Examples with JSONField com.alibaba.fastjson.annotation.JSONField used on opensource projects

Example 6 with JSONField

use of com.alibaba.fastjson.annotation.JSONField in project fastjson by alibaba.

the class SerializeConfig method createJavaBeanSerializer.

public ObjectSerializer createJavaBeanSerializer(SerializeBeanInfo beanInfo) {
    JSONType jsonType = beanInfo.jsonType;
    if (jsonType != null) {
        Class<?> serializerClass = jsonType.serializer();
        if (serializerClass != Void.class) {
            try {
                Object seralizer = serializerClass.newInstance();
                if (seralizer instanceof ObjectSerializer) {
                    return (ObjectSerializer) seralizer;
                }
            } catch (Throwable e) {
            // skip
            }
        }
        if (jsonType.asm() == false) {
            asm = false;
        }
    }
    Class<?> clazz = beanInfo.beanType;
    if (!Modifier.isPublic(beanInfo.beanType.getModifiers())) {
        return new JavaBeanSerializer(beanInfo);
    }
    boolean asm = this.asm;
    if (asm && asmFactory.classLoader.isExternalClass(clazz) || clazz == Serializable.class || clazz == Object.class) {
        asm = false;
    }
    if (asm && !ASMUtils.checkName(clazz.getSimpleName())) {
        asm = false;
    }
    if (asm) {
        for (FieldInfo fieldInfo : beanInfo.fields) {
            Field field = fieldInfo.field;
            if (field != null && !field.getType().equals(fieldInfo.fieldClass)) {
                asm = false;
                break;
            }
            Method method = fieldInfo.method;
            if (method != null && !method.getReturnType().equals(fieldInfo.fieldClass)) {
                asm = false;
                break;
            }
            JSONField annotation = fieldInfo.getAnnotation();
            if (annotation == null) {
                continue;
            }
            if (//
            (!ASMUtils.checkName(annotation.name())) || annotation.format().length() != 0 || annotation.jsonDirect() || annotation.serializeUsing() != Void.class) {
                asm = false;
                break;
            }
            for (SerializerFeature feature : annotation.serialzeFeatures()) {
                if (SerializerFeature.WriteNonStringValueAsString == feature || SerializerFeature.WriteEnumUsingToString == feature) {
                    asm = false;
                    break;
                }
            }
        }
    }
    if (asm) {
        try {
            ObjectSerializer asmSerializer = createASMSerializer(beanInfo);
            if (asmSerializer != null) {
                return asmSerializer;
            }
        } catch (ClassFormatError e) {
        // skip
        } catch (ClassCastException e) {
        // skip
        } catch (Throwable e) {
            throw new JSONException("create asm serializer error, class " + clazz, e);
        }
    }
    return new JavaBeanSerializer(beanInfo);
}

Example 7 with JSONField

use of com.alibaba.fastjson.annotation.JSONField in project fastjson by alibaba.

the class FieldSerializer method writeValue.

