1 package com.lexicalscope.fluentreflection;
2
3 import static org.hamcrest.Matchers.contains;
4
5 import java.util.ArrayList;
6 import java.util.List;
7
8 import org.apache.commons.lang3.builder.EqualsBuilder;
9 import org.apache.commons.lang3.builder.HashCodeBuilder;
10 import org.hamcrest.Description;
11 import org.hamcrest.Matcher;
12
13 final class MatcherArgumentTypes extends ReflectionMatcher<FluentMember> {
14 private final List<Matcher<? super FluentClass<?>>> argumentTypeMatchers;
15
16 public MatcherArgumentTypes(final List<? extends Matcher<? super FluentClass<?>>> argumentTypeMatchers) {
17 this.argumentTypeMatchers = new ArrayList<Matcher<? super FluentClass<?>>>(argumentTypeMatchers);
18 }
19
20 @Override
21 protected boolean matchesSafely(final FluentMember item) {
22 final int actualArgumentCount = item.argCount();
23 final int expectedArgumentCount = argumentTypeMatchers.size();
24
25 if (actualArgumentCount != expectedArgumentCount) {
26 return false;
27 } else if (actualArgumentCount == 0 && expectedArgumentCount == 0) {
28 return true;
29 }
30
31 return contains(argumentTypeMatchers).matches(item.args());
32 }
33
34 @Override
35 public void describeTo(final Description description) {
36 description.appendText("callable with arguments ").appendList("(", ", ", ")", argumentTypeMatchers);
37 }
38
39 @Override
40 public final boolean equals(final Object that) {
41 if (that != null && that.getClass().equals(this.getClass())) {
42 return new EqualsBuilder()
43 .append(argumentTypeMatchers, ((MatcherArgumentTypes) that).argumentTypeMatchers)
44 .isEquals();
45 }
46 return false;
47 }
48
49 @Override
50 public final int hashCode() {
51 return new HashCodeBuilder().append(argumentTypeMatchers).toHashCode();
52 }
53 }