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/*
* Copyright 2010-2016 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.applicationautoscaling;
import org.w3c.dom.*;
import java.net.*;
import java.util.*;
import java.util.Map.Entry;
import org.apache.commons.logging.*;
import com.amazonaws.*;
import com.amazonaws.auth.*;
import com.amazonaws.handlers.*;
import com.amazonaws.http.*;
import com.amazonaws.internal.*;
import com.amazonaws.metrics.*;
import com.amazonaws.regions.*;
import com.amazonaws.transform.*;
import com.amazonaws.util.*;
import com.amazonaws.protocol.json.*;
import com.amazonaws.util.AWSRequestMetrics.Field;
import com.amazonaws.annotation.ThreadSafe;
import com.amazonaws.services.applicationautoscaling.model.*;
import com.amazonaws.services.applicationautoscaling.model.transform.*;
/**
* Client for accessing Application Auto Scaling. All service calls made using
* this client are blocking, and will not return until the service call
* completes.
*
*
* Application Auto Scaling is a general purpose Auto Scaling service for
* supported elastic AWS resources. With Application Auto Scaling, you can
* automatically scale your AWS resources, with an experience similar to that of
* Auto Scaling.
*
*
*
* At this time, Application Auto Scaling only supports scaling Amazon ECS
* services.
*
*
*
* For example, you can use Application Auto Scaling to accomplish the following
* tasks:
*
*
* -
*
* Define scaling policies for automatically adjusting your application’s
* resources
*
*
* -
*
* Scale your resources in response to CloudWatch alarms
*
*
* -
*
* View history of your scaling events
*
*
*
*/
@ThreadSafe
public class AWSApplicationAutoScalingClient extends AmazonWebServiceClient
implements AWSApplicationAutoScaling {
/** Provider for AWS credentials. */
private AWSCredentialsProvider awsCredentialsProvider;
private static final Log log = LogFactory
.getLog(AWSApplicationAutoScaling.class);
/** Default signing name for the service. */
private static final String DEFAULT_SIGNING_NAME = "application-autoscaling";
/** The region metadata service name for computing region endpoints. */
private static final String DEFAULT_ENDPOINT_PREFIX = "autoscaling";
/**
* Client configuration factory providing ClientConfigurations tailored to
* this client
*/
protected static final ClientConfigurationFactory configFactory = new ClientConfigurationFactory();
private final SdkJsonProtocolFactory protocolFactory = new SdkJsonProtocolFactory(
new JsonClientMetadata()
.withProtocolVersion("1.1")
.withSupportsCbor(false)
.addErrorMetadata(
new JsonErrorShapeMetadata()
.withErrorCode("ValidationException")
.withModeledClass(
com.amazonaws.services.applicationautoscaling.model.ValidationException.class))
.addErrorMetadata(
new JsonErrorShapeMetadata()
.withErrorCode("InternalServiceException")
.withModeledClass(
com.amazonaws.services.applicationautoscaling.model.InternalServiceException.class))
.addErrorMetadata(
new JsonErrorShapeMetadata()
.withErrorCode("InvalidNextTokenException")
.withModeledClass(
com.amazonaws.services.applicationautoscaling.model.InvalidNextTokenException.class))
.addErrorMetadata(
new JsonErrorShapeMetadata()
.withErrorCode("ObjectNotFoundException")
.withModeledClass(
com.amazonaws.services.applicationautoscaling.model.ObjectNotFoundException.class))
.addErrorMetadata(
new JsonErrorShapeMetadata()
.withErrorCode(
"FailedResourceAccessException")
.withModeledClass(
com.amazonaws.services.applicationautoscaling.model.FailedResourceAccessException.class))
.addErrorMetadata(
new JsonErrorShapeMetadata()
.withErrorCode("LimitExceededException")
.withModeledClass(
com.amazonaws.services.applicationautoscaling.model.LimitExceededException.class))
.addErrorMetadata(
new JsonErrorShapeMetadata()
.withErrorCode("ConcurrentUpdateException")
.withModeledClass(
com.amazonaws.services.applicationautoscaling.model.ConcurrentUpdateException.class)));
/**
* Constructs a new client to invoke service methods on Application Auto
* Scaling. A credentials provider chain will be used that searches for
* credentials in this order:
*
* - Environment Variables - AWS_ACCESS_KEY_ID and AWS_SECRET_KEY
* - Java System Properties - aws.accessKeyId and aws.secretKey
* - Instance profile credentials delivered through the Amazon EC2
* metadata service
*
*
*
* All service calls made using this new client object are blocking, and
* will not return until the service call completes.
