/*
 * Copyright 2010-2015 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.opsworks.model;

import java.io.Serializable;
import com.amazonaws.AmazonWebServiceRequest;

/**
 * 
 */
public class DescribeStacksRequest extends AmazonWebServiceRequest implements
        Serializable, Cloneable {

    /**
     * <p>
     * An array of stack IDs that specify the stacks to be described. If you
     * omit this parameter, <code>DescribeStacks</code> returns a description of
     * every stack.
     * </p>
     */
    private com.amazonaws.internal.SdkInternalList<String> stackIds;

    /**
     * <p>
     * An array of stack IDs that specify the stacks to be described. If you
     * omit this parameter, <code>DescribeStacks</code> returns a description of
     * every stack.
     * </p>
     * 
     * @return An array of stack IDs that specify the stacks to be described. If
     *         you omit this parameter, <code>DescribeStacks</code> returns a
     *         description of every stack.
     */
    public java.util.List<String> getStackIds() {
        if (stackIds == null) {
            stackIds = new com.amazonaws.internal.SdkInternalList<String>();
        }
        return stackIds;
    }

    /**
     * <p>
     * An array of stack IDs that specify the stacks to be described. If you
     * omit this parameter, <code>DescribeStacks</code> returns a description of
     * every stack.
     * </p>
     * 
     * @param stackIds
     *        An array of stack IDs that specify the stacks to be described. If
     *        you omit this parameter, <code>DescribeStacks</code> returns a
     *        description of every stack.
     */
    public void setStackIds(java.util.Collection<String> stackIds) {
        if (stackIds == null) {
            this.stackIds = null;
            return;
        }

        this.stackIds = new com.amazonaws.internal.SdkInternalList<String>(
                stackIds);
    }

    /**
     * <p>
     * An array of stack IDs that specify the stacks to be described. If you
     * omit this parameter, <code>DescribeStacks</code> returns a description of
     * every stack.
     * </p>
     * <p>
     * <b>NOTE:</b> This method appends the values to the existing list (if
     * any). Use {@link #setStackIds(java.util.Collection)} or
     * {@link #withStackIds(java.util.Collection)} if you want to override the
     * existing values.
     * </p>
     * 
     * @param stackIds
     *        An array of stack IDs that specify the stacks to be described. If
     *        you omit this parameter, <code>DescribeStacks</code> returns a
     *        description of every stack.
     * @return Returns a reference to this object so that method calls can be
     *         chained together.
     */
    public DescribeStacksRequest withStackIds(String... stackIds) {
        if (this.stackIds == null) {
            setStackIds(new com.amazonaws.internal.SdkInternalList<String>(
                    stackIds.length));
        }
        for (String ele : stackIds) {
            this.stackIds.add(ele);
        }
        return this;
    }

    /**
     * <p>
     * An array of stack IDs that specify the stacks to be described. If you
     * omit this parameter, <code>DescribeStacks</code> returns a description of
     * every stack.
     * </p>
     * 
     * @param stackIds
     *        An array of stack IDs that specify the stacks to be described. If
     *        you omit this parameter, <code>DescribeStacks</code> returns a
     *        description of every stack.
     * @return Returns a reference to this object so that method calls can be
     *         chained together.
     */
    public DescribeStacksRequest withStackIds(
            java.util.Collection<String> stackIds) {
        setStackIds(stackIds);
        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 (getStackIds() != null)
            sb.append("StackIds: " + getStackIds());
        sb.append("}");
        return sb.toString();
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;

        if (obj instanceof DescribeStacksRequest == false)
            return false;
        DescribeStacksRequest other = (DescribeStacksRequest) obj;
        if (other.getStackIds() == null ^ this.getStackIds() == null)
            return false;
        if (other.getStackIds() != null
                && other.getStackIds().equals(this.getStackIds()) == false)
            return false;
        return true;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int hashCode = 1;

        hashCode = prime * hashCode
                + ((getStackIds() == null) ? 0 : getStackIds().hashCode());
        return hashCode;
    }

    @Override
    public DescribeStacksRequest clone() {
        return (DescribeStacksRequest) super.clone();
    }
}