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

Example 11 with JSONField

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

the class JavaBeanDeserializer method deserialze.

@SuppressWarnings({ "unchecked", "rawtypes" })
protected <// 
T> // 
T deserialze(// 
DefaultJSONParser parser, // 
Type type, // 
Object fieldName, //
Object object, //
int features, int[] setFlags) {
    if (type == JSON.class || type == JSONObject.class) {
        return (T) parser.parse();
    }
    // xxx
    final JSONLexerBase lexer = (JSONLexerBase) parser.lexer;
    int token = lexer.token();
    if (token == JSONToken.NULL) {
        lexer.nextToken(JSONToken.COMMA);
        return null;
    }
    ParseContext context = parser.getContext();
    if (object != null && context != null) {
        context = context.parent;
    }
    ParseContext childContext = null;
    try {
        Map<String, Object> fieldValues = null;
        if (token == JSONToken.RBRACE) {
            lexer.nextToken(JSONToken.COMMA);
            if (object == null) {
                object = createInstance(parser, type);
            }
            return (T) object;
        }
        if (token == JSONToken.LBRACKET) {
            final int mask = Feature.SupportArrayToBean.mask;
            boolean isSupportArrayToBean = //
            (beanInfo.parserFeatures & mask) != 0 || //
            lexer.isEnabled(Feature.SupportArrayToBean) || (features & mask) != 0;
            if (isSupportArrayToBean) {
                return deserialzeArrayMapping(parser, type, fieldName, object);
            }
        }
        if (token != JSONToken.LBRACE && token != JSONToken.COMMA) {
            if (lexer.isBlankInput()) {
                return null;
            }
            if (token == JSONToken.LITERAL_STRING) {
                String strVal = lexer.stringVal();
                if (strVal.length() == 0) {
                    lexer.nextToken();
                    return null;
                }
            }
            if (token == JSONToken.LBRACKET && lexer.getCurrent() == ']') {
                lexer.next();
                lexer.nextToken();
                return null;
            }
            StringBuffer buf = //
            (new StringBuffer()).append(//
            "syntax error, expect {, actual ").append(//
            lexer.tokenName()).append(//
            ", pos ").append(//
            lexer.pos());
            if (fieldName instanceof String) {
                //
                buf.append(//
                ", fieldName ").append(fieldName);
            }
            throw new JSONException(buf.toString());
        }
        if (parser.resolveStatus == DefaultJSONParser.TypeNameRedirect) {
            parser.resolveStatus = DefaultJSONParser.NONE;
        }
        for (int fieldIndex = 0; ; fieldIndex++) {
            String key = null;
            FieldDeserializer fieldDeser = null;
            FieldInfo fieldInfo = null;
            Class<?> fieldClass = null;
            JSONField feildAnnotation = null;
            if (fieldIndex < sortedFieldDeserializers.length) {
                fieldDeser = sortedFieldDeserializers[fieldIndex];
                fieldInfo = fieldDeser.fieldInfo;
                fieldClass = fieldInfo.fieldClass;
                feildAnnotation = fieldInfo.getAnnotation();
            }
            boolean matchField = false;
            boolean valueParsed = false;
            Object fieldValue = null;
            if (fieldDeser != null) {
                char[] name_chars = fieldInfo.name_chars;
                if (fieldClass == int.class || fieldClass == Integer.class) {
                    fieldValue = lexer.scanFieldInt(name_chars);
                    if (lexer.matchStat > 0) {
                        matchField = true;
                        valueParsed = true;
                    } else if (lexer.matchStat == JSONLexer.NOT_MATCH_NAME) {
                        continue;
                    }
                } else if (fieldClass == long.class || fieldClass == Long.class) {
                    fieldValue = lexer.scanFieldLong(name_chars);
                    if (lexer.matchStat > 0) {
                        matchField = true;
                        valueParsed = true;
                    } else if (lexer.matchStat == JSONLexer.NOT_MATCH_NAME) {
                        continue;
                    }
                } else if (fieldClass == String.class) {
                    fieldValue = lexer.scanFieldString(name_chars);
                    if (lexer.matchStat > 0) {
                        matchField = true;
                        valueParsed = true;
                    } else if (lexer.matchStat == JSONLexer.NOT_MATCH_NAME) {
                        continue;
                    }
                } else if (fieldClass == boolean.class || fieldClass == Boolean.class) {
                    fieldValue = lexer.scanFieldBoolean(name_chars);
                    if (lexer.matchStat > 0) {
                        matchField = true;
                        valueParsed = true;
                    } else if (lexer.matchStat == JSONLexer.NOT_MATCH_NAME) {
                        continue;
                    }
                } else if (fieldClass == float.class || fieldClass == Float.class) {
                    fieldValue = lexer.scanFieldFloat(name_chars);
