Package org.biojava.nbio.structure.align.util

Class URLConnectionTools

java.lang.Object

org.biojava.nbio.structure.align.util.URLConnectionTools

public class URLConnectionTools
extends Object

A class that takes care about opening URLConnections and sets the proper timeouts

Since:

5.0

Author:

Andreas Prlic, Anthony Bradley

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DEFAULT_CONNECTION_TIMEOUT	The default connection timeout in ms - 15 seconds

Constructor Summary

Constructors

Constructor	Description
URLConnectionTools()

Method Summary

Modifier and Type	Method	Description
static InputStream	doPOST(URL url, String data)	Do a POST to a URL and return the response stream for further processing elsewhere.
static InputStream	doPOST(URL url, String data, int timeout)	Do a POST to a URL and return the response stream for further processing elsewhere.
static InputStream	getInputStream(URL url)	Connect to a URL and return result as an InputStream.
static InputStream	getInputStream(URL url, boolean acceptGzipEncoding, int timeout)	Open a URL and return an InputStream to it if acceptGzipEncoding == true, use GZIPEncoding to compress communication.
static InputStream	getInputStream(URL url, int timeout)	Connect to server and return result as an InputStream.
static URLConnection	openURLConnection(URL url)	Open HttpURLConnection.
static URLConnection	openURLConnection(URL url, int timeout)	Open HttpURLConnection.

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_CONNECTION_TIMEOUT

public static final int DEFAULT_CONNECTION_TIMEOUT

The default connection timeout in ms - 15 seconds

See Also:

• Constant Field Values

Constructor Details

URLConnectionTools

public URLConnectionTools()

Method Details

openURLConnection

public static URLConnection openURLConnection(URL url,
 int timeout)
                                       throws IOException

Open HttpURLConnection. Recommended way to open URL connections in Java 1.7 and 1.8. https://eventuallyconsistent.net/2011/08/02/working-with-urlconnection-and-timeouts/

Parameters:

url - URL to open

timeout - timeout in milli seconds

Throws:

IOException - an error in opening the URL

openURLConnection

public static URLConnection openURLConnection(URL url)
                                       throws IOException

Open HttpURLConnection. Recommended way to open HttpURLConnections, since this take care of setting timeouts properly for java 1.4 and 1.5 uses the DEFAULT_CONNECTION_TIMEOUT (= 15 seconds)

Parameters:

url - a URL to open a http connection to

Returns:

HttpURLConnect the opened connection

Throws:

IOException - an error in opening the URL

getInputStream

public static InputStream getInputStream(URL url,
 int timeout)
                                  throws IOException

Connect to server and return result as an InputStream. always asks for response to be in GZIP encoded

The caller is responsible to close the returned InputStream not to cause resource leaks.

Parameters:

url - the URL to connect to

timeout - the timeout for the connection

Returns:

an InputStream of response

Throws:

IOException - due to an error opening the URL

getInputStream

public static InputStream getInputStream(URL url)
                                  throws IOException

Connect to a URL and return result as an InputStream. always asks for response to be in GZIP encoded

The caller is responsible to close the returned InputStream not to cause resource leaks.

Parameters:

url - the input URL to be read

Returns:

an InputStream of response

Throws:

IOException - due to an error opening the URL

getInputStream

public static InputStream getInputStream(URL url,
 boolean acceptGzipEncoding,
 int timeout)
                                  throws IOException

Open a URL and return an InputStream to it if acceptGzipEncoding == true, use GZIPEncoding to compress communication.

The caller is responsible to close the returned InputStream not to cause resource leaks.

Parameters:

url - the input URL to be read

acceptGzipEncoding - whether to accept Gzip encoding

timeout -

Returns:

an InputStream of response

Throws:

IOException - due to an error opening the URL

doPOST

public static InputStream doPOST(URL url,
 String data)
                          throws IOException

Do a POST to a URL and return the response stream for further processing elsewhere.

The caller is responsible to close the returned InputStream not to cause resource leaks.

Parameters:

url - the input URL to be read

data - the post data

Returns:

an InputStream of response

Throws:

IOException - due to an error opening the URL

doPOST

public static InputStream doPOST(URL url,
 String data,
 int timeout)
                          throws IOException

Do a POST to a URL and return the response stream for further processing elsewhere.

The caller is responsible to close the returned InputStream not to cause resource leaks.

Parameters:

url - the input URL to be read

data - the post data

timeout -

Returns:

an InputStream of response

Throws:

IOException - due to an error opening the URL