public void writeValue(JSONSerializer serializer, Object propertyValue) throws Exception {
    if (runtimeInfo == null) {
        Class<?> runtimeFieldClass;
        if (propertyValue == null) {
            runtimeFieldClass = this.fieldInfo.fieldClass;
        } else {
            runtimeFieldClass = propertyValue.getClass();
        }
        ObjectSerializer fieldSerializer = null;
        JSONField fieldAnnotation = fieldInfo.getAnnotation();
        if (fieldAnnotation != null && fieldAnnotation.serializeUsing() != Void.class) {
            fieldSerializer = (ObjectSerializer) fieldAnnotation.serializeUsing().newInstance();
            serializeUsing = true;
        } else {
            if (format != null) {
                if (runtimeFieldClass == double.class || runtimeFieldClass == Double.class) {
                    fieldSerializer = new DoubleSerializer(format);
                } else if (runtimeFieldClass == float.class || runtimeFieldClass == Float.class) {
                    fieldSerializer = new FloatCodec(format);
                }
            }
            if (fieldSerializer == null) {
                fieldSerializer = serializer.getObjectWriter(runtimeFieldClass);
            }
        }
        runtimeInfo = new RuntimeSerializerInfo(fieldSerializer, runtimeFieldClass);
    }
    final RuntimeSerializerInfo runtimeInfo = this.runtimeInfo;
    final int fieldFeatures = fieldInfo.serialzeFeatures;
    if (propertyValue == null) {
        Class<?> runtimeFieldClass = runtimeInfo.runtimeFieldClass;
        SerializeWriter out = serializer.out;
        if (Number.class.isAssignableFrom(runtimeFieldClass)) {
            out.writeNull(features, SerializerFeature.WriteNullNumberAsZero.mask);
            return;
        } else if (String.class == runtimeFieldClass) {
            out.writeNull(features, SerializerFeature.WriteNullStringAsEmpty.mask);
            return;
        } else if (Boolean.class == runtimeFieldClass) {
            out.writeNull(features, SerializerFeature.WriteNullBooleanAsFalse.mask);
            return;
        } else if (Collection.class.isAssignableFrom(runtimeFieldClass)) {
            out.writeNull(features, SerializerFeature.WriteNullListAsEmpty.mask);
            return;
        }
        ObjectSerializer fieldSerializer = runtimeInfo.fieldSerializer;
        if ((out.isEnabled(SerializerFeature.WRITE_MAP_NULL_FEATURES)) && fieldSerializer instanceof JavaBeanSerializer) {
            out.writeNull();
            return;
        }
        fieldSerializer.write(serializer, null, fieldInfo.name, fieldInfo.fieldType, fieldFeatures);
        return;
    }
    if (fieldInfo.isEnum) {
        if (writeEnumUsingName) {
            serializer.out.writeString(((Enum<?>) propertyValue).name());
            return;
        }
        if (writeEnumUsingToString) {
            serializer.out.writeString(((Enum<?>) propertyValue).toString());
            return;
        }
    }
    Class<?> valueClass = propertyValue.getClass();
    ObjectSerializer valueSerializer;
    if (valueClass == runtimeInfo.runtimeFieldClass || serializeUsing) {
        valueSerializer = runtimeInfo.fieldSerializer;
    } else {
        valueSerializer = serializer.getObjectWriter(valueClass);
    }
    if (format != null && !(valueSerializer instanceof DoubleSerializer || valueSerializer instanceof FloatCodec)) {
        if (valueSerializer instanceof ContextObjectSerializer) {
            ((ContextObjectSerializer) valueSerializer).write(serializer, propertyValue, this.fieldContext);
        } else {
            serializer.writeWithFormat(propertyValue, format);
        }
    } else {
        valueSerializer.write(serializer, propertyValue, fieldInfo.name, fieldInfo.fieldType, fieldFeatures);
    }
}

Example 8 with JSONField

use of com.alibaba.fastjson.annotation.JSONField in project fastjson by alibaba.

the class ASMSerializerFactory method _if_write_null.

private void _if_write_null(MethodVisitor mw, FieldInfo fieldInfo, Context context) {
    Class<?> propertyClass = fieldInfo.fieldClass;
    Label _if = new Label();
    Label _else = new Label();
    Label _write_null = new Label();
    Label _end_if = new Label();
    mw.visitLabel(_if);
    JSONField annotation = fieldInfo.getAnnotation();
    int features = 0;
    if (annotation != null) {
        features = SerializerFeature.of(annotation.serialzeFeatures());
        ;
    }
    if ((features & SerializerFeature.WRITE_MAP_NULL_FEATURES) == 0) {
        mw.visitVarInsn(ALOAD, context.var("out"));
        mw.visitLdcInsn(SerializerFeature.WRITE_MAP_NULL_FEATURES);
        mw.visitMethodInsn(INVOKEVIRTUAL, SerializeWriter, "isEnabled", "(I)Z");
        mw.visitJumpInsn(IFEQ, _else);
    }
    mw.visitLabel(_write_null);
    mw.visitVarInsn(ALOAD, context.var("out"));
    mw.visitVarInsn(ILOAD, context.var("seperator"));
    mw.visitMethodInsn(INVOKEVIRTUAL, SerializeWriter, "write", "(I)V");
    _writeFieldName(mw, context);
    mw.visitVarInsn(ALOAD, context.var("out"));
    mw.visitLdcInsn(features);
    if (propertyClass == String.class || propertyClass == Character.class) {
        mw.visitLdcInsn(SerializerFeature.WriteNullStringAsEmpty.mask);
    } else if (Number.class.isAssignableFrom(propertyClass)) {
        mw.visitLdcInsn(SerializerFeature.WriteNullNumberAsZero.mask);
    } else if (propertyClass == Boolean.class) {
        mw.visitLdcInsn(SerializerFeature.WriteNullBooleanAsFalse.mask);
    } else if (Collection.class.isAssignableFrom(propertyClass) || propertyClass.isArray()) {
        mw.visitLdcInsn(SerializerFeature.WriteNullListAsEmpty.mask);
    } else {
        mw.visitLdcInsn(0);
    }
    mw.visitMethodInsn(INVOKEVIRTUAL, SerializeWriter, "writeNull", "(II)V");
    // seperator = ',';
    _seperator(mw, context);
    mw.visitJumpInsn(GOTO, _end_if);
    mw.visitLabel(_else);
    mw.visitLabel(_end_if);
}

