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The AWS Java SDK for AWS IAM module holds the client classes that are used for communicating with AWS Identity and Access Management Service

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/*
 * Copyright 2011-2016 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.identitymanagement.waiters;

import com.amazonaws.annotation.SdkInternalApi;
import com.amazonaws.services.identitymanagement.AmazonIdentityManagement;
import com.amazonaws.services.identitymanagement.model.*;
import com.amazonaws.waiters.*;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class AmazonIdentityManagementWaiters {

    /**
     * Represents the service client
     */
    private final AmazonIdentityManagement client;

    private final ExecutorService executorService = Executors.newFixedThreadPool(50);

    /**
     * Constructs a new AmazonIdentityManagementWaiters with the given client
     * 
     * @param client
     *        Service client
     */
    @SdkInternalApi
    public AmazonIdentityManagementWaiters(AmazonIdentityManagement client) {
        this.client = client;
    }

    /**
     * Builds a InstanceProfileExists waiter by using custom parameters waiterParameters and other parameters defined in
     * the waiters specification, and then polls until it determines whether the resource entered the desired state or
     * not, where polling criteria is bound by either default polling strategy or custom polling strategy.
     */
    public Waiter instanceProfileExists() {

        return new WaiterBuilder().withSdkFunction(new GetInstanceProfileFunction(client))
                .withAcceptors(new HttpSuccessStatusAcceptor(WaiterState.SUCCESS), new HttpFailureStatusAcceptor(404, WaiterState.RETRY))
                .withDefaultPollingStrategy(new PollingStrategy(new MaxAttemptsRetryStrategy(40), new FixedDelayStrategy(1)))
                .withExecutorService(executorService).build();
    }

    /**
     * Builds a UserExists waiter by using custom parameters waiterParameters and other parameters defined in the
     * waiters specification, and then polls until it determines whether the resource entered the desired state or not,
     * where polling criteria is bound by either default polling strategy or custom polling strategy.
     */
    public Waiter userExists() {

        return new WaiterBuilder().withSdkFunction(new GetUserFunction(client))
                .withAcceptors(new HttpSuccessStatusAcceptor(WaiterState.SUCCESS), new UserExists.IsNoSuchEntityMatcher())
                .withDefaultPollingStrategy(new PollingStrategy(new MaxAttemptsRetryStrategy(20), new FixedDelayStrategy(1)))
                .withExecutorService(executorService).build();
    }

}