/*
* Copyright 2014 the original author or 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 org.gradle.plugins.ide.internal.resolver.model;
import com.google.common.base.Objects;
import com.google.common.base.Preconditions;
import org.gradle.plugins.ide.idea.model.Dependency;
/**
* Key used to merge same dependency extracted from different configurations.
*/
public abstract class IdeDependencyKey<T extends IdeDependency, R> {
public static IdeDependencyKey<IdeExtendedRepoFileDependency, Dependency> forRepoFileDependency(
IdeExtendedRepoFileDependency dependency, DependencyBuilder<IdeExtendedRepoFileDependency, Dependency> dependencyBuilder) {
return new RepoFileDependencyKey<Dependency>(dependency, dependencyBuilder);
}
public interface DependencyBuilder<T extends IdeDependency, R> {
R buildDependency(T dependency, String scope);
}
public static <D> IdeDependencyKey<IdeProjectDependency, D> forProjectDependency(
IdeProjectDependency dependency, DependencyBuilder<IdeProjectDependency, D> dependencyBuilder) {
return new ProjectDependencyKey<D>(dependency, dependencyBuilder);
}
public static <D> IdeDependencyKey<IdeLocalFileDependency, D> forLocalFileDependency(
IdeLocalFileDependency dependency, DependencyBuilder<IdeLocalFileDependency, D> dependencyBuilder) {
return new LocalFileDependencyKey<D>(dependency, dependencyBuilder);
}
protected final T ideDependency;
private final DependencyBuilder<T, ? extends R> dependencyBuilder;
protected IdeDependencyKey(T ideDependency, DependencyBuilder<T, R> dependencyBuilder) {
this.ideDependency = Preconditions.checkNotNull(ideDependency);
this.dependencyBuilder = Preconditions.checkNotNull(dependencyBuilder);
}
public R buildDependency(String scope) {
return dependencyBuilder.buildDependency(ideDependency, scope);
}
protected abstract boolean isSameDependency(IdeDependency otherDependency);
protected abstract int dependencyHashCode();
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof IdeDependencyKey)) {
return false;
}
IdeDependencyKey that = (IdeDependencyKey) o;
return isSameDependency(that.ideDependency);
}
@Override
public int hashCode() {
return dependencyHashCode();
}
private static class LocalFileDependencyKey<R> extends IdeDependencyKey<IdeLocalFileDependency, R> {
private LocalFileDependencyKey(IdeLocalFileDependency dependency, DependencyBuilder<IdeLocalFileDependency, R> dependencyBuilder) {
super(dependency, dependencyBuilder);
}
@Override
protected int dependencyHashCode() {
return ideDependency.getFile().hashCode();
}
@Override
protected boolean isSameDependency(IdeDependency otherDependency) {
return otherDependency instanceof IdeLocalFileDependency && Objects.equal(ideDependency.getFile(), ((IdeLocalFileDependency) otherDependency).getFile());
}
public String toString() {
return "LocalFileDependencyKey{" + ideDependency.getFile() + "}";
}
}
private static class ProjectDependencyKey<R> extends IdeDependencyKey<IdeProjectDependency, R> {
private ProjectDependencyKey(IdeProjectDependency dependency, DependencyBuilder<IdeProjectDependency, R> dependencyBuilder) {
super(dependency, dependencyBuilder);
}
@Override
protected int dependencyHashCode() {
return ideDependency.getProjectId().hashCode();
}
@Override
protected boolean isSameDependency(IdeDependency otherDependency) {
return otherDependency instanceof IdeProjectDependency && Objects.equal(ideDependency.getProjectId(), ((IdeProjectDependency) otherDependency).getProjectId());
}
@Override
public String toString() {
return "ProjectDependencyKey{" + ideDependency.getProjectId() + "}";
}
}
private static class RepoFileDependencyKey<R> extends IdeDependencyKey<IdeExtendedRepoFileDependency, R> {
private RepoFileDependencyKey(IdeExtendedRepoFileDependency dependency, DependencyBuilder<IdeExtendedRepoFileDependency, R> dependencyBuilder) {
super(dependency, dependencyBuilder);
}
@Override
protected int dependencyHashCode() {
int hash = ideDependency.getFile().hashCode();
hash = 31 * hash + (ideDependency.getId() != null ? ideDependency.getId().hashCode() : 1);
return hash;
}
@Override
protected boolean isSameDependency(IdeDependency otherDependency) {
if (!(otherDependency instanceof IdeRepoFileDependency)) {
return false;
}
IdeRepoFileDependency that = (IdeRepoFileDependency) otherDependency;
return Objects.equal(ideDependency.getFile(), that.getFile()) && Objects.equal(ideDependency.getId(), that.getId());
}
@Override
public String toString() {
return "RepoFileDependencyKey{" + ideDependency.getId() + "}";
}
}
}