Package org.apache.ignite.internal.management.api

Class CommandInvoker<A extends IgniteDataTransferObject>

java.lang.Object

org.apache.ignite.internal.management.api.CommandInvoker<A>

public class CommandInvoker<A extends IgniteDataTransferObject>
extends Object

Command invoker.

Field Summary

Fields

Modifier and Type	Field	Description
protected A	arg	Parsed argument.
protected Command<A,?>	cmd	Command to execute.

Constructor Summary

Constructors

Constructor	Description
CommandInvoker(Command<A,?> cmd, A arg, @Nullable IgniteEx ignite)

Method Summary

Modifier and Type	Method	Description
protected @Nullable GridClient	client()
protected GridClientNode	defaultNode()
protected @Nullable IgniteClient	igniteClient()
<R> R	invoke(Consumer<String> printer, boolean verbose)	Actual command execution with verbose mode if required.
boolean	prepare(Consumer<String> printer)

Methods inherited from class java.lang.Object

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

Field Detail

cmd

protected final Command<A extends IgniteDataTransferObject,?> cmd

Command to execute.

arg

protected final A extends IgniteDataTransferObject arg

Parsed argument.

Constructor Detail

CommandInvoker

public CommandInvoker(Command<A,?> cmd,
                      A arg,
                      @Nullable
                      @Nullable IgniteEx ignite)

Parameters:

cmd - Command to execute.

arg - Argument

ignite - Optional ignite instance.

Method Detail

prepare

public boolean prepare(Consumer<String> printer)
                throws Exception

Parameters:

printer - Result printer.

Returns:

True of command successfully prepared and can be invoked, false otherwise.

Throws:

GridClientException - If failed.

Exception

invoke

public <R> R invoke(Consumer<String> printer,
                    boolean verbose)
             throws Exception

Actual command execution with verbose mode if required.

Parameters:

printer - Result printer.

verbose - Use verbose mode or not

Returns:

Result of operation (mostly usable for tests).

Throws:

Exception - If failed.

defaultNode

protected GridClientNode defaultNode()
                              throws GridClientException

Returns:

Default node to execute commands.

Throws:

GridClientException

client

@Nullable
protected @Nullable GridClient client()
                               throws GridClientException

Returns:

Grid thin client instance which is already connected to cluster.

Throws:

GridClientException - If failed.

igniteClient

@Nullable
protected @Nullable IgniteClient igniteClient()

Returns:

Ignite client instance.