org.scijava.command
Interface CommandService

All Superinterfaces:

Comparable<Prioritized>, Contextual, Disposable, HasPluginInfo, Prioritized, PTService<Command>, RichPlugin, SciJavaPlugin, SciJavaService, Service

All Known Implementing Classes:

DefaultCommandService

public interface CommandService
extends PTService<Command>, SciJavaService

Interface for service that keeps track of available commands.

A command is a particular type of plugin that is also a Module; i.e., it is Runnable, with typed inputs and outputs.

The command service keeps a master index of all commands known to the system. It asks the PluginService for available commands, then takes care of registering them with the ModuleService.

Author:

Curtis Rueden

See Also:

SciJavaPlugin, ModuleService, PluginService

Method Summary

<C extends Command> CommandInfo	getCommand(Class<C> commandClass) Gets the first available command of the given class, or null if none.
CommandInfo	getCommand(String className) Gets the first available command of the given class name, or null if none.
List<CommandInfo>	getCommands() Gets the list of all available Commands).
<CT extends Command> List<CommandInfo>	getCommands(List<PluginInfo<CT>> plugins) Gets the list of Commands corresponding to the given plugins.
<C extends Command> List<CommandInfo>	getCommandsOfClass(Class<C> commandClass) Gets the list of commands of the given class.
List<CommandInfo>	getCommandsOfClass(String className) Gets the list of commands with the given class name.
<CT extends Command> List<CommandInfo>	getCommandsOfType(Class<CT> type) Gets the list of Commands of the given type.
EventService	getEventService()
ModuleService	getModuleService()
<C extends Command> Future<CommandModule>	run(Class<C> commandClass, boolean process, Map<String,Object> inputMap) Executes the first command of the given class.
<C extends Command> Future<CommandModule>	run(Class<C> commandClass, boolean process, Object... inputs) Executes the first command of the given class.
Future<CommandModule>	run(CommandInfo info, boolean process, Map<String,Object> inputMap) Executes the given command.
Future<CommandModule>	run(CommandInfo info, boolean process, Object... inputs) Executes the given command.
Future<CommandModule>	run(String className, boolean process, Map<String,Object> inputMap) Executes the first command of the given class name.
Future<CommandModule>	run(String className, boolean process, Object... inputs) Executes the first command of the given class name.

Methods inherited from interface org.scijava.plugin.PTService

getPlugins, getPluginService, getPluginType

Methods inherited from interface org.scijava.service.Service

initialize, registerEventHandlers

Methods inherited from interface org.scijava.Contextual

context, getContext, setContext

Methods inherited from interface org.scijava.Prioritized

getPriority, setPriority

Methods inherited from interface java.lang.Comparable

compareTo

Methods inherited from interface org.scijava.plugin.HasPluginInfo

getInfo, setInfo

Methods inherited from interface org.scijava.Disposable

dispose

Method Detail

getEventService

EventService getEventService()

getModuleService

ModuleService getModuleService()

getCommands

List<CommandInfo> getCommands()

Gets the list of all available Commands).

getCommands

<CT extends Command> List<CommandInfo> getCommands(List<PluginInfo<CT>> plugins)

Gets the list of Commands corresponding to the given plugins.

getCommand

<C extends Command> CommandInfo getCommand(Class<C> commandClass)

Gets the first available command of the given class, or null if none.

getCommand

CommandInfo getCommand(String className)

Gets the first available command of the given class name, or null if none.

getCommandsOfType

<CT extends Command> List<CommandInfo> getCommandsOfType(Class<CT> type)

Gets the list of Commands of the given type.

getCommandsOfClass

<C extends Command> List<CommandInfo> getCommandsOfClass(Class<C> commandClass)

Gets the list of commands of the given class.

Most classes will have only a single match, but some special classes (such as ImageJ's LegacyCommand) may match many entries.

NB: Classes are matched by strict equality, not assignability; subtypes of the specified class will not match. For this behavior, use getCommandsOfType(Class) on a common parent interface.

getCommandsOfClass

List<CommandInfo> getCommandsOfClass(String className)

Gets the list of commands with the given class name.

Most classes will have only a single match, but some special classes (such as ImageJ's LegacyCommand) may match many entries.

NB: Classes are matched by strict equality, not assignability; subtypes of the specified class will not match. For this behavior, use getCommandsOfType(Class) on a common parent interface.

run

Future<CommandModule> run(String className,
                          boolean process,
                          Object... inputs)

Executes the first command of the given class name.

If no command with the given class name is registered with the service, then a default one is created and then executed. This default command is not registered with the service for subsequent usage.

