type	Field	Description
static final ViolationSuppressor	NOPMD_COMMENT_SUPPRESSOR	Suppressor for regular NOPMD comments.
static final ViolationSuppressor	REGEX_SUPPRESSOR	Suppressor for the violationSuppressRegex property.
static final ViolationSuppressor	XPATH_SUPPRESSOR	Suppressor for the violationSuppressXPath property.

Method Summary

Modifier and Type	Method	Description
String	getId()	A name, for reporting and documentation purposes.
default Set<ViolationSuppressor.UnusedSuppressorNode>	getUnusedSuppressors(RootNode tree)	Return the set of suppressor nodes related to this suppressor that were not used during the analysis.
static @Nullable Report.SuppressedViolation	suppressOrNull(List<ViolationSuppressor> suppressorList, RuleViolation rv, Node node)	Apply a list of suppressors on the violation.
@Nullable Report.SuppressedViolation	suppressOrNull(RuleViolation rv, @NonNull Node node)	Returns a Report.SuppressedViolation if the given violation is suppressed by this object.

Field Details

REGEX_SUPPRESSOR

static final ViolationSuppressor REGEX_SUPPRESSOR

Suppressor for the violationSuppressRegex property.

XPATH_SUPPRESSOR

static final ViolationSuppressor XPATH_SUPPRESSOR

Suppressor for the violationSuppressXPath property.

NOPMD_COMMENT_SUPPRESSOR

static final ViolationSuppressor NOPMD_COMMENT_SUPPRESSOR

Suppressor for regular NOPMD comments.

Implementation Note:

This requires special support from the language, namely, the parser must fill in suppression comments through AstInfo.withSuppressionComments(Collection).

Method Details

getId

String getId()

A name, for reporting and documentation purposes.

suppressOrNull

@Nullable Report.SuppressedViolation suppressOrNull(RuleViolation rv,
 @NonNull Node node)

Returns a Report.SuppressedViolation if the given violation is suppressed by this object. The node and the rule are provided for context. Returns null if the violation is not suppressed.

getUnusedSuppressors

default Set<ViolationSuppressor.UnusedSuppressorNode> getUnusedSuppressors(RootNode tree)

Return the set of suppressor nodes related to this suppressor that were not used during the analysis. For instance, for an annotation suppressor, the set contains suppressor nodes wrapping annotations. This must be implemented if this suppressor wants to play well with the unused PMD suppression rule.

Parameters:

tree - Root node of a file

Returns:

A set

Since:

7.14.0

suppressOrNull

static @Nullable Report.SuppressedViolation suppressOrNull(List<ViolationSuppressor> suppressorList,
 RuleViolation rv,
 Node node)

Apply a list of suppressors on the violation. Returns the violation of the first suppressor that matches the input violation. If no suppressor matches, then returns null.