Created
April 6, 2018 18:05
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This program copies jar from the source folder to the destination folder.
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| package jarcopier; | |
| import java.io.*; | |
| import java.util.Enumeration; | |
| import java.util.jar.*; | |
| /* | |
| * @author Shubham Shah | |
| */ | |
| public class copy { | |
| public static void main(String[] args) throws Exception { | |
| File shubhamDir = new File(sourceLocation); | |
| File destDir = new File(destinationLocation); | |
| copy cp = new copy(); | |
| if (shubhamDir.isFile()) { | |
| cp.copyJarFile(new JarFile(shubhamDir), destDir); | |
| } else if (shubhamDir.isDirectory()) { | |
| File[] files = shubhamDir.listFiles(new FilenameFilter() { | |
| public boolean accept(File dir, String name) { | |
| return name.endsWith(".jar"); | |
| } | |
| }); | |
| for (File f : files) { | |
| System.out.println("Shubham File f-->"+f); | |
| cp.copyJarFile(new JarFile(f), destDir); | |
| } | |
| } | |
| } | |
| public void copyJarFile(JarFile jarFile, File destDir) throws IOException { | |
| String fileName = jarFile.getName(); | |
| String fileNameLastPart = fileName.substring(fileName.lastIndexOf(File.separator)); | |
| File destFile = new File(destDir, fileNameLastPart); | |
| JarOutputStream jos = new JarOutputStream(new FileOutputStream(destFile)); | |
| Enumeration<JarEntry> entries = jarFile.entries(); | |
| while (entries.hasMoreElements()) { | |
| JarEntry entry = entries.nextElement(); | |
| InputStream is = jarFile.getInputStream(entry); | |
| jos.putNextEntry(new JarEntry(entry.getName())); | |
| byte[] buffer = new byte[4096]; | |
| int bytesRead = 0; | |
| while ((bytesRead = is.read(buffer)) != -1) { | |
| jos.write(buffer, 0, bytesRead); | |
| } | |
| is.close(); | |
| jos.flush(); | |
| jos.closeEntry(); | |
| } | |
| jos.close(); | |
| } | |
| } |
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