com.amazonaws.services.simpledb.AmazonSimpleDBClient Maven / Gradle / Ivy
/*
* Copyright 2010-2011 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.simpledb;
import org.w3c.dom.Node;
import java.util.ArrayList;
import java.util.List;
import java.util.Map.Entry;
import java.security.SignatureException;
import com.amazonaws.*;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.AWS3Signer;
import com.amazonaws.auth.QueryStringSigner;
import com.amazonaws.handlers.HandlerChainFactory;
import com.amazonaws.handlers.RequestHandler;
import com.amazonaws.http.StaxResponseHandler;
import com.amazonaws.http.DefaultErrorResponseHandler;
import com.amazonaws.http.HttpClient;
import com.amazonaws.http.HttpMethodName;
import com.amazonaws.http.HttpRequest;
import com.amazonaws.transform.Unmarshaller;
import com.amazonaws.transform.StaxUnmarshallerContext;
import com.amazonaws.transform.LegacyErrorUnmarshaller;
import com.amazonaws.services.simpledb.model.*;
import com.amazonaws.services.simpledb.model.transform.*;
/**
* Client for accessing AmazonSimpleDB. All service calls made
* using this client are blocking, and will not return until the service call
* completes.
*
* Amazon SimpleDB
* Amazon SimpleDB is a web service providing the core database
* functions of data indexing and querying in the cloud. By offloading
* the time and effort associated with building and operating a web-scale
* database, SimpleDB provides developers the freedom to focus on
* application development.
*
*
* A traditional, clustered relational database requires a sizable
* upfront capital outlay, is complex to design, and often requires
* extensive and repetitive database administration. Amazon SimpleDB is
* dramatically simpler, requiring no schema, automatically indexing your
* data and providing a simple API for storage and access. This approach
* eliminates the administrative burden of data modeling, index
* maintenance, and performance tuning. Developers gain access to this
* functionality within Amazon's proven computing environment, are able
* to scale instantly, and pay only for what they use.
*
*
* Visit
* http://aws.amazon.com/simpledb/ for more information.
*
*/
public class AmazonSimpleDBClient extends AmazonWebServiceClient implements AmazonSimpleDB {
/**
* The AWS credentials (access key ID and secret key) to use when
* authenticating with AWS services.
*/
private AWSCredentials awsCredentials;
/**
* List of exception unmarshallers for all AmazonSimpleDB exceptions.
*/
protected final List> exceptionUnmarshallers;
/** Low level client for sending requests to AWS services. */
protected final HttpClient client;
/** Optional request handlers for additional request processing. */
private List requestHandlers = new ArrayList();
/** AWS signer for authenticating requests. */
private QueryStringSigner signer;
/**
* Constructs a new client to invoke service methods on
* AmazonSimpleDB 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 AmazonSimpleDBClient(AWSCredentials awsCredentials) {
this(awsCredentials, new ClientConfiguration());
}
/**
* Constructs a new client to invoke service methods on
* AmazonSimpleDB 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 AmazonSimpleDB
* (ex: proxy settings, retry counts, etc.).
