com.arangodb.shaded.vertx.core.spi.launcher.DefaultCommandFactory Maven / Gradle / Ivy
/*
* Copyright (c) 2011-2019 Contributors to the Eclipse Foundation
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
* which is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
*/
package com.arangodb.shaded.vertx.core.spi.launcher;
import com.arangodb.shaded.vertx.core.cli.CLI;
import com.arangodb.shaded.vertx.core.cli.CommandLine;
import com.arangodb.shaded.vertx.core.cli.annotations.CLIConfigurator;
import com.arangodb.shaded.vertx.core.cli.impl.ReflectionUtils;
import java.util.function.Supplier;
/**
* Default implementation of {@link CommandFactory}. This implementation defines the {@link CLI} from the
* given {@link Command} implementation (by reading the annotation). Then, {@link Command} instance are
* created by calling an empty constructor on the given {@link Command} implementation.
*
* @author Clement Escoffier
*/
public class DefaultCommandFactory implements CommandFactory {
private final Class clazz;
private final Supplier supplier;
/**
* Creates a new {@link CommandFactory}.
*
* @param clazz the {@link Command} implementation
* @deprecated Please use {@link #DefaultCommandFactory(Class, Supplier)}
*/
@Deprecated
public DefaultCommandFactory(Class clazz) {
this(clazz, () -> ReflectionUtils.newInstance(clazz));
}
/**
* Creates a new {@link CommandFactory}.
*
* @param clazz the {@link Command} implementation
* @param supplier the {@link Command} implementation
*/
public DefaultCommandFactory(Class clazz, Supplier supplier) {
this.clazz = clazz;
this.supplier = supplier;
}
/**
* @return a new instance of the command by invoking the default constructor of the given class.
*/
@Override
public C create(CommandLine cl) {
return supplier.get();
}
/**
* @return the {@link CLI} instance by reading the annotation.
*/
@Override
public CLI define() {
return CLIConfigurator.define(clazz);
}
}