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refactor ListenableFutureTask and make saves async

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// FREEBIE
This commit is contained in:
Jake McGinty
2014-10-28 02:23:00 -05:00
parent 53da1f849a
commit ff2ac8a66e
8 changed files with 107 additions and 54 deletions
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52
library/src/org/whispersystems/textsecure/util/ListenableFutureTask.java
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@@ -1,32 +1,30 @@
package org.whispersystems.textsecure.util;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.FutureTask;
public class ListenableFutureTask<V> extends FutureTask<V> {
// private WeakReference<FutureTaskListener<V>> listener;
private FutureTaskListener<V> listener;
private final List<FutureTaskListener<V>> listeners;
public ListenableFutureTask(Callable<V> callable, FutureTaskListener<V> listener) {
public ListenableFutureTask(Callable<V> callable) {
super(callable);
this.listener = listener;
// if (listener == null) {
// this.listener = null;
// } else {
// this.listener = new WeakReference<FutureTaskListener<V>>(listener);
// }
this.listeners = new LinkedList<>();
}
public synchronized void setListener(FutureTaskListener<V> listener) {
// if (listener != null) this.listener = new WeakReference<FutureTaskListener<V>>(listener);
// else this.listener = null;
this.listener = listener;
public synchronized void addListener(FutureTaskListener<V> listener) {
if (this.isDone()) {
callback();
callback(listener);
return;
}
listeners.add(listener);
}
public synchronized boolean removeListener(FutureTaskListener<V> listener) {
return listeners.remove(listener);
}
@Override
@@ -35,17 +33,19 @@ public class ListenableFutureTask<V> extends FutureTask<V> {
}
private void callback() {
if (this.listener != null) {
FutureTaskListener<V> nestedListener = this.listener;
// FutureTaskListener<V> nestedListener = this.listener.get();
if (nestedListener != null) {
try {
nestedListener.onSuccess(get());
} catch (ExecutionException ee) {
nestedListener.onFailure(ee);
} catch (InterruptedException e) {
throw new AssertionError(e);
}
for (FutureTaskListener<V> listener : listeners) {
callback(listener);
}
}
private void callback(FutureTaskListener<V> listener) {
if (listener != null) {
try {
listener.onSuccess(get());
} catch (ExecutionException ee) {
listener.onFailure(ee);
} catch (InterruptedException e) {
throw new AssertionError(e);
}
}
}