*/
public AmazonSimpleDBClient(AWSCredentials awsCredentials, ClientConfiguration clientConfiguration) {
super(clientConfiguration);
this.awsCredentials = awsCredentials;
exceptionUnmarshallers = new ArrayList>();
exceptionUnmarshallers.add(new InvalidParameterValueExceptionUnmarshaller());
exceptionUnmarshallers.add(new NumberDomainBytesExceededExceptionUnmarshaller());
exceptionUnmarshallers.add(new NoSuchDomainExceptionUnmarshaller());
exceptionUnmarshallers.add(new NumberDomainsExceededExceptionUnmarshaller());
exceptionUnmarshallers.add(new NumberSubmittedItemsExceededExceptionUnmarshaller());
exceptionUnmarshallers.add(new RequestTimeoutExceptionUnmarshaller());
exceptionUnmarshallers.add(new InvalidQueryExpressionExceptionUnmarshaller());
exceptionUnmarshallers.add(new NumberSubmittedAttributesExceededExceptionUnmarshaller());
exceptionUnmarshallers.add(new DuplicateItemNameExceptionUnmarshaller());
exceptionUnmarshallers.add(new NumberDomainAttributesExceededExceptionUnmarshaller());
exceptionUnmarshallers.add(new InvalidNumberPredicatesExceptionUnmarshaller());
exceptionUnmarshallers.add(new TooManyRequestedAttributesExceptionUnmarshaller());
exceptionUnmarshallers.add(new InvalidNextTokenExceptionUnmarshaller());
exceptionUnmarshallers.add(new NumberItemAttributesExceededExceptionUnmarshaller());
exceptionUnmarshallers.add(new AttributeDoesNotExistExceptionUnmarshaller());
exceptionUnmarshallers.add(new MissingParameterExceptionUnmarshaller());
exceptionUnmarshallers.add(new InvalidNumberValueTestsExceptionUnmarshaller());
exceptionUnmarshallers.add(new LegacyErrorUnmarshaller());
setEndpoint("sdb.amazonaws.com");
signer = new QueryStringSigner(awsCredentials);
requestHandlers = new HandlerChainFactory().newRequestHandlerChain(
"/com/amazonaws/services/simpledb/request.handlers");
client = new HttpClient(clientConfiguration);
}
/**
*
* The Select operation returns a set of attributes for
* ItemNames that match the select expression.
* Select is similar to the standard SQL SELECT statement.
*
*
* The total size of the response cannot exceed 1 MB in total size.
* Amazon SimpleDB automatically adjusts the number of items returned per
* page to enforce this limit. For example, if the client asks to
* retrieve 2500 items, but each individual item is 10 kB in size, the
* system returns 100 items and an appropriate NextToken so
* the client can access the next page of results.
*
*
* For information on how to construct select expressions, see Using
* Select to Create Amazon SimpleDB Queries in the Developer Guide.
*
*
* @param selectRequest Container for the necessary parameters to execute
* the Select service method on AmazonSimpleDB.
*
* @return The response from the Select service method, as returned by
* AmazonSimpleDB.
*
* @throws InvalidParameterValueException
* @throws InvalidQueryExpressionException
* @throws RequestTimeoutException
* @throws InvalidNumberPredicatesException
* @throws NoSuchDomainException
* @throws InvalidNextTokenException
* @throws TooManyRequestedAttributesException
* @throws MissingParameterException
* @throws InvalidNumberValueTestsException
*
* @throws AmazonClientException
* If any internal errors are encountered inside the client while
* attempting to make the request or handle the response. For example
* if a network connection is not available.
* @throws AmazonServiceException
* If an error response is returned by AmazonSimpleDB indicating
* either a problem with the data in the request, or a server side issue.
*/
public SelectResult select(SelectRequest selectRequest)
throws AmazonServiceException, AmazonClientException {
Request request = new SelectRequestMarshaller().marshall(selectRequest);
return invoke(request, new SelectResultStaxUnmarshaller());
}
/**
*
* The PutAttributes operation creates or replaces attributes in an
* item. The client may specify new attributes using a combination of the
* Attribute.X.Name and Attribute.X.Value
* parameters. The client specifies the first attribute by the parameters
* Attribute.0.Name and Attribute.0.Value ,
* the second attribute by the parameters Attribute.1.Name
* and Attribute.1.Value , and so on.
*
*
* Attributes are uniquely identified in an item by their name/value
* combination. For example, a single item can have the attributes
* { "first_name", "first_value" } and { "first_name",
* second_value" } . However, it cannot have two attribute
* instances where both the Attribute.X.Name and
* Attribute.X.Value are the same.
*
*
* Optionally, the requestor can supply the Replace
* parameter for each individual attribute. Setting this value to
* true causes the new attribute value to replace the
* existing attribute value(s). For example, if an item has the
* attributes { 'a', '1' } ,
*
* { 'b', '2'} and { 'b', '3'
* } and the requestor calls PutAttributes using the
* attributes { 'b', '4' } with the Replace
* parameter set to true, the final attributes of the item are changed to
* { 'a', '1' } and { 'b', '4' } , which
* replaces the previous values of the 'b' attribute with the new value.
*
*
* NOTE: Using PutAttributes to replace attribute values that do
* not exist will not result in an error response.