*
* @see DefaultAWSCredentialsProviderChain
*/
public AWSApplicationAutoScalingClient() {
this(new DefaultAWSCredentialsProviderChain(), configFactory
.getConfig());
}
/**
* Constructs a new client to invoke service methods on Application Auto
* Scaling. A credentials provider chain will be used that searches for
* credentials in this order:
*
* - Environment Variables - AWS_ACCESS_KEY_ID and AWS_SECRET_KEY
* - Java System Properties - aws.accessKeyId and aws.secretKey
* - Instance profile credentials delivered through the Amazon EC2
* metadata service
*
*
*
* All service calls made using this new client object are blocking, and
* will not return until the service call completes.
*
* @param clientConfiguration
* The client configuration options controlling how this client
* connects to Application Auto Scaling (ex: proxy settings, retry
* counts, etc.).
*
* @see DefaultAWSCredentialsProviderChain
*/
public AWSApplicationAutoScalingClient(
ClientConfiguration clientConfiguration) {
this(new DefaultAWSCredentialsProviderChain(), clientConfiguration);
}
/**
* Constructs a new client to invoke service methods on Application Auto
* Scaling using the specified AWS account credentials.
*
*
* All service calls made using this new client object are blocking, and
* will not return until the service call completes.
*
* @param awsCredentials
* The AWS credentials (access key ID and secret key) to use when
* authenticating with AWS services.
*/
public AWSApplicationAutoScalingClient(AWSCredentials awsCredentials) {
this(awsCredentials, configFactory.getConfig());
}
/**
* Constructs a new client to invoke service methods on Application Auto
* Scaling using the specified AWS account credentials and client
* configuration options.
*
*
* All service calls made using this new client object are blocking, and
* will not return until the service call completes.
*
* @param awsCredentials
* The AWS credentials (access key ID and secret key) to use when
* authenticating with AWS services.
* @param clientConfiguration
* The client configuration options controlling how this client
* connects to Application Auto Scaling (ex: proxy settings, retry
* counts, etc.).
*/
public AWSApplicationAutoScalingClient(AWSCredentials awsCredentials,
ClientConfiguration clientConfiguration) {
super(clientConfiguration);
this.awsCredentialsProvider = new StaticCredentialsProvider(
awsCredentials);
init();
}
/**
* Constructs a new client to invoke service methods on Application Auto
* Scaling using the specified AWS account credentials provider.
*
*
* All service calls made using this new client object are blocking, and
* will not return until the service call completes.
*
* @param awsCredentialsProvider
* The AWS credentials provider which will provide credentials to
* authenticate requests with AWS services.
*/
public AWSApplicationAutoScalingClient(
AWSCredentialsProvider awsCredentialsProvider) {
this(awsCredentialsProvider, configFactory.getConfig());
}
/**
* Constructs a new client to invoke service methods on Application Auto
* Scaling using the specified AWS account credentials provider and client
* configuration options.
*
*
* All service calls made using this new client object are blocking, and
* will not return until the service call completes.
*
* @param awsCredentialsProvider
* The AWS credentials provider which will provide credentials to
* authenticate requests with AWS services.
* @param clientConfiguration
* The client configuration options controlling how this client
* connects to Application Auto Scaling (ex: proxy settings, retry
* counts, etc.).
*/
public AWSApplicationAutoScalingClient(
AWSCredentialsProvider awsCredentialsProvider,
ClientConfiguration clientConfiguration) {
this(awsCredentialsProvider, clientConfiguration, null);
}
/**
* Constructs a new client to invoke service methods on Application Auto
* Scaling using the specified AWS account credentials provider, client
* configuration options, and request metric collector.
*
*
* All service calls made using this new client object are blocking, and
* will not return until the service call completes.
*
* @param awsCredentialsProvider
* The AWS credentials provider which will provide credentials to
* authenticate requests with AWS services.
