Package org.graylog2.lookup.adapters.dsvhttp

Class HTTPFileRetriever

java.lang.Object

org.graylog2.lookup.adapters.dsvhttp.HTTPFileRetriever

public class HTTPFileRetriever
extends Object

Constructor Summary

Constructors

Constructor	Description
HTTPFileRetriever(okhttp3.OkHttpClient httpClient)

Method Summary

Modifier and Type	Method	Description
boolean	downloadFile(String url, Path toPath)	Request that a file be downloaded and stored to the provided location.
boolean	downloadFileIfNotModified(String url, Path toPath)	Request that a file be downloaded and stored to the provided location.
Optional<String>	fetchFile(String url)	Request file.
Optional<byte[]>	fetchFileBytes(String url)	Request file bytes.
Optional<byte[]>	fetchFileBytesIfNotModified(String url)	Request file bytes by sending an "If-Modified-Since" header so that the file won't be fetched if it hasn't been modified since the last request.
Optional<String>	fetchFileIfNotModified(String url)	Request file by sending an "If-Modified-Since" header so that the file won't be fetched if it hasn't been modified since the last request.

Methods inherited from class java.lang.Object

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

Constructor Details

HTTPFileRetriever

@Inject
public HTTPFileRetriever(okhttp3.OkHttpClient httpClient)

Method Details

fetchFile

public Optional<String> fetchFile(String url)
                           throws IOException

Request file. No "If-Modified-Since" header will be sent so the file will be fetched again, even if hasn't been modified since the last fetch.

Throws:

IOException

fetchFileBytes

public Optional<byte[]> fetchFileBytes(String url)
                                throws IOException

Request file bytes. No "If-Modified-Since" header will be sent so the file will be fetched again, even if hasn't been modified since the last fetch.

Throws:

IOException

downloadFile

public boolean downloadFile(String url,
 Path toPath)
                     throws IOException

Request that a file be downloaded and stored to the provided location. No "If-Modified-Since" header will be sent so the file will be fetched again, even if it hasn't been modified since the last fetch.

Throws:

IOException

fetchFileIfNotModified

public Optional<String> fetchFileIfNotModified(String url)
                                        throws IOException

Request file by sending an "If-Modified-Since" header so that the file won't be fetched if it hasn't been modified since the last request.

Throws:

IOException

fetchFileBytesIfNotModified

public Optional<byte[]> fetchFileBytesIfNotModified(String url)
                                             throws IOException

Request file bytes by sending an "If-Modified-Since" header so that the file won't be fetched if it hasn't been modified since the last request.

Throws:

IOException

downloadFileIfNotModified

public boolean downloadFileIfNotModified(String url,
 Path toPath)
                                  throws IOException

Request that a file be downloaded and stored to the provided location. Will send the "If-Modified-Since" header so that the file won't be fetched if it hasn't been modified since the last request. Returns TRUE if the file was downloaded, FALSE otherwise.

Throws:

IOException