org.eclipse.smila.zookeeper.internal

Class ZooKeeperAdminHandler

java.lang.Object

org.eclipse.smila.http.server.util.ARequestHandler

org.eclipse.smila.http.server.json.JsonRequestHandler

org.eclipse.smila.zookeeper.internal.ZooKeeperAdminHandler

All Implemented Interfaces:

HttpHandler, RequestHandler

public class ZooKeeperAdminHandler
extends JsonRequestHandler

Http admin handler for Zookeeper.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	KEY_DATA key of content when PUTting a record.
static java.lang.String	KEY_SET_WATCH key to set a watch when getting a record.

Fields inherited from class org.eclipse.smila.http.server.json.JsonRequestHandler

FACTORY, HEADER_REQUEST_HOST, HTTP_UTILS

Constructor Summary

Constructors

Constructor and Description
ZooKeeperAdminHandler() Default Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
protected java.lang.String	getPath(java.lang.String requestUri)
protected boolean	isValidMethod(java.lang.String method, java.lang.String requestUri) Checks if the handler allows the HTTP method.
java.lang.Object	process(java.lang.String method, java.lang.String requestUri, Record inputRecord, HttpExchange exchange) process input record and return result object.
void	setZooKeeperService(ZooKeeperService zooKeeperService)
void	unsetZooKeeperService(ZooKeeperService zooKeeperService)

Methods inherited from class org.eclipse.smila.http.server.json.JsonRequestHandler

getErrorStatus, getRequestHost, getSuccessStatus, getSuccessStatus, handle, process, writeErrorResult, writeResultObject, writeSuccessResult

Methods inherited from class org.eclipse.smila.http.server.util.ARequestHandler

activate, getDynamicUriParts, getRootContextPath, getStaticUriParts, getUriPattern, matches, urlDecode

Methods inherited from class java.lang.Object

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

Field Detail

KEY_SET_WATCH

public static final java.lang.String KEY_SET_WATCH

key to set a watch when getting a record.

See Also:

Constant Field Values

KEY_DATA

public static final java.lang.String KEY_DATA

key of content when PUTting a record.

See Also:

Constant Field Values

Constructor Detail

ZooKeeperAdminHandler

public ZooKeeperAdminHandler()

Default Constructor.

Method Detail

isValidMethod

protected boolean isValidMethod(java.lang.String method,
                    java.lang.String requestUri)

Checks if the handler allows the HTTP method.

Overrides:

isValidMethod in class JsonRequestHandler

Parameters:

method - HTTP method

requestUri - request URI

Returns:

true if the method can be used for the URI, else false.

process

public java.lang.Object process(java.lang.String method,
                       java.lang.String requestUri,
                       Record inputRecord,
                       HttpExchange exchange)
                         throws java.lang.Exception

process input record and return result object. Override this method in your handler if you need access to HttpExchange object, e.g. to read http header fields

Overrides:

process in class JsonRequestHandler

Parameters:

method - HTTP method

requestUri - request URI.

inputRecord - input record parsed either from request body, if it has content, or from request URI parameters.

exchange - http exchange object, contains e.g. the http header fields

Returns:

result object, may be null. If this is not a Record, you have to provide a JsonRequestHandler.writeResultObject(OutputStream, Object) method, too.

Throws:

java.lang.Exception - any failure during processing.

getPath

protected java.lang.String getPath(java.lang.String requestUri)

Returns:

zookeeper path for given request

setZooKeeperService

public void setZooKeeperService(ZooKeeperService zooKeeperService)

Parameters:

zooKeeperService - referenced service

unsetZooKeeperService

public void unsetZooKeeperService(ZooKeeperService zooKeeperService)

Parameters:

zooKeeperService - referenced service