public class AbstractAmazonSQS extends Object implements AmazonSQS
AmazonSQS
. Convenient method forms pass
through to the corresponding overload that takes a request object, which
throws an UnsupportedOperationException
.Modifier | Constructor and Description |
---|---|
protected |
AbstractAmazonSQS() |
Modifier and Type | Method and Description |
---|---|
AddPermissionResult |
addPermission(AddPermissionRequest request)
Adds a permission to a queue for a specific principal.
|
AddPermissionResult |
addPermission(String queueUrl,
String label,
List<String> aWSAccountIds,
List<String> actions)
Simplified method form for invoking the AddPermission operation.
|
ChangeMessageVisibilityResult |
changeMessageVisibility(ChangeMessageVisibilityRequest request)
Changes the visibility timeout of a specified message in a queue to a new
value.
|
ChangeMessageVisibilityResult |
changeMessageVisibility(String queueUrl,
String receiptHandle,
Integer visibilityTimeout)
Simplified method form for invoking the ChangeMessageVisibility
operation.
|
ChangeMessageVisibilityBatchResult |
changeMessageVisibilityBatch(ChangeMessageVisibilityBatchRequest request)
Changes the visibility timeout of multiple messages.
|
ChangeMessageVisibilityBatchResult |
changeMessageVisibilityBatch(String queueUrl,
List<ChangeMessageVisibilityBatchRequestEntry> entries)
Simplified method form for invoking the ChangeMessageVisibilityBatch
operation.
|
CreateQueueResult |
createQueue(CreateQueueRequest request)
Creates a new queue, or returns the URL of an existing one.
|
CreateQueueResult |
createQueue(String queueName)
Simplified method form for invoking the CreateQueue operation.
|
DeleteMessageResult |
deleteMessage(DeleteMessageRequest request)
Deletes the specified message from the specified queue.
|
DeleteMessageResult |
deleteMessage(String queueUrl,
String receiptHandle)
Simplified method form for invoking the DeleteMessage operation.
|
DeleteMessageBatchResult |
deleteMessageBatch(DeleteMessageBatchRequest request)
Deletes up to ten messages from the specified queue.
|
DeleteMessageBatchResult |
deleteMessageBatch(String queueUrl,
List<DeleteMessageBatchRequestEntry> entries)
Simplified method form for invoking the DeleteMessageBatch operation.
|
DeleteQueueResult |
deleteQueue(DeleteQueueRequest request)
Deletes the queue specified by the queue URL, regardless of
whether the queue is empty.
|
DeleteQueueResult |
deleteQueue(String queueUrl)
Simplified method form for invoking the DeleteQueue operation.
|
ResponseMetadata |
getCachedResponseMetadata(AmazonWebServiceRequest request)
Returns additional metadata for a previously executed successful request,
typically used for debugging issues where a service isn't acting as
expected.
|
GetQueueAttributesResult |
getQueueAttributes(GetQueueAttributesRequest request)
Gets attributes for the specified queue.
|
GetQueueAttributesResult |
getQueueAttributes(String queueUrl,
List<String> attributeNames)
Simplified method form for invoking the GetQueueAttributes operation.
|
GetQueueUrlResult |
getQueueUrl(GetQueueUrlRequest request)
Returns the URL of an existing queue.
|
GetQueueUrlResult |
getQueueUrl(String queueName)
Simplified method form for invoking the GetQueueUrl operation.
|
ListDeadLetterSourceQueuesResult |
listDeadLetterSourceQueues(ListDeadLetterSourceQueuesRequest request)
Returns a list of your queues that have the RedrivePolicy queue attribute
configured with a dead letter queue.
|
ListQueuesResult |
listQueues()
Simplified method form for invoking the ListQueues operation.
|
ListQueuesResult |
listQueues(ListQueuesRequest request)
Returns a list of your queues.
|
ListQueuesResult |
listQueues(String queueNamePrefix)
Simplified method form for invoking the ListQueues operation.
|
PurgeQueueResult |
purgeQueue(PurgeQueueRequest request)
Deletes the messages in a queue specified by the queue URL.
|
ReceiveMessageResult |
receiveMessage(ReceiveMessageRequest request)
Retrieves one or more messages, with a maximum limit of 10 messages, from
the specified queue.
