Repository: flink
Updated Branches:
  refs/heads/master 8e85e1aa9 -> 8365c90b8


Add our own Deadline implementation


Project: http://git-wip-us.apache.org/repos/asf/flink/repo
Commit: http://git-wip-us.apache.org/repos/asf/flink/commit/3913382b
Tree: http://git-wip-us.apache.org/repos/asf/flink/tree/3913382b
Diff: http://git-wip-us.apache.org/repos/asf/flink/diff/3913382b

Branch: refs/heads/master
Commit: 3913382bfeccdf44fadde33c9adeb7be01978b35
Parents: 8e85e1a
Author: Aljoscha Krettek <aljoscha.kret...@gmail.com>
Authored: Wed Feb 28 15:06:59 2018 +0100
Committer: Aljoscha Krettek <aljoscha.kret...@gmail.com>
Committed: Sun Mar 11 08:17:20 2018 -0700

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 .../apache/flink/api/common/time/Deadline.java  | 68 ++++++++++++++++++++
 1 file changed, 68 insertions(+)
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http://git-wip-us.apache.org/repos/asf/flink/blob/3913382b/flink-core/src/main/java/org/apache/flink/api/common/time/Deadline.java
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diff --git 
a/flink-core/src/main/java/org/apache/flink/api/common/time/Deadline.java 
b/flink-core/src/main/java/org/apache/flink/api/common/time/Deadline.java
new file mode 100644
index 0000000..2db6579
--- /dev/null
+++ b/flink-core/src/main/java/org/apache/flink/api/common/time/Deadline.java
@@ -0,0 +1,68 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 org.apache.flink.api.common.time;
+
+import org.apache.flink.annotation.Internal;
+
+import java.time.Duration;
+
+/**
+ * This class stores a deadline, as obtained via {@link #now()} or from {@link 
#plus(Duration)}.
+ */
+@Internal
+public class Deadline {
+       private final long timeNanos;
+
+       private Deadline(Duration time) {
+               this.timeNanos = time.toNanos();
+       }
+
+       public Deadline plus(Duration other) {
+               return new Deadline(Duration.ofNanos(timeNanos).plus(other));
+       }
+
+       /**
+        * Returns the time left between the deadline and now. The result is 
negative if the deadline
+        * has passed.
+        */
+       public Duration timeLeft() {
+               return 
Duration.ofNanos(timeNanos).minus(Duration.ofNanos(System.nanoTime()));
+       }
+
+       /**
+        * Returns whether there is any time left between the deadline and now.
+        */
+       public boolean hasTimeLeft() {
+               return !isOverdue();
+       }
+
+       /**
+        * Determines whether the deadline is in the past, i.e. whether the 
time left is negative.
+        */
+       public boolean isOverdue() {
+               return timeNanos - System.nanoTime() < 0;
+       }
+
+       /**
+        * Constructs a {@link Deadline} that has now as the deadline. Use this 
and then extend via
+        * {@link #plus(Duration)} to specify a deadline in the future.
+        */
+       public static Deadline now() {
+               return new Deadline(Duration.ofNanos(System.nanoTime()));
+       }
+}

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