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 jalview.util.Platform;
26 import java.io.ByteArrayInputStream;
28 import java.io.FileOutputStream;
29 import java.io.IOException;
31 import java.nio.channels.Channels;
32 import java.nio.channels.ReadableByteChannel;
33 import java.nio.file.Files;
34 import java.nio.file.Path;
35 import java.nio.file.Paths;
36 import java.nio.file.StandardCopyOption;
38 public class UrlDownloadClient
40 public UrlDownloadClient()
46 * Download and save a file from a URL
49 * url to download from, as string
51 * the name of file to save the URLs to
54 public static void download(String urlstring, String outfile)
58 FileOutputStream fos = null;
59 ReadableByteChannel rbc = null;
63 temp = Files.createTempFile(".jalview_", ".tmp");
65 URL url = new URL(urlstring);
66 rbc = Channels.newChannel(url.openStream());
67 fos = new FileOutputStream(temp.toString());
68 fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
70 // copy tempfile to outfile once our download completes
71 // incase something goes wrong
72 Files.copy(temp, Paths.get(outfile),
73 StandardCopyOption.REPLACE_EXISTING);
74 } catch (IOException e)
85 } catch (IOException e)
88 "Exception while closing download file output stream: "
97 } catch (IOException e)
99 System.out.println("Exception while closing download channel: "
106 Files.deleteIfExists(temp);
108 } catch (IOException e)
110 System.out.println("Exception while deleting download temp file: "
117 public static void download(String urlstring, File tempFile) throws IOException
119 // BH 2019.01.25 this said "...getFileAsBytes(..." which cannot work.
120 // maybe we cannot get here?
121 if (Platform.isJS()) {
123 * tempFile._bytes = swingjs.JSUtil.getFileAsBytes$O(urlstring);
126 download(urlstring, tempFile.toString());