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Diffstat (limited to 'android/guava/src/com/google/common/graph/ImmutableGraph.java')
-rw-r--r--android/guava/src/com/google/common/graph/ImmutableGraph.java98
1 files changed, 0 insertions, 98 deletions
diff --git a/android/guava/src/com/google/common/graph/ImmutableGraph.java b/android/guava/src/com/google/common/graph/ImmutableGraph.java
deleted file mode 100644
index c878a5c53..000000000
--- a/android/guava/src/com/google/common/graph/ImmutableGraph.java
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- * Copyright (C) 2014 The Guava Authors
- *
- * 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 com.google.common.graph;
-
-import static com.google.common.base.Preconditions.checkNotNull;
-
-import com.google.common.annotations.Beta;
-import com.google.common.base.Function;
-import com.google.common.base.Functions;
-import com.google.common.collect.ImmutableMap;
-import com.google.common.collect.Maps;
-import com.google.common.graph.GraphConstants.Presence;
-import com.google.errorprone.annotations.Immutable;
-
-/**
- * A {@link Graph} whose elements and structural relationships will never change. Instances of this
- * class may be obtained with {@link #copyOf(Graph)}.
- *
- * <p>See the Guava User's Guide's <a
- * href="https://github.com/google/guava/wiki/GraphsExplained#immutable-implementations">discussion
- * of the {@code Immutable*} types</a> for more information on the properties and guarantees
- * provided by this class.
- *
- * @author James Sexton
- * @author Joshua O'Madadhain
- * @author Omar Darwish
- * @param <N> Node parameter type
- * @since 20.0
- */
-@Beta
-@Immutable(containerOf = {"N"})
-public class ImmutableGraph<N> extends ForwardingGraph<N> {
- @SuppressWarnings("Immutable") // The backing graph must be immutable.
- private final BaseGraph<N> backingGraph;
-
- ImmutableGraph(BaseGraph<N> backingGraph) {
- this.backingGraph = backingGraph;
- }
-
- /** Returns an immutable copy of {@code graph}. */
- public static <N> ImmutableGraph<N> copyOf(Graph<N> graph) {
- return (graph instanceof ImmutableGraph)
- ? (ImmutableGraph<N>) graph
- : new ImmutableGraph<N>(
- new ConfigurableValueGraph<N, Presence>(
- GraphBuilder.from(graph), getNodeConnections(graph), graph.edges().size()));
- }
-
- /**
- * Simply returns its argument.
- *
- * @deprecated no need to use this
- */
- @Deprecated
- public static <N> ImmutableGraph<N> copyOf(ImmutableGraph<N> graph) {
- return checkNotNull(graph);
- }
-
- private static <N> ImmutableMap<N, GraphConnections<N, Presence>> getNodeConnections(
- Graph<N> graph) {
- // ImmutableMap.Builder maintains the order of the elements as inserted, so the map will have
- // whatever ordering the graph's nodes do, so ImmutableSortedMap is unnecessary even if the
- // input nodes are sorted.
- ImmutableMap.Builder<N, GraphConnections<N, Presence>> nodeConnections = ImmutableMap.builder();
- for (N node : graph.nodes()) {
- nodeConnections.put(node, connectionsOf(graph, node));
- }
- return nodeConnections.build();
- }
-
- private static <N> GraphConnections<N, Presence> connectionsOf(Graph<N> graph, N node) {
- Function<Object, Presence> edgeValueFn = Functions.constant(Presence.EDGE_EXISTS);
- return graph.isDirected()
- ? DirectedGraphConnections.ofImmutable(
- graph.predecessors(node), Maps.asMap(graph.successors(node), edgeValueFn))
- : UndirectedGraphConnections.ofImmutable(
- Maps.asMap(graph.adjacentNodes(node), edgeValueFn));
- }
-
- @Override
- protected BaseGraph<N> delegate() {
- return backingGraph;
- }
-}