Change the license to GPL v3 to be compatible with Apache License 2.0.

HMCLAPI/src/main/java/rx/operators/OperationSubscribeOn.java

@@ -0,0 +1,67 @@
+/**
+ * Copyright 2013 Netflix, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package rx.operators;
+
+import rx.Observable;
+import rx.Observer;
+import rx.Scheduler;
+import rx.Subscription;
+import rx.util.functions.Action0;
+import rx.util.functions.Func1;
+
+
+public class OperationSubscribeOn {
+
+    public static <T> Func1<Observer<T>, Subscription> subscribeOn(Observable<T> source, Scheduler scheduler) {
+        return new SubscribeOn<>(source, scheduler);
+    }
+
+    private static class SubscribeOn<T> implements Func1<Observer<T>, Subscription> {
+        private final Observable<T> source;
+        private final Scheduler scheduler;
+
+        public SubscribeOn(Observable<T> source, Scheduler scheduler) {
+            this.source = source;
+            this.scheduler = scheduler;
+        }
+
+        @Override
+        public Subscription call(final Observer<T> observer) {
+            return scheduler.schedule(() -> new ScheduledSubscription(source.subscribe(observer), scheduler));
+        }
+    }
+
+    private static class ScheduledSubscription implements Subscription {
+        private final Subscription underlying;
+        private final Scheduler scheduler;
+
+        private ScheduledSubscription(Subscription underlying, Scheduler scheduler) {
+            this.underlying = underlying;
+            this.scheduler = scheduler;
+        }
+
+        @Override
+        public void unsubscribe() {
+            scheduler.schedule(new Action0() {
+                @Override
+                public void call() {
+                    underlying.unsubscribe();
+                }
+            });
+        }
+    }
+
+}