guru.nidi.graphviz.model.Link Maven / Gradle / Ivy
/*
* Copyright © 2015 Stefan Niederhauser ([email protected])
*
* 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 guru.nidi.graphviz.model;
import guru.nidi.graphviz.attribute.*;
import javax.annotation.Nullable;
import java.util.Objects;
public final class Link implements Attributed, LinkTarget {
@Nullable
final LinkSource from;
final LinkTarget to;
final MutableAttributed attributes;
public static Link to(MutableNode node) {
return to(node.port((String) null));
}
public static Link to(Node node) {
return to(node.port((String) null));
}
public static Link to(LinkTarget to) {
return between((LinkSource) null, to);
}
public LinkTarget to() {
return to;
}
public static Link between(Port port, LinkTarget to) {
return between(new PortSource(port), to);
}
static Link between(@Nullable LinkSource from, LinkTarget to) {
return CreationContext.createLink(from, to);
}
Link(@Nullable LinkSource from, LinkTarget to, Attributes extends ForLink> attributes) {
this.from = from;
this.to = to;
this.attributes = new SimpleMutableAttributed<>(this, attributes);
}
public Link add(Attributes extends ForLink> attrs) {
attributes.add(attrs);
return this;
}
public Link with(Attributes extends ForLink> attrs) {
@SuppressWarnings("unchecked") final Attributes extends ForLink> as =
(Attributes) attrs.applyTo(attributes.copy());
return new Link(from, to, as);
}
@Override
public Label name() {
return to.name();
}
@Override
public Attributes super ForLink> applyTo(MapAttributes super ForLink> attrs) {
return attributes.applyTo(attrs);
}
@Override
public Link linkTo() {
return this;
}
public LinkTarget asLinkTarget() {
return to(from.asLinkTarget());
}
@Override
public LinkSource asLinkSource() {
return to.asLinkSource();
}
@Nullable
public LinkSource from() {
return from;
}
//TODO differentiate between mutable and immutable
public MutableAttributed attrs() {
return attributes;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
final Link entries = (Link) o;
return Objects.equals(from, entries.from)
&& to.equals(entries.to)
&& attributes.equals(entries.attributes);
}
@Override
public int hashCode() {
return Objects.hash(from, to, attributes);
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy