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<pre><span class="sourceLineNo">001</span>package org.junit.experimental.theories;<a name="line.1"></a>
<span class="sourceLineNo">002</span><a name="line.2"></a>
<span class="sourceLineNo">003</span>import java.lang.annotation.Annotation;<a name="line.3"></a>
<span class="sourceLineNo">004</span>import java.lang.reflect.Constructor;<a name="line.4"></a>
<span class="sourceLineNo">005</span>import java.lang.reflect.Method;<a name="line.5"></a>
<span class="sourceLineNo">006</span>import java.util.ArrayList;<a name="line.6"></a>
<span class="sourceLineNo">007</span>import java.util.Arrays;<a name="line.7"></a>
<span class="sourceLineNo">008</span>import java.util.Collections;<a name="line.8"></a>
<span class="sourceLineNo">009</span>import java.util.HashMap;<a name="line.9"></a>
<span class="sourceLineNo">010</span>import java.util.List;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import java.util.Map;<a name="line.11"></a>
<span class="sourceLineNo">012</span><a name="line.12"></a>
<span class="sourceLineNo">013</span>public class ParameterSignature {<a name="line.13"></a>
<span class="sourceLineNo">014</span> <a name="line.14"></a>
<span class="sourceLineNo">015</span> private static final Map<Class<?>, Class<?>> CONVERTABLE_TYPES_MAP = buildConvertableTypesMap();<a name="line.15"></a>
<span class="sourceLineNo">016</span> <a name="line.16"></a>
<span class="sourceLineNo">017</span> private static Map<Class<?>, Class<?>> buildConvertableTypesMap() {<a name="line.17"></a>
<span class="sourceLineNo">018</span> Map<Class<?>, Class<?>> map = new HashMap<Class<?>, Class<?>>();<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span> putSymmetrically(map, boolean.class, Boolean.class);<a name="line.20"></a>
<span class="sourceLineNo">021</span> putSymmetrically(map, byte.class, Byte.class);<a name="line.21"></a>
<span class="sourceLineNo">022</span> putSymmetrically(map, short.class, Short.class);<a name="line.22"></a>
<span class="sourceLineNo">023</span> putSymmetrically(map, char.class, Character.class);<a name="line.23"></a>
<span class="sourceLineNo">024</span> putSymmetrically(map, int.class, Integer.class);<a name="line.24"></a>
<span class="sourceLineNo">025</span> putSymmetrically(map, long.class, Long.class);<a name="line.25"></a>
<span class="sourceLineNo">026</span> putSymmetrically(map, float.class, Float.class);<a name="line.26"></a>
<span class="sourceLineNo">027</span> putSymmetrically(map, double.class, Double.class);<a name="line.27"></a>
<span class="sourceLineNo">028</span><a name="line.28"></a>
<span class="sourceLineNo">029</span> return Collections.unmodifiableMap(map);<a name="line.29"></a>
<span class="sourceLineNo">030</span> }<a name="line.30"></a>
<span class="sourceLineNo">031</span> <a name="line.31"></a>
<span class="sourceLineNo">032</span> private static <T> void putSymmetrically(Map<T, T> map, T a, T b) {<a name="line.32"></a>
<span class="sourceLineNo">033</span> map.put(a, b);<a name="line.33"></a>
<span class="sourceLineNo">034</span> map.put(b, a);<a name="line.34"></a>
<span class="sourceLineNo">035</span> }<a name="line.35"></a>
<span class="sourceLineNo">036</span> <a name="line.36"></a>
<span class="sourceLineNo">037</span> public static ArrayList<ParameterSignature> signatures(Method method) {<a name="line.37"></a>
<span class="sourceLineNo">038</span> return signatures(method.getParameterTypes(), method<a name="line.38"></a>
<span class="sourceLineNo">039</span> .getParameterAnnotations());<a name="line.39"></a>
<span class="sourceLineNo">040</span> }<a name="line.40"></a>
<span class="sourceLineNo">041</span><a name="line.41"></a>
<span class="sourceLineNo">042</span> public static List<ParameterSignature> signatures(Constructor<?> constructor) {<a name="line.42"></a>
<span class="sourceLineNo">043</span> return signatures(constructor.getParameterTypes(), constructor<a name="line.43"></a>