Example 9 with JSONField

use of com.alibaba.fastjson.annotation.JSONField in project fastjson by alibaba.

the class TypeUtils method computeGetters.

public static //
List<FieldInfo> computeGetters(//
Class<?> clazz, //
JSONType jsonType, //
Map<String, String> aliasMap, //
Map<String, Field> fieldCacheMap, //
boolean sorted, //
PropertyNamingStrategy propertyNamingStrategy) {
    Map<String, FieldInfo> fieldInfoMap = new LinkedHashMap<String, FieldInfo>();
    for (Method method : clazz.getMethods()) {
        String methodName = method.getName();
        int ordinal = 0, serialzeFeatures = 0, parserFeatures = 0;
        String label = null;
        if (Modifier.isStatic(method.getModifiers())) {
            continue;
        }
        if (method.getReturnType().equals(Void.TYPE)) {
            continue;
        }
        if (method.getParameterTypes().length != 0) {
            continue;
        }
        if (method.getReturnType() == ClassLoader.class) {
            continue;
        }
        if (method.getName().equals("getMetaClass") && method.getReturnType().getName().equals("groovy.lang.MetaClass")) {
            continue;
        }
        JSONField annotation = method.getAnnotation(JSONField.class);
        if (annotation == null) {
            annotation = getSuperMethodAnnotation(clazz, method);
        }
        if (annotation != null) {
            if (!annotation.serialize()) {
                continue;
            }
            ordinal = annotation.ordinal();
            serialzeFeatures = SerializerFeature.of(annotation.serialzeFeatures());
            parserFeatures = Feature.of(annotation.parseFeatures());
            if (annotation.name().length() != 0) {
                String propertyName = annotation.name();
                if (aliasMap != null) {
                    propertyName = aliasMap.get(propertyName);
                    if (propertyName == null) {
                        continue;
                    }
                }
                FieldInfo fieldInfo = new FieldInfo(propertyName, method, null, clazz, null, ordinal, serialzeFeatures, parserFeatures, annotation, null, label);
                fieldInfoMap.put(propertyName, fieldInfo);
                continue;
            }
            if (annotation.label().length() != 0) {
                label = annotation.label();
            }
        }
        if (methodName.startsWith("get")) {
            if (methodName.length() < 4) {
                continue;
            }
            if (methodName.equals("getClass")) {
                continue;
            }
            if (methodName.equals("getDeclaringClass") && clazz.isEnum()) {
                continue;
            }
            char c3 = methodName.charAt(3);
            String propertyName;
            if (//
            Character.isUpperCase(c3) || // for unicode method name
            c3 > 512) {
                if (compatibleWithJavaBean) {
                    propertyName = decapitalize(methodName.substring(3));
                } else {
                    propertyName = Character.toLowerCase(methodName.charAt(3)) + methodName.substring(4);
                }
                propertyName = getPropertyNameByCompatibleFieldName(fieldCacheMap, methodName, propertyName, 3);
            } else if (c3 == '_') {
                propertyName = methodName.substring(4);
            } else if (c3 == 'f') {
                propertyName = methodName.substring(3);
            } else if (methodName.length() >= 5 && Character.isUpperCase(methodName.charAt(4))) {
                propertyName = decapitalize(methodName.substring(3));
            } else {
                continue;
            }
            boolean ignore = isJSONTypeIgnore(clazz, propertyName);
            if (ignore) {
                continue;
            }
            //假如bean的field很多的情况一下，轮询时将大大降低效率
            Field field = ParserConfig.getFieldFromCache(propertyName, fieldCacheMap);
            if (field == null && propertyName.length() > 1) {
                char ch = propertyName.charAt(1);
                if (ch >= 'A' && ch <= 'Z') {
                    String javaBeanCompatiblePropertyName = decapitalize(methodName.substring(3));
