org.apache.nifi.processors.asana.utils

Class GenericAsanaObjectFetcher<T extends com.asana.models.Resource>

java.lang.Object

org.apache.nifi.processors.asana.utils.AbstractAsanaObjectFetcher

org.apache.nifi.processors.asana.utils.GenericAsanaObjectFetcher<T>

All Implemented Interfaces:

AsanaObjectFetcher

Direct Known Subclasses:

AsanaProjectFetcher, AsanaProjectMembershipFetcher, AsanaProjectStatusAttachmentFetcher, AsanaProjectStatusFetcher, AsanaStoryFetcher, AsanaTagFetcher, AsanaTaskAttachmentFetcher, AsanaTaskFetcher, AsanaTeamFetcher, AsanaTeamMemberFetcher, AsanaUserFetcher

public abstract class GenericAsanaObjectFetcher<T extends com.asana.models.Resource>
extends AbstractAsanaObjectFetcher

Field Summary

Fields

Modifier and Type	Field and Description
private static String	LAST_FINGERPRINTS
private Map<String,String>	lastFingerprints

Constructor Summary

Constructors

Constructor and Description
GenericAsanaObjectFetcher()

Method Summary

Modifier and Type	Method and Description
private String	calculateSecureHash(String input)
void	clearState() Call this method to wipe out all the state information of this object fetcher.
private static String	compress(String str)
protected String	createObjectFingerprint(T object)
private static String	decompress(String str)
protected Iterator<AsanaObject>	fetch()
AsanaObject	fetchNext() Call this method to retrieve the next unprocessed object from Asana.
protected abstract Stream<T>	fetchObjects()
void	loadState(Map<String,String> state) Call this method to deserialize & restore a state that was saved/exported earlier.
Map<String,String>	saveState() Call this method to serialize this object fetcher's state.
protected String	transformObjectToPayload(T object)

Methods inherited from class java.lang.Object

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

Field Detail

LAST_FINGERPRINTS

private static final String LAST_FINGERPRINTS

See Also:

Constant Field Values

lastFingerprints

private Map<String,String> lastFingerprints

Constructor Detail

GenericAsanaObjectFetcher

public GenericAsanaObjectFetcher()

Method Detail

fetchNext

public AsanaObject fetchNext()

Description copied from interface: AsanaObjectFetcher

Call this method to retrieve the next unprocessed object from Asana. The returned AsanaObject contains the object in Json formatted string, and information about its ID and whether it is new, updated, or removed.

Specified by:

fetchNext in interface AsanaObjectFetcher

Overrides:

fetchNext in class AbstractAsanaObjectFetcher

Returns:

null if there are no more unprocessed objects at the moment, AsanaObject otherwise.

saveState

public Map<String,String> saveState()

Description copied from interface: AsanaObjectFetcher

Call this method to serialize this object fetcher's state.

Returns:

A Map containing the object state in key-value pairs. Optimized for using it with StateManager

loadState

public void loadState(Map<String,String> state)

Description copied from interface: AsanaObjectFetcher

Call this method to deserialize & restore a state that was saved/exported earlier.

Parameters:

state - A Map containing all the key-value pairs returned by a prior call to saveState().

clearState

public void clearState()

Description copied from interface: AsanaObjectFetcher

Call this method to wipe out all the state information of this object fetcher. As if it was brand-new.

Specified by:

clearState in interface AsanaObjectFetcher

Overrides:

clearState in class AbstractAsanaObjectFetcher

fetch

protected Iterator<AsanaObject> fetch()

Specified by:

fetch in class AbstractAsanaObjectFetcher

transformObjectToPayload

protected String transformObjectToPayload(T object)

createObjectFingerprint

protected String createObjectFingerprint(T object)

fetchObjects

protected abstract Stream<T> fetchObjects()

compress

private static String compress(String str)
                        throws IOException

Throws:

IOException

decompress

private static String decompress(String str)
                          throws IOException

Throws:

IOException

calculateSecureHash

private String calculateSecureHash(String input)