*
*
* You cannot specify an empty string as an attribute name.
*
*
* Because Amazon SimpleDB makes multiple copies of client data and uses
* an eventual consistency update model, an immediate GetAttributes or
* Select operation (read) immediately after a DeleteAttributes operation
* (write) might not return the updated data.
*
*
* The following limitations are enforced for this operation:
*
* - 256 total attribute name-value pairs per item
* - One billion attributes per domain
* - 10 GB of total user data storage per domain
*
*
*
*
*
* @param putAttributesRequest Container for the necessary parameters to
* execute the PutAttributes service method on AmazonSimpleDB.
*
* @throws InvalidParameterValueException
* @throws NumberDomainBytesExceededException
* @throws NumberDomainAttributesExceededException
* @throws NoSuchDomainException
* @throws NumberItemAttributesExceededException
* @throws AttributeDoesNotExistException
* @throws MissingParameterException
*
* @throws AmazonClientException
* If any internal errors are encountered inside the client while
* attempting to make the request or handle the response. For example
* if a network connection is not available.
* @throws AmazonServiceException
* If an error response is returned by AmazonSimpleDB indicating
* either a problem with the data in the request, or a server side issue.
*/
public void putAttributes(PutAttributesRequest putAttributesRequest)
throws AmazonServiceException, AmazonClientException {
Request request = new PutAttributesRequestMarshaller().marshall(putAttributesRequest);
invoke(request, null);
}
/**
*
* Performs multiple DeleteAttributes operations in a single call, which
* reduces round trips and latencies. This enables Amazon SimpleDB to
* optimize requests, which generally yields better throughput.
*
*
* NOTE: If you specify BatchDeleteAttributes without attributes
* or values, all the attributes for the item are deleted.
* BatchDeleteAttributes is an idempotent operation; running it multiple
* times on the same item or attribute doesn't result in an error. The
* BatchDeleteAttributes operation succeeds or fails in its entirety.
* There are no partial deletes. You can execute multiple
* BatchDeleteAttributes operations and other operations in parallel.
* However, large numbers of concurrent BatchDeleteAttributes calls can
* result in Service Unavailable (503) responses. This operation is
* vulnerable to exceeding the maximum URL size when making a REST
* request using the HTTP GET method. This operation does not support
* conditions using Expected.X.Name, Expected.X.Value, or
* Expected.X.Exists.
*
*
* The following limitations are enforced for this operation:
*
* - 1 MB request size
* - 25 item limit per BatchDeleteAttributes operation
*
*
*
*
*
* @param batchDeleteAttributesRequest Container for the necessary
* parameters to execute the BatchDeleteAttributes service method on
* AmazonSimpleDB.
*
*
* @throws AmazonClientException
* If any internal errors are encountered inside the client while
* attempting to make the request or handle the response. For example
* if a network connection is not available.
* @throws AmazonServiceException
* If an error response is returned by AmazonSimpleDB indicating
* either a problem with the data in the request, or a server side issue.
*/
public void batchDeleteAttributes(BatchDeleteAttributesRequest batchDeleteAttributesRequest)
throws AmazonServiceException, AmazonClientException {
Request request = new BatchDeleteAttributesRequestMarshaller().marshall(batchDeleteAttributesRequest);
invoke(request, null);
}
/**
*
* The DeleteDomain operation deletes a domain. Any items
* (and their attributes) in the domain are deleted as well. The
* DeleteDomain operation might take 10 or more seconds to
* complete.
*
*
* NOTE: Running DeleteDomain on a domain that does not exist or
* running the function multiple times using the same domain name will
* not result in an error response.
*
*
* @param deleteDomainRequest Container for the necessary parameters to
* execute the DeleteDomain service method on AmazonSimpleDB.
*
* @throws MissingParameterException
*
* @throws AmazonClientException
* If any internal errors are encountered inside the client while
* attempting to make the request or handle the response. For example
* if a network connection is not available.
* @throws AmazonServiceException
* If an error response is returned by AmazonSimpleDB indicating
* either a problem with the data in the request, or a server side issue.
