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## org.hyperic.sigar.shell
Class ShellBase

    java.lang.Object
      org.hyperic.sigar.shell.ShellBase

All Implemented Interfaces:
  ShellCommandMapper, SIGINT, GetlineCompleter

Direct Known Subclasses:
  Shell

    public abstract class ShellBase

extends java.lang.Object
implements ShellCommandMapper, GetlineCompleter, SIGINT

Field Summary
`protected java.io.PrintStream` | `err`
`protected Getline` | `gl`
`protected java.io.PrintStream` | `out`
`static java.lang.String` | `PROP_PAGE_SIZE`

Constructor Summary
`ShellBase()`

Method Summary
`java.lang.String` | `complete(ShellCommandHandler handler, java.lang.String line)`
`java.lang.String` | `complete(java.lang.String line)`
`java.util.Iterator` | `getCommandNameIterator()` Get an iterator for the command names.
`org.hyperic.sigar.pager.PageControl` | `getDefaultPageControl()`
`java.io.PrintStream` | `getErrStream()`
`Getline` | `getGetline()`
`ShellCommandHandler` | `getHandler(java.lang.String command)` Get the command handler for a command.
`java.lang.String` | `getHiddenInput(java.lang.String prompt)` If a command needs additional input via the console, they can get it this way.
`java.lang.String` | `getInput(java.lang.String prompt)` If a command needs additional input via the console, they can get it this way.
`java.lang.String` | `getInput(java.lang.String prompt, boolean addToHistory)` If a command needs additional input via the console, they can get it this way.
`java.io.PrintStream` | `getOutStream()`
`int` | `getPageSize()` Get the current page size used when paging data.
`void` | `handleCommand(java.lang.String line)`
`void` | `handleCommand(java.lang.String line, java.lang.String[] args)`
`boolean` | `handlerIsHidden(java.lang.String handlerName)`
`void` | `handleSIGINT()`
`boolean` | `hasCompleter(ShellCommandHandler handler)`
`void` | `init(java.lang.String applicationName, java.io.PrintStream out, java.io.PrintStream err)`
`void` | `initHistory()`
`void` | `initHistory(java.io.File file)`
`boolean` | `isRedirected()` Check to see if the currently running shell command is being redirected to a file.
`void` | `performPaging(org.hyperic.sigar.pager.PageFetcher fetcher)`
`void` | `performPaging(org.hyperic.sigar.pager.PageFetcher fetcher, org.hyperic.sigar.pager.PageControl control)`
`void` | `processCommand(ShellCommandHandler handler, java.lang.String[] args)`
`void` | `readRCFile(java.io.File rcFile, boolean echoCommands)` Read a .rc file into the shell, invoking everything in it (without saving the actions to history)
`void` | `registerCommandHandler(java.lang.String commandName, ShellCommandHandler handler)` Register a new command handler.
`void` | `registerSigIntHandler()`
`void` | `run()`
`void` | `sendToErrStream(java.lang.String s)` Write a string to this shell's output stream.
`void` | `sendToOutStream(java.lang.String s)` Write a string to this shell's output stream.
`void` | `setHandlerHidden(java.lang.String handlerName, boolean isHidden)`
`void` | `setPageSize(int size)` Set the page size for data paging.
`void` | `setPrompt(java.lang.String prompt)` Change the prompt
`void` | `shutdown()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### PROP_PAGE_SIZE

    public static final java.lang.String PROP_PAGE_SIZE

See Also:
  Constant Field Values

### gl

    protected Getline gl

### out

    protected java.io.PrintStream out

### err

    protected java.io.PrintStream err

Constructor Detail

### ShellBase

    public ShellBase()

Method Detail

### handleSIGINT

    public void handleSIGINT()

  Specified by:
    `handleSIGINT` in interface `SIGINT`

### initHistory

    public void initHistory()
                     throws java.io.IOException

  Throws:
    `java.io.IOException`

### initHistory

    public void initHistory(java.io.File file)
                     throws java.io.IOException

  Throws:
    `java.io.IOException`

### registerSigIntHandler

    public void registerSigIntHandler()

### init

    public void init(java.lang.String applicationName,
                     java.io.PrintStream out,
                     java.io.PrintStream err)

### readRCFile

    public void readRCFile(java.io.File rcFile,
                           boolean echoCommands)
                    throws java.io.IOException

  Read a .rc file into the shell, invoking everything in it (without saving the actions to history)

  Parameters:
    `rcFile` - File to read
  Throws:
    `java.io.IOException`

### setPrompt

    public void setPrompt(java.lang.String prompt)

  Change the prompt

  Parameters:
    `prompt` -

### registerCommandHandler

    public void registerCommandHandler(java.lang.String commandName,
                                       ShellCommandHandler handler)
                                throws ShellCommandInitException

  Register a new command handler.