* @param clientConfiguration
* The client configuration options controlling how this client
* connects to Application Auto Scaling (ex: proxy settings, retry
* counts, etc.).
* @param requestMetricCollector
* optional request metric collector
*/
public AWSApplicationAutoScalingClient(
AWSCredentialsProvider awsCredentialsProvider,
ClientConfiguration clientConfiguration,
RequestMetricCollector requestMetricCollector) {
super(clientConfiguration, requestMetricCollector);
this.awsCredentialsProvider = awsCredentialsProvider;
init();
}
private void init() {
setServiceNameIntern(DEFAULT_SIGNING_NAME);
setEndpointPrefix(DEFAULT_ENDPOINT_PREFIX);
// calling this.setEndPoint(...) will also modify the signer accordingly
setEndpoint("https://autoscaling.us-east-1.amazonaws.com");
HandlerChainFactory chainFactory = new HandlerChainFactory();
requestHandler2s
.addAll(chainFactory
.newRequestHandlerChain("/com/amazonaws/services/applicationautoscaling/request.handlers"));
requestHandler2s
.addAll(chainFactory
.newRequestHandler2Chain("/com/amazonaws/services/applicationautoscaling/request.handler2s"));
}
/**
*
* Deletes an Application Auto Scaling scaling policy that was previously
* created. If you are no longer using a scaling policy, you can delete it
* with this operation.
*
*
* Deleting a policy deletes the underlying alarm action, but does not
* delete the CloudWatch alarm, even if it no longer has an associated
* action.
*
*
* To create a new scaling policy or update an existing one, see
* PutScalingPolicy.
*
*
* @param deleteScalingPolicyRequest
* @return Result of the DeleteScalingPolicy operation returned by the
* service.
* @throws ValidationException
* An exception was thrown for a validation issue. Review the
* available parameters for the API request.
* @throws ObjectNotFoundException
* The specified object could not be found. For any Put
* or Register API operation, which depends on the
* existence of a scalable target, this exception is thrown if the
* scalable target with the specified service namespace, resource
* ID, and scalable dimension does not exist. For any
* Delete or Deregister API operation,
* this exception is thrown if the resource that is to be deleted or
* deregistered cannot be found.
* @throws ConcurrentUpdateException
* Concurrent updates caused an exception, for example, if you
* request an update to an Application Auto Scaling resource that
* already has a pending update.
* @throws InternalServiceException
* The service encountered an internal error.
* @sample AWSApplicationAutoScaling.DeleteScalingPolicy
*/
@Override
public DeleteScalingPolicyResult deleteScalingPolicy(
DeleteScalingPolicyRequest deleteScalingPolicyRequest) {
ExecutionContext executionContext = createExecutionContext(deleteScalingPolicyRequest);
AWSRequestMetrics awsRequestMetrics = executionContext
.getAwsRequestMetrics();
awsRequestMetrics.startEvent(Field.ClientExecuteTime);
Request request = null;
Response response = null;
try {
awsRequestMetrics.startEvent(Field.RequestMarshallTime);
try {
request = new DeleteScalingPolicyRequestMarshaller(
protocolFactory).marshall(super
.beforeMarshalling(deleteScalingPolicyRequest));
// Binds the request metrics to the current request.
request.setAWSRequestMetrics(awsRequestMetrics);
} finally {
awsRequestMetrics.endEvent(Field.RequestMarshallTime);
}
HttpResponseHandler> responseHandler = protocolFactory
.createResponseHandler(new JsonOperationMetadata()
.withPayloadJson(true)
.withHasStreamingSuccessResponse(false),
new DeleteScalingPolicyResultJsonUnmarshaller());
response = invoke(request, responseHandler, executionContext);
return response.getAwsResponse();
} finally {
endClientExecution(awsRequestMetrics, request, response);
}
}
/**
*
* Deregisters a scalable target that was previously registered. If you are
* no longer using a scalable target, you can delete it with this operation.
* When you deregister a scalable target, all of the scaling policies that
* are associated with that scalable target are deleted.
*
*
* To create a new scalable target or update an existing one, see
* RegisterScalableTarget.
*
*
* @param deregisterScalableTargetRequest
* @return Result of the DeregisterScalableTarget operation returned by the
* service.
* @throws ValidationException
* An exception was thrown for a validation issue. Review the
* available parameters for the API request.
