com.google.appengine.tools.admin

## Class Application

- java.lang.Object
- - com.google.appengine.tools.admin.Application

- All Implemented Interfaces:
    com.google.appengine.tools.admin.GenericApplication

      public class Application
      extends java.lang.Object
      implements com.google.appengine.tools.admin.GenericApplication

  An App Engine application. You can `read` an `Application` from a path, and `create` an `AppAdmin` to upload, create indexes, or otherwise manage it.

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from interface com.google.appengine.tools.admin.GenericApplication

      `com.google.appengine.tools.admin.GenericApplication.ErrorHandler`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `cleanStagingDirectory()` deletes the staging directory, if one was created.
    `java.io.File` | `createStagingDirectory(AppAdminFactory.ApplicationProcessingOptions opts, com.google.appengine.tools.admin.ResourceLimits resourceLimits)` Creates a new staging directory, if needed, or returns the existing one if already created.
    `java.lang.String` | `getApiVersion()` Returns the desired API version for the current application, or `"none"` if no API version was used.
    `AppEngineWebXml` | `getAppEngineWebXml()` Returns the AppEngineWebXml describing the application.
    `java.lang.String` | `getAppId()` Returns the application identifier, from the AppEngineWebXml config
    `java.lang.String` | `getAppYaml()` Returns the app.yaml string.
    `BackendsXml` | `getBackendsXml()` Returns the BackendsXml describing the applications' backends.
    `CronXml` | `getCronXml()` Returns the CronXml describing the applications' cron jobs.
    `DosXml` | `getDosXml()` Returns the DosXml describing the applications' DoS entries.
    `java.util.List<com.google.appengine.tools.admin.GenericApplication.ErrorHandler>` | `getErrorHandlers()` Returns the list of error handlers for this application
    `IndexesXml` | `getIndexesXml()` Returns the IndexesXml describing the applications' indexes.
    `java.lang.String` | `getInstanceClass()` Returns the application instance class name or null if not specified.
    `java.lang.String` | `getMimeTypeIfStatic(java.lang.String path)` Returns the mime-type if path corresponds to static content, `null` otherwise.
    `java.lang.String` | `getPagespeedYaml()` Returns the pagespeed.yaml describing the applications' PageSpeed configuration.
    `java.lang.String` | `getPath()` Returns a path to an exploded WAR directory for the application.
    `QueueXml` | `getQueueXml()` Returns the QueueXml describing the applications' task queues.
    `java.lang.String` | `getServer()` Returns the application server name or null if not specified.
    `java.lang.String` | `getSourceLanguage()` Returns the application source-language or null if not specified.
    `java.io.File` | `getStagingDir()` Returns the staging directory, or `null` if none has been created.
    `java.lang.String` | `getVersion()` Returns the application version, from the AppEngineWebXml config
    `WebXml` | `getWebXml()` Returns the WebXml describing the applications' servlets and generic web application information.
    `static java.lang.String` | `guessContentTypeFromName(java.lang.String fileName)`
    `boolean` | `isPrecompilationEnabled()` Returns whether precompilation is enabled for this application
    `static Application` | `readApplication(java.lang.String path)` Reads the App Engine application from `path`.
    `static Application` | `readApplication(java.lang.String path, java.lang.String appId, java.lang.String appVersion)` Reads the App Engine application from `path`.
    `static void` | `recursiveDelete(java.io.File dead)` Recursive directory deletion.
    `void` | `resetProgress()`
    `void` | `setDetailsWriter(java.io.PrintWriter detailsWriter)`
    `void` | `setExternalResourceDir(java.lang.String path)` Sets the external resource directory.
    `void` | `setListener(UpdateListener l)`
    `void` | `statusUpdate(java.lang.String message)`
    `void` | `statusUpdate(java.lang.String message, int amount)`

    - ### Methods inherited from class java.lang.Object

      `equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Method Detail

    - #### readApplication

          public static Application readApplication(java.lang.String path)
                                             throws java.io.IOException

      Reads the App Engine application from `path`. The path may either be a WAR file or the root of an exploded WAR directory.
      Parameters:
        `path` - a not `null` path.
      Throws:
        `java.io.IOException` - if an error occurs while trying to read the `Application`.
        `com.google.apphosting.utils.config.AppEngineConfigException` - if the `Application's` appengine-web.xml file is malformed.

    - #### setExternalResourceDir

          public void setExternalResourceDir(java.lang.String path)

      Sets the external resource directory. Call this method before invoking `#createStagingDirectory(ApplicationProcessingOptions, ResourceLimits)`.

