Class WikiToXhtmlMigrationUpgradeTask

All Implemented Interfaces:
BackupSupport, DatabaseUpgradeTask, DeferredUpgradeTask, UpgradeTask, UpgradeTaskInfo, org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanNameAware

public class WikiToXhtmlMigrationUpgradeTask extends AbstractDeferredRunUpgradeTask implements DatabaseUpgradeTask
Convert all wiki formatted content to XHTML content as part of the upgrade. It should be noted that any migration errors from individual pages will be recorded and logged but will not cause the upgrade itself to fail. This is to allow for cases where most content migrates successfully and there are simply a few failures that can be fixed through a different mechanism.
  • Constructor Details

    • WikiToXhtmlMigrationUpgradeTask

      public WikiToXhtmlMigrationUpgradeTask(SiteMigrator migrator)
  • Method Details

    • doDeferredUpgrade

      public void doDeferredUpgrade() throws Exception
      Description copied from interface: DeferredUpgradeTask
      Run the upgrade that was deferred by an earlier call to doUpgrade.
      Specified by:
      doDeferredUpgrade in interface DeferredUpgradeTask
      Throws:
      Exception
    • getBuildNumber

      public String getBuildNumber()
      Specified by:
      getBuildNumber in interface UpgradeTaskInfo
      Overrides:
      getBuildNumber in class AbstractUpgradeTask
      Returns:
      The build number that this upgrade is applicable to
    • getShortDescription

      public String getShortDescription()
      Description copied from interface: UpgradeTaskInfo
      A short (<50 chars) description of the upgrade action
      Specified by:
      getShortDescription in interface UpgradeTaskInfo
      Overrides:
      getShortDescription in class AbstractUpgradeTask
    • runOnSpaceImport

      public boolean runOnSpaceImport()
      Description copied from interface: BackupSupport
      Returns true if an older Space can't be imported in a new instance without running this task. For example:
      • A task updating macro names in the BodyContent table would be blocking.
      • Tasks which updates data related to the space would be blocking.
      • A task upgrading the user table wouldn't be blocking.
      • Adding a mandatory column on space-related content breaks space import

      Note that tasks don't run on space import yet, so we just reject the import in this case.

      Specified by:
      runOnSpaceImport in interface BackupSupport
    • breaksBackwardCompatibility

      public boolean breaksBackwardCompatibility()
      Description copied from interface: BackupSupport
      Returns true if a new export can't be imported in an older instance.

      Breaking compatibility means a snapshot of the new version will not work at all with the previous version. For example:

      • A destructive operation (Some data is replaced by another) breaks backwards compatibility
      • Adding a optional column does NOT break backwards compatibility
      • Data is copied to another column doesn't breaks backwards compatibility
      • A build number incrementation doesn't breaks backwards compatibility
      The best way to test is whether a newer export can be imported (with fully working features) in an older instance.
      Specified by:
      breaksBackwardCompatibility in interface BackupSupport