2 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3 * Copyright (C) $$Year-Rel$$ The Jalview Authors
5 * This file is part of Jalview.
7 * Jalview is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation, either version 3
10 * of the License, or (at your option) any later version.
12 * Jalview is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19 * The Jalview Authors are detailed in the 'AUTHORS' file.
22 package jalview.ws.utils;
24 import java.io.FileOutputStream;
25 import java.io.IOException;
27 import java.nio.channels.Channels;
28 import java.nio.channels.ReadableByteChannel;
29 import java.nio.file.Files;
30 import java.nio.file.Path;
31 import java.nio.file.Paths;
32 import java.nio.file.StandardCopyOption;
34 public class UrlDownloadClient
36 public UrlDownloadClient()
42 * Download and save a file from a URL
45 * url to download from, as string
47 * the name of file to save the URLs to
50 public void download(String urlstring, String outfile) throws IOException
52 FileOutputStream fos = null;
53 ReadableByteChannel rbc = null;
57 temp = Files.createTempFile(".jalview_", ".tmp");
59 URL url = new URL(urlstring);
60 rbc = Channels.newChannel(url.openStream());
61 fos = new FileOutputStream(temp.toString());
62 fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
64 // copy tempfile to outfile once our download completes
65 // incase something goes wrong
66 Files.copy(temp, Paths.get(outfile),
67 StandardCopyOption.REPLACE_EXISTING);
68 } catch (IOException e)
79 } catch (IOException e)
82 .println("Exception while closing download file output stream: "
91 } catch (IOException e)
93 System.out.println("Exception while closing download channel: "
100 Files.deleteIfExists(temp);
102 } catch (IOException e)
104 System.out.println("Exception while deleting download temp file: "