      The external resource directory is a directory outside of the war directory where additional files live. These files will be copied into the staging directory during an upload, after the war directory is copied there. Consequently if there are any name collisions the files in the external resource directory will win.

      Parameters:
        `path` - a not `null` path to an existing directory.
      Throws:
        `java.lang.IllegalArgumentException` - If `path` does not refer to an existing directory.

    - #### readApplication

          public static Application readApplication(java.lang.String path,
                                    java.lang.String appId,
                                    java.lang.String appVersion)
                                             throws java.io.IOException

      Reads the App Engine application from `path`. The path may either be a WAR file or the root of an exploded WAR directory.
      Parameters:
        `path` - a not `null` path.
        `appId` - if non-null, use this as an application id override.
        `appVersion` - if non-null, use this as an application version override.
      Throws:
        `java.io.IOException` - if an error occurs while trying to read the `Application`.
        `com.google.apphosting.utils.config.AppEngineConfigException` - if the `Application's` appengine-web.xml file is malformed.

    - #### getAppId

          public java.lang.String getAppId()

      Returns the application identifier, from the AppEngineWebXml config
      Specified by:
        `getAppId` in interface `com.google.appengine.tools.admin.GenericApplication`
      Returns:
        application identifier

    - #### getVersion

          public java.lang.String getVersion()

      Returns the application version, from the AppEngineWebXml config
      Specified by:
        `getVersion` in interface `com.google.appengine.tools.admin.GenericApplication`
      Returns:
        application version

    - #### getSourceLanguage

          public java.lang.String getSourceLanguage()

      Description copied from interface: `com.google.appengine.tools.admin.GenericApplication`
      Returns the application source-language or null if not specified.
      Specified by:
        `getSourceLanguage` in interface `com.google.appengine.tools.admin.GenericApplication`

    - #### getServer

          public java.lang.String getServer()

      Description copied from interface: `com.google.appengine.tools.admin.GenericApplication`
      Returns the application server name or null if not specified.
      Specified by:
        `getServer` in interface `com.google.appengine.tools.admin.GenericApplication`

    - #### getInstanceClass

          public java.lang.String getInstanceClass()

      Description copied from interface: `com.google.appengine.tools.admin.GenericApplication`
      Returns the application instance class name or null if not specified.
      Specified by:
        `getInstanceClass` in interface `com.google.appengine.tools.admin.GenericApplication`

    - #### isPrecompilationEnabled

          public boolean isPrecompilationEnabled()

      Description copied from interface: `com.google.appengine.tools.admin.GenericApplication`
      Returns whether precompilation is enabled for this application
      Specified by:
        `isPrecompilationEnabled` in interface `com.google.appengine.tools.admin.GenericApplication`
      Returns:
        precompilation setting

    - #### getErrorHandlers

          public java.util.List<com.google.appengine.tools.admin.GenericApplication.ErrorHandler> getErrorHandlers()

      Description copied from interface: `com.google.appengine.tools.admin.GenericApplication`
      Returns the list of error handlers for this application
      Specified by:
        `getErrorHandlers` in interface `com.google.appengine.tools.admin.GenericApplication`
      Returns:
        error handlers

    - #### getMimeTypeIfStatic

          public java.lang.String getMimeTypeIfStatic(java.lang.String path)

      Description copied from interface: `com.google.appengine.tools.admin.GenericApplication`
      Returns the mime-type if path corresponds to static content, `null` otherwise.
      Specified by:
        `getMimeTypeIfStatic` in interface `com.google.appengine.tools.admin.GenericApplication`
      Returns:
        mime-type, possibly `null`

    - #### guessContentTypeFromName

          public static java.lang.String guessContentTypeFromName(java.lang.String fileName)

      Parameters:
        `fileName` - path of a file with extension
      Returns:
        the mimetype of the file (or application/octect-stream if not recognized)

    - #### getAppEngineWebXml

          public AppEngineWebXml getAppEngineWebXml()

      Returns the AppEngineWebXml describing the application.
      Returns:
        a not `null` deployment descriptor

    - #### getCronXml

          public CronXml getCronXml()

      Returns the CronXml describing the applications' cron jobs.
      Specified by:
        `getCronXml` in interface `com.google.appengine.tools.admin.GenericApplication`
      Returns:
        a cron descriptor, possibly empty or `null`

    - #### getQueueXml

          public QueueXml getQueueXml()

      Returns the QueueXml describing the applications' task queues.
      Specified by:
        `getQueueXml` in interface `com.google.appengine.tools.admin.GenericApplication`
      Returns:
        a queue descriptor, possibly empty or `null`

