HandlerLookup.java

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package org.sanmibuh.ddd.infrastructure;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import org.springframework.aop.support.AopUtils;
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import org.springframework.core.GenericTypeResolver;
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public final class HandlerLookup<H> {
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  private final Map<Class<?>, H> index;
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  public HandlerLookup(final List<H> handlers, final Class<?> handlerInterface) {
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    final var map = new HashMap<Class<?>, H>();
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    for (final var handler : handlers) {
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      final var messageType =
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          resolveMessageType(AopUtils.getTargetClass(handler), handlerInterface);
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      final var existing = map.put(messageType, handler);
19 1 1. <init> : negated conditional → KILLED
 
      if (existing != null) {
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        throw new IllegalArgumentException(
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            "Duplicate handlers for message type: " + messageType.getName());
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      }
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    }
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    index = Map.copyOf(map);
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  }
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  private static Class<?> resolveMessageType(
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      final Class<?> handlerClass, final Class<?> handlerInterface) {
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    final var typeArgs = GenericTypeResolver.resolveTypeArguments(handlerClass, handlerInterface);
30 2 1. resolveMessageType : negated conditional → KILLED
2. resolveMessageType : negated conditional → KILLED
 
    if (typeArgs == null || typeArgs.length == 0) {
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      throw new IllegalArgumentException(
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          "Cannot resolve message type for: " + handlerClass.getName());
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    }
34 1 1. resolveMessageType : replaced return value with null for org/sanmibuh/ddd/infrastructure/HandlerLookup::resolveMessageType → KILLED
 
    return typeArgs[0];
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  }
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  public H find(final Class<?> messageType) {
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    final var handler = index.get(messageType);
39 1 1. find : negated conditional → KILLED
 
    if (handler == null) {
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      throw new HandlerNotFoundException(messageType);
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    }
42 1 1. find : replaced return value with null for org/sanmibuh/ddd/infrastructure/HandlerLookup::find → KILLED
 
    return handler;
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  }
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}

Mutations

19

1.1
Location : <init>
Killed by : org.sanmibuh.ddd.infrastructure.HandlerLookupTest.[engine:junit-jupiter]/[class:org.sanmibuh.ddd.infrastructure.HandlerLookupTest]/[method:should_returnHandler_whenMessageTypeIsRegistered()] negated conditional → KILLED

30

1.1
Location : resolveMessageType
Killed by : org.sanmibuh.ddd.infrastructure.HandlerLookupTest.[engine:junit-jupiter]/[class:org.sanmibuh.ddd.infrastructure.HandlerLookupTest]/[method:should_throwIllegalArgumentException_whenDuplicateHandlersForSameMessageType()] negated conditional → KILLED

2.2
Location : resolveMessageType
Killed by : org.sanmibuh.ddd.infrastructure.HandlerLookupTest.[engine:junit-jupiter]/[class:org.sanmibuh.ddd.infrastructure.HandlerLookupTest]/[method:should_throwIllegalArgumentException_whenDuplicateHandlersForSameMessageType()] negated conditional → KILLED

34

1.1
Location : resolveMessageType
Killed by : org.sanmibuh.ddd.infrastructure.HandlerLookupTest.[engine:junit-jupiter]/[class:org.sanmibuh.ddd.infrastructure.HandlerLookupTest]/[method:should_throwIllegalArgumentException_whenDuplicateHandlersForSameMessageType()] replaced return value with null for org/sanmibuh/ddd/infrastructure/HandlerLookup::resolveMessageType → KILLED

39

1.1
Location : find
Killed by : org.sanmibuh.ddd.infrastructure.HandlerLookupTest.[engine:junit-jupiter]/[class:org.sanmibuh.ddd.infrastructure.HandlerLookupTest]/[method:should_throwHandlerNotFoundException_whenNoHandlerRegistered()] negated conditional → KILLED

42

1.1
Location : find
Killed by : org.sanmibuh.ddd.infrastructure.HandlerLookupTest.[engine:junit-jupiter]/[class:org.sanmibuh.ddd.infrastructure.HandlerLookupTest]/[method:should_returnHandler_whenMessageTypeIsRegistered()] replaced return value with null for org/sanmibuh/ddd/infrastructure/HandlerLookup::find → KILLED

Active mutators

Tests examined


Report generated by PIT 1.30.0 support