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org.crsh.shell.impl.command.pipeline
Class CommandInvokerAdapter<C,P,CONSUMER extends CommandContext<? super P>>

java.lang.Object
  extended by org.crsh.shell.impl.command.pipeline.CommandInvokerAdapter<C,P,CONSUMER>
All Implemented Interfaces:
Appendable, CommandContext<Object>, RuntimeContext, InteractionContext, Consumer<Object>, Producer<P,CONSUMER>, Screenable, ScreenContext
 class CommandInvokerAdapter<C,P,CONSUMER extends CommandContext<? super P>>
extends Object

    

    
implements Consumer<Object>, Producer<P,CONSUMER>, CommandContext<Object>

    

      

    

  

  

  

    
Author:

    
Julien Viet

  

  

  

  

    

      Field Summary
    

    

      private  ScreenContextConsumer
      adapter

                .		
    

    

      private  boolean
      charSequenceConsumer

                .		
    

    

      private  boolean
      clsConsumer

                .		
    

    

      (package private)  CommandInvoker<C,P>
      command

                .		
    

    

      private  Class<C>
      consumedType

                .		
    

    

      protected  CONSUMER
      consumer

                .		
    

    

      private  Class<P>
      producedType

                .		
    

    

      private  ScreenContext
      screenContext

                .		
    

    

      private  boolean
      styleConsumer

                .		
    

  
  
  

    

      Constructor Summary
    

    

      CommandInvokerAdapter(CommandInvoker<C,P> command, Class<C> consumedType, Class<P> producedType)

                 		
    

  
  
  

    

      Method Summary
    

    

       Appendable
      append(char c)

                 		
    

    

       Appendable
      append(CharSequence s)

                 		
    

    

       Appendable
      append(CharSequence csq, int start, int end)

                 		
    

    

       Screenable
      append(Style style)

                 		
    

    

       void
      close()

                Close the producer.		
    

    

       Screenable
      cls()

                 		
    

    

       void
      flush()

                Flush the stream.		
    

    

       Map<String,Object>
      getAttributes()

                Returns the current attributes.		
    

    

       Class<Object>
      getConsumedType()

                Returns the class of the element generic type.		
    

    

       int
      getHeight()

                Returns the screen height in chars.		
    

    

       Class<P>
      getProducedType()

                Returns the class of the produced type.		
    

    

       String
      getProperty(String propertyName)

                Returns a generic property, usually this property is resolved by the shell client.		
    

    

       Map<String,Object>
      getSession()

                Returns the current session.		
    

    

       int
      getWidth()

                Returns the screen width in chars.		
    

    

       void
      open(CONSUMER consumer)

                Open the producer with the specified consumer.		
    

    

       void
      provide(Object element)

                Provide an element.		
    

    

       String
      readLine(String msg, boolean echo)

                Display a message and read a line on the console, this method call can be blocking until the user provides a value.		
    

    

       boolean
      releaseAlternateBuffer()

                Release control of the alternate buffer.		
    

    

       boolean
      takeAlternateBuffer()

                Take control of the alternate buffer.		
    

  
 
  

    

      Methods inherited from class java.lang.Object
    

    

      clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    

  
 
  

  

    

      Field Detail
    

  

  
command

  
final CommandInvoker<C,P> command

  

    

      .
      

      

    

  

  

  
  
consumer

  
protected CONSUMER extends CommandContext<? super P> consumer

  

    

      .
      

      

    

  

  

  
  
consumedType

  
private final Class<C> consumedType

  

    

      .
      

      

    

  

  

  
  
producedType

  
private final Class<P> producedType

  

    

      .
      

      

    

  

  

  
  
adapter

  
private ScreenContextConsumer adapter

  

    

      .
      

      

    

  

  

  
  
screenContext

  
private ScreenContext screenContext

  

    

      .
      

      

    

  

  

  
  
charSequenceConsumer

  
private final boolean charSequenceConsumer

  

    

      .
      

      

    

  

  

  
  
styleConsumer

  
private final boolean styleConsumer

  

    

      .
      

      

    

  

  

  
  
clsConsumer

  
private final boolean clsConsumer

  

    

      .
      

      

    

  

  

    

      Constructor Detail
    

  

  
CommandInvokerAdapter

  
CommandInvokerAdapter(CommandInvoker<C,P> command,
                      Class<C> consumedType,
                      Class<P> producedType)

  

  

    

      Method Detail
    

  

  
takeAlternateBuffer

  
public boolean takeAlternateBuffer()
                            throws IOException

  

    
Description copied from interface: InteractionContext

    

      Take control of the alternate buffer. When the alternate buffer is already used nothing happens. The buffer switch should occur when then ScreenContext.flush() method is invoked.
      

    

    

      

        
Specified by:

        
takeAlternateBuffer in interface InteractionContext

      

    

    

      

        
Returns:

        
true if the alternate buffer is shown

        
Throws:

        
IOException

      

    

  

  

  
  
releaseAlternateBuffer

  
public boolean releaseAlternateBuffer()
                               throws IOException

  

    
Description copied from interface: InteractionContext

    

      Release control of the alternate buffer. When the normal buffer is already used nothing happens. The buffer switch should occur when then ScreenContext.flush() method is invoked.
      

    

    

      

        
Specified by:

        
releaseAlternateBuffer in interface InteractionContext

      

    

    

      

        
Returns:

        
true if the usual buffer is shown

        
Throws:

        
IOException

      

    

  

  

  
  
getProperty

  
public String getProperty(String propertyName)

  

    
Description copied from interface: InteractionContext

    

      Returns a generic property, usually this property is resolved by the shell client.
      

