com.netflix.iep.spring.Args Maven / Gradle / Ivy
/*
* Copyright 2014-2024 Netflix, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.netflix.iep.spring;
import java.util.Arrays;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
/**
* This class can be injected to access the command line arguments passed to the
* {@link Main} instance.
*/
public class Args implements Iterable {
/**
* Create a new instance from an array of command line arguments.
*/
public static Args from(String[] args) {
return new Args(Arrays.asList(args));
}
private final List argv;
private Args(List argv) {
this.argv = argv;
}
/** Return the argument at the specified position. */
public String get(int i) {
return argv.get(i);
}
/** Return true if the list of arguments is empty. */
public boolean isEmpty() {
return argv.isEmpty();
}
/** Return number of command line arguments. */
public int size() {
return argv.size();
}
/** Return an array with a copy of the command line arguments. */
public String[] asArray() {
return argv.toArray(new String[0]);
}
@Override public Iterator iterator() {
return argv.iterator();
}
@Override public String toString() {
return String.join(" ", argv);
}
}