                    field = ParserConfig.getFieldFromCache(javaBeanCompatiblePropertyName, fieldCacheMap);
                }
            }
            JSONField fieldAnnotation = null;
            if (field != null) {
                fieldAnnotation = field.getAnnotation(JSONField.class);
                if (fieldAnnotation != null) {
                    if (!fieldAnnotation.serialize()) {
                        continue;
                    }
                    ordinal = fieldAnnotation.ordinal();
                    serialzeFeatures = SerializerFeature.of(fieldAnnotation.serialzeFeatures());
                    parserFeatures = Feature.of(fieldAnnotation.parseFeatures());
                    if (fieldAnnotation.name().length() != 0) {
                        propertyName = fieldAnnotation.name();
                        if (aliasMap != null) {
                            propertyName = aliasMap.get(propertyName);
                            if (propertyName == null) {
                                continue;
                            }
                        }
                    }
                    if (fieldAnnotation.label().length() != 0) {
                        label = fieldAnnotation.label();
                    }
                }
            }
            if (aliasMap != null) {
                propertyName = aliasMap.get(propertyName);
                if (propertyName == null) {
                    continue;
                }
            }
            if (propertyNamingStrategy != null) {
                propertyName = propertyNamingStrategy.translate(propertyName);
            }
            FieldInfo fieldInfo = new FieldInfo(propertyName, method, field, clazz, null, ordinal, serialzeFeatures, parserFeatures, annotation, fieldAnnotation, label);
            fieldInfoMap.put(propertyName, fieldInfo);
        }
        if (methodName.startsWith("is")) {
            if (methodName.length() < 3) {
                continue;
            }
            if (method.getReturnType() != Boolean.TYPE && method.getReturnType() != Boolean.class) {
                continue;
            }
            char c2 = methodName.charAt(2);
            String propertyName;
            if (Character.isUpperCase(c2)) {
                if (compatibleWithJavaBean) {
                    propertyName = decapitalize(methodName.substring(2));
                } else {
                    propertyName = Character.toLowerCase(methodName.charAt(2)) + methodName.substring(3);
                }
                propertyName = getPropertyNameByCompatibleFieldName(fieldCacheMap, methodName, propertyName, 2);
            } else if (c2 == '_') {
                propertyName = methodName.substring(3);
            } else if (c2 == 'f') {
                propertyName = methodName.substring(2);
            } else {
                continue;
            }
            Field field = ParserConfig.getFieldFromCache(propertyName, fieldCacheMap);
            if (field == null) {
                field = ParserConfig.getFieldFromCache(methodName, fieldCacheMap);
            }
            JSONField fieldAnnotation = null;
            if (field != null) {
                fieldAnnotation = field.getAnnotation(JSONField.class);
                if (fieldAnnotation != null) {
                    if (!fieldAnnotation.serialize()) {
                        continue;
                    }
                    ordinal = fieldAnnotation.ordinal();
                    serialzeFeatures = SerializerFeature.of(fieldAnnotation.serialzeFeatures());
                    parserFeatures = Feature.of(fieldAnnotation.parseFeatures());
                    if (fieldAnnotation.name().length() != 0) {
                        propertyName = fieldAnnotation.name();
                        if (aliasMap != null) {
                            propertyName = aliasMap.get(propertyName);
                            if (propertyName == null) {
                                continue;
                            }
                        }
                    }
                    if (fieldAnnotation.label().length() != 0) {
                        label = fieldAnnotation.label();
                    }
                }