    - #### getDosXml

          public DosXml getDosXml()

      Returns the DosXml describing the applications' DoS entries.
      Specified by:
        `getDosXml` in interface `com.google.appengine.tools.admin.GenericApplication`
      Returns:
        a dos descriptor, possibly empty or `null`

    - #### getPagespeedYaml

          public java.lang.String getPagespeedYaml()

      Returns the pagespeed.yaml describing the applications' PageSpeed configuration.
      Specified by:
        `getPagespeedYaml` in interface `com.google.appengine.tools.admin.GenericApplication`
      Returns:
        a pagespeed.yaml string, possibly empty or `null`

    - #### getIndexesXml

          public IndexesXml getIndexesXml()

      Returns the IndexesXml describing the applications' indexes.
      Specified by:
        `getIndexesXml` in interface `com.google.appengine.tools.admin.GenericApplication`
      Returns:
        a index descriptor, possibly empty or `null`

    - #### getWebXml

          public WebXml getWebXml()

      Returns the WebXml describing the applications' servlets and generic web application information.
      Returns:
        a WebXml descriptor, possibly empty but not `null`

    - #### getBackendsXml

          public BackendsXml getBackendsXml()

      Description copied from interface: `com.google.appengine.tools.admin.GenericApplication`
      Returns the BackendsXml describing the applications' backends.
      Specified by:
        `getBackendsXml` in interface `com.google.appengine.tools.admin.GenericApplication`
      Returns:
        a backends descriptor, possibly empty or `null`

    - #### getApiVersion

          public java.lang.String getApiVersion()

      Returns the desired API version for the current application, or `"none"` if no API version was used.
      Specified by:
        `getApiVersion` in interface `com.google.appengine.tools.admin.GenericApplication`
      Throws:
        `java.lang.IllegalStateException` - if createStagingDirectory has not been called.

    - #### getPath

          public java.lang.String getPath()

      Returns a path to an exploded WAR directory for the application. This may be a temporary directory.
      Specified by:
        `getPath` in interface `com.google.appengine.tools.admin.GenericApplication`
      Returns:
        a not `null` path pointing to a directory

    - #### getStagingDir

          public java.io.File getStagingDir()

      Returns the staging directory, or `null` if none has been created.
      Specified by:
        `getStagingDir` in interface `com.google.appengine.tools.admin.GenericApplication`

    - #### resetProgress

          public void resetProgress()

      Specified by:
        `resetProgress` in interface `com.google.appengine.tools.admin.GenericApplication`

    - #### createStagingDirectory

          public java.io.File createStagingDirectory(AppAdminFactory.ApplicationProcessingOptions opts,
                                            com.google.appengine.tools.admin.ResourceLimits resourceLimits)
                                              throws java.io.IOException

      Creates a new staging directory, if needed, or returns the existing one if already created.
      Specified by:
        `createStagingDirectory` in interface `com.google.appengine.tools.admin.GenericApplication`
      Parameters:
        `opts` - User-specified options for processing the application.
        `resourceLimits` - Various resource limits provided by the cloud.
      Returns:
        staging directory
      Throws:
        `java.io.IOException`

    - #### cleanStagingDirectory

          public void cleanStagingDirectory()

      deletes the staging directory, if one was created.
      Specified by:
        `cleanStagingDirectory` in interface `com.google.appengine.tools.admin.GenericApplication`

    - #### recursiveDelete

          public static void recursiveDelete(java.io.File dead)

      Recursive directory deletion.

    - #### setListener

          public void setListener(UpdateListener l)

      Specified by:
        `setListener` in interface `com.google.appengine.tools.admin.GenericApplication`

    - #### setDetailsWriter

          public void setDetailsWriter(java.io.PrintWriter detailsWriter)

      Specified by:
        `setDetailsWriter` in interface `com.google.appengine.tools.admin.GenericApplication`

    - #### statusUpdate

          public void statusUpdate(java.lang.String message,
                          int amount)

      Specified by:
        `statusUpdate` in interface `com.google.appengine.tools.admin.GenericApplication`

    - #### statusUpdate

          public void statusUpdate(java.lang.String message)

      Specified by:
        `statusUpdate` in interface `com.google.appengine.tools.admin.GenericApplication`

    - #### getAppYaml

          public java.lang.String getAppYaml()

      Returns the app.yaml string.
      Specified by:
        `getAppYaml` in interface `com.google.appengine.tools.admin.GenericApplication`
      Returns:
        application configuration yaml string
      Throws:
        `java.lang.IllegalStateException` - if createStagingDirectory has not been called.