<span class="sourceLineNo">044</span> .getParameterAnnotations());<a name="line.44"></a>
<span class="sourceLineNo">045</span> }<a name="line.45"></a>
<span class="sourceLineNo">046</span><a name="line.46"></a>
<span class="sourceLineNo">047</span> private static ArrayList<ParameterSignature> signatures(<a name="line.47"></a>
<span class="sourceLineNo">048</span> Class<?>[] parameterTypes, Annotation[][] parameterAnnotations) {<a name="line.48"></a>
<span class="sourceLineNo">049</span> ArrayList<ParameterSignature> sigs = new ArrayList<ParameterSignature>();<a name="line.49"></a>
<span class="sourceLineNo">050</span> for (int i = 0; i < parameterTypes.length; i++) {<a name="line.50"></a>
<span class="sourceLineNo">051</span> sigs.add(new ParameterSignature(parameterTypes[i],<a name="line.51"></a>
<span class="sourceLineNo">052</span> parameterAnnotations[i]));<a name="line.52"></a>
<span class="sourceLineNo">053</span> }<a name="line.53"></a>
<span class="sourceLineNo">054</span> return sigs;<a name="line.54"></a>
<span class="sourceLineNo">055</span> }<a name="line.55"></a>
<span class="sourceLineNo">056</span><a name="line.56"></a>
<span class="sourceLineNo">057</span> private final Class<?> type;<a name="line.57"></a>
<span class="sourceLineNo">058</span><a name="line.58"></a>
<span class="sourceLineNo">059</span> private final Annotation[] annotations;<a name="line.59"></a>
<span class="sourceLineNo">060</span><a name="line.60"></a>
<span class="sourceLineNo">061</span> private ParameterSignature(Class<?> type, Annotation[] annotations) {<a name="line.61"></a>
<span class="sourceLineNo">062</span> this.type = type;<a name="line.62"></a>
<span class="sourceLineNo">063</span> this.annotations = annotations;<a name="line.63"></a>
<span class="sourceLineNo">064</span> }<a name="line.64"></a>
<span class="sourceLineNo">065</span><a name="line.65"></a>
<span class="sourceLineNo">066</span> public boolean canAcceptValue(Object candidate) {<a name="line.66"></a>
<span class="sourceLineNo">067</span> return (candidate == null) ? !type.isPrimitive() : canAcceptType(candidate.getClass());<a name="line.67"></a>
<span class="sourceLineNo">068</span> }<a name="line.68"></a>
<span class="sourceLineNo">069</span><a name="line.69"></a>
<span class="sourceLineNo">070</span> public boolean canAcceptType(Class<?> candidate) {<a name="line.70"></a>
<span class="sourceLineNo">071</span> return type.isAssignableFrom(candidate) ||<a name="line.71"></a>
<span class="sourceLineNo">072</span> isAssignableViaTypeConversion(type, candidate);<a name="line.72"></a>
<span class="sourceLineNo">073</span> }<a name="line.73"></a>
<span class="sourceLineNo">074</span> <a name="line.74"></a>
<span class="sourceLineNo">075</span> public boolean canPotentiallyAcceptType(Class<?> candidate) {<a name="line.75"></a>
<span class="sourceLineNo">076</span> return candidate.isAssignableFrom(type) ||<a name="line.76"></a>
<span class="sourceLineNo">077</span> isAssignableViaTypeConversion(candidate, type) ||<a name="line.77"></a>
<span class="sourceLineNo">078</span> canAcceptType(candidate);<a name="line.78"></a>
<span class="sourceLineNo">079</span> }<a name="line.79"></a>
<span class="sourceLineNo">080</span><a name="line.80"></a>
<span class="sourceLineNo">081</span> private boolean isAssignableViaTypeConversion(Class<?> targetType, Class<?> candidate) {<a name="line.81"></a>
<span class="sourceLineNo">082</span> if (CONVERTABLE_TYPES_MAP.containsKey(candidate)) {<a name="line.82"></a>
<span class="sourceLineNo">083</span> Class<?> wrapperClass = CONVERTABLE_TYPES_MAP.get(candidate);<a name="line.83"></a>
<span class="sourceLineNo">084</span> return targetType.isAssignableFrom(wrapperClass);<a name="line.84"></a>
<span class="sourceLineNo">085</span> } else {<a name="line.85"></a>
<span class="sourceLineNo">086</span> return false;<a name="line.86"></a>
<span class="sourceLineNo">087</span> }<a name="line.87"></a>
