1. /*
  2. * Copyright 2002,2004 The Apache Software Foundation
  3. *
  4. * Licensed under the Apache License, Version 2.0 (the "License");
  5. * you may not use this file except in compliance with the License.
  6. * You may obtain a copy of the License at
  7. *
  8. * http://www.apache.org/licenses/LICENSE-2.0
  9. *
  10. * Unless required by applicable law or agreed to in writing, software
  11. * distributed under the License is distributed on an "AS IS" BASIS,
  12. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. * See the License for the specific language governing permissions and
  14. * limitations under the License.
  15. *
  16. */
  17. package org.apache.tools.ant.taskdefs.optional.extension;
  18. import java.io.File;
  19. import org.apache.tools.ant.BuildException;
  20. import org.apache.tools.ant.Project;
  21. /**
  22. * Interface to locate a File that satisfies extension.
  23. *
  24. * @version $Revision: 1.5.2.4 $ $Date: 2004/03/09 17:01:45 $
  25. */
  26. public interface ExtensionResolver {
  27. /**
  28. * Attempt to locate File that satisfies
  29. * extension via resolver.
  30. *
  31. * @param extension the extension
  32. * @param project the Ant project instance
  33. * @return the File satisfying extension, null
  34. * if can not resolve extension
  35. * @throws BuildException if error occurs attempting to
  36. * resolve extension
  37. */
  38. File resolve(Extension extension, Project project)
  39. throws BuildException;
  40. }