package com.andrognito.rxpatternlockview.utils;
import android.os.Looper;
import io.reactivex.Observer;
/**
* Created by aritraroy on 02/04/17.
*/
public final class Preconditions {
private Preconditions() {
throw new AssertionError("You can not instantiate this class. Use its static utility " +
"methods instead");
}
public static void checkNotNull(Object value, String message) {
if (value == null) {
throw new NullPointerException(message);
}
}
public static boolean checkMainThread(Observer<?> observer) {
if (Looper.myLooper() != Looper.getMainLooper()) {
observer.onError(new IllegalStateException(
"Expected to be called on the main thread but was " + Thread.currentThread().getName()));
return false;
}
return true;
}
}
