org.dice_research.squirrel.fetcher.ckan.py

Class MicroServiceBasedCkanFetcher

java.lang.Object

org.dice_research.squirrel.fetcher.ckan.py.MicroServiceBasedCkanFetcher

All Implemented Interfaces:

Closeable, AutoCloseable, Fetcher

public class MicroServiceBasedCkanFetcher
extends Object
implements Fetcher

A micro service client which communicates via RabbitMQ and assumes that the micro service is able to fetch the content of a CKAN.

Author:

Varun Maitreya Eranki, Michael Röder (michael.roeder@uni-paderborn.de)

Constructor Summary

Constructors

Constructor and Description
MicroServiceBasedCkanFetcher()

Method Summary

Modifier and Type	Method and Description
void	close()
File	fetch(org.dice_research.squirrel.data.uri.CrawleableUri uri, Delayer delayer) Fetches a stream of data from the given URI by following the delay implemented by the given Delayer, stores it and returns a File object pointing to the stored data.
static String	recieve()
static String	send(String s)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.dice_research.squirrel.fetcher.Fetcher

fetch

Constructor Detail

MicroServiceBasedCkanFetcher

public MicroServiceBasedCkanFetcher()

Method Detail

send

public static String send(String s)
                   throws Exception

Throws:

Exception

recieve

public static String recieve()
                      throws Exception

Throws:

Exception

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

fetch

public File fetch(org.dice_research.squirrel.data.uri.CrawleableUri uri,
                  Delayer delayer)

Description copied from interface: Fetcher

Fetches a stream of data from the given URI by following the delay implemented by the given Delayer, stores it and returns a File object pointing to the stored data. If an error occurs, null is returned.

Specified by:

fetch in interface Fetcher

Parameters:

uri - The URI from which data should be fetched.

Returns:

A File object pointing to the downloaded data or null if an error occurred.