*/
public void deleteDomain(DeleteDomainRequest deleteDomainRequest)
throws AmazonServiceException, AmazonClientException {
Request request = new DeleteDomainRequestMarshaller().marshall(deleteDomainRequest);
invoke(request, null);
}
/**
*
* The CreateDomain operation creates a new domain. The
* domain name should be unique among the domains associated with the
* Access Key ID provided in the request. The CreateDomain
* operation may take 10 or more seconds to complete.
*
*
* NOTE: CreateDomain is an idempotent operation; running it
* multiple times using the same domain name will not result in an error
* response.
*
*
* The client can create up to 100 domains per account.
*
*
* If the client requires additional domains, go to
* http://aws.amazon.com/contact-us/simpledb-limit-request/ .
*
*
* @param createDomainRequest Container for the necessary parameters to
* execute the CreateDomain service method on AmazonSimpleDB.
*
* @throws InvalidParameterValueException
* @throws NumberDomainsExceededException
* @throws MissingParameterException
*
* @throws AmazonClientException
* If any internal errors are encountered inside the client while
* attempting to make the request or handle the response. For example
* if a network connection is not available.
* @throws AmazonServiceException
* If an error response is returned by AmazonSimpleDB indicating
* either a problem with the data in the request, or a server side issue.
*/
public void createDomain(CreateDomainRequest createDomainRequest)
throws AmazonServiceException, AmazonClientException {
Request request = new CreateDomainRequestMarshaller().marshall(createDomainRequest);
invoke(request, null);
}
/**
*
* Deletes one or more attributes associated with an item. If all
* attributes of the item are deleted, the item is deleted.
*
*
* NOTE: If DeleteAttributes is called without being passed any
* attributes or values specified, all the attributes for the item are
* deleted.
*
*
* DeleteAttributes is an idempotent operation; running it
* multiple times on the same item or attribute does not result in an
* error response.
*
*
* Because Amazon SimpleDB makes multiple copies of item data and uses
* an eventual consistency update model, performing a GetAttributes or
* Select operation (read) immediately after a
* DeleteAttributes or PutAttributes operation (write) might
* not return updated item data.
*
*
* @param deleteAttributesRequest Container for the necessary parameters
* to execute the DeleteAttributes service method on AmazonSimpleDB.
*
* @throws InvalidParameterValueException
* @throws NoSuchDomainException
* @throws AttributeDoesNotExistException
* @throws MissingParameterException
*
* @throws AmazonClientException
* If any internal errors are encountered inside the client while
* attempting to make the request or handle the response. For example
* if a network connection is not available.
* @throws AmazonServiceException
* If an error response is returned by AmazonSimpleDB indicating
* either a problem with the data in the request, or a server side issue.
*/
public void deleteAttributes(DeleteAttributesRequest deleteAttributesRequest)
throws AmazonServiceException, AmazonClientException {
Request request = new DeleteAttributesRequestMarshaller().marshall(deleteAttributesRequest);
invoke(request, null);
}
/**
*
* The ListDomains operation lists all domains associated
* with the Access Key ID. It returns domain names up to the limit set by
* MaxNumberOfDomains. A NextToken is returned if there are more than
* MaxNumberOfDomains domains. Calling
* ListDomains successive times with the
* NextToken provided by the operation returns up to
* MaxNumberOfDomains more domain names with each successive
* operation call.
*
*
* @param listDomainsRequest Container for the necessary parameters to
* execute the ListDomains service method on AmazonSimpleDB.
*
* @return The response from the ListDomains service method, as returned
* by AmazonSimpleDB.
*
* @throws InvalidParameterValueException
* @throws InvalidNextTokenException
*
* @throws AmazonClientException
* If any internal errors are encountered inside the client while
* attempting to make the request or handle the response. For example
* if a network connection is not available.
* @throws AmazonServiceException
* If an error response is returned by AmazonSimpleDB indicating
* either a problem with the data in the request, or a server side issue.
*/
public ListDomainsResult listDomains(ListDomainsRequest listDomainsRequest)
throws AmazonServiceException, AmazonClientException {
Request request = new ListDomainsRequestMarshaller().marshall(listDomainsRequest);
return invoke(request, new ListDomainsResultStaxUnmarshaller());
}
/**
*
* Returns all of the attributes associated with the specified item.
