Examples with FileAlreadyExistsException java.nio.file.FileAlreadyExistsException used on opensource projects

Example 36 with FileAlreadyExistsException

use of java.nio.file.FileAlreadyExistsException in project jdk8u_jdk by JetBrains.

the class FileHandler method openFiles.

/**
     * Open the set of output files, based on the configured
     * instance variables.
     */
private void openFiles() throws IOException {
    LogManager manager = LogManager.getLogManager();
    manager.checkPermission();
    if (count < 1) {
        throw new IllegalArgumentException("file count = " + count);
    }
    if (limit < 0) {
        limit = 0;
    }
    // We register our own ErrorManager during initialization
    // so we can record exceptions.
    InitializationErrorManager em = new InitializationErrorManager();
    setErrorManager(em);
    // Create a lock file.  This grants us exclusive access
    // to our set of output files, as long as we are alive.
    int unique = -1;
    for (; ; ) {
        unique++;
        if (unique > MAX_LOCKS) {
            throw new IOException("Couldn't get lock for " + pattern);
        }
        // Generate a lock file name from the "unique" int.
        lockFileName = generate(pattern, 0, unique).toString() + ".lck";
        // if we ourself already have the file locked.
        synchronized (locks) {
            if (locks.contains(lockFileName)) {
                // object.  Try again.
                continue;
            }
            final Path lockFilePath = Paths.get(lockFileName);
            FileChannel channel = null;
            int retries = -1;
            boolean fileCreated = false;
            while (channel == null && retries++ < 1) {
                try {
                    channel = FileChannel.open(lockFilePath, CREATE_NEW, WRITE);
                    fileCreated = true;
                } catch (FileAlreadyExistsException ix) {
                    // but not too frequently.
                    if (Files.isRegularFile(lockFilePath, LinkOption.NOFOLLOW_LINKS) && isParentWritable(lockFilePath)) {
                        try {
                            channel = FileChannel.open(lockFilePath, WRITE, APPEND);
                        } catch (NoSuchFileException x) {
                            // the sequence.
                            continue;
                        } catch (IOException x) {
                            // try the next name in the sequence
                            break;
                        }
                    } else {
                        // break and try the next name in the sequence.
                        break;
                    }
                }
            }
            // try the next name;
            if (channel == null)
                continue;
            lockFileChannel = channel;
            boolean available;
            try {
                available = lockFileChannel.tryLock() != null;
            // We got the lock OK.
            // At this point we could call File.deleteOnExit().
            // However, this could have undesirable side effects
            // as indicated by JDK-4872014. So we will instead
            // rely on the fact that close() will remove the lock
            // file and that whoever is creating FileHandlers should
            // be responsible for closing them.
            } catch (IOException ix) {
                // We got an IOException while trying to get the lock.
                // This normally indicates that locking is not supported
                // on the target directory.  We have to proceed without
                // getting a lock.   Drop through, but only if we did
                // create the file...
                available = fileCreated;
            } catch (OverlappingFileLockException x) {
                // someone already locked this file in this VM, through
                // some other channel - that is - using something else
                // than new FileHandler(...);
                // continue searching for an available lock.
                available = false;
            }
            if (available) {
                // We got the lock.  Remember it.
                locks.add(lockFileName);
                break;
            }
            // We failed to get the lock.  Try next file.
            lockFileChannel.close();
        }
    }
    files = new File[count];
    for (int i = 0; i < count; i++) {
        files[i] = generate(pattern, i, unique);
    }
    // Create the initial log file.
    if (append) {
        open(files[0], true);
    } else {
        rotate();
    }
    // Did we detect any exceptions during initialization?
    Exception ex = em.lastException;
    if (ex != null) {
        if (ex instanceof IOException) {
            throw (IOException) ex;
        } else if (ex instanceof SecurityException) {
            throw (SecurityException) ex;
        } else {
            throw new IOException("Exception: " + ex);
        }
    }
    // Install the normal default ErrorManager.
    setErrorManager(new ErrorManager());
}

Example 37 with FileAlreadyExistsException

use of java.nio.file.FileAlreadyExistsException in project beam by apache.

the class GcsUtil method createBucket.

@VisibleForTesting
void createBucket(String projectId, Bucket bucket, BackOff backoff, Sleeper sleeper) throws IOException {
    Storage.Buckets.Insert insertBucket = storageClient.buckets().insert(projectId, bucket);
    insertBucket.setPredefinedAcl("projectPrivate");
    insertBucket.setPredefinedDefaultObjectAcl("projectPrivate");
    try {
        ResilientOperation.retry(ResilientOperation.getGoogleRequestCallable(insertBucket), backoff, new RetryDeterminer<IOException>() {

            @Override
            public boolean shouldRetry(IOException e) {
                if (errorExtractor.itemAlreadyExists(e) || errorExtractor.accessDenied(e)) {
                    return false;
                }
                return RetryDeterminer.SOCKET_ERRORS.shouldRetry(e);
            }
        }, IOException.class, sleeper);
        return;
    } catch (GoogleJsonResponseException e) {
        if (errorExtractor.accessDenied(e)) {
            throw new AccessDeniedException(bucket.getName(), null, e.getMessage());
        }
        if (errorExtractor.itemAlreadyExists(e)) {
            throw new FileAlreadyExistsException(bucket.getName(), null, e.getMessage());
        }
        throw e;
    } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
        throw new IOException(String.format("Error while attempting to create bucket gs://%s for rproject %s", bucket.getName(), projectId), e);
    }
}

Example 38 with FileAlreadyExistsException

use of java.nio.file.FileAlreadyExistsException in project lucene-solr by apache.

the class HardlinkCopyDirectoryWrapper method copyFrom.

@Override
public void copyFrom(Directory from, String srcFile, String destFile, IOContext context) throws IOException {
    final Directory fromUnwrapped = FilterDirectory.unwrap(from);
    final Directory toUnwrapped = FilterDirectory.unwrap(this);
    // try to unwrap to FSDirectory - we might be able to just create hard-links of these files and save copying
    // the entire file.
    Exception suppressedException = null;
    boolean tryCopy = true;
    if (fromUnwrapped instanceof FSDirectory && toUnwrapped instanceof FSDirectory) {
        final Path fromPath = ((FSDirectory) fromUnwrapped).getDirectory();
        final Path toPath = ((FSDirectory) toUnwrapped).getDirectory();
        if (Files.isReadable(fromPath.resolve(srcFile)) && Files.isWritable(toPath)) {
            // only try hardlinks if we have permission to access the files
            // if not super.copyFrom() will give us the right exceptions
            suppressedException = AccessController.doPrivileged((PrivilegedAction<Exception>) () -> {
                try {
                    Files.createLink(toPath.resolve(destFile), fromPath.resolve(srcFile));
                } catch (FileNotFoundException | NoSuchFileException | FileAlreadyExistsException ex) {
                    return ex;
                } catch (IOException | UnsupportedOperationException | SecurityException ex) {
                    return ex;
                }
                return null;
            });
            tryCopy = suppressedException != null;
        }
    }
    if (tryCopy) {
        try {
            super.copyFrom(from, srcFile, destFile, context);
        } catch (Exception ex) {
            if (suppressedException != null) {
                ex.addSuppressed(suppressedException);
            }
            throw ex;
        }
    }
}