org.jclouds.compute.internal

Class BaseComputeService

java.lang.Object

org.jclouds.compute.internal.BaseComputeService

All Implemented Interfaces:

ComputeService

Direct Known Subclasses:

EC2ComputeService, GoGridComputeService, TerremarkVCloudComputeService

@Singleton
public class BaseComputeService
extends Object
implements ComputeService

Author:

Adrian Cole

Field Summary

Fields

Modifier and Type	Field and Description
protected ComputeServiceContext	context
protected Map<String,Credentials>	credentialStore
protected Logger	logger

Constructor Summary

Constructors

Modifier

Constructor and Description

protected

BaseComputeService(ComputeServiceContext context, Map<String,Credentials> credentialStore, com.google.common.base.Supplier<Set<? extends Image>> images, com.google.common.base.Supplier<Set<? extends Hardware>> hardwareProfiles, com.google.common.base.Supplier<Set<? extends Location>> locations, ListNodesStrategy listNodesStrategy, GetNodeMetadataStrategy getNodeMetadataStrategy, CreateNodesInGroupThenAddToSet runNodesAndAddToSetStrategy, RebootNodeStrategy rebootNodeStrategy, DestroyNodeStrategy destroyNodeStrategy, ResumeNodeStrategy resumeNodeStrategy, SuspendNodeStrategy suspendNodeStrategy, Provider<TemplateBuilder> templateBuilderProvider, Provider<TemplateOptions> templateOptionsProvider, com.google.common.base.Predicate<AtomicReference<NodeMetadata>> nodeRunning, com.google.common.base.Predicate<AtomicReference<NodeMetadata>> nodeTerminated, com.google.common.base.Predicate<AtomicReference<NodeMetadata>> nodeSuspended, InitializeRunScriptOnNodeOrPlaceInBadMap.Factory initScriptRunnerFactory, InitAdminAccess initAdminAccess, RunScriptOnNode.Factory runScriptOnNodeFactory, PersistNodeCredentials persistNodeCredentials, ComputeServiceConstants.Timeouts timeouts, ExecutorService executor)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	cleanUpIncidentalResourcesOfDeadNodes(Set<? extends NodeMetadata> deadNodes)
Set<? extends NodeMetadata>	createNodesInGroup(String group, int count) Like ComputeService.createNodesInGroup(String,int,TemplateOptions), except that the options are default, as specified in ComputeService.templateOptions().
Set<? extends NodeMetadata>	createNodesInGroup(String group, int count, Template template) The compute api treats nodes as a group based on the name you specify.
Set<? extends NodeMetadata>	createNodesInGroup(String group, int count, TemplateOptions templateOptions) Like ComputeService.createNodesInGroup(String,int,Template), except that the template is default, equivalent to templateBuilder().any().options(templateOptions).
void	destroyNode(String id) destroy the node, given its id.
Set<? extends NodeMetadata>	destroyNodesMatching(com.google.common.base.Predicate<NodeMetadata> filter) nodes matching the filter are treated as a logical set.
protected NodeMetadata	doDestroyNode(String id)
ComputeServiceContext	getContext()
NodeMetadata	getNodeMetadata(String id) Find a node by its id.
Set<? extends Location>	listAssignableLocations() The list locations command returns all the valid locations for nodes.
Set<? extends Hardware>	listHardwareProfiles() The list hardware profiles command shows you the options including virtual cpu count, memory, and disks.
Set<? extends Image>	listImages() Images define the operating system and metadata related to a node.
Set<ComputeMetadata>	listNodes() all nodes available to the current user by id.
Set<? extends NodeMetadata>	listNodesDetailsMatching(com.google.common.base.Predicate<ComputeMetadata> filter) get all nodes including details such as image and ip addresses even if it incurs extra requests to the service.
void	rebootNode(String id) reboot the node, given its id.
void	rebootNodesMatching(com.google.common.base.Predicate<NodeMetadata> filter) nodes matching the filter are treated as a logical set.
void	resumeNode(String id) resume the node from suspended state, given its id.
void	resumeNodesMatching(com.google.common.base.Predicate<NodeMetadata> filter) nodes matching the filter are treated as a logical set.
ExecResponse	runScriptOnNode(String id, Statement runScript)
ExecResponse	runScriptOnNode(String id, Statement runScript, RunScriptOptions options) Run the script on a specific node
ExecResponse	runScriptOnNode(String id, String runScript)
ExecResponse	runScriptOnNode(String id, String runScript, RunScriptOptions options)
Map<NodeMetadata,ExecResponse>	runScriptOnNodesMatching(com.google.common.base.Predicate<NodeMetadata> filter, Statement runScript)
Map<NodeMetadata,ExecResponse>	runScriptOnNodesMatching(com.google.common.base.Predicate<NodeMetadata> filter, Statement runScript, RunScriptOptions options) Run the script on all nodes with the specific predicate.
Map<NodeMetadata,ExecResponse>	runScriptOnNodesMatching(com.google.common.base.Predicate<NodeMetadata> filter, String runScript)
Map<? extends NodeMetadata,ExecResponse>	runScriptOnNodesMatching(com.google.common.base.Predicate<NodeMetadata> filter, String runScript, RunScriptOptions options)
com.google.common.util.concurrent.ListenableFuture<ExecResponse>	submitScriptOnNode(String id, Statement runScript, RunScriptOptions options) Run the script on a specific node in the background, typically as nohup
void	suspendNode(String id) suspend the node, given its id.
void	suspendNodesMatching(com.google.common.base.Predicate<NodeMetadata> filter) nodes matching the filter are treated as a logical set.
TemplateBuilder	templateBuilder() Makes a new template builder for this service
TemplateOptions	templateOptions() Makes a new set of options for running nodes
protected NodeMetadata	updateNodeWithCredentialsIfPresent(NodeMetadata node, RunScriptOptions options)

