got arrays working

src/main/java/nl/sander/jsontoy2/JavaObjectReaderFactory.java

@@ -7,6 +7,7 @@ import org.jetbrains.annotations.NotNull;
 
 import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
+import java.util.List;
 import java.util.Set;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -52,7 +53,7 @@ public class JavaObjectReaderFactory {
     private static CtMethod createReadJsonMethod(CtClass serializerClass, Class<?> type) {
         try {
             String readMethodBodySource = createReadMethodBodySource(type);
-//            System.out.println(readMethodBodySource);
+            System.out.println(readMethodBodySource);
             return CtNewMethod.make(Modifier.PUBLIC, OBJECT_CLASS, "read", PARSER_PARAM, NO_EXCEPTIONS, readMethodBodySource, serializerClass);
         } catch (CannotCompileException e) {
             throw new ClassCreationException(e);
@@ -99,12 +100,23 @@ public class JavaObjectReaderFactory {
             return "getFloat(\"" + fieldName + "\",object)";
         } else if (fieldType == double.class) {
             return "getDouble(\"" + fieldName + "\",object)";
-        } else if (Set.class.isAssignableFrom(fieldType)) {
-            return "getSet(\"" + fieldName + "\",object)";
         } else {
-            return "(" + fieldType.getName() + ")(object.get(\"" + fieldName + "\"))";
+            String fieldTypeName = field.getType().getName();
+            if (Set.class.isAssignableFrom(fieldType)) {
+                return "(" + fieldTypeName + ")getSet(\"" + fieldName + "\"," + fieldTypeName + ".class,object)";
+            } else if (List.class.isAssignableFrom(fieldType)) {
+                return "(" + fieldTypeName + ")getList(\"" + fieldName + "\"," + fieldTypeName + ".class,object)";
+            } else if (fieldType.isArray()) {
+                return "(" + format(fieldTypeName) + "[])getArray(\"" + fieldName + "\"," + format(fieldTypeName) + ".class,object)";
+            } else {
+                return "(" + fieldTypeName + ")(object.get(\"" + fieldName + "\"))";
             }
         }
+    }
+
+    private static String format(String arrayTypeExpr) {
+        return arrayTypeExpr.substring(2).substring(0, arrayTypeExpr.length() - 3);
+    }
 
     //should be reinstated
     private static String genericType(CtField field) {

src/main/java/nl/sander/jsontoy2/JsonValueReader.java

@@ -1,9 +1,9 @@
 package nl.sander.jsontoy2;
 
-import java.util.HashSet;
+import java.lang.reflect.Array;
-import java.util.List;
+import java.lang.reflect.Constructor;
-import java.util.Map;
+import java.lang.reflect.InvocationTargetException;
-import java.util.Set;
+import java.util.*;
 
 /**
  * Base class for generated readers
@@ -49,9 +49,64 @@ public abstract class JsonValueReader<T> {
         return value == null ? 0D : (Double) value;
     }
 
-    protected Set<?> getSet(String fieldName, Map<String, ?> values) {
+    /*
-        Object value = values.get(fieldName);
+     * Creates a Set type for any implementation of it (that the containing bean needs),
-        return value == null ? null : new HashSet<>((List<?>) value);
+     * unless it has no constructor using a java.util.Collection as single parameter.
+     *
+     * returntype is generic Set, object needs cast afterwards in generated code
+     */
+    protected Set<?> getSet(String fieldName, Class<? extends Set<?>> type, Map<String, ?> values) {
+        List<?> value = (List<?>) values.get(fieldName);
+        if (value == null) {
+            return null;
+        } else {
+            try {
+                if (type.equals(Set.class)) {
+                    return new HashSet<>(value);
+                } else {
+                    Constructor<? extends Set<?>> constructor = type.getConstructor(Collection.class);
+                    return constructor.newInstance(value);
+                }
+            } catch (NoSuchMethodException | InstantiationException | IllegalAccessException | InvocationTargetException e) {
+                throw new JsonParseException(e);
+            }
+        }
     }
 
+    /*
+     * Creates a List type for any implementation of it (that the containing bean needs),
+     * unless it has no constructor using a java.util.Collection as single parameter.
+     *
+     * returntype is generic List, needs cast afterwards in generated code
+     */
+    protected List<?> getList(String fieldName, Class<?> listImplType, Map<String, ?> values) {
+        List<?> value = (List<?>) values.get(fieldName);
+        if (value == null) {
+            return null;
+        } else if (listImplType == ArrayList.class || listImplType.equals(List.class)) {
+            return value;
+        } else {
+            try {
+                Constructor<?> constructor = listImplType.getConstructor(Collection.class);
+                return (List<?>) constructor.newInstance(value);
+            } catch (NoSuchMethodException | InstantiationException | IllegalAccessException | InvocationTargetException e) {
+                throw new JsonParseException(e);
+            }
+        }
+    }
+
+    protected Object getArray(String fieldName, Class<?> arrayType, Map<String, ?> values) {
+        List<?> value = (List<?>) values.get(fieldName);
+        if (value == null) {
+            return new Object[]{};
+        } else {
+            Object[] array = (Object[]) Array.newInstance(arrayType, value.size());
+            int index = 0;
+            for (Object element : value) {
+                array[index] = value.get(index++);
+            }
+            //TODO this can probably be done smarter
+            return array;
+        }
+    }
 }