|
ReceiveMessageResult |
receiveMessage(String queueUrl)
Simplified method form for invoking the ReceiveMessage operation.
|
RemovePermissionResult |
removePermission(RemovePermissionRequest request)
Revokes any permissions in the queue policy that matches the specified
Label parameter. |
RemovePermissionResult |
removePermission(String queueUrl,
String label)
Simplified method form for invoking the RemovePermission operation.
|
SendMessageResult |
sendMessage(SendMessageRequest request)
Delivers a message to the specified queue.
|
SendMessageResult |
sendMessage(String queueUrl,
String messageBody)
Simplified method form for invoking the SendMessage operation.
|
SendMessageBatchResult |
sendMessageBatch(SendMessageBatchRequest request)
Delivers up to ten messages to the specified queue.
|
SendMessageBatchResult |
sendMessageBatch(String queueUrl,
List<SendMessageBatchRequestEntry> entries)
Simplified method form for invoking the SendMessageBatch operation.
|
void |
setEndpoint(String endpoint)
Overrides the default endpoint for this client
("https://sqs.us-east-1.amazonaws.com").
|
SetQueueAttributesResult |
setQueueAttributes(SetQueueAttributesRequest request)
Sets the value of one or more queue attributes.
|
SetQueueAttributesResult |
setQueueAttributes(String queueUrl,
Map<String,String> attributes)
Simplified method form for invoking the SetQueueAttributes operation.
|
void |
setRegion(Region region)
An alternative to
AmazonSQS.setEndpoint(String) , sets the
regional endpoint for this client's service calls. |
void |
shutdown()
Shuts down this client object, releasing any resources that might be held
open.
|
public void setEndpoint(String endpoint)
AmazonSQS
Callers can pass in just the endpoint (ex: "sqs.us-east-1.amazonaws.com")
or a full URL, including the protocol (ex:
"https://sqs.us-east-1.amazonaws.com"). If the protocol is not specified
here, the default protocol from this client's ClientConfiguration
will be used, which by default is HTTPS.
For more information on using AWS regions with the AWS SDK for Java, and a complete list of all available endpoints for all AWS services, see: http://developer.amazonwebservices.com/connect/entry.jspa?externalID= 3912
This method is not threadsafe. An endpoint should be configured when the client is created and before any service requests are made. Changing it afterwards creates inevitable race conditions for any service requests in transit or retrying.
setEndpoint
in interface AmazonSQS
endpoint
- The endpoint (ex: "sqs.us-east-1.amazonaws.com") or a full URL,
including the protocol (ex: "https://sqs.us-east-1.amazonaws.com")
of the region specific AWS endpoint this client will communicate
with.public void setRegion(Region region)
AmazonSQS
AmazonSQS.setEndpoint(String)
, sets the
regional endpoint for this client's service calls. Callers can use this
method to control which AWS region they want to work with.
By default, all service endpoints in all regions use the https protocol.
To use http instead, specify it in the ClientConfiguration
supplied at construction.
This method is not threadsafe. A region should be configured when the client is created and before any service requests are made. Changing it afterwards creates inevitable race conditions for any service requests in transit or retrying.
setRegion
in interface AmazonSQS
region
- The region this client will communicate with. See
Region.getRegion(com.amazonaws.regions.Regions)
for
accessing a given region. Must not be null and must be a region
where the service is available.Region.getRegion(com.amazonaws.regions.Regions)
,
Region.createClient(Class,
com.amazonaws.auth.AWSCredentialsProvider, ClientConfiguration)
,
Region.isServiceSupported(String)
public AddPermissionResult addPermission(AddPermissionRequest request)
AmazonSQS
Adds a permission to a queue for a specific principal. This allows for sharing access to the queue.
When you create a queue, you have full control access rights for the queue. Only you (as owner of the queue) can grant or deny permissions to the queue. For more information about these permissions, see Shared Queues in the Amazon SQS Developer Guide.
AddPermission
writes an Amazon SQS-generated policy. If you
want to write your own policy, use SetQueueAttributes to upload
your policy. For more information about writing your own policy, see Using The Access Policy Language in the Amazon SQS Developer
Guide.
