Hi problem with solution :(

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Hi guys, Help me with this task because I don't see any error(bug) and the program on my computer is working properly. If I verify my solution,then i will receive this error message (and a tip): error: "The addFiles method must write the new files as well as all of the old archive's files to the new archive. Then replace the old archive with the new one." tip: "The method must not add a new file to the archive if a file with that name already exists."

There's just one small trifle left: adding a file to an archive. It sounds shady, but that's exactly what we're going to do.
Adding files is similar to removing them: we create a temporary archive file, copy over all of the old archive's contents, and then add the new files. Then we replace the old archive file with the new one.
1. Add a public void addFiles(List<Path> absolutePathList) throws Exception method to the ZipFileManager class, where absolutePathList is a list of absolute paths to the files to be added.
This method must:
1.1. As usual, throw a NoSuchZipFileException if the archive file doesn't exist
1.2. Create a temporary archive file
1.3. Go through all the files in the original archive. Copy each file to the new archive, and add its name to a local list.
1.4. Go through the list of files to add.
1.5. Check whether each file exists and whether it is a regular file. If something isn't right, then throw a PathNotFoundException.
1.6. Check whether the file to be added is already in the archive (use the list in step 1.3). This is possible if the user has already added it.
- If the file isn't in the list, add it to the new archive and display a message indicating that the file was added to the archive
- If the file is in the list, just tell the user that the file already exists in the archive
1.7. Replace the original archive file with the temporary file, which already has all of the added files.
2. Add a public void addFile(Path absolutePath) throws Exception method to the ZipFileManager class, and implement it by calling the addFiles(), method—by analogy with what we did for removing a file.
3. Implement the ZipAddCommand class's execute() method. It's business as usual here, but don't forget to ask the user which file to add to which archive, and handle the PathNotFoundException that might be thrown by the addFile() method.
4. Run the program and verify that adding a file now works.

Requirements:

You need to create a public void addFiles(List<Path> absolutePathList) throws Exception method in the ZipFileManager class.
The addFiles method must throw a NoSuchZipFileException if the archive file doesn't exist.
The addFiles method must create a temporary archive file using the Files.createTempFile method.
The addFiles method must go through the list of files to be added and throw a PathNotFoundException if a file doesn't exist.
The addFiles method must write the new files as well as all of the old archive's files to the new archive. Then replace the old archive with the new one.
In the ZipFileManager class, you need to create a public void addFile(Path absolutePath) throws Exception method that delegates the call to the addFiles(List<Path> absolutePathList) method.
The ZipAddCommand class's execute() method must get the ZipFileManager object, and add the file read from the console to the archive.

package com.codegym.task.task31.task3110; import com.codegym.task.task31.task3110.exception.NoSuchZipFileException; import java.io.IOException; public class Archiver { public static void main(String[] args) throws IOException { Operation operation = null; do { try { operation = askOperation(); CommandExecutor.execute(operation); } catch (NoSuchZipFileException e) { ConsoleHelper.writeMessage("You didn't select an archive or you selected an invalid file."); } catch (Exception e) { ConsoleHelper.writeMessage("An error occurred. Please check the entered data."); } } while (operation != Operation.EXIT); } public static Operation askOperation() throws IOException { ConsoleHelper.writeMessage(""); ConsoleHelper.writeMessage("Select an operation:"); ConsoleHelper.writeMessage(String.format("\t %d - Zip files into an archive", Operation.CREATE.ordinal())); ConsoleHelper.writeMessage(String.format("\t %d - Add a file to an archive", Operation.ADD.ordinal())); ConsoleHelper.writeMessage(String.format("\t %d - Remove a file from an archive", Operation.REMOVE.ordinal())); ConsoleHelper.writeMessage(String.format("\t %d - Extract an archive", Operation.EXTRACT.ordinal())); ConsoleHelper.writeMessage(String.format("\t %d - View the contents of an archive", Operation.CONTENT.ordinal())); ConsoleHelper.writeMessage(String.format("\t %d - Exit", Operation.EXIT.ordinal())); return Operation.values()[ConsoleHelper.readInt()]; } }

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Mateusz

Level 36 , Wroclaw, Poland

29 February 2020, 11:45

solution

Hi Same times I AM DUMB:( 1) What is the absolute path: C:\Users\User\Desktop\test\file.txt <-File 2) What am I doing in my solution. I only added the local path to the local list. For Example: C:\Users\User\Desktop\test.zip this is the path to the zip file and the local path in the zip file is: yyyy\sss.txt I edited this line : list.add(Paths.get(zipFile.getParent().toString(),entryIn.toString())); (line:192) and i removed line was always occurs Exception: INsteam.close(); (line :221)

jorge ives murillo paredes

Level 40 , New York City, United States

22 April 2020, 18:30

Hi,i try whit your code but still no validate List<Path> list = new ArrayList<Path>(); if(!Files.isRegularFile(zipFile)) throw new NoSuchZipFileException(); Path temporaryFile = Files.createTempFile(null,null); try(ZipOutputStream zipOUT = new ZipOutputStream(Files.newOutputStream(temporaryFile));) { ZipInputStream zipIN = new ZipInputStream(Files.newInputStream(zipFile)); ZipEntry entryIn; while((entryIn = zipIN.getNextEntry()) != null) { list.add(Paths.get(zipFile.getParent ().toString (),entryIn.toString ())); zipOUT.putNextEntry(new ZipEntry(entryIn.getName())); copyData(zipIN,zipOUT); zipIN.closeEntry(); zipOUT.closeEntry(); } zipIN.close(); InputStream INsteam = null; for(Path absolutePathForOF: absolutePathList) { if(Files.notExists(absolutePathForOF) || !Files.isRegularFile(absolutePathForOF)) throw new PathNotFoundException(); if(list.contains(zipFile.getParent().relativize(absolutePathForOF))){ ConsoleHelper.writeMessage(absolutePathForOF.toString() + " These files already exist in this archive"); }else { zipOUT.putNextEntry(new ZipEntry(zipFile.getParent().relativize(absolutePathForOF).toString()));INsteam = Files.newInputStream(absolutePathForOF); copyData(INsteam,zipOUT); ConsoleHelper.writeMessage("file has been added to the archive"); zipOUT.closeEntry(); INsteam.close(); } } Files.move(temporaryFile,zipFile,StandardCopyOption.REPLACE_EXISTING); }