org.finra.herd.dao.impl

Class Ec2DaoImpl

java.lang.Object

org.finra.herd.dao.impl.Ec2DaoImpl

All Implemented Interfaces:

Ec2Dao

@Repository
public class Ec2DaoImpl
extends Object
implements Ec2Dao

The EC2 DAO implementation.

Field Summary

Fields

Modifier and Type	Field and Description
static String	ERROR_CODE_SUBNET_ID_NOT_FOUND http://docs.aws.amazon.com/AWSEC2/latest/APIReference/errors-overview.html

Constructor Summary

Constructors

Constructor and Description
Ec2DaoImpl()

Method Summary

Modifier and Type	Method and Description
List<String>	addSecurityGroupsToEc2Instance(String ec2InstanceId, List<String> securityGroups, AwsParamsDto awsParams) Adds the security groups to an EC2 instance.
List<com.amazonaws.services.ec2.model.AvailabilityZone>	getAvailabilityZonesForSubnetIds(Collection<com.amazonaws.services.ec2.model.Subnet> subnets, AwsParamsDto awsParamsDto) This implementation uses the DescribeAvailabilityZones API to get the list of AZs.
com.amazonaws.services.ec2.AmazonEC2Client	getEc2Client(AwsParamsDto awsParamsDto) Create the EC2 client with the given proxy and access key details This is the main AmazonEC2Client object
List<com.amazonaws.services.ec2.model.SpotPrice>	getLatestSpotPrices(String availabilityZone, Collection<String> instanceTypes, Collection<String> productDescriptions, AwsParamsDto awsParamsDto) This implementation uses DescribeSpotPriceHistory API which returns the latest spot price history for the specified AZ and instance types.
List<com.amazonaws.services.ec2.model.Subnet>	getSubnets(Collection<String> subnetIds, AwsParamsDto awsParamsDto) This implementation uses the DescribeSubnets API.
void	setEc2Operations(Ec2Operations ec2Operations) Sets implementation of the EC2 operations.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ERROR_CODE_SUBNET_ID_NOT_FOUND

public static final String ERROR_CODE_SUBNET_ID_NOT_FOUND

http://docs.aws.amazon.com/AWSEC2/latest/APIReference/errors-overview.html

See Also:

Constant Field Values

Constructor Detail

Ec2DaoImpl

public Ec2DaoImpl()

Method Detail

addSecurityGroupsToEc2Instance

public List<String> addSecurityGroupsToEc2Instance(String ec2InstanceId,
                                                   List<String> securityGroups,
                                                   AwsParamsDto awsParams)

Adds the security groups to an EC2 instance.

Specified by:

addSecurityGroupsToEc2Instance in interface Ec2Dao

Parameters:

ec2InstanceId - the ec2 instance id.

securityGroups - security groups to be added.

awsParams - awsParamsDto object

Returns:

updated security groups.

getEc2Client

public com.amazonaws.services.ec2.AmazonEC2Client getEc2Client(AwsParamsDto awsParamsDto)

Create the EC2 client with the given proxy and access key details This is the main AmazonEC2Client object

Specified by:

getEc2Client in interface Ec2Dao

Parameters:

awsParamsDto - AWS related parameters for access/secret keys and proxy details

Returns:

the AmazonEC2Client object

getLatestSpotPrices

public List<com.amazonaws.services.ec2.model.SpotPrice> getLatestSpotPrices(String availabilityZone,
                                                                            Collection<String> instanceTypes,
                                                                            Collection<String> productDescriptions,
                                                                            AwsParamsDto awsParamsDto)

This implementation uses DescribeSpotPriceHistory API which returns the latest spot price history for the specified AZ and instance types. This method then filters the returned list to only contain the latest spot price for each instance type.

Specified by:

getLatestSpotPrices in interface Ec2Dao

Parameters:

availabilityZone - The AZ which the spot prices belong in.

instanceTypes - The instance types of the spot prices.

productDescriptions - The product descriptions to filter by. Empty collection will be ignored.

awsParamsDto - AWS connection parameters.

Returns:

List of latest spot prices.

getAvailabilityZonesForSubnetIds

public List<com.amazonaws.services.ec2.model.AvailabilityZone> getAvailabilityZonesForSubnetIds(Collection<com.amazonaws.services.ec2.model.Subnet> subnets,
                                                                                                AwsParamsDto awsParamsDto)

This implementation uses the DescribeAvailabilityZones API to get the list of AZs.

Specified by:

getAvailabilityZonesForSubnetIds in interface Ec2Dao

Parameters:

subnets - The subnets which belong to the returned AZs

awsParamsDto - AWS connection parameters.

Returns:

List of AZs

getSubnets

public List<com.amazonaws.services.ec2.model.Subnet> getSubnets(Collection<String> subnetIds,
                                                                AwsParamsDto awsParamsDto)

This implementation uses the DescribeSubnets API.

Specified by:

getSubnets in interface Ec2Dao

Parameters:

subnetIds - List of subnet IDs.

awsParamsDto - AWS connection parameters.

Returns:

List of subnets

setEc2Operations

public void setEc2Operations(Ec2Operations ec2Operations)

Sets implementation of the EC2 operations. This method is required for unit tests that use Mockito framework.

Parameters:

ec2Operations - the implementation of the EC2 operations