Package org.apache.logging.log4j.core.appender.rolling.action

Class IfFileName

  • All Implemented Interfaces:
    PathCondition
    @Plugin(name="IfFileName",
        category="Core",
        printObject=true)
public final class IfFileName
extends java.lang.Object
implements PathCondition
    PathCondition that accepts files for deletion if their relative path matches either a glob pattern or a regular expression. If both a regular expression and a glob pattern are specified the glob pattern is used and the regular expression is ignored.

    The regular expression is a pattern as defined by the Pattern class. A glob is a simplified pattern expression described in FileSystem.getPathMatcher(String).

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private IfFileName​(java.lang.String glob, java.lang.String regex, PathCondition... nestedConditions)
      Constructs a FileNameFilter filter.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean accept​(java.nio.file.Path basePath, java.nio.file.Path relativePath, java.nio.file.attribute.BasicFileAttributes attrs)
      Returns true if the specified candidate path should be deleted, false otherwise.
      void beforeFileTreeWalk()
      Invoked before a new file tree walk is started.
      static IfFileName createNameCondition​(java.lang.String glob, java.lang.String regex, PathCondition... nestedConditions)
      Creates a IfFileName condition that returns true if either the specified glob pattern or the regular expression matches the relative path.
      (package private) static java.lang.String createSyntaxAndPatternString​(java.lang.String glob, java.lang.String regex)  
      java.util.List<PathCondition> getNestedConditions()  
      java.lang.String getSyntaxAndPattern()
      Returns the baseDir-relative path pattern of the files to delete.
      java.lang.String toString()  

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • LOGGER

        private static final Logger LOGGER

      • pathMatcher

        private final java.nio.file.PathMatcher pathMatcher

      • syntaxAndPattern

        private final java.lang.String syntaxAndPattern

      • nestedConditions

        private final PathCondition[] nestedConditions

    • Constructor Detail

      • IfFileName

        private IfFileName​(java.lang.String glob,
                   java.lang.String regex,
                   PathCondition... nestedConditions)
        Constructs a FileNameFilter filter. If both a regular expression and a glob pattern are specified the glob pattern is used and the regular expression is ignored.
        Parameters:
        glob - the baseDir-relative path pattern of the files to delete (may contain '*' and '?' wildcarts)
        regex - the regular expression that matches the baseDir-relative path of the file(s) to delete
        nestedConditions - nested conditions to evaluate if this condition accepts a path

    • Method Detail

      • createSyntaxAndPatternString

        static java.lang.String createSyntaxAndPatternString​(java.lang.String glob,
                                                     java.lang.String regex)

      • getSyntaxAndPattern

        public java.lang.String getSyntaxAndPattern()
        Returns the baseDir-relative path pattern of the files to delete. The returned string takes the form syntax:pattern where syntax is one of "glob" or "regex" and the pattern is either a regular expression or a simplified pattern expression described under "glob" in FileSystem.getPathMatcher(String).
        Returns:
        relative path of the file(s) to delete (may contain regular expression or wildcarts)

      • getNestedConditions

        public java.util.List<PathCondition> getNestedConditions()

      • accept

        public boolean accept​(java.nio.file.Path basePath,
                      java.nio.file.Path relativePath,
                      java.nio.file.attribute.BasicFileAttributes attrs)
        Description copied from interface: PathCondition
        Returns true if the specified candidate path should be deleted, false otherwise.
        Specified by:
        accept in interface PathCondition
        Parameters:
        basePath - the directory from where to start scanning for deletion candidate files
        relativePath - the candidate for deletion. This path is relative to the baseDir.
        attrs - attributes of the candidate path
        Returns:
        whether the candidate path should be deleted

      • beforeFileTreeWalk

        public void beforeFileTreeWalk()
        Description copied from interface: PathCondition
        Invoked before a new file tree walk is started. Stateful PathConditions can reset their state when this method is called.
        Specified by:
        beforeFileTreeWalk in interface PathCondition

      • createNameCondition

        @PluginFactory
public static IfFileName createNameCondition​(@PluginAttribute("glob")
                                             java.lang.String glob,
                                             @PluginAttribute("regex")
                                             java.lang.String regex,
                                             @PluginElement("PathConditions")
                                             PathCondition... nestedConditions)
        Creates a IfFileName condition that returns true if either the specified glob pattern or the regular expression matches the relative path. If both a regular expression and a glob pattern are specified the glob pattern is used and the regular expression is ignored.
        Parameters:
        glob - the baseDir-relative path pattern of the files to delete (may contain '*' and '?' wildcarts)
        regex - the regular expression that matches the baseDir-relative path of the file(s) to delete
        nestedConditions - nested conditions to evaluate if this condition accepts a path
        Returns:
        A IfFileName condition.
        See Also:
        FileSystem.getPathMatcher(String)

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object