com.amazonaws.services.ec2.model.PortRange Maven / Gradle / Ivy

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The Amazon Web Services SDK for Java provides Java APIs for building software on AWS' cost-effective, scalable, and reliable infrastructure products. The AWS Java SDK allows developers to code against APIs for all of Amazon's infrastructure web services (Amazon S3, Amazon EC2, Amazon SQS, Amazon Relational Database Service, Amazon AutoScaling, etc).

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/*
 * Copyright 2010-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 * 
 *  http://aws.amazon.com/apache2.0
 * 
 * or in the "license" file accompanying this file. This file 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 com.amazonaws.services.ec2.model;

import java.io.Serializable;

/**
 * 
 * Describes a range of ports.
 * 
 */
public class PortRange implements Serializable {

    /**
     * The first port in the range.
     */
    private Integer from;

    /**
     * The last port in the range.
     */
    private Integer to;

    /**
     * The first port in the range.
     *
     * @return The first port in the range.
     */
    public Integer getFrom() {
        return from;
    }
    
    /**
     * The first port in the range.
     *
     * @param from The first port in the range.
     */
    public void setFrom(Integer from) {
        this.from = from;
    }
    
    /**
     * The first port in the range.
     * 
     * Returns a reference to this object so that method calls can be chained together.
     *
     * @param from The first port in the range.
     *
     * @return A reference to this updated object so that method calls can be chained 
     *         together.
     */
    public PortRange withFrom(Integer from) {
        this.from = from;
        return this;
    }

    /**
     * The last port in the range.
     *
     * @return The last port in the range.
     */
    public Integer getTo() {
        return to;
    }
    
    /**
     * The last port in the range.
     *
     * @param to The last port in the range.
     */
    public void setTo(Integer to) {
        this.to = to;
    }
    
    /**
     * The last port in the range.
     * 
     * Returns a reference to this object so that method calls can be chained together.
     *
     * @param to The last port in the range.
     *
     * @return A reference to this updated object so that method calls can be chained 
     *         together.
     */
    public PortRange withTo(Integer to) {
        this.to = to;
        return this;
    }

    /**
     * Returns a string representation of this object; useful for testing and
     * debugging.
     *
     * @return A string representation of this object.
     *
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getFrom() != null) sb.append("From: " + getFrom() + ",");
        if (getTo() != null) sb.append("To: " + getTo() );
        sb.append("}");
        return sb.toString();
    }
    
    @Override
    public int hashCode() {
        final int prime = 31;
        int hashCode = 1;
        
        hashCode = prime * hashCode + ((getFrom() == null) ? 0 : getFrom().hashCode()); 
        hashCode = prime * hashCode + ((getTo() == null) ? 0 : getTo().hashCode()); 
        return hashCode;
    }
    
    @Override
    public boolean equals(Object obj) {
        if (this == obj) return true;
        if (obj == null) return false;

        if (obj instanceof PortRange == false) return false;
        PortRange other = (PortRange)obj;
        
        if (other.getFrom() == null ^ this.getFrom() == null) return false;
        if (other.getFrom() != null && other.getFrom().equals(this.getFrom()) == false) return false; 
        if (other.getTo() == null ^ this.getTo() == null) return false;
        if (other.getTo() != null && other.getTo().equals(this.getTo()) == false) return false; 
        return true;
    }
    
}