* @throws ObjectNotFoundException
* The specified object could not be found. For any Put
* or Register API operation, which depends on the
* existence of a scalable target, this exception is thrown if the
* scalable target with the specified service namespace, resource
* ID, and scalable dimension does not exist. For any
* Delete or Deregister API operation,
* this exception is thrown if the resource that is to be deleted or
* deregistered cannot be found.
* @throws ConcurrentUpdateException
* Concurrent updates caused an exception, for example, if you
* request an update to an Application Auto Scaling resource that
* already has a pending update.
* @throws InternalServiceException
* The service encountered an internal error.
* @sample AWSApplicationAutoScaling.DeregisterScalableTarget
*/
@Override
public DeregisterScalableTargetResult deregisterScalableTarget(
DeregisterScalableTargetRequest deregisterScalableTargetRequest) {
ExecutionContext executionContext = createExecutionContext(deregisterScalableTargetRequest);
AWSRequestMetrics awsRequestMetrics = executionContext
.getAwsRequestMetrics();
awsRequestMetrics.startEvent(Field.ClientExecuteTime);
Request request = null;
Response response = null;
try {
awsRequestMetrics.startEvent(Field.RequestMarshallTime);
try {
request = new DeregisterScalableTargetRequestMarshaller(
protocolFactory).marshall(super
.beforeMarshalling(deregisterScalableTargetRequest));
// Binds the request metrics to the current request.
request.setAWSRequestMetrics(awsRequestMetrics);
} finally {
awsRequestMetrics.endEvent(Field.RequestMarshallTime);
}
HttpResponseHandler> responseHandler = protocolFactory
.createResponseHandler(
new JsonOperationMetadata().withPayloadJson(true)
.withHasStreamingSuccessResponse(false),
new DeregisterScalableTargetResultJsonUnmarshaller());
response = invoke(request, responseHandler, executionContext);
return response.getAwsResponse();
} finally {
endClientExecution(awsRequestMetrics, request, response);
}
}
/**
*
* Provides descriptive information for scalable targets with a specified
* service namespace.
*
*
* You can filter the results in a service namespace with the
* ResourceIds and ScalableDimension parameters.
*
*
* To create a new scalable target or update an existing one, see
* RegisterScalableTarget. If you are no longer using a scalable
* target, you can deregister it with DeregisterScalableTarget.
*
*
* @param describeScalableTargetsRequest
* @return Result of the DescribeScalableTargets operation returned by the
* service.
* @throws ValidationException
* An exception was thrown for a validation issue. Review the
* available parameters for the API request.
* @throws InvalidNextTokenException
* The next token supplied was invalid.
* @throws ConcurrentUpdateException
* Concurrent updates caused an exception, for example, if you
* request an update to an Application Auto Scaling resource that
* already has a pending update.
* @throws InternalServiceException
* The service encountered an internal error.
* @sample AWSApplicationAutoScaling.DescribeScalableTargets
*/
@Override
public DescribeScalableTargetsResult describeScalableTargets(
DescribeScalableTargetsRequest describeScalableTargetsRequest) {
ExecutionContext executionContext = createExecutionContext(describeScalableTargetsRequest);
AWSRequestMetrics awsRequestMetrics = executionContext
.getAwsRequestMetrics();
awsRequestMetrics.startEvent(Field.ClientExecuteTime);
Request request = null;
Response response = null;
try {
awsRequestMetrics.startEvent(Field.RequestMarshallTime);
try {
request = new DescribeScalableTargetsRequestMarshaller(
protocolFactory).marshall(super
.beforeMarshalling(describeScalableTargetsRequest));
// Binds the request metrics to the current request.
request.setAWSRequestMetrics(awsRequestMetrics);
} finally {
awsRequestMetrics.endEvent(Field.RequestMarshallTime);
}
HttpResponseHandler> responseHandler = protocolFactory
.createResponseHandler(new JsonOperationMetadata()
.withPayloadJson(true)
.withHasStreamingSuccessResponse(false),
new DescribeScalableTargetsResultJsonUnmarshaller());
response = invoke(request, responseHandler, executionContext);
return response.getAwsResponse();
} finally {
endClientExecution(awsRequestMetrics, request, response);
}
}
/**
*
* Provides descriptive information for scaling activities with a specified
* service namespace.
