Class Hierarchy

SocketServer.BaseServer: Base class for server classes.
- SocketServer.TCPServer: Base class for various socket-based server classes.
  - SimpleXMLRPCServer.SimpleXMLRPCServer: Simple XML-RPC server.
    - haizea.core.rpcserver.StoppableSimpleXMLRPCServer
logging.Filterer: A base class for loggers and handlers which allows them to share common code.
- logging.Logger: Instances of the Logger class represent a single logging channel.
  - haizea.core.log.HaizeaLogger
optparse.Option: Instance attributes: _short_opts : [string] _long_opts : [string]
- haizea.cli.optionparser.Option
optparse.OptionContainer: Abstract base class.
- optparse.OptionParser: Class attributes: standard_option_list : [Option] list of standard options that will be accepted by all instances of this parser class (intended to be overridden by subclasses).
  - haizea.cli.optionparser.OptionParser
SimpleXMLRPCServer.SimpleXMLRPCDispatcher: Mix-in class that dispatches XML-RPC requests.
- SimpleXMLRPCServer.SimpleXMLRPCServer: Simple XML-RPC server.
  - haizea.core.rpcserver.StoppableSimpleXMLRPCServer
object: The most base type
- haizea.core.accounting.AccountingData: A container for all the accounting data.
- haizea.core.accounting.AccountingDataCollection: Accounting data collection
- haizea.core.accounting.AccountingProbe: Base class for accounting probes
  - haizea.pluggable.accounting.leases.ARProbe: Collects information from Advance Reservation leases
  - haizea.pluggable.accounting.leases.BEProbe: Collects information from best-effort leases
  - haizea.pluggable.accounting.utilization.CPUUtilizationProbe: Collects information on CPU utilization
  - haizea.pluggable.accounting.utilization.DiskUsageProbe: Collects information on disk usage
  - haizea.pluggable.accounting.leases.IMProbe: Collects information from immediate leases
- haizea.core.scheduler.slottable.AvailEntry
- haizea.core.scheduler.slottable.AvailabilityWindow: An availability window
- exceptions.BaseException: Common base class for all exceptions
  - exceptions.Exception: Common base class for all non-exit exceptions.
    - haizea.common.config.ConfigException: A simple exception class used for configuration exceptions
    - haizea.common.utils.InvalidStateMachineTransition
    - haizea.core.scheduler.SchedException: The base class for scheduling exceptions
      - haizea.core.scheduler.CancelLeaseException
      - haizea.core.scheduler.NormalEndLeaseException
      - haizea.core.scheduler.NotSchedulableException: A simple exception class used when a lease cannot be scheduled
      - haizea.core.scheduler.RescheduleLeaseException
    - haizea.core.scheduler.SchedulingError: The base class for scheduling errors
- haizea.core.leases.Capacity: A quantity of resources
- haizea.core.scheduler.slottable.ChangepointAvail
- haizea.core.scheduler.slottable.ChangepointNodeAvail
- haizea.core.manager.Clock: Base class for the resource manager's clock.
  - haizea.core.manager.RealClock: A realtime clock.
  - haizea.core.manager.SimulatedClock: Simulates the passage of time...
- haizea.cli.Command
  - haizea.cli.rpc_commands.RPCCommand
    - haizea.cli.rpc_commands.haizea_cancel_lease: Cancel a lease.
    - haizea.cli.rpc_commands.haizea_list_hosts: List hosts managed by Haizea
    - haizea.cli.rpc_commands.haizea_list_leases: List all active leases in the system (i.e., not including completed or cancelled leases)
    - haizea.cli.rpc_commands.haizea_request_lease: Requests a new lease.
    - haizea.cli.rpc_commands.haizea_show_queue: Show the contents of the Haizea queue
  - haizea.cli.commands.haizea: This is the main Haizea command.
  - haizea.cli.commands.haizea_convert_data: Converts Haizea datafiles into another (easier to process) format.
  - haizea.cli.commands.haizea_generate_configs: Takes an Haizea multiconfiguration file and generates the individual configuration files.
  - haizea.cli.commands.haizea_generate_scripts: Generates a script, based on a script template, to run all the individual configuration files generated by haizea-generate-configs.
  - haizea.cli.commands.haizea_lwf2xml: Converts old Haizea LWF file into new XML-based LWF format
- haizea.common.config.Config
  - haizea.core.configfile.HaizeaConfig
  - haizea.core.configfile.HaizeaMultiConfig
- haizea.common.stats.ContinuousDistributionBase
  - haizea.common.stats.ContinuousNormalDistribution
  - haizea.common.stats.ContinuousParetoDistribution
  - haizea.common.stats.ContinuousUniformDistribution
- haizea.core.enact.DeploymentEnactment
  - haizea.core.enact.opennebula.OpenNebulaDummyDeploymentEnactment
  - haizea.core.enact.simulated.SimulatedDeploymentEnactment
- haizea.common.stats.DiscreteDistributionBase
  - haizea.common.stats.DiscreteDistribution
  - haizea.common.stats.DiscreteUniformDistribution
- haizea.core.leases.Duration: A duration
- haizea.core.scheduler.EarliestStartingTime
  - haizea.core.scheduler.preparation_schedulers.imagetransfer.ImageTransferEarliestStartingTime
- haizea.core.enact.actions.EnactmentAction
  - haizea.core.enact.actions.VMEnactmentAction
- haizea.core.scheduler.resourcepool.File
  - haizea.core.scheduler.resourcepool.DiskImageFile
  - haizea.core.scheduler.resourcepool.RAMImageFile
  - haizea.core.scheduler.resourcepool.ReusableDiskImageFile
- haizea.core.scheduler.policy.HostSelectionPolicy: Host Selection policy
  - haizea.pluggable.policies.host_selection.GreedyPolicy: A greedy host selection policy.