  Parameters:
    `commandName` - The command that this handler will process.
    `handler` - The handler to register.
  Throws:
    `ShellCommandInitException`

### getInput

    public java.lang.String getInput(java.lang.String prompt)
                              throws java.io.EOFException,
                                     java.io.IOException

  If a command needs additional input via the console, they can get it this way.

  Parameters:
    `prompt` - The prompt to display.
  Returns:
    The data that the user typed in.
  Throws:
    `java.io.EOFException`
    `java.io.IOException`

### getInput

    public java.lang.String getInput(java.lang.String prompt,
                                     boolean addToHistory)
                              throws java.io.EOFException,
                                     java.io.IOException

  If a command needs additional input via the console, they can get it this way.

  Parameters:
    `prompt` - The prompt to display.
    `addToHistory` - If true, the input entered will be added to the history file.
  Returns:
    The data that the user typed in.
  Throws:
    `java.io.EOFException`
    `java.io.IOException`

### getHiddenInput

    public java.lang.String getHiddenInput(java.lang.String prompt)
                                    throws java.io.EOFException,
                                           java.io.IOException

  If a command needs additional input via the console, they can get it this way. The characters that the user types are not echoed.

  Parameters:
    `prompt` - The prompt to display.
  Returns:
    The data that the user typed in.
  Throws:
    `java.io.EOFException`
    `java.io.IOException`

### sendToOutStream

    public void sendToOutStream(java.lang.String s)

  Write a string to this shell's output stream.

  Parameters:
    `s` - The string to write to the output stream.

### sendToErrStream

    public void sendToErrStream(java.lang.String s)

  Write a string to this shell's output stream.

  Parameters:
    `s` - The string to write to the output stream.

### run

    public void run()

### handleCommand

    public void handleCommand(java.lang.String line)

### handleCommand

    public void handleCommand(java.lang.String line,
                              java.lang.String[] args)

### processCommand

    public void processCommand(ShellCommandHandler handler,
                               java.lang.String[] args)
                        throws ShellCommandUsageException,
                               ShellCommandExecException

  Throws:
    `ShellCommandUsageException`
    `ShellCommandExecException`

### getOutStream

    public java.io.PrintStream getOutStream()

### getErrStream

    public java.io.PrintStream getErrStream()

### getGetline

    public Getline getGetline()

### hasCompleter

    public boolean hasCompleter(ShellCommandHandler handler)

### complete

    public java.lang.String complete(ShellCommandHandler handler,
                                     java.lang.String line)

### complete

    public java.lang.String complete(java.lang.String line)

  Specified by:
    `complete` in interface `GetlineCompleter`

### getHandler

    public ShellCommandHandler getHandler(java.lang.String command)

  Description copied from interface: `ShellCommandMapper`
  Get the command handler for a command.

  Specified by:
    `getHandler` in interface `ShellCommandMapper`
  See Also:
    `ShellCommandMapper.getHandler(java.lang.String)`

### setHandlerHidden

    public void setHandlerHidden(java.lang.String handlerName,
                                 boolean isHidden)

### handlerIsHidden

    public boolean handlerIsHidden(java.lang.String handlerName)

### getCommandNameIterator

    public java.util.Iterator getCommandNameIterator()

  Description copied from interface: `ShellCommandMapper`
  Get an iterator for the command names.

  Specified by:
    `getCommandNameIterator` in interface `ShellCommandMapper`
  See Also:
    `ShellCommandMapper.getCommandNameIterator()`

### shutdown

    public void shutdown()

### isRedirected

    public boolean isRedirected()

  Check to see if the currently running shell command is being redirected to a file.

  Returns:
    true if the shell is redirecting to a file, else false

### setPageSize

    public void setPageSize(int size)

  Set the page size for data paging.

  Parameters:
    `size` - Number of rows to include in a page of data -- if 0, then unlimited rows will be used.

### getPageSize

    public int getPageSize()

  Get the current page size used when paging data.

  Returns:
    the # of rows in the current page size.

### getDefaultPageControl

    public org.hyperic.sigar.pager.PageControl getDefaultPageControl()

### performPaging

    public void performPaging(org.hyperic.sigar.pager.PageFetcher fetcher)
                       throws org.hyperic.sigar.pager.PageFetchException

  Throws:
    `org.hyperic.sigar.pager.PageFetchException`

### performPaging

    public void performPaging(org.hyperic.sigar.pager.PageFetcher fetcher,
                              org.hyperic.sigar.pager.PageControl control)
                       throws org.hyperic.sigar.pager.PageFetchException

  Throws:
    `org.hyperic.sigar.pager.PageFetchException`

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