/*
* Copyright 2012 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.internal.id;
import java.io.Serializable;
public class CompositeIdGenerator implements IdGenerator<Object> {
private final Object scope;
private final IdGenerator<?> generator;
public CompositeIdGenerator(Object scope, IdGenerator<?> generator) {
this.scope = scope;
this.generator = generator;
}
public Object generateId() {
return new CompositeId(scope, generator.generateId());
}
public static class CompositeId implements Serializable {
private final Object scope;
private final Object id;
public CompositeId(Object scope, Object id) {
this.id = id;
this.scope = scope;
}
@Override
public boolean equals(Object o) {
if (o == this) {
return true;
}
if (o == null || o.getClass() != getClass()) {
return false;
}
CompositeId other = (CompositeId) o;
return other.id.equals(id) && other.scope.equals(scope);
}
@Override
public int hashCode() {
return scope.hashCode() ^ id.hashCode();
}
public Object getScope() {
return scope;
}
public Object getId() {
return id;
}
@Override
public String toString() {
return scope + "." + id;
}
}
}