package org.hamcrest.core;

import org.hamcrest.Description;
import org.hamcrest.DiagnosingMatcher;
import org.hamcrest.Matcher;

import java.util.Arrays;

/**
 
* Calculates the logical conjunction of multiple matchers. Evaluation is shortcut, so
 
* subsequent matchers are not called if an earlier matcher returns <code>false</code>.
 
*/

public class AllOf<T> extends DiagnosingMatcher<T> {

    
private final Iterable<Matcher<? super T>> matchers;

    
@SafeVarargs
    
public AllOf(Matcher<? super T> ... matchers) {
        
this(Arrays.asList(matchers));
    
}

    
public AllOf(Iterable<Matcher<? super T>> matchers) {
        
this.matchers = matchers;
    
}

    
@Override
    
public boolean matches(Object o, Description mismatch) {
        
for (Matcher<? super T> matcher : matchers) {
            
if (!matcher.matches(o)) {
                
mismatch.appendDescriptionOf(matcher).appendText(" ");
                
matcher.describeMismatch(o, mismatch);
              
return false;
            
}
        
}
        
return true;
    
}

    
@Override
    
public void describeTo(Description description) {
        
description.appendList("(", " " + "and" + " ", ")", matchers);
    
}

    
/**
     
* Creates a matcher that matches if the examined object matches <b>ALL</b> of the specified matchers.
     
* For example:
     
* <pre>assertThat("myValue", allOf(startsWith("my"), containsString("Val")))</pre>
     
*/

    
public static <T> Matcher<T> allOf(Iterable<Matcher<? super T>> matchers) {
        
return new AllOf<>(matchers);
    
}

    
/**
     
* Creates a matcher that matches if the examined object matches <b>ALL</b> of the specified matchers.
     
* For example:
     
* <pre>assertThat("myValue", allOf(startsWith("my"), containsString("Val")))</pre>
     
*/

    
@SafeVarargs
    
public static <T> Matcher<T> allOf(Matcher<? super T>... matchers) {
        
return allOf(Arrays.asList(matchers));
    
}
}