de.lmu.ifi.dbs.elki.application.jsmap

Class JSONWebServer

java.lang.Object

de.lmu.ifi.dbs.elki.application.jsmap.JSONWebServer

All Implemented Interfaces:

com.sun.net.httpserver.HttpHandler

public class JSONWebServer
extends Object
implements com.sun.net.httpserver.HttpHandler

A simple web server to serve data base contents to a JavaScript client.

Author:

Erich Schubert TODO: use Jetty or something similar on the long run.

Field Summary

Fields

Modifier and Type	Field and Description
private Result	baseResult Starting point.
private Database	db The database we use for obtaining object bundles.
private ResultHierarchy	hier The result tree we serve.
private static Logging	LOG Our logger.
static String	PATH_JSON The base path we serve data from.
private com.sun.net.httpserver.HttpServer	server Server instance.

Constructor Summary

Constructors

Constructor and Description
JSONWebServer(int port, ResultHierarchy hier, Result baseResult) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
protected void	bundleToJSON(JSONBuffer re, DBIDRef id) Serialize an object bundle to JSON.
void	handle(com.sun.net.httpserver.HttpExchange exchange)
private void	outlierMetaToJSON(JSONBuffer re, OutlierScoreMeta meta) Serialize outlier metadata as JSON.
protected void	resultToJSON(JSONBuffer re, String name) Serialize an arbitrary result into JSON.
void	stop() Stop the web server.
private DBID	stringToDBID(String query) Parse a string into a DBID.

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final Logging LOG

Our logger.

PATH_JSON

public static final String PATH_JSON

The base path we serve data from.

See Also:

Constant Field Values

server

private com.sun.net.httpserver.HttpServer server

Server instance.

hier

private ResultHierarchy hier

The result tree we serve.

baseResult

private Result baseResult

Starting point.

db

private Database db

The database we use for obtaining object bundles.

Constructor Detail

JSONWebServer

public JSONWebServer(int port,
             ResultHierarchy hier,
             Result baseResult)

Constructor.

Parameters:

port - Port to listen on

hier - Result hierarchy to serve

Method Detail

stop

public void stop()

Stop the web server.

stringToDBID

private DBID stringToDBID(String query)

Parse a string into a DBID.

Parameters:

query - Query string

Returns:

DBID

bundleToJSON

protected void bundleToJSON(JSONBuffer re,
                DBIDRef id)

Serialize an object bundle to JSON.

Parameters:

re - Buffer to serialize to

id - Object ID

resultToJSON

protected void resultToJSON(JSONBuffer re,
                String name)

Serialize an arbitrary result into JSON.

Parameters:

re - Buffer to serialize to

name - Result requested

outlierMetaToJSON

private void outlierMetaToJSON(JSONBuffer re,
                     OutlierScoreMeta meta)

Serialize outlier metadata as JSON.

Parameters:

re - Output buffer

meta - Metadata

handle

public void handle(com.sun.net.httpserver.HttpExchange exchange)
            throws IOException

Specified by:

handle in interface com.sun.net.httpserver.HttpHandler

Throws:

IOException