weka.gui.scripting

## Class Script

- java.lang.Object
- - weka.gui.scripting.Script

- All Implemented Interfaces:
    java.io.Serializable, OptionHandler
  Direct Known Subclasses:
    GroovyScript, JythonScript

      public abstract class Script
      extends java.lang.Object
      implements OptionHandler, java.io.Serializable

  A simple helper class for loading, saving scripts.
  Version:
    $Revision: 10222 $
  Author:
    fracpete (fracpete at waikato dot ac dot nz)
  See Also:
    Serialized Form

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class and Description
    --- | ---
    `static class` | `Script.ScriptThread` The Thread for running a script.

  - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static java.lang.String` | `BACKUP_EXTENSION` the backup extension.

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `Script()` Initializes the script.
    `Script(javax.swing.text.Document doc)` Initializes the script.
    `Script(javax.swing.text.Document doc, java.io.File file)` Initializes the script.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `addScriptFinishedListener(ScriptExecutionListener l)` Adds the given listener to its internal list.
    `void` | `empty()` Empties the document.
    `java.lang.String` | `getContent()` Returns the content.
    `abstract java.lang.String` | `getDefaultExtension()` Returns the default extension.
    `java.io.File` | `getFilename()` Returns the current filename.
    `abstract ExtensionFileFilter[]` | `getFilters()` Returns the extension filters for this type of script.
    `java.lang.String` | `getNewLine()` Returns the new line string in use.
    `java.lang.String[]` | `getOptions()` Gets the current settings of the script.
    `boolean` | `isModified()` Returns whether the script is modified.
    `boolean` | `isRunning()` Returns whether the script is still running.
    `java.util.Enumeration<Option>` | `listOptions()` Returns an enumeration describing the available options.
    `abstract Script.ScriptThread` | `newThread(java.lang.String[] args)` Returns a new thread to execute.
    `boolean` | `open(java.io.File file)` Tries to open the file.
    `void` | `removeScriptFinishedListener(ScriptExecutionListener l)` Removes the given listener from its internal list.
    `void` | `run(java.io.File file, java.lang.String[] args)` Executes the script without loading it first.
    `static void` | `runScript(Script script, java.lang.String[] args)` Runs the specified script.
    `boolean` | `save()` Saves the file under with the current filename.
    `boolean` | `saveAs(java.io.File file)` Saves the file under with the given filename (and updates the internal filename).
    `void` | `setContent(java.lang.String value)` Sets the content.
    `void` | `setOptions(java.lang.String[] options)` Parses a given list of options.
    `void` | `start(java.lang.String[] args)` Executes the script.
    `void` | `stop()` Stops the execution of the script.
    `java.lang.String` | `toString()` Returns the content as string.

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

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

- - ### Field Detail

    - #### BACKUP_EXTENSION

          public static final java.lang.String BACKUP_EXTENSION

      the backup extension.
      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### Script

          public Script()

      Initializes the script.

    - #### Script

          public Script(javax.swing.text.Document doc)

      Initializes the script.
      Parameters:
        `doc` - the document to use as basis

    - #### Script

          public Script(javax.swing.text.Document doc,
                java.io.File file)

      Initializes the script. Automatically loads the specified file, if not null.
      Parameters:
        `doc` - the document to use as basis
        `file` - the file to load (if not null)

  - ### Method Detail

    - #### listOptions

          public java.util.Enumeration<Option> listOptions()

      Returns an enumeration describing the available options.
      Specified by:
        `listOptions` in interface `OptionHandler`
      Returns:
        an enumeration of all the available options

    - #### setOptions

          public void setOptions(java.lang.String[] options)
                          throws java.lang.Exception

      Parses a given list of options.
      Specified by:
        `setOptions` in interface `OptionHandler`
      Parameters:
        `options` - the list of options as an array of strings
      Throws:
        `java.lang.Exception` - if an option is not supported

    - #### getOptions

          public java.lang.String[] getOptions()

      Gets the current settings of the script.
      Specified by:
        `getOptions` in interface `OptionHandler`
      Returns:
        an array of strings suitable for passing to setOptions

    - #### getFilters

          public abstract ExtensionFileFilter[] getFilters()

      Returns the extension filters for this type of script.
      Returns:
        the filters

    - #### getDefaultExtension

          public abstract java.lang.String getDefaultExtension()

      Returns the default extension. Gets automatically added to files if their name doesn't end with this.
      Returns:
        the default extension (incl. the dot)
      See Also:
        `saveAs(File)`

    - #### getFilename

          public java.io.File getFilename()

      Returns the current filename.
      Returns:
        the filename, null if no file loaded/saved

    - #### getNewLine

          public java.lang.String getNewLine()

      Returns the new line string in use.
      Returns:
        the new line string

    - #### isModified

          public boolean isModified()

      Returns whether the script is modified.
      Returns:
        true if the script is modified

    - #### getContent

          public java.lang.String getContent()

      Returns the content.
      Returns:
        the content or null in case of an error

    - #### setContent

          public void setContent(java.lang.String value)

      Sets the content.
      Parameters:
        `value` - the new content

    - #### empty

          public void empty()

      Empties the document.

    - #### open

          public boolean open(java.io.File file)

      Tries to open the file.
      Parameters:
        `file` - the file to open
      Returns:
        true if successfully read

    - #### save

          public boolean save()

      Saves the file under with the current filename.
      Returns:
        true if successfully written

    - #### saveAs

          public boolean saveAs(java.io.File file)

      Saves the file under with the given filename (and updates the internal filename).
      Parameters:
        `file` - the filename to write the content to
      Returns:
        true if successfully written

    - #### newThread

          public abstract Script.ScriptThread newThread(java.lang.String[] args)

      Returns a new thread to execute.
      Parameters:
        `args` - optional commandline arguments
      Returns:
        the new thread object

    - #### start

          public void start(java.lang.String[] args)
                     throws java.lang.Exception

      Executes the script.
      Parameters:
        `args` - optional commandline arguments, can be null
      Throws:
        `java.lang.Exception` - if checks or execution fail

    - #### stop

          public void stop()

      Stops the execution of the script.

    - #### run

          public void run(java.io.File file,
                 java.lang.String[] args)

      Executes the script without loading it first.
      Parameters:
        `file` - the script to execute
        `args` - the commandline parameters for the script

    - #### isRunning

          public boolean isRunning()

      Returns whether the script is still running.
      Returns:
        true if the script is still running

    - #### addScriptFinishedListener

          public void addScriptFinishedListener(ScriptExecutionListener l)

      Adds the given listener to its internal list.
      Parameters:
        `l` - the listener to add

    - #### removeScriptFinishedListener

          public void removeScriptFinishedListener(ScriptExecutionListener l)

      Removes the given listener from its internal list.
      Parameters:
        `l` - the listener to remove

    - #### toString

          public java.lang.String toString()

      Returns the content as string.
      Overrides:
        `toString` in class `java.lang.Object`
      Returns:
        the current content

    - #### runScript

          public static void runScript(Script script,
                       java.lang.String[] args)
                                throws java.lang.Exception

      Runs the specified script. All options that weren't "consumed" (like "-s" for the script filename), will be used as commandline arguments for the actual script.
      Parameters:
        `script` - the script object to use
        `args` - the commandline arguments
      Throws:
        `java.lang.Exception` - if execution fails