org.jclouds.ecs.domain.BillingToken.java Source code

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Here is the source code for org.jclouds.ecs.domain.BillingToken.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.jclouds.ecs.domain;

import static com.google.common.base.Preconditions.checkNotNull;

import java.beans.ConstructorProperties;

import com.google.common.base.Objects;
import com.google.common.base.Objects.ToStringHelper;
import com.google.common.primitives.Longs;

/**
 * Class BillingToken
 * 
*/
public class BillingToken implements Comparable<BillingToken> {

    public static Builder<?> builder() {
        return new ConcreteBuilder();
    }

    public Builder<?> toBuilder() {
        return new ConcreteBuilder().fromBillingToken(this);
    }

    public abstract static class Builder<T extends Builder<T>> {
        protected abstract T self();

        protected long id;
        protected String name;
        protected double price;

        /** 
         * @see BillingToken#getId()
         */
        public T id(long id) {
            this.id = id;
            return self();
        }

        /** 
         * @see BillingToken#getName()
         */
        public T name(String name) {
            this.name = name;
            return self();
        }

        /** 
         * @see BillingToken#getPrice()
         */
        public T price(double price) {
            this.price = price;
            return self();
        }

        public BillingToken build() {
            return new BillingToken(id, name, price);
        }

        public T fromBillingToken(BillingToken in) {
            return this.id(in.getId()).name(in.getName()).price(in.getPrice());
        }
    }

    private static class ConcreteBuilder extends Builder<ConcreteBuilder> {
        @Override
        protected ConcreteBuilder self() {
            return this;
        }
    }

    private final long id;
    private final String name;
    private final double price;

    @ConstructorProperties({ "id", "name", "price" })
    protected BillingToken(long id, String name, double price) {
        this.id = id;
        this.name = checkNotNull(name, "name");
        this.price = price;
    }

    public long getId() {
        return this.id;
    }

    public String getName() {
        return this.name;
    }

    public double getPrice() {
        return this.price;
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(id, name, price);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null || getClass() != obj.getClass())
            return false;
        BillingToken that = BillingToken.class.cast(obj);
        return Objects.equal(this.id, that.id) && Objects.equal(this.name, that.name)
                && Objects.equal(this.price, that.price);
    }

    protected ToStringHelper string() {
        return Objects.toStringHelper(this).add("id", id).add("name", name).add("price", price);
    }

    @Override
    public String toString() {
        return string().toString();
    }

    @Override
    public int compareTo(BillingToken o) {
        return Longs.compare(id, o.getId());
    }

}