Methods inherited from class java.lang.Object

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

Field Detail

logger

@Named(value="jclouds.compute")
protected Logger logger

context

protected final ComputeServiceContext context

credentialStore

protected final Map<String,Credentials> credentialStore

Constructor Detail

BaseComputeService

@Inject
protected BaseComputeService(ComputeServiceContext context,
                         Map<String,Credentials> credentialStore,
                         com.google.common.base.Supplier<Set<? extends Image>> images,
                         com.google.common.base.Supplier<Set<? extends Hardware>> hardwareProfiles,
                         com.google.common.base.Supplier<Set<? extends Location>> locations,
                         ListNodesStrategy listNodesStrategy,
                         GetNodeMetadataStrategy getNodeMetadataStrategy,
                         CreateNodesInGroupThenAddToSet runNodesAndAddToSetStrategy,
                         RebootNodeStrategy rebootNodeStrategy,
                         DestroyNodeStrategy destroyNodeStrategy,
                         ResumeNodeStrategy resumeNodeStrategy,
                         SuspendNodeStrategy suspendNodeStrategy,
                         Provider<TemplateBuilder> templateBuilderProvider,
                         Provider<TemplateOptions> templateOptionsProvider,
                         @Named(value="NODE_RUNNING")
                         com.google.common.base.Predicate<AtomicReference<NodeMetadata>> nodeRunning,
                         @Named(value="NODE_TERMINATED")
                         com.google.common.base.Predicate<AtomicReference<NodeMetadata>> nodeTerminated,
                         @Named(value="NODE_SUSPENDED")
                         com.google.common.base.Predicate<AtomicReference<NodeMetadata>> nodeSuspended,
                         InitializeRunScriptOnNodeOrPlaceInBadMap.Factory initScriptRunnerFactory,
                         InitAdminAccess initAdminAccess,
                         RunScriptOnNode.Factory runScriptOnNodeFactory,
                         PersistNodeCredentials persistNodeCredentials,
                         ComputeServiceConstants.Timeouts timeouts,
                         @Named(value="jclouds.user-threads")
                         ExecutorService executor)

Method Detail

getContext

public ComputeServiceContext getContext()

Specified by:

getContext in interface ComputeService

Returns:

a reference to the context that created this ComputeService.

createNodesInGroup

public Set<? extends NodeMetadata> createNodesInGroup(String group,
                                             int count,
                                             Template template)
                                               throws RunNodesException

Description copied from interface: ComputeService

The compute api treats nodes as a group based on the name you specify. Using this group, you can choose to operate one or many nodes as a logical unit without regard to the implementation details of the cloud.

The set that is returned will include credentials you can use to ssh into the nodes. The "key" part of the credentials is either a password or a private key. You have to inspect the value to determine this.

 if (node.getCredentials().key.startsWith("-----BEGIN RSA PRIVATE KEY-----"))
    // it is a private key, not a password.
 

Note. if all you want to do is execute a script at bootup, you should consider use of the runscript option.

If resources such as security groups are needed, they will be reused or created for you. Inbound port 22 will always be opened up.

Specified by:

createNodesInGroup in interface ComputeService

Parameters:

group - - common identifier to group nodes by, cannot contain hyphens

count - - how many to fire up.

template - - how to configure the nodes

Returns:

all of the nodes the api was able to launch in a running state.

Throws:

RunNodesException - when there's a problem applying options to nodes. Note that successful and failed nodes are a part of this exception, so be sure to inspect this carefully.

createNodesInGroup

public Set<? extends NodeMetadata> createNodesInGroup(String group,
                                             int count,
                                             TemplateOptions templateOptions)
                                               throws RunNodesException

Description copied from interface: ComputeService

Like ComputeService.createNodesInGroup(String,int,Template), except that the template is default, equivalent to templateBuilder().any().options(templateOptions).