*
*
* You can filter the results in a service namespace with the
* ResourceId and ScalableDimension parameters.
*
*
* Scaling activities are triggered by CloudWatch alarms that are associated
* with scaling policies. To view the existing scaling policies for a
* service namespace, see DescribeScalingPolicies. To create a new
* scaling policy or update an existing one, see PutScalingPolicy.
*
*
* @param describeScalingActivitiesRequest
* @return Result of the DescribeScalingActivities operation returned by the
* service.
* @throws ValidationException
* An exception was thrown for a validation issue. Review the
* available parameters for the API request.
* @throws InvalidNextTokenException
* The next token supplied was invalid.
* @throws ConcurrentUpdateException
* Concurrent updates caused an exception, for example, if you
* request an update to an Application Auto Scaling resource that
* already has a pending update.
* @throws InternalServiceException
* The service encountered an internal error.
* @sample AWSApplicationAutoScaling.DescribeScalingActivities
*/
@Override
public DescribeScalingActivitiesResult describeScalingActivities(
DescribeScalingActivitiesRequest describeScalingActivitiesRequest) {
ExecutionContext executionContext = createExecutionContext(describeScalingActivitiesRequest);
AWSRequestMetrics awsRequestMetrics = executionContext
.getAwsRequestMetrics();
awsRequestMetrics.startEvent(Field.ClientExecuteTime);
Request request = null;
Response response = null;
try {
awsRequestMetrics.startEvent(Field.RequestMarshallTime);
try {
request = new DescribeScalingActivitiesRequestMarshaller(
protocolFactory).marshall(super
.beforeMarshalling(describeScalingActivitiesRequest));
// Binds the request metrics to the current request.
request.setAWSRequestMetrics(awsRequestMetrics);
} finally {
awsRequestMetrics.endEvent(Field.RequestMarshallTime);
}
HttpResponseHandler> responseHandler = protocolFactory
.createResponseHandler(
new JsonOperationMetadata().withPayloadJson(true)
.withHasStreamingSuccessResponse(false),
new DescribeScalingActivitiesResultJsonUnmarshaller());
response = invoke(request, responseHandler, executionContext);
return response.getAwsResponse();
} finally {
endClientExecution(awsRequestMetrics, request, response);
}
}
/**
*
* Provides descriptive information for scaling policies with a specified
* service namespace.
*
*
* You can filter the results in a service namespace with the
* ResourceId, ScalableDimension, and
* PolicyNames parameters.
*
*
* To create a new scaling policy or update an existing one, see
* PutScalingPolicy. If you are no longer using a scaling policy, you
* can delete it with DeleteScalingPolicy.
*
*
* @param describeScalingPoliciesRequest
* @return Result of the DescribeScalingPolicies operation returned by the
* service.
* @throws ValidationException
* An exception was thrown for a validation issue. Review the
* available parameters for the API request.
* @throws FailedResourceAccessException
* Failed access to resources caused an exception. This exception
* currently only applies to DescribeScalingPolicies. It is
* thrown when Application Auto Scaling is unable to retrieve the
* alarms associated with a scaling policy due to a client error,
* for example, if the role ARN specified for a scalable target does
* not have the proper permissions to call the CloudWatch DescribeAlarms API operation on behalf of your account.
* @throws InvalidNextTokenException
* The next token supplied was invalid.
* @throws ConcurrentUpdateException
* Concurrent updates caused an exception, for example, if you
* request an update to an Application Auto Scaling resource that
* already has a pending update.
* @throws InternalServiceException
* The service encountered an internal error.
* @sample AWSApplicationAutoScaling.DescribeScalingPolicies
*/
@Override
public DescribeScalingPoliciesResult describeScalingPolicies(
DescribeScalingPoliciesRequest describeScalingPoliciesRequest) {
ExecutionContext executionContext = createExecutionContext(describeScalingPoliciesRequest);
AWSRequestMetrics awsRequestMetrics = executionContext
.getAwsRequestMetrics();
awsRequestMetrics.startEvent(Field.ClientExecuteTime);
Request request = null;
Response response = null;
try {
awsRequestMetrics.startEvent(Field.RequestMarshallTime);
try {
request = new DescribeScalingPoliciesRequestMarshaller(
protocolFactory).marshall(super
.beforeMarshalling(describeScalingPoliciesRequest));
// Binds the request metrics to the current request.
