84 lines
2.4 KiB
Java
84 lines
2.4 KiB
Java
package magic.data;
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import java.io.BufferedOutputStream;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.net.Proxy;
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import java.net.URL;
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import java.nio.file.Files;
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import java.nio.file.StandardCopyOption;
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import org.apache.commons.io.FileUtils;
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public class DownloadableFile {
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private static final GeneralConfig CONFIG = GeneralConfig.getInstance();
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private static String proxySettings = "";
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private static Proxy proxy = Proxy.NO_PROXY;
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private final File localFile;
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private final URL remoteFile;
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public DownloadableFile(File aFile, URL aUrl) {
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this.localFile = aFile;
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this.remoteFile = aUrl;
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}
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public File getLocalFile() {
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return localFile;
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}
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public URL getUrl() {
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return remoteFile;
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}
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public String getFilename() {
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return localFile.getName();
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}
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public void doDownload() throws IOException {
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final File tempFile = new File(localFile.getParent(), "~" + localFile.getName());
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downloadToFile(remoteFile, tempFile);
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Files.move(tempFile.toPath(), localFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
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}
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private static Proxy getProxy() {
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if (!proxySettings.equals(CONFIG.getProxySettings())) {
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proxySettings = CONFIG.getProxySettings();
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proxy = CONFIG.getProxy();
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}
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return proxy;
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}
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private static void downloadUsingProxy(URL url, File file) throws IOException {
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try (
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final OutputStream outputStream = new BufferedOutputStream(new FileOutputStream(file));
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final InputStream inputStream = url.openConnection(getProxy()).getInputStream()) {
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final byte[] buffer = new byte[65536];
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while (true) {
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final int len = inputStream.read(buffer);
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if (len < 0) {
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break;
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}
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outputStream.write(buffer, 0, len);
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}
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} catch (final Exception ex) {
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file.delete();
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throw ex;
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}
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}
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public static void downloadToFile(URL url, File file) throws IOException {
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if (getProxy() != Proxy.NO_PROXY && getProxy().type() != Proxy.Type.DIRECT) {
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downloadUsingProxy(url, file);
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} else {
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FileUtils.copyURLToFile(url, file, 10000, 5000);
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}
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}
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}
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