DefaultApplicationArguments Class — spring-boot Architecture

Source Code

core/spring-boot/src/main/java/org/springframework/boot/DefaultApplicationArguments.java lines 36–93

public class DefaultApplicationArguments implements ApplicationArguments {

	private final Source source;

	private final String[] args;

	public DefaultApplicationArguments(String... args) {
		Assert.notNull(args, "'args' must not be null");
		this.source = new Source(args);
		this.args = args;
	}

	@Override
	public String[] getSourceArgs() {
		return this.args;
	}

	@Override
	public Set<String> getOptionNames() {
		String[] names = this.source.getPropertyNames();
		return Collections.unmodifiableSet(new HashSet<>(Arrays.asList(names)));
	}

	@Override
	public boolean containsOption(String name) {
		return this.source.containsProperty(name);
	}

	@Override
	public @Nullable List<String> getOptionValues(String name) {
		List<String> values = this.source.getOptionValues(name);
		return (values != null) ? Collections.unmodifiableList(values) : null;
	}

	@Override
	public List<String> getNonOptionArgs() {
		return this.source.getNonOptionArgs();
	}

	private static class Source extends SimpleCommandLinePropertySource {

		Source(String[] args) {
			super(args);
		}

		@Override
		public List<String> getNonOptionArgs() {
			return super.getNonOptionArgs();
		}

		@Override
		public @Nullable List<String> getOptionValues(String name) {
			return super.getOptionValues(name);
		}

	}

}