Example usage for java.nio.file WatchEvent.Kind toString

Introduction

In this page you can find the example usage for java.nio.file WatchEvent.Kind toString.

Prototype

public String toString() 

Source Link

Document

Returns a string representation of the object.

Usage

From source file:org.dia.kafka.isatools.producer.DirWatcher.java

/**
 * Process all events for keys queued to the watcher
 * @param isatProd/*from   w w  w.ja  v  a2 s .  c  o  m*/
 */
void processEvents(ISAToolsKafkaProducer isatProd) {
    for (;;) {

        // wait for key to be signalled
        WatchKey key;
        try {
            key = watcher.take();
        } catch (InterruptedException x) {
            return;
        }

        Path dir = keys.get(key);
        if (dir == null) {
            System.err.println("WatchKey not recognized!!");
            continue;
        }

        List<JSONObject> jsonParsedResults = new ArrayList<JSONObject>();

        for (WatchEvent<?> event : key.pollEvents()) {
            WatchEvent.Kind kind = event.kind();

            // TBD - provide example of how OVERFLOW event is handled
            if (kind == OVERFLOW) {
                continue;
            }

            // Context for directory entry event is the file name of entry
            WatchEvent<Path> ev = cast(event);
            Path name = ev.context();
            Path child = dir.resolve(name);

            // If an inner file has been modify then, recreate the entry
            if (kind == ENTRY_MODIFY || kind == ENTRY_CREATE) {
                File fileCheck = child.getParent().toFile();
                if (child.toFile().isDirectory()) {
                    fileCheck = child.toFile();
                }

                System.out.format("[%s] %s : %s\n", this.getClass().getSimpleName(), kind.toString(),
                        fileCheck.getAbsolutePath());
                List<String> folderFiles = ISAToolsKafkaProducer.getFolderFiles(fileCheck);
                List<JSONObject> jsonObjects = ISAToolsKafkaProducer.doTikaRequest(folderFiles);
                if (!jsonObjects.isEmpty()) {
                    //                        jsonParsedResults.addAll(jsonObjects);
                    isatProd.sendISAToolsUpdates(jsonObjects);
                }
            }

            // TODO this event has still to be specified for documents
            if (kind == ENTRY_DELETE) {
                System.err.println(String.format("Delete event not supported %s", child.toAbsolutePath()));
            }

            // if directory is created, and watching recursively, then
            // register it and its sub-directories
            if (kind == ENTRY_CREATE) {
                try {
                    if (Files.isDirectory(child, NOFOLLOW_LINKS)) {
                        registerAll(child);
                    }
                } catch (IOException x) {
                    // ignore to keep sample readbale
                    System.err.format("IOException when creating %s \n", child.toAbsolutePath());
                }
            }
        }

        // reset key and remove from set if directory no longer accessible
        boolean valid = key.reset();
        if (!valid) {
            keys.remove(key);

            // all directories are inaccessible
            if (keys.isEmpty()) {
                break;
            }
        }
    }
}

---