org.apache.ambari.server.view

Class ViewExtractor

java.lang.Object

org.apache.ambari.server.view.ViewExtractor

public class ViewExtractor
extends Object

Extractor for view archives.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ViewExtractor.ExtractionException General exception for view archive extraction.

Constructor Summary

Constructors

Constructor and Description
ViewExtractor()

Method Summary

Modifier and Type	Method and Description
boolean	ensureExtractedArchiveDirectory(String extractedArchivesPath) Ensure that the extracted view archive directory exists.
ClassLoader	extractViewArchive(ViewEntity view, File viewArchive, File archiveDir, List<File> viewsAdditionalClasspath) Extract the given view archive to the given archive directory.

Methods inherited from class java.lang.Object

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

Constructor Detail

ViewExtractor

public ViewExtractor()

Method Detail

extractViewArchive

public ClassLoader extractViewArchive(ViewEntity view,
                                      File viewArchive,
                                      File archiveDir,
                                      List<File> viewsAdditionalClasspath)
                               throws ViewExtractor.ExtractionException

Extract the given view archive to the given archive directory.

Parameters:

view - the view entity

viewArchive - the view archive file

archiveDir - the view archive directory

viewsAdditionalClasspath: - list of additional paths to be added to every view's classpath

Returns:

the class loader for the archive classes

Throws:

ViewExtractor.ExtractionException - if the archive can not be extracted

ensureExtractedArchiveDirectory

public boolean ensureExtractedArchiveDirectory(String extractedArchivesPath)

Ensure that the extracted view archive directory exists.

Parameters:

extractedArchivesPath - the path

Returns:

false if the directory does not exist and can not be created