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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * Copyright (C) 2016 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 static com.google.common.graph.GraphConstants.DEFAULT_NODE_COUNT;
import static com.google.common.graph.Graphs.checkNonNegative;

import java.util.Map;
import java.util.Set;
import java.util.TreeMap;
import org.checkerframework.checker.nullness.compatqual.NullableDecl;

/**
 * Configurable implementation of {@link ValueGraph} that supports the options supplied by {@link
 * AbstractGraphBuilder}.
 *
 * This class maintains a map of nodes to {@link GraphConnections}.
 *
 * 
Collection-returning accessors return unmodifiable views: the view returned will reflect
 * changes to the graph (if the graph is mutable) but may not be modified by the user.
 *
 * The time complexity of all collection-returning accessors is O(1), since views are returned.
 *
 * @author James Sexton
 * @author Joshua O'Madadhain
 * @author Omar Darwish
 * @param  Node parameter type
 * @param  Value parameter type
 */
class ConfigurableValueGraph extends AbstractValueGraph {
  private final boolean isDirected;
  private final boolean allowsSelfLoops;
  private final ElementOrder nodeOrder;

  protected final MapIteratorCache> nodeConnections;

  protected long edgeCount; // must be updated when edges are added or removed

  /** Constructs a graph with the properties specified in {@code builder}. */
  ConfigurableValueGraph(AbstractGraphBuilder builder) {
    this(
        builder,
        builder.nodeOrder.>createMap(
            builder.expectedNodeCount.or(DEFAULT_NODE_COUNT)),
        0L);
  }

  /**
   * Constructs a graph with the properties specified in {@code builder}, initialized with the given
   * node map.
   */
  ConfigurableValueGraph(
      AbstractGraphBuilder builder,
      Map> nodeConnections,
      long edgeCount) {
    this.isDirected = builder.directed;
    this.allowsSelfLoops = builder.allowsSelfLoops;
    this.nodeOrder = builder.nodeOrder.cast();
    // Prefer the heavier "MapRetrievalCache" for nodes if lookup is expensive.
    this.nodeConnections =
        (nodeConnections instanceof TreeMap)
            ? new MapRetrievalCache>(nodeConnections)
            : new MapIteratorCache>(nodeConnections);
    this.edgeCount = checkNonNegative(edgeCount);
  }

  @Override
  public Set nodes() {
    return nodeConnections.unmodifiableKeySet();
  }

  @Override
  public boolean isDirected() {
    return isDirected;
  }

  @Override
  public boolean allowsSelfLoops() {
    return allowsSelfLoops;
  }

  @Override
  public ElementOrder nodeOrder() {
    return nodeOrder;
  }

  @Override
  public Set adjacentNodes(N node) {
    return checkedConnections(node).adjacentNodes();
  }

  @Override
  public Set predecessors(N node) {
    return checkedConnections(node).predecessors();
  }

  @Override
  public Set successors(N node) {
    return checkedConnections(node).successors();
  }

  @Override
  public boolean hasEdgeConnecting(N nodeU, N nodeV) {
    checkNotNull(nodeU);
    checkNotNull(nodeV);
    GraphConnections connectionsU = nodeConnections.get(nodeU);
    return (connectionsU != null) && connectionsU.successors().contains(nodeV);
  }

  @Override
  @NullableDecl
  public V edgeValueOrDefault(N nodeU, N nodeV, @NullableDecl V defaultValue) {
    checkNotNull(nodeU);
    checkNotNull(nodeV);
    GraphConnections connectionsU = nodeConnections.get(nodeU);
    V value = (connectionsU == null) ? null : connectionsU.value(nodeV);
    return value == null ? defaultValue : value;
  }

  @Override
  protected long edgeCount() {
    return edgeCount;
  }

  protected final GraphConnections checkedConnections(N node) {
    GraphConnections connections = nodeConnections.get(node);
    if (connections == null) {
      checkNotNull(node);
      throw new IllegalArgumentException("Node " + node + " is not an element of this graph.");
    }
    return connections;
  }

  protected final boolean containsNode(@NullableDecl N node) {
    return nodeConnections.containsKey(node);
  }
}