org.eclipse.smila.ipc.json
Class JsonStreamReader

java.lang.Object
  org.eclipse.smila.ipc.json.JsonStreamReader

All Implemented Interfaces:

IpcStreamReader

public class JsonStreamReader
extends java.lang.Object
implements IpcStreamReader

IPC reader implementation for the JSON protocol.

Author:

aweber

Method Summary

void	close() Closes the reader and the underlying stream.
void	closeWithoutStream() Closes the reader but NOT the underlying stream.
boolean	currentBoolValue() Returns the current token value as boolean value.
double	currentDoubleValue() Returns the current token value as double value.
long	currentLongValue() Returns the current token value as long value.
java.lang.String	currentStringValue() Returns the current token value as string.
java.io.InputStream	getStream() Not supported by this implementation, so this always throws an UnsupportedOperationException.
boolean	nextBoolValue() Shortcut for nextToken() + currentBoolValue().
double	nextDoubleValue() Shortcut for nextToken() + currentDoubleValue().
long	nextLongValue() Shortcut for nextToken() + currentLongValue().
java.lang.String	nextStringValue() Shortcut for nextToken() + currentStringValue().
IpcToken	nextToken() Returns the next token.
<T> T	readObject(java.lang.Class<T> type) read object of desired class from JSON stream.

Methods inherited from class java.lang.Object

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

Method Detail

close

public void close()
           throws java.io.IOException

Closes the reader and the underlying stream.

Specified by:

close in interface IpcStreamReader

Throws:

java.io.IOException - any error

closeWithoutStream

public void closeWithoutStream()
                        throws java.io.IOException

Closes the reader but NOT the underlying stream.

Specified by:

closeWithoutStream in interface IpcStreamReader

Throws:

java.io.IOException - any error

currentBoolValue

public boolean currentBoolValue()
                         throws java.io.IOException

Returns the current token value as boolean value.

Specified by:

currentBoolValue in interface IpcStreamReader

Returns:

current token value as boolean

Throws:

java.io.IOException - any error

currentDoubleValue

public double currentDoubleValue()
                          throws java.io.IOException

Returns the current token value as double value.

Specified by:

currentDoubleValue in interface IpcStreamReader

Returns:

current token value as double

Throws:

java.io.IOException - any error

currentLongValue

public long currentLongValue()
                      throws java.io.IOException

Returns the current token value as long value.

Specified by:

currentLongValue in interface IpcStreamReader

Returns:

current token value as long value

Throws:

java.io.IOException - any error

currentStringValue

public java.lang.String currentStringValue()
                                    throws java.io.IOException

Returns the current token value as string.

Specified by:

currentStringValue in interface IpcStreamReader

Returns:

current token value as string

Throws:

java.io.IOException - any error

nextBoolValue

public boolean nextBoolValue()
                      throws java.io.IOException

Shortcut for nextToken() + currentBoolValue().

Specified by:

nextBoolValue in interface IpcStreamReader

Returns:

next token value as boolean.

Throws:

java.io.IOException - any error.

nextDoubleValue

public double nextDoubleValue()
                       throws java.io.IOException

Shortcut for nextToken() + currentDoubleValue().

Specified by:

nextDoubleValue in interface IpcStreamReader

Returns:

next token value as double

Throws:

java.io.IOException - any error

nextLongValue

public long nextLongValue()
                   throws java.io.IOException

Shortcut for nextToken() + currentLongValue().

Specified by:

nextLongValue in interface IpcStreamReader

Returns:

next token value as long

Throws:

java.io.IOException - any error

nextStringValue

public java.lang.String nextStringValue()
                                 throws java.io.IOException

Shortcut for nextToken() + currentStringValue().

Specified by:

nextStringValue in interface IpcStreamReader

Returns:

next token value as string

Throws:

java.io.IOException - any error

nextToken

public IpcToken nextToken()
                   throws java.io.IOException

Returns the next token.

Specified by:

nextToken in interface IpcStreamReader

Returns:

next token

Throws:

java.io.IOException - any error

readObject

public <T> T readObject(java.lang.Class<T> type)
             throws java.io.IOException

read object of desired class from JSON stream.

Type Parameters:

T - desired class.

Parameters:

type - desired class.

Returns:

instance of desired class.

Throws:

java.io.IOException - parse error.

getStream

public java.io.InputStream getStream()

Not supported by this implementation, so this always throws an UnsupportedOperationException. We have no access to internal stream here, stream is wrapped in Jackson implementation.

Specified by:

getStream in interface IpcStreamReader

Returns:

nothing. always throws an exception.