[LIB-8] Add Event Rounds and Seedings functional

[snooker-score-api.git] / src / main / java / org / hedgecode / snooker / compare / SeedingComparators.java
diff --git a/src/main/java/org/hedgecode/snooker/compare/SeedingComparators.java b/src/main/java/org/hedgecode/snooker/compare/SeedingComparators.java

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+/*
+ * Copyright (c) 2017-2019. Developed by Hedgecode.
+ *
+ * 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 org.hedgecode.snooker.compare;
+
+import java.io.Serializable;
+import java.util.Comparator;
+
+import org.hedgecode.snooker.api.Seeding;
+
+/**
+ * Set of Comparators for {@link Seeding}.
+ * 1. Sorting by Event {@link EventComparator};
+ * 2. Sorting by Player {@link PlayerComparator};
+ * 3. Sorting by Seeding Number {@link SeedingComparator}.
+ *
+ * @author Dmitry Samoshin aka gotty
+ */
+public enum SeedingComparators {
+
+    EVENT   ( new EventComparator() ),
+    PLAYER  ( new PlayerComparator() ),
+    SEEDING ( new SeedingComparator() );
+
+    private Comparator<Seeding> comparator;
+
+    SeedingComparators(Comparator<Seeding> comparator) {
+        this.comparator = comparator;
+    }
+
+    public Comparator<Seeding> comparator() {
+        return comparator;
+    }
+
+    static class EventComparator implements Comparator<Seeding>, Serializable {
+
+        @Override
+        public int compare(Seeding seeding1, Seeding seeding2) {
+            return seeding1.eventId() - seeding2.eventId();
+        }
+
+    }
+
+    static class PlayerComparator implements Comparator<Seeding>, Serializable {
+
+        @Override
+        public int compare(Seeding seeding1, Seeding seeding2) {
+            return seeding1.playerId() - seeding2.playerId();
+        }
+
+    }
+
+    static class SeedingComparator implements Comparator<Seeding>, Serializable {
+
+        @Override
+        public int compare(Seeding seeding1, Seeding seeding2) {
+            return seeding1.seeding() - seeding2.seeding();
+        }
+
+    }
+
+}