Migrate to tech.pantheon.TrieMap

[yangtools.git] / third-party / triemap / src / main / java / org / opendaylight / yangtools / triemap / AbstractKeySet.java

diff --git a/third-party/triemap/src/main/java/org/opendaylight/yangtools/triemap/AbstractKeySet.java b/third-party/triemap/src/main/java/org/opendaylight/yangtools/triemap/AbstractKeySet.java
deleted file mode 100644 (file)
index 6ed4807..0000000
--- a/third-party/triemap/src/main/java/org/opendaylight/yangtools/triemap/AbstractKeySet.java
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * (C) Copyright 2016 Pantheon Technologies, s.r.o. and others.
- *
- * 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.opendaylight.yangtools.triemap;
-
-import static java.util.Objects.requireNonNull;
-
-import com.google.common.collect.Iterators;
-import java.util.AbstractSet;
-import java.util.Collection;
-import java.util.Map.Entry;
-import java.util.Spliterator;
-import java.util.Spliterators;
-
-/**
- * Abstract base class for key set views of a TrieMap.
- *
- * @author Robert Varga
- *
- * @param <K> the type of keys
- */
-abstract class AbstractKeySet<K> extends AbstractSet<K> {
-    private final TrieMap<K, ?> map;
-
-    AbstractKeySet(final TrieMap<K, ?> map) {
-        this.map = requireNonNull(map);
-    }
-
-    final TrieMap<K, ?> map() {
-        return map;
-    }
-
-    @Override
-    @SuppressWarnings("checkstyle:parameterName")
-    public final boolean add(final K e) {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    @SuppressWarnings("checkstyle:parameterName")
-    public final boolean addAll(final Collection<? extends K> c) {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    @SuppressWarnings("checkstyle:parameterName")
-    public final boolean contains(final Object o) {
-        return map.containsKey(o);
-    }
-
-    @Override
-    public final boolean isEmpty() {
-        return map.isEmpty();
-    }
-
-    @Override
-    public final int size() {
-        return map.size();
-    }
-
-    @Override
-    public final Spliterator<K> spliterator() {
-        // TODO: this is backed by an Iterator, we should be able to do better
-        return Spliterators.spliterator(Iterators.transform(map().immutableIterator(), Entry::getKey), Long.MAX_VALUE,
-            spliteratorCharacteristics());
-    }
-
-    abstract int spliteratorCharacteristics();
-}