request.setAWSRequestMetrics(awsRequestMetrics);
} finally {
awsRequestMetrics.endEvent(Field.RequestMarshallTime);
}
HttpResponseHandler> responseHandler = protocolFactory
.createResponseHandler(new JsonOperationMetadata()
.withPayloadJson(true)
.withHasStreamingSuccessResponse(false),
new DescribeScalingPoliciesResultJsonUnmarshaller());
response = invoke(request, responseHandler, executionContext);
return response.getAwsResponse();
} finally {
endClientExecution(awsRequestMetrics, request, response);
}
}
/**
*
* Creates or updates a policy for an existing Application Auto Scaling
* scalable target. Each scalable target is identified by service namespace,
* a resource ID, and a scalable dimension, and a scaling policy applies to
* a scalable target that is identified by those three attributes. You
* cannot create a scaling policy without first registering a scalable
* target with RegisterScalableTarget.
*
*
* To update an existing policy, use the existing policy name and set the
* parameters you want to change. Any existing parameter not changed in an
* update to an existing policy is not changed in this update request.
*
*
* You can view the existing scaling policies for a service namespace with
* DescribeScalingPolicies. If you are no longer using a scaling
* policy, you can delete it with DeleteScalingPolicy.
*
*
* @param putScalingPolicyRequest
* @return Result of the PutScalingPolicy operation returned by the service.
* @throws ValidationException
* An exception was thrown for a validation issue. Review the
* available parameters for the API request.
* @throws LimitExceededException
* Your account exceeded a limit. This exception is thrown when a
* per-account resource limit is exceeded. Application Auto Scaling
* has a limit of 40 scalable targets per account for Amazon ECS
* services, 50 scaling policies per scalable target, and 20 step
* adjustments per step scaling policy.
* @throws ObjectNotFoundException
* The specified object could not be found. For any Put
* or Register API operation, which depends on the
* existence of a scalable target, this exception is thrown if the
* scalable target with the specified service namespace, resource
* ID, and scalable dimension does not exist. For any
* Delete or Deregister API operation,
* this exception is thrown if the resource that is to be deleted or
* deregistered cannot be found.
* @throws ConcurrentUpdateException
* Concurrent updates caused an exception, for example, if you
* request an update to an Application Auto Scaling resource that
* already has a pending update.
* @throws InternalServiceException
* The service encountered an internal error.
* @sample AWSApplicationAutoScaling.PutScalingPolicy
*/
@Override
public PutScalingPolicyResult putScalingPolicy(
PutScalingPolicyRequest putScalingPolicyRequest) {
ExecutionContext executionContext = createExecutionContext(putScalingPolicyRequest);
AWSRequestMetrics awsRequestMetrics = executionContext
.getAwsRequestMetrics();
awsRequestMetrics.startEvent(Field.ClientExecuteTime);
Request request = null;
Response response = null;
try {
awsRequestMetrics.startEvent(Field.RequestMarshallTime);
try {
request = new PutScalingPolicyRequestMarshaller(protocolFactory)
.marshall(super
.beforeMarshalling(putScalingPolicyRequest));
// Binds the request metrics to the current request.
request.setAWSRequestMetrics(awsRequestMetrics);
} finally {
awsRequestMetrics.endEvent(Field.RequestMarshallTime);
}
HttpResponseHandler> responseHandler = protocolFactory
.createResponseHandler(new JsonOperationMetadata()
.withPayloadJson(true)
.withHasStreamingSuccessResponse(false),
new PutScalingPolicyResultJsonUnmarshaller());
response = invoke(request, responseHandler, executionContext);
return response.getAwsResponse();
} finally {
endClientExecution(awsRequestMetrics, request, response);
}
}
/**
*
* Registers or updates a scalable target. A scalable target is a resource
* that can be scaled up or down with Application Auto Scaling. After you
* have registered a scalable target, you can use this command to update the
* minimum and maximum values for your scalable dimension.
*
*
*
* At this time, Application Auto Scaling only supports scaling Amazon ECS
* services.
*
*
*
* After you register a scalable target with Application Auto Scaling, you
* can create and apply scaling policies to it with PutScalingPolicy.