src/main/java/nl/sander/jsontoy2/Parser.java

@@ -148,7 +148,7 @@ public class Parser extends Lexer {
                 skipWhitespace();
                 final Maybe<Object> maybeValue;
                 try {
-                    maybeValue = type == null ? parseValue() : parseValue(type.getDeclaredField(key).getType());
+                    maybeValue = type == null ? parseValue() : Maybe.of(JsonReader.read(type.getDeclaredField(key).getType(), this));
                     maybeValue.ifPresent(value -> map.put(key, value));
                 } catch (NoSuchFieldException e) {
                     throw new JsonParseException(e);

src/main/java/nl/sander/jsontoy2/ReaderFactory.java

@@ -32,7 +32,7 @@ public class ReaderFactory {
     static <T> JsonValueReader<?> getReader(Class<T> type) {
         if (Map.class.isAssignableFrom(type)) {
             return MAPREADER;
-        } else if (List.class.isAssignableFrom(type) || Set.class.isAssignableFrom(type)) {
+        } else if (List.class.isAssignableFrom(type) || Set.class.isAssignableFrom(type) || type.isArray()) {
             return LISTREADER;
         } else {
             return readers.computeIfAbsent(type, k -> {

src/test/java/nl/sander/jsontoy2/WrapperObjectTests.java

@@ -5,6 +5,8 @@ import org.junit.jupiter.api.Test;
 
 import java.util.Arrays;
 import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
 
 import static org.junit.jupiter.api.Assertions.*;
 
@@ -89,23 +91,23 @@ public class WrapperObjectTests {
         assertEquals(new HashSet<>(Arrays.asList("a", "b")), listBean.getValue());
     }
 
-//    @Test
+    @Test
-//    public void testIntegerList() {
+    public void testIntegerList() {
-//        IntegerListBean listBean = JsonReader.read(IntegerListBean.class, "{\"value\": [1,22]}");
+        IntegerListBean listBean = JsonReader.read(IntegerListBean.class, "{\"value\": [1,22]}");
-//        assertEquals(Arrays.asList(1, 22), listBean.getValue());
+        assertEquals(Arrays.asList(1, 22), listBean.getValue());
-//    }
+    }
-//
-//    @Test
-//    public void testCharacterList() {
-//        CharacterListBean listBean = JsonReader.read(CharacterListBean.class, "{\"value\": [\"a\", \"[\", \"^\"]}");
-//        assertEquals(Arrays.asList('a', '[', '^'), listBean.getValue());
-//    }
 
-//    @Test
+    @Test
-//    public void testShortList() {
+    public void testCharacterList() {
-//        ShortListBean listBean = JsonReader.read(ShortListBean.class, "{\"value\": [-1,0,1]}");
+        CharacterListBean listBean = JsonReader.read(CharacterListBean.class, "{\"value\": [\"a\", \"[\", \"^\"]}");
-//        assertEquals(Arrays.asList((short) -1, (short) 0, (short) 1), listBean.getValue());
+        assertEquals(Arrays.asList('a', '[', '^'), listBean.getValue());
-//    }
+    }
+
+    @Test
+    public void testShortList() {
+        ShortListBean listBean = JsonReader.read(ShortListBean.class, "{\"value\": [-1,0,1]}");
+        assertEquals(Arrays.asList((short) -1, (short) 0, (short) 1), listBean.getValue());
+    }
 
     @Test
     public void testBooleanList() {
@@ -125,11 +127,11 @@ public class WrapperObjectTests {
 //        assertEquals(Arrays.asList((byte) -100, (byte) 78), listBean.getValue());
 //    }
 //
-//    @Test
+    @Test
-//    public void testDoubleList() {
+    public void testDoubleList() {
-//        DoubleListBean listBean = JsonReader.read(DoubleListBean.class, "{\"value\": [-100.156,78.0]}");
+        DoubleListBean listBean = JsonReader.read(DoubleListBean.class, "{\"value\": [-100.156,78.0]}");
-//        assertEquals(Arrays.asList(-100.156D, 78.0D), listBean.getValue());
+        assertEquals(Arrays.asList(-100.156D, 78.0D), listBean.getValue());
-//    }
+    }
 
     @Test
     public void testNestedBean() {
@@ -143,4 +145,20 @@ public class WrapperObjectTests {
         StringMapBean expected = new StringMapBean("a:", "b", "c:", "d");
         assertEquals(expected, actual);
     }
+
+    @Test
+    public void testLinkedList() {
+        LinkedListBean actual = JsonReader.read(LinkedListBean.class, "{\"list\": [\"a\"]}");
+        LinkedList<String> actualList = actual.getList();
+
+        assertEquals(List.of("a"), actualList);
+    }
+
+    @Test
+    public void testArray() {
+        ArrayBean actual = JsonReader.read(ArrayBean.class, "{\"array\": [\"a\"]}");
+
+        assertEquals(1, actual.getArray().length);
+        assertEquals("a", actual.getArray()[0]);
+    }
 }

src/test/java/nl/sander/jsontoy2/beans/ArrayBean.java

@@ -0,0 +1,13 @@
+package nl.sander.jsontoy2.beans;
+
+public class ArrayBean {
+    private String[] array;
+
+    public void setArray(String[] array) {
+        this.array = array;
+    }
+
+    public String[] getArray() {
+        return array;
+    }
+}

src/test/java/nl/sander/jsontoy2/beans/LinkedListBean.java

@@ -0,0 +1,15 @@
+package nl.sander.jsontoy2.beans;
+
+import java.util.LinkedList;
+
+public class LinkedListBean {
+    private LinkedList<String> list;
+
+    public LinkedList<String> getList() {
+        return list;
+    }
+
+    public void setList(LinkedList<String> list) {
+        this.list = list;
+    }
+}