Rabbit-R1/android (non root)/java/sources/com/google/common/graph/StandardMutableNetwork.java
2024-05-21 17:08:36 -04:00

119 lines
5 KiB
Java

package com.google.common.graph;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.UnmodifiableIterator;
import java.util.Collection;
import java.util.Objects;
/* JADX INFO: Access modifiers changed from: package-private */
@ElementTypesAreNonnullByDefault
/* loaded from: classes3.dex */
public final class StandardMutableNetwork<N, E> extends StandardNetwork<N, E> implements MutableNetwork<N, E> {
/* JADX INFO: Access modifiers changed from: package-private */
public StandardMutableNetwork(NetworkBuilder<? super N, ? super E> networkBuilder) {
super(networkBuilder);
}
@Override // com.google.common.graph.MutableNetwork
public boolean addNode(N n) {
Preconditions.checkNotNull(n, "node");
if (containsNode(n)) {
return false;
}
addNodeInternal(n);
return true;
}
private NetworkConnections<N, E> addNodeInternal(N n) {
NetworkConnections<N, E> newConnections = newConnections();
Preconditions.checkState(this.nodeConnections.put(n, newConnections) == null);
return newConnections;
}
@Override // com.google.common.graph.MutableNetwork
public boolean addEdge(N n, N n2, E e) {
Preconditions.checkNotNull(n, "nodeU");
Preconditions.checkNotNull(n2, "nodeV");
Preconditions.checkNotNull(e, "edge");
if (containsEdge(e)) {
EndpointPair<N> incidentNodes = incidentNodes(e);
EndpointPair of = EndpointPair.of(this, n, n2);
Preconditions.checkArgument(incidentNodes.equals(of), "Edge %s already exists between the following nodes: %s, so it cannot be reused to connect the following nodes: %s.", e, incidentNodes, of);
return false;
}
NetworkConnections<N, E> networkConnections = this.nodeConnections.get(n);
if (!allowsParallelEdges()) {
Preconditions.checkArgument(networkConnections == null || !networkConnections.successors().contains(n2), "Nodes %s and %s are already connected by a different edge. To construct a graph that allows parallel edges, call allowsParallelEdges(true) on the Builder.", n, n2);
}
boolean equals = n.equals(n2);
if (!allowsSelfLoops()) {
Preconditions.checkArgument(!equals, "Cannot add self-loop edge on node %s, as self-loops are not allowed. To construct a graph that allows self-loops, call allowsSelfLoops(true) on the Builder.", n);
}
if (networkConnections == null) {
networkConnections = addNodeInternal(n);
}
networkConnections.addOutEdge(e, n2);
NetworkConnections<N, E> networkConnections2 = this.nodeConnections.get(n2);
if (networkConnections2 == null) {
networkConnections2 = addNodeInternal(n2);
}
networkConnections2.addInEdge(e, n, equals);
this.edgeToReferenceNode.put(e, n);
return true;
}
@Override // com.google.common.graph.MutableNetwork
public boolean addEdge(EndpointPair<N> endpointPair, E e) {
validateEndpoints(endpointPair);
return addEdge(endpointPair.nodeU(), endpointPair.nodeV(), e);
}
@Override // com.google.common.graph.MutableNetwork
public boolean removeNode(N n) {
Preconditions.checkNotNull(n, "node");
NetworkConnections<N, E> networkConnections = this.nodeConnections.get(n);
if (networkConnections == null) {
return false;
}
UnmodifiableIterator<E> it = ImmutableList.copyOf((Collection) networkConnections.incidentEdges()).iterator();
while (it.hasNext()) {
removeEdge(it.next());
}
this.nodeConnections.remove(n);
return true;
}
@Override // com.google.common.graph.MutableNetwork
public boolean removeEdge(E e) {
Preconditions.checkNotNull(e, "edge");
N n = this.edgeToReferenceNode.get(e);
boolean z = false;
if (n == null) {
return false;
}
NetworkConnections networkConnections = (NetworkConnections) Objects.requireNonNull(this.nodeConnections.get(n));
Object adjacentNode = networkConnections.adjacentNode(e);
NetworkConnections networkConnections2 = (NetworkConnections) Objects.requireNonNull(this.nodeConnections.get(adjacentNode));
networkConnections.removeOutEdge(e);
if (allowsSelfLoops() && n.equals(adjacentNode)) {
z = true;
}
networkConnections2.removeInEdge(e, z);
this.edgeToReferenceNode.remove(e);
return true;
}
private NetworkConnections<N, E> newConnections() {
if (isDirected()) {
if (allowsParallelEdges()) {
return DirectedMultiNetworkConnections.of();
}
return DirectedNetworkConnections.of();
}
if (allowsParallelEdges()) {
return UndirectedMultiNetworkConnections.of();
}
return UndirectedNetworkConnections.of();
}
}