Some API actions take lists of parameters. These lists are specified
using the param.n
notation. Values of n
are
integers starting from 1. For example, a parameter list with two elements
looks like this:
addPermission
in interface AmazonSQS
public AddPermissionResult addPermission(String queueUrl, String label, List<String> aWSAccountIds, List<String> actions)
AmazonSQS
addPermission
in interface AmazonSQS
AmazonSQS.addPermission(AddPermissionRequest)
public ChangeMessageVisibilityResult changeMessageVisibility(ChangeMessageVisibilityRequest request)
AmazonSQS
Changes the visibility timeout of a specified message in a queue to a new value. The maximum allowed timeout value you can set the value to is 12 hours. This means you can't extend the timeout of a message in an existing queue to more than a total visibility timeout of 12 hours. (For more information visibility timeout, see Visibility Timeout in the Amazon SQS Developer Guide.)
For example, let's say you have a message and its default message
visibility timeout is 5 minutes. After 3 minutes, you call
ChangeMessageVisiblity
with a timeout of 10 minutes. At that
time, the timeout for the message would be extended by 10 minutes beyond
the time of the ChangeMessageVisibility call. This results in a total
visibility timeout of 13 minutes. You can continue to call
ChangeMessageVisibility to extend the visibility timeout to a maximum of
12 hours. If you try to extend beyond 12 hours, the request will be
rejected.
There is a 120,000 limit for the number of inflight messages per queue. Messages are inflight after they have been received from the queue by a consuming component, but have not yet been deleted from the queue. If you reach the 120,000 limit, you will receive an OverLimit error message from Amazon SQS. To help avoid reaching the limit, you should delete the messages from the queue after they have been processed. You can also increase the number of queues you use to process the messages.
If you attempt to set the VisibilityTimeout
to an amount
more than the maximum time left, Amazon SQS returns an error. It will not
automatically recalculate and increase the timeout to the maximum time
remaining.
Unlike with a queue, when you change the visibility timeout for a
specific message, that timeout value is applied immediately but is not
saved in memory for that message. If you don't delete a message after it
is received, the visibility timeout for the message the next time it is
received reverts to the original timeout value, not the value you set
with the ChangeMessageVisibility
action.
changeMessageVisibility
in interface AmazonSQS
public ChangeMessageVisibilityResult changeMessageVisibility(String queueUrl, String receiptHandle, Integer visibilityTimeout)
AmazonSQS
changeMessageVisibility
in interface AmazonSQS
AmazonSQS.changeMessageVisibility(ChangeMessageVisibilityRequest)
public ChangeMessageVisibilityBatchResult changeMessageVisibilityBatch(ChangeMessageVisibilityBatchRequest request)
AmazonSQS
Changes the visibility timeout of multiple messages. This is a batch
version of ChangeMessageVisibility. The result of the action on
each message is reported individually in the response. You can send up to
10 ChangeMessageVisibility requests with each
ChangeMessageVisibilityBatch
action.
Because the batch request can result in a combination of successful and unsuccessful actions, you should check for batch errors even when the call returns an HTTP status code of 200.
Some API actions take lists of parameters. These lists are specified
using the param.n
notation. Values of n
are
integers starting from 1. For example, a parameter list with two elements
looks like this:
changeMessageVisibilityBatch
in interface AmazonSQS
public ChangeMessageVisibilityBatchResult changeMessageVisibilityBatch(String queueUrl, List<ChangeMessageVisibilityBatchRequestEntry> entries)
AmazonSQS
changeMessageVisibilityBatch
in interface AmazonSQS
AmazonSQS.changeMessageVisibilityBatch(ChangeMessageVisibilityBatchRequest)
public CreateQueueResult createQueue(CreateQueueRequest request)
AmazonSQS
Creates a new queue, or returns the URL of an existing one. When you
request CreateQueue
, you provide a name for the queue. To
successfully create a new queue, you must provide a name that is unique
within the scope of your own queues.
If you delete a queue, you must wait at least 60 seconds before creating a queue with the same name.
You may pass one or more attributes in the request. If you do not provide a value for any attribute, the queue will have the default value for that attribute.