Specified by:

createNodesInGroup in interface ComputeService

Throws:

RunNodesException

createNodesInGroup

public Set<? extends NodeMetadata> createNodesInGroup(String group,
                                             int count)
                                               throws RunNodesException

Description copied from interface: ComputeService

Like ComputeService.createNodesInGroup(String,int,TemplateOptions), except that the options are default, as specified in ComputeService.templateOptions().

Specified by:

createNodesInGroup in interface ComputeService

Throws:

RunNodesException

destroyNode

public void destroyNode(String id)

destroy the node, given its id. If it is the only node in a tag set, the dependent resources will also be destroyed.

Specified by:

destroyNode in interface ComputeService

destroyNodesMatching

public Set<? extends NodeMetadata> destroyNodesMatching(com.google.common.base.Predicate<NodeMetadata> filter)

nodes matching the filter are treated as a logical set. Using the delete command, you can save time by removing the nodes in parallel. When the last node in a set is destroyed, any indirect resources it uses, such as keypairs, are also destroyed.

Specified by:

destroyNodesMatching in interface ComputeService

Returns:

list of nodes destroyed

doDestroyNode

@Nullable
protected NodeMetadata doDestroyNode(String id)

Parameters:

id -

Returns:

node that was deleted or null if it wasn't found

cleanUpIncidentalResourcesOfDeadNodes

protected void cleanUpIncidentalResourcesOfDeadNodes(Set<? extends NodeMetadata> deadNodes)

listNodes

public Set<ComputeMetadata> listNodes()

all nodes available to the current user by id. If possible, the returned set will include NodeMetadata objects.

Specified by:

listNodes in interface ComputeService

listNodesDetailsMatching

public Set<? extends NodeMetadata> listNodesDetailsMatching(com.google.common.base.Predicate<ComputeMetadata> filter)

get all nodes including details such as image and ip addresses even if it incurs extra requests to the service.

Specified by:

listNodesDetailsMatching in interface ComputeService

Parameters:

filter - how to select the nodes you are interested in details on.

listHardwareProfiles

public Set<? extends Hardware> listHardwareProfiles()

The list hardware profiles command shows you the options including virtual cpu count, memory, and disks. cpu count is not a portable quantity across clouds, as they are measured differently. However, it is a good indicator of relative speed within a cloud. memory is measured in megabytes and disks in gigabytes.

Specified by:

listHardwareProfiles in interface ComputeService

Returns:

a map of hardware profiles by ID, conceding that in some clouds the "id" is not used.

listImages

public Set<? extends Image> listImages()

Images define the operating system and metadata related to a node. In some clouds, Images are bound to a specific region, and their identifiers are different across these regions. For this reason, you should consider matching image requirements like operating system family with TemplateBuilder as opposed to choosing an image explicitly. The getImages() command returns a map of images by id.

Specified by:

listImages in interface ComputeService

listAssignableLocations

public Set<? extends Location> listAssignableLocations()

The list locations command returns all the valid locations for nodes. A location has a scope, which is typically region or zone. A region is a general area, like eu-west, where a zone is similar to a datacenter. If a location has a parent, that implies it is within that location. For example a location can be a rack, whose parent is likely to be a zone.

Specified by:

listAssignableLocations in interface ComputeService

templateBuilder

public TemplateBuilder templateBuilder()

Makes a new template builder for this service

Specified by:

templateBuilder in interface ComputeService

getNodeMetadata

public NodeMetadata getNodeMetadata(String id)

Find a node by its id.

Specified by:

getNodeMetadata in interface ComputeService

rebootNode

public void rebootNode(String id)

reboot the node, given its id.

Specified by:

rebootNode in interface ComputeService

rebootNodesMatching

public void rebootNodesMatching(com.google.common.base.Predicate<NodeMetadata> filter)

nodes matching the filter are treated as a logical set. Using this command, you can save time by rebooting the nodes in parallel.

Specified by:

rebootNodesMatching in interface ComputeService

resumeNode

public void resumeNode(String id)

resume the node from suspended state, given its id.

note

affected nodes may not resume with the same IP address(es)

Specified by:

resumeNode in interface ComputeService

resumeNodesMatching

public void resumeNodesMatching(com.google.common.base.Predicate<NodeMetadata> filter)

nodes matching the filter are treated as a logical set. Using the resume command, you can save time by resumeing the nodes in parallel.

note

affected nodes may not resume with the same IP address(es)

Specified by:

resumeNodesMatching in interface ComputeService

suspendNode

public void suspendNode(String id)

suspend the node, given its id. This will result in suspended state.

note

affected nodes may not resume with the same IP address(es)

