*/
package jalview.util;
+import java.io.BufferedInputStream;
+import java.io.File;
+import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
{
return file.startsWith("http://") || file.startsWith("https://");
}
+
/**
* wrapper to get/post to a URL or check headers
- *
* @param url
* @param ids
* @param readTimeout
* @throws IOException
* @throws ProtocolException
*/
- public static boolean checkUrlAvailable(URL url, int readTimeout)
- throws IOException, ProtocolException
+ public static boolean checkUrlAvailable(URL url,
+ int readTimeout) throws IOException, ProtocolException
{
// System.out.println(System.currentTimeMillis() + " " + url);
return connection.getResponseCode() == 200;
}
+ /**
+ * download from given URL and return a pointer to temporary file
+ */
+ public static File fetchURLToTemp(String url) throws OutOfMemoryError,
+ IOException
+ {
+ long time = System.currentTimeMillis();
+ URL rcall = new URL(url);
+
+ InputStream is = new BufferedInputStream(rcall.openStream());
+ File outFile = null;
+ try
+ {
+ outFile = File.createTempFile("jalview", ".xml");
+ outFile.deleteOnExit();
+ if (outFile.length() == 0)
+ {
+ outFile.delete();
+ return null;
+ }
+ } catch (Exception ex)
+ {
+ }
+
+ if (outFile != null)
+ {
+ FileOutputStream fio = new FileOutputStream(outFile);
+ byte[] bb = new byte[32 * 1024];
+ int l;
+ while ((l = is.read(bb)) > 0)
+ {
+ fio.write(bb, 0, l);
+ }
+ fio.close();
+ is.close();
+ return outFile;
+ }
+ else
+ {
+ return null;
+ }
+ }
}