  - haizea.pluggable.policies.host_selection.NoPolicy: A simple host selection policy: all hosts have the same score
- haizea.core.scheduler.slottable.KeyValueWrapper: A wrapper around ResourceReservations so we can use the bisect module to manage ordered lists of reservations.
- haizea.core.leases.Lease: A resource lease
- haizea.core.scheduler.policy.LeaseAdmissionPolicy: Lease Admission policy
  - haizea.pluggable.policies.admission.AcceptAllPolicy: A simple admission policy: all lease requests are accepted.
  - haizea.pluggable.policies.admission.NoARsPolicy: A simple admission policy: all lease requests, except AR requests, are accepted.
- haizea.core.scheduler.lease_scheduler.LeaseScheduler: The Haizea Lease Scheduler
- haizea.core.scheduler.lease_scheduler.LeaseTable: A simple container for leases
- haizea.core.leases.LeaseWorkload: Reprents a sequence of lease requests.
- haizea.core.manager.Manager: The root of Haizea
- haizea.core.scheduler.mapper.Mapper: Base class for mappers
  - haizea.core.scheduler.mapper.GreedyMapper: Haizea's default greedy mapper
- haizea.core.scheduler.slottable.Node: A physical node in the slot table.
- haizea.core.leases.Nodes: Represents a collection of machines ("nodes")
- haizea.core.scheduler.slottable.OngoingAvailability: Information about ongoing availability in a node
- haizea.core.frontends.opennebula.OpenNebulaHaizeaVM
- haizea.common.opennebula_xmlrpc.OpenNebulaHost
- haizea.common.opennebula_xmlrpc.OpenNebulaVM
- haizea.common.opennebula_xmlrpc.OpenNebulaXMLRPCClient
- haizea.common.utils.OpenNebulaXMLRPCClientSingleton
- haizea.common.config.Option
- haizea.core.manager.PersistenceManager: Persistence manager.
- haizea.core.scheduler.policy.PolicyManager: The Policy Manager
- haizea.core.scheduler.policy.PreemptabilityPolicy: Lease Preemptability policy
  - haizea.pluggable.policies.preemption.ARPreemptsEverythingPolicy: A simple preemption policy where AR leases can always preempt every other type of lease.
  - haizea.pluggable.policies.preemption.NoPreemptionPolicy: Simple preemption policy: preemption is never allowed.
- haizea.core.scheduler.preparation_schedulers.PreparationScheduler
  - haizea.core.scheduler.preparation_schedulers.imagetransfer.ImageTransferPreparationScheduler
  - haizea.core.scheduler.preparation_schedulers.unmanaged.UnmanagedPreparationScheduler
- haizea.core.scheduler.lease_scheduler.Queue: A simple queue for leases
- haizea.core.rpcserver.RPCServer
- haizea.core.frontends.RequestFrontend
  - haizea.core.frontends.opennebula.OpenNebulaFrontend
  - haizea.core.frontends.rpc.RPCFrontend
  - haizea.core.frontends.tracefile.TracefileFrontend
- haizea.core.scheduler.ReservationEventHandler: A wrapper for reservation event handlers.
- haizea.core.scheduler.resourcepool.ResourcePool
  - haizea.core.scheduler.resourcepool.ResourcePoolWithReusableImages
- haizea.core.enact.ResourcePoolInfo
  - haizea.core.enact.opennebula.OpenNebulaResourcePoolInfo
  - haizea.core.enact.simulated.SimulatedResourcePoolInfo
- haizea.core.scheduler.resourcepool.ResourcePoolNode
  - haizea.core.scheduler.resourcepool.ResourcePoolNodeWithReusableImages
- haizea.core.scheduler.slottable.ResourceReservation: A resource reservation
  - haizea.core.scheduler.preparation_schedulers.imagetransfer.FileTransferResourceReservation
  - haizea.core.scheduler.MigrationResourceReservation
    - haizea.core.scheduler.preparation_schedulers.imagetransfer.DiskImageMigrationResourceReservation
    - haizea.core.scheduler.vm_scheduler.MemImageMigrationResourceReservation
  - haizea.core.scheduler.vm_scheduler.ResumptionResourceReservation
  - haizea.core.scheduler.vm_scheduler.ShutdownResourceReservation
  - haizea.core.scheduler.vm_scheduler.SuspensionResourceReservation
  - haizea.core.scheduler.vm_scheduler.VMResourceReservation
- haizea.core.scheduler.slottable.ResourceTuple: A resource tuple
- haizea.common.config.Section
- haizea.core.leases.Site: Represents a site containing machines ("nodes").
- haizea.core.scheduler.slottable.SlotTable: Slot table
- haizea.core.leases.SoftwareEnvironment: The base class for a lease's software environment
  - haizea.core.leases.DiskImageSoftwareEnvironment: Reprents a software environment encapsulated in a disk image.
  - haizea.core.leases.UnmanagedSoftwareEnvironment: Represents an "unmanaged" software environment.
- haizea.common.utils.StateMachine
  - haizea.core.leases.LeaseStateMachine: A lease state machine
- haizea.core.leases.Timestamp: An exact point in time.
- haizea.core.enact.VMEnactment
  - haizea.core.enact.opennebula.OpenNebulaVMEnactment
  - haizea.core.enact.simulated.SimulatedVMEnactment
- haizea.core.scheduler.vm_scheduler.VMScheduler: The Haizea VM Scheduler
- haizea.core.enact.actions.VNode
- type: type(object) -> the object's type type(name, bases, dict) -> a new type
  - haizea.common.utils.Singleton: A singleton metaclass.