            }
            if (aliasMap != null) {
                propertyName = aliasMap.get(propertyName);
                if (propertyName == null) {
                    continue;
                }
            }
            if (propertyNamingStrategy != null) {
                propertyName = propertyNamingStrategy.translate(propertyName);
            }
            //优先选择get
            if (fieldInfoMap.containsKey(propertyName)) {
                continue;
            }
            FieldInfo fieldInfo = new FieldInfo(propertyName, method, field, clazz, null, ordinal, serialzeFeatures, parserFeatures, annotation, fieldAnnotation, label);
            fieldInfoMap.put(propertyName, fieldInfo);
        }
    }
    for (Field field : clazz.getFields()) {
        if (Modifier.isStatic(field.getModifiers())) {
            continue;
        }
        JSONField fieldAnnotation = field.getAnnotation(JSONField.class);
        int ordinal = 0, serialzeFeatures = 0, parserFeatures = 0;
        String propertyName = field.getName();
        String label = null;
        if (fieldAnnotation != null) {
            if (!fieldAnnotation.serialize()) {
                continue;
            }
            ordinal = fieldAnnotation.ordinal();
            serialzeFeatures = SerializerFeature.of(fieldAnnotation.serialzeFeatures());
            parserFeatures = Feature.of(fieldAnnotation.parseFeatures());
            if (fieldAnnotation.name().length() != 0) {
                propertyName = fieldAnnotation.name();
            }
            if (fieldAnnotation.label().length() != 0) {
                label = fieldAnnotation.label();
            }
        }
        if (aliasMap != null) {
            propertyName = aliasMap.get(propertyName);
            if (propertyName == null) {
                continue;
            }
        }
        if (propertyNamingStrategy != null) {
            propertyName = propertyNamingStrategy.translate(propertyName);
        }
        if (!fieldInfoMap.containsKey(propertyName)) {
            FieldInfo fieldInfo = new FieldInfo(propertyName, null, field, clazz, null, ordinal, serialzeFeatures, parserFeatures, null, fieldAnnotation, label);
            fieldInfoMap.put(propertyName, fieldInfo);
        }
    }
    List<FieldInfo> fieldInfoList = new ArrayList<FieldInfo>();
    boolean containsAll = false;
    String[] orders = null;
    JSONType annotation = clazz.getAnnotation(JSONType.class);
    if (annotation != null) {
        orders = annotation.orders();
        if (orders != null && orders.length == fieldInfoMap.size()) {
            containsAll = true;
            for (String item : orders) {
                if (!fieldInfoMap.containsKey(item)) {
                    containsAll = false;
                    break;
                }
            }
        } else {
            containsAll = false;
        }
    }
    if (containsAll) {
        for (String item : orders) {
            FieldInfo fieldInfo = fieldInfoMap.get(item);
            fieldInfoList.add(fieldInfo);
        }
    } else {
        for (FieldInfo fieldInfo : fieldInfoMap.values()) {
            fieldInfoList.add(fieldInfo);
        }
        if (sorted) {
            Collections.sort(fieldInfoList);
        }
    }
    return fieldInfoList;
}

Example 10 with JSONField

use of com.alibaba.fastjson.annotation.JSONField in project fastjson by alibaba.

the class ParserConfigBug569 method createFieldDeserializer.

public //
FieldDeserializer createFieldDeserializer(//
ParserConfig mapping, //
JavaBeanInfo beanInfo, FieldInfo fieldInfo) {
    Class<?> clazz = beanInfo.clazz;
    Class<?> fieldClass = fieldInfo.fieldClass;
    Class<?> deserializeUsing = null;
    JSONField annotation = fieldInfo.getAnnotation();
    if (annotation != null) {
        deserializeUsing = annotation.deserializeUsing();
        if (deserializeUsing == Void.class) {
            deserializeUsing = null;
        }
    }
    if (deserializeUsing == null && (fieldClass == List.class || fieldClass == ArrayList.class)) {
        return new ArrayListTypeFieldDeserializer(mapping, clazz, fieldInfo);
    }
    return new DefaultFieldDeserializerBug569(mapping, clazz, fieldInfo);
}