<span class="sourceLineNo">088</span> }<a name="line.88"></a>
<span class="sourceLineNo">089</span><a name="line.89"></a>
<span class="sourceLineNo">090</span> public Class<?> getType() {<a name="line.90"></a>
<span class="sourceLineNo">091</span> return type;<a name="line.91"></a>
<span class="sourceLineNo">092</span> }<a name="line.92"></a>
<span class="sourceLineNo">093</span><a name="line.93"></a>
<span class="sourceLineNo">094</span> public List<Annotation> getAnnotations() {<a name="line.94"></a>
<span class="sourceLineNo">095</span> return Arrays.asList(annotations);<a name="line.95"></a>
<span class="sourceLineNo">096</span> }<a name="line.96"></a>
<span class="sourceLineNo">097</span><a name="line.97"></a>
<span class="sourceLineNo">098</span> public boolean hasAnnotation(Class<? extends Annotation> type) {<a name="line.98"></a>
<span class="sourceLineNo">099</span> return getAnnotation(type) != null;<a name="line.99"></a>
<span class="sourceLineNo">100</span> }<a name="line.100"></a>
<span class="sourceLineNo">101</span><a name="line.101"></a>
<span class="sourceLineNo">102</span> public <T extends Annotation> T findDeepAnnotation(Class<T> annotationType) {<a name="line.102"></a>
<span class="sourceLineNo">103</span> Annotation[] annotations2 = annotations;<a name="line.103"></a>
<span class="sourceLineNo">104</span> return findDeepAnnotation(annotations2, annotationType, 3);<a name="line.104"></a>
<span class="sourceLineNo">105</span> }<a name="line.105"></a>
<span class="sourceLineNo">106</span><a name="line.106"></a>
<span class="sourceLineNo">107</span> private <T extends Annotation> T findDeepAnnotation(<a name="line.107"></a>
<span class="sourceLineNo">108</span> Annotation[] annotations, Class<T> annotationType, int depth) {<a name="line.108"></a>
<span class="sourceLineNo">109</span> if (depth == 0) {<a name="line.109"></a>
<span class="sourceLineNo">110</span> return null;<a name="line.110"></a>
<span class="sourceLineNo">111</span> }<a name="line.111"></a>
<span class="sourceLineNo">112</span> for (Annotation each : annotations) {<a name="line.112"></a>
<span class="sourceLineNo">113</span> if (annotationType.isInstance(each)) {<a name="line.113"></a>
<span class="sourceLineNo">114</span> return annotationType.cast(each);<a name="line.114"></a>
<span class="sourceLineNo">115</span> }<a name="line.115"></a>
<span class="sourceLineNo">116</span> Annotation candidate = findDeepAnnotation(each.annotationType()<a name="line.116"></a>
<span class="sourceLineNo">117</span> .getAnnotations(), annotationType, depth - 1);<a name="line.117"></a>
<span class="sourceLineNo">118</span> if (candidate != null) {<a name="line.118"></a>
<span class="sourceLineNo">119</span> return annotationType.cast(candidate);<a name="line.119"></a>
<span class="sourceLineNo">120</span> }<a name="line.120"></a>
<span class="sourceLineNo">121</span> }<a name="line.121"></a>
<span class="sourceLineNo">122</span><a name="line.122"></a>
<span class="sourceLineNo">123</span> return null;<a name="line.123"></a>
<span class="sourceLineNo">124</span> }<a name="line.124"></a>
<span class="sourceLineNo">125</span><a name="line.125"></a>
<span class="sourceLineNo">126</span> public <T extends Annotation> T getAnnotation(Class<T> annotationType) {<a name="line.126"></a>
<span class="sourceLineNo">127</span> for (Annotation each : getAnnotations()) {<a name="line.127"></a>
<span class="sourceLineNo">128</span> if (annotationType.isInstance(each)) {<a name="line.128"></a>
<span class="sourceLineNo">129</span> return annotationType.cast(each);<a name="line.129"></a>
<span class="sourceLineNo">130</span> }<a name="line.130"></a>
<span class="sourceLineNo">131</span> }<a name="line.131"></a>
<span class="sourceLineNo">132</span> return null;<a name="line.132"></a>
<span class="sourceLineNo">133</span> }<a name="line.133"></a>
<span class="sourceLineNo">134</span>}<a name="line.134"></a>
</pre>
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