Ant style pattern 정리

웹 개발을 진행하다 보면 대부분 url mapping 설정을 ant pattern으로 한다.

스프링에서 mvc:resources mapping="/static/**" 또는 security:intercept-url pattern="/user/**" 이 그러하다. 설정에 대한 표현식으로 ant pattern을 사용하기 때문에 *, **, ? 의 의미를 확실히 알아둘 필요가 있다.

? : 1개의 문자와 매칭 (matches single character)

* : 0개 이상의 문자와 매칭 (matches zero or more characters)

** : 0개 이상의 디렉토리와 파일 매칭 (matches all files / directories)

	import static org.hamcrest.CoreMatchers.*;
	import static org.junit.Assert.*;
	import org.junit.Test;
	import org.springframework.util.AntPathMatcher;
	public class AntStylePatternMatcherUtilTest {
	@Test
	public void antStylePatternTest() {
	// double asterisks
	assertThat(true, is(checkAntPattern("/static/**", "/static/a.jpg")));
	assertThat(true, is(checkAntPattern("/static/**", "/static/css/a.css")));
	assertThat(true, is(checkAntPattern("/static/**", "/static/js/a.js")));
	assertThat(true, is(checkAntPattern("/static/**", "/static/img/a.jpg")));
	assertThat(true, is(checkAntPattern("/static/**", "/static/a/b/c/d/e/f/g/a.jpg")));
	assertThat(true, is(checkAntPattern("/static/**", "/static")));
	assertThat(true, is(checkAntPattern("/static/**", "/static/")));
	// single asterisks
	assertThat(true, is(checkAntPattern("/static/*", "/static/a.jpg")));
	assertThat(true, is(checkAntPattern("/static/*", "/static/namkyuProfilePicture.jpg")));
	assertThat(false, is(checkAntPattern("/static/*", "/static/a/test.jpg")));
	assertThat(false, is(checkAntPattern("/static/*", "/static/a/b/c/d/test.jpg")));
	assertThat(true, is(checkAntPattern("/static*/*", "/static/test.jpg")));
	assertThat(true, is(checkAntPattern("/static*/*", "/static1/test.jpg")));
	assertThat(true, is(checkAntPattern("/static*/*", "/static123/test.jpg")));
	assertThat(true, is(checkAntPattern("/static*/*", "/static-123/test.jpg")));
	assertThat(true, is(checkAntPattern("/static*/*", "/static~!@#$%^&*()_+}{|/test.jpg")));
	assertThat(false, is(checkAntPattern("/static*/*", "/static12/a/test.jpg")));
	assertThat(false, is(checkAntPattern("/static*/*", "/static12/a/b/test.jpg")));
	// double and single combine
	assertThat(true, is(checkAntPattern("/static*/**", "/static/a.jpg")));
	assertThat(true, is(checkAntPattern("/static*/**", "/static1/a.jpg")));
	assertThat(true, is(checkAntPattern("/static*/**", "/static/a/a.jpg")));
	assertThat(true, is(checkAntPattern("/static*/**", "/static/a/b/a.jpg")));
	assertThat(true, is(checkAntPattern("/static*/**", "/static/a/b/c/a.jpg")));
	assertThat(true, is(checkAntPattern("**/static/**", "a/static/a/b/c/a.jpg")));
	assertThat(true, is(checkAntPattern("**/static/**", "a/b/static/a/b/c/a.jpg")));
	// question-mark
	assertThat(true, is(checkAntPattern("/static-?/**", "/static-a/a.jpg")));
	assertThat(true, is(checkAntPattern("/static-?/**", "/static-a/b/c/a.jpg")));
	assertThat(true, is(checkAntPattern("/static-?/*", "/static-a/abcd.jpg")));
	assertThat(true, is(checkAntPattern("/static-?/???.jpg", "/static-a/abc.jpg")));
	}
	private boolean checkAntPattern(String pattern, String inputStr) {
	return matches(pattern, inputStr);
	}
	public static boolean matches(String pattern, String inputStr) {
	AntPathMatcher antPathMatcher = new AntPathMatcher();
	return antPathMatcher.match(pattern, inputStr);
	}
	}

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