UpdateCheck

com.google.appengine.tools.info

Class UpdateCheck

  • java.lang.Object
    • com.google.appengine.tools.info.UpdateCheck


  • public class UpdateCheck
    extends java.lang.Object
    UpdateCheck is responsible for gathering version information about the local SDK, uploading this information to Google's servers in exchange for information about the latest version available, and making both sets of information available programmatically via UpdateCheckResults and for direct user consumption via a nag screen printed to a specified PrintStream.
    • Constructor Summary

      Constructors 
      Constructor and Description
      UpdateCheck(java.lang.String server)
      Create a new UpdateCheck.
      UpdateCheck(java.lang.String server, java.io.File appDirectory, boolean secure)
      Create a new UpdateCheck.
    • Constructor Detail

      • UpdateCheck

        public UpdateCheck(java.lang.String server)
        Create a new UpdateCheck.
        Parameters:
        server - The remote server to connect to when retrieving remote version information.
      • UpdateCheck

        public UpdateCheck(java.lang.String server,
                           java.io.File appDirectory,
                           boolean secure)
        Create a new UpdateCheck.
        Parameters:
        server - The remote server to connect to when retrieving remote version information.
        appDirectory - The application directory that you plan to test or publish, or null if no application directory is available.
        secure - if true, use an https (instead of http) connection to the remote server.
    • Method Detail

      • allowedToCheckForUpdates

        public boolean allowedToCheckForUpdates()
        Returns true if the user wants to check for updates even when we don't need to. We assume that users will want this functionality, but they can opt out by creating an .appcfg_no_nag file in their home directory.
      • checkForUpdates

        @Deprecated
        public UpdateCheckResults checkForUpdates()
        Deprecated. 
        Returns an UpdateCheckResults for checking if a WAR directory or the local installation uses an out of date version of the SDK.

        Callers that do not already communicate with Google explicitly (e.g. the DevAppServer) should check allowedToCheckForUpdates before calling this method.

      • maybePrintNagScreen

        public boolean maybePrintNagScreen(java.io.PrintStream out)
        Check to see if there is a new version of the SDK available and, if sufficient time has passed since the last nag, print a nag screen to out. This method always errs on the side of not nagging the user if errors are encountered.

        Callers that do not already communicate with Google explicitly (e.g. the DevAppServer) should check allowedToCheckForUpdates before calling this method.

        Returns:
        true if a nag screen was printed, false otherwise
      • checkJavaVersion

        public boolean checkJavaVersion(java.io.PrintStream out)

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