Use GetQueueUrl to get a queue's URL. GetQueueUrl requires
only the QueueName
parameter.
If you provide the name of an existing queue, along with the exact names
and values of all the queue's attributes, CreateQueue
returns the queue URL for the existing queue. If the queue name,
attribute names, or attribute values do not match an existing queue,
CreateQueue
returns an error.
Some API actions take lists of parameters. These lists are specified
using the param.n
notation. Values of n
are
integers starting from 1. For example, a parameter list with two elements
looks like this:
createQueue
in interface AmazonSQS
public CreateQueueResult createQueue(String queueName)
AmazonSQS
createQueue
in interface AmazonSQS
AmazonSQS.createQueue(CreateQueueRequest)
public DeleteMessageResult deleteMessage(DeleteMessageRequest request)
AmazonSQS
Deletes the specified message from the specified queue. You specify the
message by using the message's receipt handle
and not the
message ID
you received when you sent the message. Even if
the message is locked by another reader due to the visibility timeout
setting, it is still deleted from the queue. If you leave a message in
the queue for longer than the queue's configured retention period, Amazon
SQS automatically deletes it.
The receipt handle is associated with a specific instance of receiving
the message. If you receive a message more than once, the receipt handle
you get each time you receive the message is different. When you request
DeleteMessage
, if you don't provide the most recently
received receipt handle for the message, the request will still succeed,
but the message might not be deleted.
It is possible you will receive a message even after you have deleted it. This might happen on rare occasions if one of the servers storing a copy of the message is unavailable when you request to delete the message. The copy remains on the server and might be returned to you again on a subsequent receive request. You should create your system to be idempotent so that receiving a particular message more than once is not a problem.
deleteMessage
in interface AmazonSQS
public DeleteMessageResult deleteMessage(String queueUrl, String receiptHandle)
AmazonSQS
deleteMessage
in interface AmazonSQS
AmazonSQS.deleteMessage(DeleteMessageRequest)
public DeleteMessageBatchResult deleteMessageBatch(DeleteMessageBatchRequest request)
AmazonSQS
Deletes up to ten messages from the specified queue. This is a batch version of DeleteMessage. The result of the delete action on each message is reported individually in the response.
Because the batch request can result in a combination of successful and unsuccessful actions, you should check for batch errors even when the call returns an HTTP status code of 200.
Some API actions take lists of parameters. These lists are specified
using the param.n
notation. Values of n
are
integers starting from 1. For example, a parameter list with two elements
looks like this:
deleteMessageBatch
in interface AmazonSQS
public DeleteMessageBatchResult deleteMessageBatch(String queueUrl, List<DeleteMessageBatchRequestEntry> entries)
AmazonSQS
deleteMessageBatch
in interface AmazonSQS
AmazonSQS.deleteMessageBatch(DeleteMessageBatchRequest)
public DeleteQueueResult deleteQueue(DeleteQueueRequest request)
AmazonSQS
Deletes the queue specified by the queue URL, regardless of whether the queue is empty. If the specified queue does not exist, Amazon SQS returns a successful response.
Use DeleteQueue
with care; once you delete your queue, any
messages in the queue are no longer available.
When you delete a queue, the deletion process takes up to 60 seconds. Requests you send involving that queue during the 60 seconds might succeed. For example, a SendMessage request might succeed, but after the 60 seconds, the queue and that message you sent no longer exist. Also, when you delete a queue, you must wait at least 60 seconds before creating a queue with the same name.
We reserve the right to delete queues that have had no activity for more than 30 days. For more information, see How Amazon SQS Queues Work in the Amazon SQS Developer Guide.
deleteQueue
in interface AmazonSQS
public DeleteQueueResult deleteQueue(String queueUrl)
AmazonSQS
deleteQueue
in interface AmazonSQS
AmazonSQS.deleteQueue(DeleteQueueRequest)
public GetQueueAttributesResult getQueueAttributes(GetQueueAttributesRequest request)
AmazonSQS
Gets attributes for the specified queue.
