Package jmri.server.json

Class JsonConnection

java.lang.Object

jmri.jmris.JmriConnection

jmri.server.json.JsonConnection

public class JsonConnection
extends JmriConnection

Abstraction of DataOutputStream and WebSocket.Connection classes for JSON clients.

Field Summary

Fields

Modifier and Type	Field	Description
protected JsonServerPreferences	preferences
protected JsonSchemaServiceCache	schemas

Constructor Summary

Constructors

Constructor	Description
JsonConnection(DataOutputStream output)
JsonConnection(org.eclipse.jetty.websocket.api.Session connection)

Method Summary

Modifier and Type	Method	Description
com.fasterxml.jackson.databind.ObjectMapper	getObjectMapper()	Get the ObjectMapper for this connection.
String	getVersion()
void	sendMessage(com.fasterxml.jackson.databind.JsonNode message, int id)	Send a JsonNode to the instantiated connection.
void	sendMessage(com.fasterxml.jackson.databind.JsonNode message, JsonRequest request)	Send a JsonNode to the instantiated connection.
void	setVersion(String version)

Methods inherited from class jmri.jmris.JmriConnection

close, getDataOutputStream, getLocale, getSession, sendMessage, setLocale

Methods inherited from class java.lang.Object

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

Field Details

preferences

protected final JsonServerPreferences preferences

schemas

protected final JsonSchemaServiceCache schemas

Constructor Details

JsonConnection

public JsonConnection(org.eclipse.jetty.websocket.api.Session connection)

JsonConnection

public JsonConnection(DataOutputStream output)

Method Details

getObjectMapper

@Nonnull public com.fasterxml.jackson.databind.ObjectMapper getObjectMapper()

Get the ObjectMapper for this connection.

Returns:

the ObjectMapper

sendMessage

public void sendMessage(@Nonnull com.fasterxml.jackson.databind.JsonNode message, @Nonnull JsonRequest request) throws IOException

Send a JsonNode to the instantiated connection.

This method throws an IOException so the server or servlet holding the connection open can respond to the exception.

If JsonServerPreferences.getValidateServerMessages() is true, a message is sent to the client that validation failed instead of the intended message.

Overriding methods must ensure that message is only sent if validated.

Parameters:

message - the object or array to send as a message

request - the JSON request

Throws:

IOException - if unable to send the message

sendMessage

public void sendMessage(@Nonnull com.fasterxml.jackson.databind.JsonNode message, int id) throws IOException

Send a JsonNode to the instantiated connection.

This method throws an IOException so the server or servlet holding the connection open can respond to the exception.

If JsonServerPreferences.getValidateServerMessages() is true, a message is sent to the client that validation failed instead of the intended message.

Overriding methods must ensure that message is only sent if validated.

Parameters:

message - the object or array to send as a message

id - the message id set by the client

Throws:

IOException - if unable to send the message

getVersion

public String getVersion()

setVersion

public void setVersion(String version)