001/* 002 * Copyright 2012-2018 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.boot; 018 019import java.util.Arrays; 020import java.util.Collections; 021import java.util.HashSet; 022import java.util.List; 023import java.util.Set; 024 025import org.springframework.core.env.SimpleCommandLinePropertySource; 026import org.springframework.util.Assert; 027 028/** 029 * Default implementation of {@link ApplicationArguments}. 030 * 031 * @author Phillip Webb 032 * @since 1.4.1 033 */ 034public class DefaultApplicationArguments implements ApplicationArguments { 035 036 private final Source source; 037 038 private final String[] args; 039 040 public DefaultApplicationArguments(String[] args) { 041 Assert.notNull(args, "Args must not be null"); 042 this.source = new Source(args); 043 this.args = args; 044 } 045 046 @Override 047 public String[] getSourceArgs() { 048 return this.args; 049 } 050 051 @Override 052 public Set<String> getOptionNames() { 053 String[] names = this.source.getPropertyNames(); 054 return Collections.unmodifiableSet(new HashSet<>(Arrays.asList(names))); 055 } 056 057 @Override 058 public boolean containsOption(String name) { 059 return this.source.containsProperty(name); 060 } 061 062 @Override 063 public List<String> getOptionValues(String name) { 064 List<String> values = this.source.getOptionValues(name); 065 return (values != null) ? Collections.unmodifiableList(values) : null; 066 } 067 068 @Override 069 public List<String> getNonOptionArgs() { 070 return this.source.getNonOptionArgs(); 071 } 072 073 private static class Source extends SimpleCommandLinePropertySource { 074 075 Source(String[] args) { 076 super(args); 077 } 078 079 @Override 080 public List<String> getNonOptionArgs() { 081 return super.getNonOptionArgs(); 082 } 083 084 @Override 085 public List<String> getOptionValues(String name) { 086 return super.getOptionValues(name); 087 } 088 089 } 090 091}