Some API actions take lists of parameters. These lists are specified
using the param.n
notation. Values of n
are
integers starting from 1. For example, a parameter list with two elements
looks like this:
getQueueAttributes
in interface AmazonSQS
public GetQueueAttributesResult getQueueAttributes(String queueUrl, List<String> attributeNames)
AmazonSQS
getQueueAttributes
in interface AmazonSQS
AmazonSQS.getQueueAttributes(GetQueueAttributesRequest)
public GetQueueUrlResult getQueueUrl(GetQueueUrlRequest request)
AmazonSQS
Returns the URL of an existing queue. This action provides a simple way to retrieve the URL of an Amazon SQS queue.
To access a queue that belongs to another AWS account, use the
QueueOwnerAWSAccountId
parameter to specify the account ID
of the queue's owner. The queue's owner must grant you permission to
access the queue. For more information about shared queue access, see
AddPermission or go to Shared Queues in the Amazon SQS Developer Guide.
getQueueUrl
in interface AmazonSQS
public GetQueueUrlResult getQueueUrl(String queueName)
AmazonSQS
getQueueUrl
in interface AmazonSQS
AmazonSQS.getQueueUrl(GetQueueUrlRequest)
public ListDeadLetterSourceQueuesResult listDeadLetterSourceQueues(ListDeadLetterSourceQueuesRequest request)
AmazonSQS
Returns a list of your queues that have the RedrivePolicy queue attribute configured with a dead letter queue.
For more information about using dead letter queues, see Using Amazon SQS Dead Letter Queues.
listDeadLetterSourceQueues
in interface AmazonSQS
public ListQueuesResult listQueues(ListQueuesRequest request)
AmazonSQS
Returns a list of your queues. The maximum number of queues that can be
returned is 1000. If you specify a value for the optional
QueueNamePrefix
parameter, only queues with a name beginning
with the specified value are returned.
listQueues
in interface AmazonSQS
public ListQueuesResult listQueues()
AmazonSQS
listQueues
in interface AmazonSQS
AmazonSQS.listQueues(ListQueuesRequest)
public ListQueuesResult listQueues(String queueNamePrefix)
AmazonSQS
listQueues
in interface AmazonSQS
AmazonSQS.listQueues(ListQueuesRequest)
public PurgeQueueResult purgeQueue(PurgeQueueRequest request)
AmazonSQS
Deletes the messages in a queue specified by the queue URL.
When you use the PurgeQueue
API, the deleted messages in the
queue cannot be retrieved.
When you purge a queue, the message deletion process takes up to 60
seconds. All messages sent to the queue before calling
PurgeQueue
will be deleted; messages sent to the queue while
it is being purged may be deleted. While the queue is being purged,
messages sent to the queue before PurgeQueue
was called may
be received, but will be deleted within the next minute.
purgeQueue
in interface AmazonSQS
public ReceiveMessageResult receiveMessage(ReceiveMessageRequest request)
AmazonSQS
Retrieves one or more messages, with a maximum limit of 10 messages, from
the specified queue. Long poll support is enabled by using the
WaitTimeSeconds
parameter. For more information, see Amazon SQS Long Poll in the Amazon SQS Developer Guide.
Short poll is the default behavior where a weighted random set of
machines is sampled on a ReceiveMessage
call. This means
only the messages on the sampled machines are returned. If the number of
messages in the queue is small (less than 1000), it is likely you will
get fewer messages than you requested per ReceiveMessage
call. If the number of messages in the queue is extremely small, you
might not receive any messages in a particular
ReceiveMessage
response; in which case you should repeat the
request.
For each message returned, the response includes the following:
Message body
MD5 digest of the message body. For information about MD5, go to http://www.faqs.org/rfcs/rfc1321.html.
Message ID you received when you sent the message to the queue.
Receipt handle.
Message attributes.
MD5 digest of the message attributes.
The receipt handle is the identifier you must provide when deleting the message. For more information, see Queue and Message Identifiers in the Amazon SQS Developer Guide.
You can provide the VisibilityTimeout
parameter in your
request, which will be applied to the messages that Amazon SQS returns in
the response. If you do not include the parameter, the overall visibility
timeout for the queue is used for the returned messages. For more
information, see Visibility Timeout in the Amazon SQS Developer Guide.
