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* fix NPE

This commit is contained in:
Reinhard Pointner 2014-03-29 02:24:37 +00:00
parent 6b2659f2a4
commit 92a433a77f
1 changed files with 46 additions and 69 deletions
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33
source/net/sourceforge/filebot/cli/FolderWatchService.java
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@ -1,7 +1,5 @@
package net.sourceforge.filebot.cli; package net.sourceforge.filebot.cli;
import static java.nio.file.StandardWatchEventKinds.*; import static java.nio.file.StandardWatchEventKinds.*;
import static java.util.Collections.*; import static java.util.Collections.*;
import static net.sourceforge.tuned.FileUtilities.*; import static net.sourceforge.tuned.FileUtilities.*;
@ -29,7 +27,6 @@ import java.util.logging.Logger;
import net.sourceforge.tuned.DefaultThreadFactory; import net.sourceforge.tuned.DefaultThreadFactory;
import net.sourceforge.tuned.Timer; import net.sourceforge.tuned.Timer;
public abstract class FolderWatchService implements Closeable { public abstract class FolderWatchService implements Closeable {
private final Collection<File> commitSet = new HashSet<File>(); private final Collection<File> commitSet = new HashSet<File>();
@ -51,17 +48,14 @@ public abstract class FolderWatchService implements Closeable {
private final boolean watchTree; private final boolean watchTree;
public FolderWatchService(boolean watchTree) { public FolderWatchService(boolean watchTree) {
this.watchTree = watchTree; this.watchTree = watchTree;
} }
public synchronized void setCommitPerFolder(boolean enabled) { public synchronized void setCommitPerFolder(boolean enabled) {
this.commitPerFolder = enabled; this.commitPerFolder = enabled;
} }
public synchronized void setCommitDelay(long commitDelay) { public synchronized void setCommitDelay(long commitDelay) {
if (commitDelay < 0) if (commitDelay < 0)
throw new IllegalArgumentException("Delay must not be negativ"); throw new IllegalArgumentException("Delay must not be negativ");
@ -70,12 +64,10 @@ public abstract class FolderWatchService implements Closeable {
resetCommitTimer(); resetCommitTimer();
} }
public synchronized void resetCommitTimer() { public synchronized void resetCommitTimer() {
commitTimer.set(commitDelay, TimeUnit.MILLISECONDS, false); commitTimer.set(commitDelay, TimeUnit.MILLISECONDS, false);
} }
public synchronized void commit() { public synchronized void commit() {
final SortedSet<File> files = new TreeSet<File>(); final SortedSet<File> files = new TreeSet<File>();
@ -108,10 +100,8 @@ public abstract class FolderWatchService implements Closeable {
}); });
} }
public abstract void processCommitSet(File[] files, File dir); public abstract void processCommitSet(File[] files, File dir);
public synchronized void watchFolder(File folder) throws IOException { public synchronized void watchFolder(File folder) throws IOException {
if (!watchTree) { if (!watchTree) {
startWatch(folder); startWatch(folder);
@ -121,16 +111,17 @@ public abstract class FolderWatchService implements Closeable {
watchFolderTree(folder); watchFolderTree(folder);
} }
private void watchFolderTree(File root) throws IOException { private void watchFolderTree(File root) throws IOException {
for (File it : root.listFiles(FOLDERS)) { File[] folders = root.listFiles(FOLDERS);
watchFolderTree(it); if (folders != null) {
for (File it : folders) {
watchFolderTree(it);
}
} }
startWatch(root); startWatch(root);
} }
private synchronized void startWatch(File node) throws IOException { private synchronized void startWatch(File node) throws IOException {
if (!node.isDirectory()) { if (!node.isDirectory()) {
throw new IllegalArgumentException("Must be a folder: " + node); throw new IllegalArgumentException("Must be a folder: " + node);
@ -146,7 +137,6 @@ public abstract class FolderWatchService implements Closeable {
} }
} }
@Override @Override
protected void created(File file) { protected void created(File file) {
synchronized (commitSet) { synchronized (commitSet) {
@ -167,7 +157,6 @@ public abstract class FolderWatchService implements Closeable {
} }
} }
@Override @Override
protected void modified(File file) { protected void modified(File file) {
synchronized (commitSet) { synchronized (commitSet) {
@ -177,7 +166,6 @@ public abstract class FolderWatchService implements Closeable {
} }
} }
@Override @Override
protected void deleted(File file) { protected void deleted(File file) {
synchronized (commitSet) { synchronized (commitSet) {
@ -187,7 +175,6 @@ public abstract class FolderWatchService implements Closeable {
}); });
} }
@Override @Override
public synchronized void close() throws IOException { public synchronized void close() throws IOException {
commitTimer.cancel(); commitTimer.cancel();
@ -195,20 +182,17 @@ public abstract class FolderWatchService implements Closeable {
watchers.shutdownNow(); watchers.shutdownNow();
} }
private abstract static class FolderWatcher implements Runnable, Closeable { private abstract static class FolderWatcher implements Runnable, Closeable {
private final Path node; private final Path node;
private final WatchService watchService; private final WatchService watchService;
public FolderWatcher(File node) throws IOException { public FolderWatcher(File node) throws IOException {
this.node = node.toPath(); this.node = node.toPath();
this.watchService = this.node.getFileSystem().newWatchService(); this.watchService = this.node.getFileSystem().newWatchService();
this.node.register(watchService, ENTRY_CREATE, ENTRY_MODIFY, ENTRY_DELETE); this.node.register(watchService, ENTRY_CREATE, ENTRY_MODIFY, ENTRY_DELETE);
} }
@Override @Override
public void run() { public void run() {
try { try {
@ -220,7 +204,6 @@ public abstract class FolderWatchService implements Closeable {
} }
} }
public void watch() throws IOException, InterruptedException { public void watch() throws IOException, InterruptedException {
try { try {
boolean valid = true; boolean valid = true;
@ -234,12 +217,10 @@ public abstract class FolderWatchService implements Closeable {
} }
} }
public File getAbsoluteFile(WatchEvent event) { public File getAbsoluteFile(WatchEvent event) {
return node.resolve(event.context().toString()).toFile(); return node.resolve(event.context().toString()).toFile();
} }
protected void processEvents(List<WatchEvent<?>> list) { protected void processEvents(List<WatchEvent<?>> list) {
for (WatchEvent event : list) { for (WatchEvent event : list) {
if (event.kind() == ENTRY_CREATE) { if (event.kind() == ENTRY_CREATE) {
@ -252,16 +233,12 @@ public abstract class FolderWatchService implements Closeable {
} }
} }
protected abstract void created(File file); protected abstract void created(File file);
protected abstract void modified(File file); protected abstract void modified(File file);
protected abstract void deleted(File file); protected abstract void deleted(File file);
@Override @Override
public void close() throws IOException { public void close() throws IOException {
watchService.close(); watchService.close();