Coverage Report
File UrlDownloadClient.java
Coverage histogram
29% of files have more coverage
Classes
| Class | Line # | Actions | |||
|---|---|---|---|---|---|
| UrlDownloadClient | 38 | 25 | 10 |
Contributing tests
This file is covered by 57 tests.
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Source view
| 1 | /* | |
| 2 | * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$) | |
| 3 | * Copyright (C) $$Year-Rel$$ The Jalview Authors | |
| 4 | * | |
| 5 | * This file is part of Jalview. | |
| 6 | * | |
| 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. | |
| 11 | * | |
| 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. | |
| 16 | * | |
| 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. | |
| 20 | */ | |
| 21 | ||
| 22 | package jalview.ws.utils; | |
| 23 | ||
| 24 | import java.io.File; | |
| 25 | import java.io.FileOutputStream; | |
| 26 | import java.io.IOException; | |
| 27 | import java.net.URL; | |
| 28 | import java.nio.channels.Channels; | |
| 29 | import java.nio.channels.ReadableByteChannel; | |
| 30 | import java.nio.file.Files; | |
| 31 | import java.nio.file.Path; | |
| 32 | import java.nio.file.Paths; | |
| 33 | import java.nio.file.StandardCopyOption; | |
| 34 | ||
| 35 | import jalview.util.HttpUtils; | |
| 36 | import jalview.util.Platform; | |
| 37 | ||
| 38 | public class UrlDownloadClient | |
| 39 | { | |
| 40 | /** | |
| 41 | * Download and save a file from a URL | |
| 42 | * | |
| 43 | * @param urlstring | |
| 44 | * url to download from, as string | |
| 45 | * @param outfile | |
| 46 | * the name of file to save the URLs to | |
| 47 | * @throws IOException | |
| 48 | */ | |
| 49 | 75 |  public static void download(String urlstring, String outfile) |
| 50 | throws IOException | |
| 51 | { | |
| 52 | ||
| 53 | 75 | FileOutputStream fos = null; |
| 54 | 75 | ReadableByteChannel rbc = null; |
| 55 | 75 | Path temp = null; |
| 56 | 75 | try |
| 57 | { | |
| 58 | 75 | temp = Files.createTempFile(".jalview_", ".tmp"); |
| 59 | ||
| 60 | 75 | URL url = new URL(urlstring); |
| 61 | 75 | rbc = Channels.newChannel(HttpUtils.openStream(url)); |
| 62 | 75 | fos = new FileOutputStream(temp.toString()); |
| 63 | 75 | fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE); |
| 64 | ||
| 65 | // copy tempfile to outfile once our download completes | |
| 66 | // incase something goes wrong | |
| 67 | 75 | Files.copy(temp, Paths.get(outfile), |
| 68 | StandardCopyOption.REPLACE_EXISTING); | |
| 69 | } catch (IOException e) | |
| 70 | { | |
| 71 | 0 | throw e; |
| 72 | } finally | |
| 73 | { | |
| 74 | 75 | try |
| 75 | { | |
| 76 | 75 | if (fos != null) |
| 77 | { | |
| 78 | 75 | fos.close(); |
| 79 | } | |
| 80 | } catch (IOException e) | |
| 81 | { | |
| 82 | 0 | jalview.bin.Console.outPrintln( |
| 83 | "Exception while closing download file output stream: " | |
| 84 | + e.getMessage()); | |
| 85 | } | |
| 86 | 75 | try |
| 87 | { | |
| 88 | 75 | if (rbc != null) |
| 89 | { | |
| 90 | 75 | rbc.close(); |
| 91 | } | |
| 92 | } catch (IOException e) | |
| 93 | { | |
| 94 | 0 | jalview.bin.Console |
| 95 | .outPrintln("Exception while closing download channel: " | |
| 96 | + e.getMessage()); | |
| 97 | } | |
| 98 | 75 | try |
| 99 | { | |
| 100 | 75 | if (temp != null) |
| 101 | { | |
| 102 | 75 | Files.deleteIfExists(temp); |
| 103 | } | |
| 104 | } catch (IOException e) | |
| 105 | { | |
| 106 | 0 | jalview.bin.Console |
| 107 | .outPrintln("Exception while deleting download temp file: " | |
| 108 | + e.getMessage()); | |
| 109 | } | |
| 110 | } | |
| 111 | ||
| 112 | } | |
| 113 | ||
| 114 | 0 | public static void download(String urlstring, File tempFile) |
| 115 | throws IOException | |
| 116 | { | |
| 117 | 0 | if (!Platform.setFileBytes(tempFile, urlstring)) |
| 118 | { | |
| 119 | 0 | download(urlstring, tempFile.toString()); |
| 120 | } | |
| 121 | } | |
| 122 | } |