* You can view the existing scaling policies for a service namespace with
* DescribeScalableTargets. If you are no longer using a scalable
* target, you can deregister it with DeregisterScalableTarget.
*
*
* @param registerScalableTargetRequest
* @return Result of the RegisterScalableTarget operation returned by the
* service.
* @throws ValidationException
* An exception was thrown for a validation issue. Review the
* available parameters for the API request.
* @throws LimitExceededException
* Your account exceeded a limit. This exception is thrown when a
* per-account resource limit is exceeded. Application Auto Scaling
* has a limit of 40 scalable targets per account for Amazon ECS
* services, 50 scaling policies per scalable target, and 20 step
* adjustments per step scaling policy.
* @throws ConcurrentUpdateException
* Concurrent updates caused an exception, for example, if you
* request an update to an Application Auto Scaling resource that
* already has a pending update.
* @throws InternalServiceException
* The service encountered an internal error.
* @sample AWSApplicationAutoScaling.RegisterScalableTarget
*/
@Override
public RegisterScalableTargetResult registerScalableTarget(
RegisterScalableTargetRequest registerScalableTargetRequest) {
ExecutionContext executionContext = createExecutionContext(registerScalableTargetRequest);
AWSRequestMetrics awsRequestMetrics = executionContext
.getAwsRequestMetrics();
awsRequestMetrics.startEvent(Field.ClientExecuteTime);
Request request = null;
Response response = null;
try {
awsRequestMetrics.startEvent(Field.RequestMarshallTime);
try {
request = new RegisterScalableTargetRequestMarshaller(
protocolFactory).marshall(super
.beforeMarshalling(registerScalableTargetRequest));
// Binds the request metrics to the current request.
request.setAWSRequestMetrics(awsRequestMetrics);
} finally {
awsRequestMetrics.endEvent(Field.RequestMarshallTime);
}
HttpResponseHandler> responseHandler = protocolFactory
.createResponseHandler(new JsonOperationMetadata()
.withPayloadJson(true)
.withHasStreamingSuccessResponse(false),
new RegisterScalableTargetResultJsonUnmarshaller());
response = invoke(request, responseHandler, executionContext);
return response.getAwsResponse();
} finally {
endClientExecution(awsRequestMetrics, request, response);
}
}
/**
* Returns additional metadata for a previously executed successful,
* request, typically used for debugging issues where a service isn't acting
* as expected. This data isn't considered part of the result data returned
* by an operation, so it's available through this separate, diagnostic
* interface.
*
* Response metadata is only cached for a limited period of time, so if you
* need to access this extra diagnostic information for an executed request,
* you should use this method to retrieve it as soon as possible after
* executing the request.
*
* @param request
* The originally executed request
*
* @return The response metadata for the specified request, or null if none
* is available.
*/
public ResponseMetadata getCachedResponseMetadata(
AmazonWebServiceRequest request) {
return client.getResponseMetadataForRequest(request);
}
/**
* Normal invoke with authentication. Credentials are required and may be
* overriden at the request level.
**/
private Response invoke(
Request request,
HttpResponseHandler> responseHandler,
ExecutionContext executionContext) {
executionContext.setCredentialsProvider(CredentialUtils
.getCredentialsProvider(request.getOriginalRequest(),
awsCredentialsProvider));
return doInvoke(request, responseHandler, executionContext);
}
/**
* Invoke with no authentication. Credentials are not required and any
* credentials set on the client or request will be ignored for this
* operation.
**/
private Response anonymousInvoke(
Request request,
HttpResponseHandler> responseHandler,
ExecutionContext executionContext) {
return doInvoke(request, responseHandler, executionContext);
}
/**
* Invoke the request using the http client. Assumes credentials (or lack
* thereof) have been configured in the ExecutionContext beforehand.
**/
private Response doInvoke(
Request request,
HttpResponseHandler> responseHandler,
ExecutionContext executionContext) {
request.setEndpoint(endpoint);
request.setTimeOffset(timeOffset);
HttpResponseHandler errorResponseHandler = protocolFactory
.createErrorResponseHandler(new JsonErrorResponseMetadata());
return client.execute(request, responseHandler, errorResponseHandler,
executionContext);
}
}