    

    

      

        
Specified by:

        
getProperty in interface InteractionContext

      

    

    

      

        
Parameters:

        
propertyName - the property name

        
Returns:

        
the property value

      

    

  

  

  
  
readLine

  
public String readLine(String msg,
                       boolean echo)
                throws IOException,
                       InterruptedException

  

    
Description copied from interface: InteractionContext

    

      Display a message and read a line on the console, this method call can be blocking until the user provides a value. If no line can be read then null is returned.
      

    

    

      

        
Specified by:

        
readLine in interface InteractionContext

      

    

    

      

        
Parameters:

        
msg - the message to display before reading a line

        
echo - wether or not the line read should be echoed when typing

        
Returns:

        
the line read

        
Throws:

        
IOException - any io exception

        
InterruptedException - the thread was interrupted while waiting for the user value

      

    

  

  

  
  
getSession

  
public Map<String,Object> getSession()

  

    
Description copied from interface: RuntimeContext

    

      Returns the current session.
      

    

    

      

        
Specified by:

        
getSession in interface RuntimeContext

      

    

    

      

        
Returns:

        
the session map

      

    

  

  

  
  
getAttributes

  
public Map<String,Object> getAttributes()

  

    
Description copied from interface: RuntimeContext

    

      Returns the current attributes.
      

    

    

      

        
Specified by:

        
getAttributes in interface RuntimeContext

      

    

    

      

        
Returns:

        
the attributes map

      

    

  

  

  
  
getWidth

  
public int getWidth()

  

    
Description copied from interface: ScreenContext

    

      Returns the screen width in chars. When the value is not positive it means the value could not be determined.
      

    

    

      

        
Specified by:

        
getWidth in interface ScreenContext

      

    

    

      

        
Returns:

        
the term width

      

    

  

  

  
  
getHeight

  
public int getHeight()

  

    
Description copied from interface: ScreenContext

    

      Returns the screen height in chars. When the value is not positive it means the value could not be determined.
      

    

    

      

        
Specified by:

        
getHeight in interface ScreenContext

      

    

    

      

        
Returns:

        
the term height

      

    

  

  

  
  
open

  
public void open(CONSUMER consumer)
          throws Exception

  

    
Description copied from interface: Producer

    

      Open the producer with the specified consumer.
      

    

    

      

        
Specified by:

        
open in interface Producer<P,CONSUMER extends CommandContext<? super P>>

      

    

    

      

        
Parameters:

        
consumer - the consumer

        
Throws:

        
Exception - any exception

      

    

  

  

  
  
getConsumedType

  
public Class<Object> getConsumedType()

  

    
Description copied from interface: Consumer

    

      Returns the class of the element generic type.
      

    

    

      

        
Specified by:

        
getConsumedType in interface Consumer<Object>

      

    

    

      

        
Returns:

        
the consumed type

      

    

  

  

  
  
getProducedType

  
public Class<P> getProducedType()

  

    
Description copied from interface: Producer

    

      Returns the class of the produced type.
      

    

    

      

        
Specified by:

        
getProducedType in interface Producer<P,CONSUMER extends CommandContext<? super P>>

      

    

    

      

        
Returns:

        
the produced type

      

    

  

  

  
  
provide

  
public void provide(Object element)
             throws Exception

  

    
Description copied from interface: Consumer

    

      Provide an element.
      

    

    

      

        
Specified by:

        
provide in interface Consumer<Object>

      

    

    

      

        
Parameters:

        
element - the provided element

        
Throws:

        
Exception - any exception

      

    

  

  

  
  
append

  
public Appendable append(char c)
                  throws IOException

  

    

      

        
Specified by:

        
append in interface Appendable

      

    

    

      

        
Throws:

        
IOException

      

    

  

  

  
  
append

  
public Appendable append(CharSequence s)
                  throws IOException

  

    

      

        
Specified by:

        
append in interface Appendable

      

    

    

      

        
Throws:

        
IOException

      

    

  

  

  
  
append

  
public Appendable append(CharSequence csq,
                         int start,
                         int end)
                  throws IOException

  

    

      

        
Specified by:

        
append in interface Appendable

      

    

    

      

        
Throws:

        
IOException

      

    

  

  

  
  
append

  
public Screenable append(Style style)
                  throws IOException

  

    

      

        
Specified by:

        
append in interface Screenable

      

    

    

      

        
Throws:

        
IOException

      

    

  

  

  
  
cls

  
public Screenable cls()
               throws IOException

  

    

      

        
Specified by:

        
cls in interface Screenable

      

    

    

      

        
Throws:

        
IOException

      

    

  

  

  
  
flush

  
public void flush()
           throws IOException

  

    
Description copied from interface: Consumer

    

      Flush the stream.
      

    

    

      

        
Specified by:

        
flush in interface Consumer<Object>

        
Specified by:

        
flush in interface ScreenContext

      

    

    

      

        
Throws:

        
IOException - any io exception

      

    

  

  

  
  
close

  
public void close()
           throws Exception

  

    
Description copied from interface: Producer

    

      Close the producer.
      

    

    

      

        
Specified by:

        
close in interface CommandContext<Object>

        
Specified by:

        
close in interface Producer<P,CONSUMER extends CommandContext<? super P>>

      

    

    

      

        
Throws:

        
Exception - any exception

      

    

  

  

   
  

    

      
        
        

          

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