org.apache.nifi.controller.util

Class RemoteProcessGroupUtils

java.lang.Object

org.apache.nifi.controller.util.RemoteProcessGroupUtils

public class RemoteProcessGroupUtils
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
private com.sun.jersey.api.client.Client	client
private static int	CONNECT_TIMEOUT
static String	CONTROLLER_URI_PATH
private static int	READ_TIMEOUT

Constructor Summary

Constructors

Constructor and Description
RemoteProcessGroupUtils(SSLContext sslContext)

Method Summary

Modifier and Type	Method and Description
com.sun.jersey.api.client.ClientResponse	get(URI uri, int timeoutMillis) Gets the content at the specified URI.
com.sun.jersey.api.client.ClientResponse	get(URI uri, int timeoutMillis, Map<String,String> queryParams) Gets the content at the specified URI using the given query parameters.
private com.sun.jersey.api.client.Client	getClient(SSLContext sslContext) Gets a client for the given sslContext
private org.apache.nifi.web.api.dto.ControllerDTO	getController(URI uri, int timeoutMillis)
String	getRemoteInstanceId(String uri, int timeoutMillis)
Integer	getRemoteListeningPort(String uri, int timeoutMillis) Returns the port on which the remote instance is listening for Flow File transfers, or null if the remote instance is not configured to use Site-to-Site transfers.
private Integer	getRemoteListeningPort(URI uri, int timeoutMillis) Returns the port on which the remote instance is listening for Flow File transfers, or null if the remote instance is not configured to use Site-to-Site transfers.
String	getRemoteRootGroupId(String uri, int timeoutMillis)
private String	getRemoteRootGroupId(URI uri, int timeoutMillis)
com.sun.jersey.api.client.ClientResponse	head(URI uri, int timeoutMillis) Performs a HEAD request to the specified URI.
com.sun.jersey.api.client.ClientResponse	issueRegistrationRequest(String baseApiUri) Issues a registration request on behalf of the current user.

Methods inherited from class java.lang.Object

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

Field Detail

CONTROLLER_URI_PATH

public static final String CONTROLLER_URI_PATH

See Also:

Constant Field Values

CONNECT_TIMEOUT

private static final int CONNECT_TIMEOUT

See Also:

Constant Field Values

READ_TIMEOUT

private static final int READ_TIMEOUT

See Also:

Constant Field Values

client

private final com.sun.jersey.api.client.Client client

Constructor Detail

RemoteProcessGroupUtils

public RemoteProcessGroupUtils(SSLContext sslContext)

Method Detail

get

public com.sun.jersey.api.client.ClientResponse get(URI uri,
                                                    int timeoutMillis)
                                             throws com.sun.jersey.api.client.ClientHandlerException,
                                                    com.sun.jersey.api.client.UniformInterfaceException

Gets the content at the specified URI.

Parameters:

uri - the URI to get the content of

timeoutMillis - the period of time to wait

Returns:

the response of the request

Throws:

com.sun.jersey.api.client.ClientHandlerException - issues handling the response

com.sun.jersey.api.client.UniformInterfaceException - issues with the request

get

public com.sun.jersey.api.client.ClientResponse get(URI uri,
                                                    int timeoutMillis,
                                                    Map<String,String> queryParams)
                                             throws com.sun.jersey.api.client.ClientHandlerException,
                                                    com.sun.jersey.api.client.UniformInterfaceException

Gets the content at the specified URI using the given query parameters.

Parameters:

uri - the uri to get the content of

timeoutMillis - the period of time to wait for a response

queryParams - the query params of the request

Returns:

the client response of the request

Throws:

com.sun.jersey.api.client.ClientHandlerException - issues with the response

com.sun.jersey.api.client.UniformInterfaceException - issues with the request

head

public com.sun.jersey.api.client.ClientResponse head(URI uri,
                                                     int timeoutMillis)
                                              throws com.sun.jersey.api.client.ClientHandlerException,
                                                     com.sun.jersey.api.client.UniformInterfaceException

Performs a HEAD request to the specified URI.

Parameters:

uri - the uri to request the head of

timeoutMillis - the period of time to wait for a reponse

Returns:

the client response

Throws:

com.sun.jersey.api.client.ClientHandlerException - issues with the request

com.sun.jersey.api.client.UniformInterfaceException - issues with the response

getClient

private com.sun.jersey.api.client.Client getClient(SSLContext sslContext)

Gets a client for the given sslContext

Parameters:

sslContext - the ssl context to get a client for

Returns:

the client

getRemoteListeningPort

public Integer getRemoteListeningPort(String uri,
                                      int timeoutMillis)
                               throws IOException

Returns the port on which the remote instance is listening for Flow File transfers, or null if the remote instance is not configured to use Site-to-Site transfers.

Parameters:

uri - the base URI of the remote instance. This should include the path only to the nifi-api level, as well as the protocol, host, and port.

timeoutMillis - the period of time to wait for the port

Returns:

the port

Throws:

IOException - if an error occurs getting the remote port information

getRemoteRootGroupId

public String getRemoteRootGroupId(String uri,
                                   int timeoutMillis)
                            throws IOException

Throws:

IOException

getRemoteInstanceId

public String getRemoteInstanceId(String uri,
                                  int timeoutMillis)
                           throws IOException

Throws:

IOException

getRemoteListeningPort

private Integer getRemoteListeningPort(URI uri,
                                       int timeoutMillis)
                                throws IOException

Returns the port on which the remote instance is listening for Flow File transfers, or null if the remote instance is not configured to use Site-to-Site transfers.

Parameters:

uri - the full URI to fetch, including the path.

Returns:

the remote listening port

Throws:

IOException - if unable to get port

getRemoteRootGroupId

private String getRemoteRootGroupId(URI uri,
                                    int timeoutMillis)
                             throws IOException

Throws:

IOException

getController

private org.apache.nifi.web.api.dto.ControllerDTO getController(URI uri,
                                                                int timeoutMillis)
                                                         throws IOException

Throws:

IOException

issueRegistrationRequest

public com.sun.jersey.api.client.ClientResponse issueRegistrationRequest(String baseApiUri)

Issues a registration request on behalf of the current user.

Parameters:

baseApiUri - the URI to issue a request to

Returns:

the response of the request