com.amazonaws.services.kinesis.model.DescribeStreamRequest Maven / Gradle / Ivy
/*
* Copyright 2010-2014 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.kinesis.model;
import java.io.Serializable;
import com.amazonaws.AmazonWebServiceRequest;
/**
* Container for the parameters to the {@link com.amazonaws.services.kinesis.AmazonKinesis#describeStream(DescribeStreamRequest) DescribeStream operation}.
*
* This operation returns the following information about the stream: the
* current status of the stream, the stream Amazon Resource Name (ARN),
* and an array of shard objects that comprise the stream. For each shard
* object there is information about the hash key and sequence number
* ranges that the shard spans, and the IDs of any earlier shards that
* played in a role in a MergeShards or SplitShard operation that created
* the shard. A sequence number is the identifier associated with every
* record ingested in the Amazon Kinesis stream. The sequence number is
* assigned by the Amazon Kinesis service when a record is put into the
* stream.
*
*
* You can limit the number of returned shards using the
* Limit parameter. The number of shards in a stream may be
* too large to return from a single call to DescribeStream
* .
* You can detect this by using the
* HasMoreShards flag in the returned output.
* HasMoreShards is set to true when there is
* more data available.
*
*
* If there are more shards available, you can request more shards by
* using the shard ID of the last shard returned by the
* DescribeStream request, in the
* ExclusiveStartShardId parameter in a subsequent request
* to DescribeStream .
*
* DescribeStream is a paginated
* operation.
*
*
* DescribeStream has a limit of 10 transactions per second
* per account.
*
*
* @see com.amazonaws.services.kinesis.AmazonKinesis#describeStream(DescribeStreamRequest)
*/
public class DescribeStreamRequest extends AmazonWebServiceRequest implements Serializable {
/**
* The name of the stream to describe.
*
* Constraints:
* Length: 1 - 128
* Pattern: [a-zA-Z0-9_.-]+
*/
private String streamName;
/**
* The maximum number of shards to return.
*
* Constraints:
* Range: 1 - 10000
*/
private Integer limit;
/**
* The shard ID of the shard to start with for the stream description.
*
* Constraints:
* Length: 1 - 128
* Pattern: [a-zA-Z0-9_.-]+
*/
private String exclusiveStartShardId;
/**
* The name of the stream to describe.
*
* Constraints:
* Length: 1 - 128
* Pattern: [a-zA-Z0-9_.-]+
*
* @return The name of the stream to describe.
*/
public String getStreamName() {
return streamName;
}
/**
* The name of the stream to describe.
*
* Constraints:
* Length: 1 - 128
* Pattern: [a-zA-Z0-9_.-]+
*
* @param streamName The name of the stream to describe.
*/
public void setStreamName(String streamName) {
this.streamName = streamName;
}
/**
* The name of the stream to describe.
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Length: 1 - 128
* Pattern: [a-zA-Z0-9_.-]+
*
* @param streamName The name of the stream to describe.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public DescribeStreamRequest withStreamName(String streamName) {
this.streamName = streamName;
return this;
}
/**
* The maximum number of shards to return.
*
* Constraints:
* Range: 1 - 10000
*
* @return The maximum number of shards to return.
*/
public Integer getLimit() {
return limit;
}
/**
* The maximum number of shards to return.
*
* Constraints:
* Range: 1 - 10000
*
* @param limit The maximum number of shards to return.
*/
public void setLimit(Integer limit) {
this.limit = limit;
}
/**
* The maximum number of shards to return.
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Range: 1 - 10000
*
* @param limit The maximum number of shards to return.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public DescribeStreamRequest withLimit(Integer limit) {
this.limit = limit;
return this;
}
/**
* The shard ID of the shard to start with for the stream description.
*
* Constraints:
* Length: 1 - 128
* Pattern: [a-zA-Z0-9_.-]+
*
* @return The shard ID of the shard to start with for the stream description.
*/
public String getExclusiveStartShardId() {
return exclusiveStartShardId;
}
/**
* The shard ID of the shard to start with for the stream description.
*
* Constraints:
* Length: 1 - 128
* Pattern: [a-zA-Z0-9_.-]+
*
* @param exclusiveStartShardId The shard ID of the shard to start with for the stream description.
*/
public void setExclusiveStartShardId(String exclusiveStartShardId) {
this.exclusiveStartShardId = exclusiveStartShardId;
}
/**
* The shard ID of the shard to start with for the stream description.
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Length: 1 - 128
* Pattern: [a-zA-Z0-9_.-]+
*
* @param exclusiveStartShardId The shard ID of the shard to start with for the stream description.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public DescribeStreamRequest withExclusiveStartShardId(String exclusiveStartShardId) {
this.exclusiveStartShardId = exclusiveStartShardId;
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 (getStreamName() != null) sb.append("StreamName: " + getStreamName() + ",");
if (getLimit() != null) sb.append("Limit: " + getLimit() + ",");
if (getExclusiveStartShardId() != null) sb.append("ExclusiveStartShardId: " + getExclusiveStartShardId() );
sb.append("}");
return sb.toString();
}
@Override
public int hashCode() {
final int prime = 31;
int hashCode = 1;
hashCode = prime * hashCode + ((getStreamName() == null) ? 0 : getStreamName().hashCode());
hashCode = prime * hashCode + ((getLimit() == null) ? 0 : getLimit().hashCode());
hashCode = prime * hashCode + ((getExclusiveStartShardId() == null) ? 0 : getExclusiveStartShardId().hashCode());
return hashCode;
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (obj instanceof DescribeStreamRequest == false) return false;
DescribeStreamRequest other = (DescribeStreamRequest)obj;
if (other.getStreamName() == null ^ this.getStreamName() == null) return false;
if (other.getStreamName() != null && other.getStreamName().equals(this.getStreamName()) == false) return false;
if (other.getLimit() == null ^ this.getLimit() == null) return false;
if (other.getLimit() != null && other.getLimit().equals(this.getLimit()) == false) return false;
if (other.getExclusiveStartShardId() == null ^ this.getExclusiveStartShardId() == null) return false;
if (other.getExclusiveStartShardId() != null && other.getExclusiveStartShardId().equals(this.getExclusiveStartShardId()) == false) return false;
return true;
}
}