org.eclipse.smila.datamodel.json
Class JsonSerializationUtils

java.lang.Object
  org.eclipse.smila.datamodel.json.JsonSerializationUtils

public class JsonSerializationUtils
extends java.lang.Object

Utility class for converting datamodel objects to JSON objects and vice versa.

Author:

aweber

Field Summary

protected DataFactory	_dataFactory Data factory to use.
protected ValueFormatHelper	_formatHelper helper for parsing date/datetimes.
protected IpcFactory	_jsonFactory JSON IPC factory.
static java.lang.String	ENCODING Encoding to use for String (de)serialization.

Constructor Summary

JsonSerializationUtils()

Method Summary

void	any2JsonStream(java.io.OutputStream stream, Any object) Converts Any object to JSON stream.
void	any2Stream(IpcStreamWriter writer, Any object) Converts Any object to IPC stream.
Record	jsonObject2record(java.lang.String jsonString) Converts JSON string to record object.
Any	jsonStream2any(java.io.InputStream stream) Converts JSON stream to Any object.
Record	jsonStream2record(java.io.InputStream stream) Converts JSON stream to record object.
java.lang.String	map2JsonObject(AnyMap object) Converts AnyMap object to JSON object.
void	map2JsonStream(java.io.OutputStream stream, AnyMap object) Converts AnyMap object to JSON stream.
java.lang.String	record2JsonObject(Record record) Converts record object to JSON object.
void	record2JsonStream(java.io.OutputStream stream, Record record) Converts record object to JSON stream.
void	record2Stream(IpcStreamWriter writer, Record record) Converts record object to stream.
Any	stream2any(IpcStreamReader reader) Converts stream to record object.
Record	stream2record(IpcStreamReader reader) Converts stream to record object.
Record	stream2record(IpcStreamReader reader, boolean required) Converts stream to record object.

Methods inherited from class java.lang.Object

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

Field Detail

ENCODING

public static final java.lang.String ENCODING

Encoding to use for String (de)serialization.

See Also:

Constant Field Values

_dataFactory

protected final DataFactory _dataFactory

Data factory to use.

_jsonFactory

protected final IpcFactory _jsonFactory

JSON IPC factory.

_formatHelper

protected final ValueFormatHelper _formatHelper

helper for parsing date/datetimes.

Constructor Detail

JsonSerializationUtils

public JsonSerializationUtils()

Method Detail

jsonObject2record

public Record jsonObject2record(java.lang.String jsonString)
                         throws java.io.IOException

Converts JSON string to record object.

Parameters:

jsonString - input object

Returns:

record object

Throws:

java.io.IOException - in case of conversion error

jsonStream2record

public Record jsonStream2record(java.io.InputStream stream)
                         throws java.io.IOException

Converts JSON stream to record object.

Parameters:

stream - an input stream

Returns:

a record with no Id set

Throws:

java.io.IOException - in case of conversion error

jsonStream2any

public Any jsonStream2any(java.io.InputStream stream)
                   throws java.io.IOException

Converts JSON stream to Any object.

Parameters:

stream - an input stream

Returns:

a record with no Id set

Throws:

java.io.IOException - in case of conversion error

stream2record

public Record stream2record(IpcStreamReader reader)
                     throws java.io.IOException

Converts stream to record object.

Parameters:

reader - an ipc reader (binary/json)

Returns:

a record with no Id set

Throws:

java.io.IOException - IO errors from underlying stream.

java.lang.IllegalStateException - parse errors.

stream2record

public Record stream2record(IpcStreamReader reader,
                            boolean required)
                     throws java.io.IOException

Converts stream to record object.

Parameters:

reader - an ipc reader (binary/json)

required - if true an exception if there is no next record on the stream. if false, just return null.

Returns:

a record with no Id set

Throws:

java.io.IOException - IO errors from underlying stream.

java.lang.IllegalStateException - parse errors.

stream2any

public Any stream2any(IpcStreamReader reader)
               throws java.io.IOException

Converts stream to record object.

Parameters:

reader - an ipc reader (binary/json)

Returns:

an Any

Throws:

java.io.IOException - in case of conversion error

record2JsonObject

public java.lang.String record2JsonObject(Record record)
                                   throws java.io.IOException

Converts record object to JSON object.

Parameters:

record - input record

Returns:

JSON string representing the record.

Throws:

java.io.IOException - in case of conversion error

record2JsonStream

public void record2JsonStream(java.io.OutputStream stream,
                              Record record)
                       throws java.io.IOException

Converts record object to JSON stream.

Parameters:

stream - output stream

record - input record

Throws:

java.io.IOException - in case of conversion error

map2JsonStream

public void map2JsonStream(java.io.OutputStream stream,
                           AnyMap object)
                    throws java.io.IOException

Converts AnyMap object to JSON stream.

Parameters:

stream - output stream

object - input record

Throws:

java.io.IOException - in case of conversion error

map2JsonObject

public java.lang.String map2JsonObject(AnyMap object)
                                throws java.io.IOException

Converts AnyMap object to JSON object.

Parameters:

object - an AnyMap object

Returns:

JSON string representing the input object.

Throws:

java.io.IOException - in case of conversion error

any2JsonStream

public void any2JsonStream(java.io.OutputStream stream,
                           Any object)
                    throws java.io.IOException

Converts Any object to JSON stream.

Parameters:

stream - output stream

object - input object

Throws:

java.io.IOException - in case of conversion error

any2Stream

public void any2Stream(IpcStreamWriter writer,
                       Any object)
                throws java.io.IOException

Converts Any object to IPC stream.

Parameters:

writer - an IPC writer

object - input object

Throws:

java.io.IOException - in case of conversion error

record2Stream

public void record2Stream(IpcStreamWriter writer,
                          Record record)
                   throws java.io.IOException

Converts record object to stream.

Parameters:

writer - an ipc stream writer (bon/json)

record - input record

Throws:

java.io.IOException - in case of conversion error