Parameters:

className - Class name of the command to execute.

process - If true, executes the command with pre- and postprocessing steps from all available PreprocessorPlugins and PostprocessorPlugins in the plugin index; if false, executes the command with no pre- or postprocessing. For more fine-grained control, see the ModuleService.run(org.scijava.module.ModuleInfo, boolean, java.lang.Object...) methods.

inputs - List of input parameter names and values. The expected order is in pairs: an input name followed by its value, for each desired input to populate. Leaving some inputs unpopulated is allowed. Passing the name of an input that is not valid for the plugin, or passing a value of a type incompatible with the associated input parameter, will issue an error and ignore that name/value pair.

Returns:

Future of the module instance being executed. Calling Future.get() will block until execution is complete.

run

Future<CommandModule> run(String className,
                          boolean process,
                          Map<String,Object> inputMap)

Executes the first command of the given class name.

If no command with the given class name is registered with the service, then a default one is created and then executed. This default command is not registered with the service for subsequent usage.

Parameters:

className - Class name of the command to execute.

process - If true, executes the command with pre- and postprocessing steps from all available PreprocessorPlugins and PostprocessorPlugins in the plugin index; if false, executes the command with no pre- or postprocessing. For more fine-grained control, see the ModuleService.run(org.scijava.module.ModuleInfo, boolean, java.lang.Object...) methods.

inputMap - Table of input parameter values, with keys matching the plugin's input parameter names. Passing a value of a type incompatible with the associated input parameter will issue an error and ignore that value.

Returns:

Future of the module instance being executed. Calling Future.get() will block until execution is complete.

run

<C extends Command> Future<CommandModule> run(Class<C> commandClass,
                                              boolean process,
                                              Object... inputs)

Executes the first command of the given class.

If no command of the given class is registered with the service, then a default one is created and then executed. This default command is not registered with the service for subsequent usage.

Type Parameters:

C - Class of the command to execute.

Parameters:

commandClass - Class object of the command to execute.

process - If true, executes the command with pre- and postprocessing steps from all available PreprocessorPlugins and PostprocessorPlugins in the plugin index; if false, executes the command with no pre- or postprocessing. For more fine-grained control, see the ModuleService.run(org.scijava.module.ModuleInfo, boolean, java.lang.Object...) methods.

inputs - List of input parameter names and values. The expected order is in pairs: an input name followed by its value, for each desired input to populate. Leaving some inputs unpopulated is allowed. Passing the name of an input that is not valid for the plugin, or passing a value of a type incompatible with the associated input parameter, will issue an error and ignore that name/value pair.

Returns:

Future of the module instance being executed. Calling Future.get() will block until execution is complete.

run

<C extends Command> Future<CommandModule> run(Class<C> commandClass,
                                              boolean process,
                                              Map<String,Object> inputMap)

Executes the first command of the given class.

If no command of the given class is registered with the service, then a default one is created and then executed. This default command is not registered with the service for subsequent usage.

Type Parameters:

C - Class of the command to execute.

Parameters:

commandClass - Class object of the command to execute.

process - If true, executes the command with pre- and postprocessing steps from all available PreprocessorPlugins and PostprocessorPlugins in the plugin index; if false, executes the command with no pre- or postprocessing. For more fine-grained control, see the ModuleService.run(org.scijava.module.ModuleInfo, boolean, java.lang.Object...) methods.

inputMap - Table of input parameter values, with keys matching the plugin's input parameter names. Passing a value of a type incompatible with the associated input parameter will issue an error and ignore that value.

Returns:

Future of the module instance being executed. Calling Future.get() will block until execution is complete.

run

Future<CommandModule> run(CommandInfo info,
                          boolean process,
                          Object... inputs)

Executes the given command.

Parameters:

info - The command to instantiate and run.

process - If true, executes the command with pre- and postprocessing steps from all available PreprocessorPlugins and PostprocessorPlugins in the plugin index; if false, executes the command with no pre- or postprocessing. For more fine-grained control, see the ModuleService.run(org.scijava.module.ModuleInfo, boolean, java.lang.Object...) methods.

inputs - List of input parameter names and values. The expected order is in pairs: an input name followed by its value, for each desired input to populate. Leaving some inputs unpopulated is allowed. Passing the name of an input that is not valid for the plugin, or passing a value of a type incompatible with the associated input parameter, will issue an error and ignore that name/value pair.

Returns:

Future of the module instance being executed. Calling Future.get() will block until execution is complete.

run

Future<CommandModule> run(CommandInfo info,
                          boolean process,
                          Map<String,Object> inputMap)

Executes the given command.

Parameters:

info - The command to instantiate and run.

process - If true, executes the command with pre- and postprocessing steps from all available PreprocessorPlugins and PostprocessorPlugins in the plugin index; if false, executes the command with no pre- or postprocessing. For more fine-grained control, see the ModuleService.run(org.scijava.module.ModuleInfo, boolean, java.lang.Object...) methods.

inputMap - Table of input parameter values, with keys matching the plugin's input parameter names. Passing a value of a type incompatible with the associated input parameter will issue an error and ignore that value.

Returns:

Future of the module instance being executed. Calling Future.get() will block until execution is complete.