* Optionally, the attributes returned can be limited to one or more
* attributes by specifying an attribute name parameter.
*
*
* If the item does not exist on the replica that was accessed for this
* operation, an empty set is returned. The system does not return an
* error as it cannot guarantee the item does not exist on other
* replicas.
*
*
* NOTE: If GetAttributes is called without being passed any
* attribute names, all the attributes for the item are returned.
*
*
* @param getAttributesRequest Container for the necessary parameters to
* execute the GetAttributes service method on AmazonSimpleDB.
*
* @return The response from the GetAttributes service method, as
* returned by AmazonSimpleDB.
*
* @throws InvalidParameterValueException
* @throws NoSuchDomainException
* @throws MissingParameterException
*
* @throws AmazonClientException
* If any internal errors are encountered inside the client while
* attempting to make the request or handle the response. For example
* if a network connection is not available.
* @throws AmazonServiceException
* If an error response is returned by AmazonSimpleDB indicating
* either a problem with the data in the request, or a server side issue.
*/
public GetAttributesResult getAttributes(GetAttributesRequest getAttributesRequest)
throws AmazonServiceException, AmazonClientException {
Request request = new GetAttributesRequestMarshaller().marshall(getAttributesRequest);
return invoke(request, new GetAttributesResultStaxUnmarshaller());
}
/**
*
* The BatchPutAttributes operation creates or replaces
* attributes within one or more items. By using this operation, the
* client can perform multiple PutAttribute operation with a single call.
* This helps yield savings in round trips and latencies, enabling
* Amazon SimpleDB to optimize requests and generally produce better
* throughput.
*
*
* The client may specify the item name with the
* Item.X.ItemName parameter. The client may specify new
* attributes using a combination of the
* Item.X.Attribute.Y.Name and
* Item.X.Attribute.Y.Value parameters. The client may
* specify the first attribute for the first item using the parameters
* Item.0.Attribute.0.Name and
* Item.0.Attribute.0.Value ,
* and for the second attribute for the first item by the parameters
* Item.0.Attribute.1.Name and
* Item.0.Attribute.1.Value ,
* and so on.
*
*
* Attributes are uniquely identified within an item by their name/value
* combination. For example, a single item can have the attributes
* { "first_name", "first_value" } and { "first_name",
* "second_value" } .
* However, it cannot have two attribute instances where both the
* Item.X.Attribute.Y.Name and
* Item.X.Attribute.Y.Value are the same.
*
*
* Optionally, the requester can supply the Replace
* parameter for each individual value. Setting this value to
* true will cause the new attribute values to replace the
* existing attribute values. For example, if an item I has
* the attributes { 'a', '1' }, { 'b', '2'} and { 'b',
* '3' } and the requester does a BatchPutAttributes of
* {'I', 'b', '4' } with the Replace parameter set to true,
* the final attributes of the item will be { 'a', '1' } and
* { 'b', '4' } ,
* replacing the previous values of the 'b' attribute with the new
* value.
*
*
* NOTE: You cannot specify an empty string as an item or as an
* attribute name. The BatchPutAttributes operation succeeds or fails in
* its entirety. There are no partial puts.
*
*
* IMPORTANT: This operation is vulnerable to exceeding the
* maximum URL size when making a REST request using the HTTP GET method.
* This operation does not support conditions using Expected.X.Name,
* Expected.X.Value, or Expected.X.Exists.
*
*
* You can execute multiple BatchPutAttributes operations
* and other operations in parallel. However, large numbers of concurrent
* BatchPutAttributes calls can result in Service
* Unavailable (503) responses.
*
*
* The following limitations are enforced for this operation:
*
* - 256 attribute name-value pairs per item
* - 1 MB request size
* - 1 billion attributes per domain
* - 10 GB of total user data storage per domain
* - 25 item limit per
BatchPutAttributes operation
*
*
*
*
*
* @param batchPutAttributesRequest Container for the necessary
* parameters to execute the BatchPutAttributes service method on
* AmazonSimpleDB.
