Package host.anzo.commons.versioning

Class Locator

java.lang.Object
host.anzo.commons.versioning.Locator
public final class Locator extends Object
The Locator is a utility class which is used to find certain items in the environment.
Since:
Ant 1.6

  • Method Details

    • getClassSource

      public static File getClassSource(@NotNull @NotNull Class<?> c)
      Find the directory or jar file the class has been loaded from.
      Parameters:
      c - the class whose location is required.
      Returns:
      the file or jar with the class or null if we cannot determine the location.
      Since:
      Ant 1.6

    • getResourceSource

      @Nullable public static @Nullable File getResourceSource(ClassLoader c, String resource)
      Find the directory or jar a given resource has been loaded from.
      Parameters:
      c - the classloader to be consulted for the source.
      resource - the resource whose location is required.
      Returns:
      the file with the resource source or null if we cannot determine the location.
      Since:
      Ant 1.6

    • fromURI

      @NotNull public static @NotNull String fromURI(String uri)
      Constructs a file path from a file: URI.

      Will be an absolute path if the given URI is absolute.

      Swallows '%' that are not followed by two characters, doesn't deal with non-ASCII characters.

      Parameters:
      uri - the URI designating a file in the local filesystem.
      Returns:
      the local file system path for the file.
      Since:
      Ant 1.6

    • getToolsJar

      @Nullable public static @Nullable File getToolsJar()
      Get the File necessary to load the Sun compiler tools. If the classes are available to this class, then no additional URL is required and null is returned. This may be because the classes are explicitly in the class path or provided by the JVM directly.
      Returns:
      the tools jar as a File if required, null otherwise.

    • getLocationURLs

      public static URL @NotNull [] getLocationURLs(File location) throws MalformedURLException
      Get an array of URLs representing all of the jar files in the given location. If the location is a file, it is returned as the only element of the array. If the location is a directory, it is scanned for jar files.
      Parameters:
      location - the location to scan for Jars.
      Returns:
      an array of URLs for all jars in the given location.
      Throws:
      MalformedURLException - if the URLs for the jars cannot be formed.

    • getLocationURLs

      public static URL @NotNull [] getLocationURLs(@NotNull @NotNull File location, String[] extensions) throws MalformedURLException
      Get an array of URLs representing all of the files of a given set of extensions in the given location. If the location is a file, it is returned as the only element of the array. If the location is a directory, it is scanned for matching files.
      Parameters:
      location - the location to scan for files.
      extensions - an array of extension that are to match in the directory search.
      Returns:
      an array of URLs of matching files.
      Throws:
      MalformedURLException - if the URLs for the files cannot be formed.