Going forward, new attributes might be added. If you are writing code that calls this action, we recommend that you structure your code so that it can handle new attributes gracefully.
receiveMessage
in interface AmazonSQS
public ReceiveMessageResult receiveMessage(String queueUrl)
AmazonSQS
receiveMessage
in interface AmazonSQS
AmazonSQS.receiveMessage(ReceiveMessageRequest)
public RemovePermissionResult removePermission(RemovePermissionRequest request)
AmazonSQS
Revokes any permissions in the queue policy that matches the specified
Label
parameter. Only the owner of the queue can remove
permissions.
removePermission
in interface AmazonSQS
public RemovePermissionResult removePermission(String queueUrl, String label)
AmazonSQS
removePermission
in interface AmazonSQS
AmazonSQS.removePermission(RemovePermissionRequest)
public SendMessageResult sendMessage(SendMessageRequest request)
AmazonSQS
Delivers a message to the specified queue. With Amazon SQS, you now have the ability to send large payload messages that are up to 256KB (262,144 bytes) in size. To send large payloads, you must use an AWS SDK that supports SigV4 signing. To verify whether SigV4 is supported for an AWS SDK, check the SDK release notes.
The following list shows the characters (in Unicode) allowed in your message, according to the W3C XML specification. For more information, go to http://www.w3.org/TR/REC -xml/#charsets If you send any characters not included in the list, your request will be rejected.
#x9 | #xA | #xD | [#x20 to #xD7FF] | [#xE000 to #xFFFD] | [#x10000 to #x10FFFF]
sendMessage
in interface AmazonSQS
public SendMessageResult sendMessage(String queueUrl, String messageBody)
AmazonSQS
sendMessage
in interface AmazonSQS
AmazonSQS.sendMessage(SendMessageRequest)
public SendMessageBatchResult sendMessageBatch(SendMessageBatchRequest request)
AmazonSQS
Delivers up to ten messages to the specified queue. This is a batch version of SendMessage. The result of the send action on each message is reported individually in the response. The maximum allowed individual message size is 256 KB (262,144 bytes).
The maximum total payload size (i.e., the sum of all a batch's individual message lengths) is also 256 KB (262,144 bytes).
If the DelaySeconds
parameter is not specified for an entry,
the default for the queue is used.
The following list shows the characters (in Unicode) that are allowed in your message, according to the W3C XML specification. For more information, go to http:// www.faqs.org/rfcs/rfc1321.html. If you send any characters that are not included in the list, your request will be rejected.
#x9 | #xA | #xD | [#x20 to #xD7FF] | [#xE000 to #xFFFD] | [#x10000 to #x10FFFF]
Because the batch request can result in a combination of successful and unsuccessful actions, you should check for batch errors even when the call returns an HTTP status code of 200.
Some API actions take lists of parameters. These lists are specified
using the param.n
notation. Values of n
are
integers starting from 1. For example, a parameter list with two elements
looks like this:
sendMessageBatch
in interface AmazonSQS
public SendMessageBatchResult sendMessageBatch(String queueUrl, List<SendMessageBatchRequestEntry> entries)
AmazonSQS
sendMessageBatch
in interface AmazonSQS
AmazonSQS.sendMessageBatch(SendMessageBatchRequest)
public SetQueueAttributesResult setQueueAttributes(SetQueueAttributesRequest request)
AmazonSQS
Sets the value of one or more queue attributes. When you change a queue's
attributes, the change can take up to 60 seconds for most of the
attributes to propagate throughout the SQS system. Changes made to the
MessageRetentionPeriod
attribute can take up to 15 minutes.
Going forward, new attributes might be added. If you are writing code that calls this action, we recommend that you structure your code so that it can handle new attributes gracefully.
setQueueAttributes
in interface AmazonSQS
public SetQueueAttributesResult setQueueAttributes(String queueUrl, Map<String,String> attributes)
AmazonSQS
setQueueAttributes
in interface AmazonSQS
AmazonSQS.setQueueAttributes(SetQueueAttributesRequest)
public void shutdown()
AmazonSQS
public ResponseMetadata getCachedResponseMetadata(AmazonWebServiceRequest request)
AmazonSQS
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 a request.
getCachedResponseMetadata
in interface AmazonSQS
request
- The originally executed request.Copyright © 2016. All rights reserved.