*
* @throws DuplicateItemNameException
* @throws InvalidParameterValueException
* @throws NumberDomainBytesExceededException
* @throws NumberSubmittedItemsExceededException
* @throws NumberSubmittedAttributesExceededException
* @throws NumberDomainAttributesExceededException
* @throws NoSuchDomainException
* @throws NumberItemAttributesExceededException
* @throws MissingParameterException
*
* @throws AmazonClientException
* If any internal errors are encountered inside the client while
* attempting to make the request or handle the response. For example
* if a network connection is not available.
* @throws AmazonServiceException
* If an error response is returned by AmazonSimpleDB indicating
* either a problem with the data in the request, or a server side issue.
*/
public void batchPutAttributes(BatchPutAttributesRequest batchPutAttributesRequest)
throws AmazonServiceException, AmazonClientException {
Request request = new BatchPutAttributesRequestMarshaller().marshall(batchPutAttributesRequest);
invoke(request, null);
}
/**
*
* Returns information about the domain, including when the domain was
* created, the number of items and attributes in the domain, and the
* size of the attribute names and values.
*
*
* @param domainMetadataRequest Container for the necessary parameters to
* execute the DomainMetadata service method on AmazonSimpleDB.
*
* @return The response from the DomainMetadata service method, as
* returned by AmazonSimpleDB.
*
* @throws NoSuchDomainException
* @throws MissingParameterException
*
* @throws AmazonClientException
* If any internal errors are encountered inside the client while
* attempting to make the request or handle the response. For example
* if a network connection is not available.
* @throws AmazonServiceException
* If an error response is returned by AmazonSimpleDB indicating
* either a problem with the data in the request, or a server side issue.
*/
public DomainMetadataResult domainMetadata(DomainMetadataRequest domainMetadataRequest)
throws AmazonServiceException, AmazonClientException {
Request request = new DomainMetadataRequestMarshaller().marshall(domainMetadataRequest);
return invoke(request, new DomainMetadataResultStaxUnmarshaller());
}
/**
*
* The ListDomains operation lists all domains associated
* with the Access Key ID. It returns domain names up to the limit set by
* MaxNumberOfDomains. A NextToken is returned if there are more than
* MaxNumberOfDomains domains. Calling
* ListDomains successive times with the
* NextToken provided by the operation returns up to
* MaxNumberOfDomains more domain names with each successive
* operation call.
*
*
* @return The response from the ListDomains service method, as returned
* by AmazonSimpleDB.
*
* @throws InvalidParameterValueException
* @throws InvalidNextTokenException
*
* @throws AmazonClientException
* If any internal errors are encountered inside the client while
* attempting to make the request or handle the response. For example
* if a network connection is not available.
* @throws AmazonServiceException
* If an error response is returned by AmazonSimpleDB indicating
* either a problem with the data in the request, or a server side issue.
*/
public ListDomainsResult listDomains() throws AmazonServiceException, AmazonClientException {
return listDomains(new ListDomainsRequest());
}
/**
* 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 SimpleDBResponseMetadata getCachedResponseMetadata(AmazonWebServiceRequest request) {
ResponseMetadata metadata = client.getResponseMetadataForRequest(request);
if (metadata != null)
return new SimpleDBResponseMetadata(metadata);
else
return null;
}
private X invoke(Request request, Unmarshaller unmarshaller) {
request.setEndpoint(endpoint);
for (Entry entry : request.getOriginalRequest().copyPrivateRequestParameters().entrySet()) {
request.addParameter(entry.getKey(), entry.getValue());
}
// Apply any additional service specific request handlers that need to be run
if (requestHandlers != null) {
for (RequestHandler requestHandler : requestHandlers) {
request = requestHandler.handleRequest(request);
}
}
try {
signer.sign(request);
} catch (SignatureException e) {
throw new AmazonServiceException("Unable to sign request", e);
}
HttpRequest httpRequest = convertToHttpRequest(request, HttpMethodName.POST);
StaxResponseHandler responseHandler = new com.amazonaws.services.simpledb.internal.SimpleDBStaxResponseHandler(unmarshaller);
DefaultErrorResponseHandler errorResponseHandler = new DefaultErrorResponseHandler(exceptionUnmarshallers);
return (X)client.execute(httpRequest, responseHandler, errorResponseHandler);
}
}