Specified by:

suspendNode in interface ComputeService

suspendNodesMatching

public void suspendNodesMatching(com.google.common.base.Predicate<NodeMetadata> filter)

nodes matching the filter are treated as a logical set. Using the suspend command, you can save time by suspending the nodes in parallel.

note

affected nodes may not resume with the same IP address(es)

Specified by:

suspendNodesMatching in interface ComputeService

runScriptOnNodesMatching

public Map<NodeMetadata,ExecResponse> runScriptOnNodesMatching(com.google.common.base.Predicate<NodeMetadata> filter,
                                                      String runScript)
                                                        throws RunScriptOnNodesException

Specified by:

runScriptOnNodesMatching in interface ComputeService

Throws:

RunScriptOnNodesException

See Also:

ComputeService.runScriptOnNodesMatching(Predicate, Statement, RunScriptOptions)

runScriptOnNodesMatching

public Map<NodeMetadata,ExecResponse> runScriptOnNodesMatching(com.google.common.base.Predicate<NodeMetadata> filter,
                                                      Statement runScript)
                                                        throws RunScriptOnNodesException

Specified by:

runScriptOnNodesMatching in interface ComputeService

Throws:

RunScriptOnNodesException

See Also:

ComputeService.runScriptOnNodesMatching(Predicate, Statement, RunScriptOptions)

runScriptOnNodesMatching

public Map<? extends NodeMetadata,ExecResponse> runScriptOnNodesMatching(com.google.common.base.Predicate<NodeMetadata> filter,
                                                                String runScript,
                                                                RunScriptOptions options)
                                                                  throws RunScriptOnNodesException

Specified by:

runScriptOnNodesMatching in interface ComputeService

Throws:

RunScriptOnNodesException

See Also:

ComputeService.runScriptOnNodesMatching(Predicate, Statement, RunScriptOptions)

runScriptOnNodesMatching

public Map<NodeMetadata,ExecResponse> runScriptOnNodesMatching(com.google.common.base.Predicate<NodeMetadata> filter,
                                                      Statement runScript,
                                                      RunScriptOptions options)
                                                        throws RunScriptOnNodesException

Run the script on all nodes with the specific predicate.

Specified by:

runScriptOnNodesMatching in interface ComputeService

Parameters:

filter - Predicate-based filter to define on which nodes the script is to be executed

runScript - statement containing the script to run

options - nullable options to how to run the script, whether to override credentials

Returns:

map with node identifiers and corresponding responses

Throws:

RunScriptOnNodesException - if anything goes wrong during script execution

See Also:

NodePredicates.runningInGroup(String), Statements

runScriptOnNode

public ExecResponse runScriptOnNode(String id,
                           String runScript)

Specified by:

runScriptOnNode in interface ComputeService

See Also:

ComputeService.runScriptOnNode(String, String, RunScriptOptions)

runScriptOnNode

public ExecResponse runScriptOnNode(String id,
                           String runScript,
                           RunScriptOptions options)

Specified by:

runScriptOnNode in interface ComputeService

See Also:

ComputeService.runScriptOnNode(String, Statement, RunScriptOptions), Statements.exec(java.lang.String)

runScriptOnNode

public ExecResponse runScriptOnNode(String id,
                           Statement runScript)

Specified by:

runScriptOnNode in interface ComputeService

See Also:

ComputeService.runScriptOnNode(String, Statement, RunScriptOptions)

runScriptOnNode

public ExecResponse runScriptOnNode(String id,
                           Statement runScript,
                           RunScriptOptions options)

Run the script on a specific node

Specified by:

runScriptOnNode in interface ComputeService

Parameters:

id - node the script is to be executed on

runScript - statement containing the script to run

options - nullable options to how to run the script, whether to override credentials

Returns:

map with node identifiers and corresponding responses

See Also:

NodePredicates.runningInGroup(String), Statements

submitScriptOnNode

public com.google.common.util.concurrent.ListenableFuture<ExecResponse> submitScriptOnNode(String id,
                                                                                  Statement runScript,
                                                                                  RunScriptOptions options)

Run the script on a specific node in the background, typically as nohup

Specified by:

submitScriptOnNode in interface ComputeService

Parameters:

id - node the script is to be executed on

runScript - statement containing the script to run

options - nullable options to how to run the script, whether to override credentials

Returns:

map with node identifiers and corresponding responses

See Also:

NodePredicates.runningInGroup(String), Statements

templateOptions

public TemplateOptions templateOptions()

Description copied from interface: ComputeService

Makes a new set of options for running nodes

Specified by:

templateOptions in interface ComputeService

updateNodeWithCredentialsIfPresent

protected NodeMetadata updateNodeWithCredentialsIfPresent(NodeMetadata node,
                                              RunScriptOptions options)