                    if (lexer.matchStat > 0) {
                        matchField = true;
                        valueParsed = true;
                    } else if (lexer.matchStat == JSONLexer.NOT_MATCH_NAME) {
                        continue;
                    }
                } else if (fieldClass == double.class || fieldClass == Double.class) {
                    fieldValue = lexer.scanFieldDouble(name_chars);
                    if (lexer.matchStat > 0) {
                        matchField = true;
                        valueParsed = true;
                    } else if (lexer.matchStat == JSONLexer.NOT_MATCH_NAME) {
                        continue;
                    }
                } else if (// 
                fieldClass.isEnum() && parser.getConfig().getDeserializer(fieldClass) instanceof EnumDeserializer && (feildAnnotation == null || feildAnnotation.deserializeUsing() == Void.class)) {
                    if (fieldDeser instanceof DefaultFieldDeserializer) {
                        ObjectDeserializer fieldValueDeserilizer = ((DefaultFieldDeserializer) fieldDeser).fieldValueDeserilizer;
                        fieldValue = this.scanEnum(lexer, name_chars, fieldValueDeserilizer);
                        if (lexer.matchStat > 0) {
                            matchField = true;
                            valueParsed = true;
                        } else if (lexer.matchStat == JSONLexer.NOT_MATCH_NAME) {
                            continue;
                        }
                    }
                } else if (fieldClass == int[].class) {
                    fieldValue = lexer.scanFieldIntArray(name_chars);
                    if (lexer.matchStat > 0) {
                        matchField = true;
                        valueParsed = true;
                    } else if (lexer.matchStat == JSONLexer.NOT_MATCH_NAME) {
                        continue;
                    }
                } else if (fieldClass == float[].class) {
                    fieldValue = lexer.scanFieldFloatArray(name_chars);
                    if (lexer.matchStat > 0) {
                        matchField = true;
                        valueParsed = true;
                    } else if (lexer.matchStat == JSONLexer.NOT_MATCH_NAME) {
                        continue;
                    }
                } else if (fieldClass == float[][].class) {
                    fieldValue = lexer.scanFieldFloatArray2(name_chars);
                    if (lexer.matchStat > 0) {
                        matchField = true;
                        valueParsed = true;
                    } else if (lexer.matchStat == JSONLexer.NOT_MATCH_NAME) {
                        continue;
                    }
                } else if (lexer.matchField(name_chars)) {
                    matchField = true;
                } else {
                    continue;
                }
            }
            if (!matchField) {
                key = lexer.scanSymbol(parser.symbolTable);
                if (key == null) {
                    token = lexer.token();
                    if (token == JSONToken.RBRACE) {
                        lexer.nextToken(JSONToken.COMMA);
                        break;
                    }
                    if (token == JSONToken.COMMA) {
                        if (lexer.isEnabled(Feature.AllowArbitraryCommas)) {
                            continue;
                        }
                    }
                }
                if ("$ref" == key) {
                    lexer.nextTokenWithColon(JSONToken.LITERAL_STRING);
                    token = lexer.token();
                    if (token == JSONToken.LITERAL_STRING) {
                        String ref = lexer.stringVal();
                        if ("@".equals(ref)) {
                            object = context.object;
                        } else if ("..".equals(ref)) {
                            ParseContext parentContext = context.parent;
                            if (parentContext.object != null) {
                                object = parentContext.object;
                            } else {
                                parser.addResolveTask(new ResolveTask(parentContext, ref));
                                parser.resolveStatus = DefaultJSONParser.NeedToResolve;
                            }
                        } else if ("$".equals(ref)) {
                            ParseContext rootContext = context;
                            while (rootContext.parent != null) {
                                rootContext = rootContext.parent;
                            }
                            if (rootContext.object != null) {
                                object = rootContext.object;
                            } else {
                                parser.addResolveTask(new ResolveTask(rootContext, ref));
                                parser.resolveStatus = DefaultJSONParser.NeedToResolve;
                            }
                        } else {
                            parser.addResolveTask(new ResolveTask(context, ref));
                            parser.resolveStatus = DefaultJSONParser.NeedToResolve;
                        }
                    } else {
                        throw new JSONException("illegal ref, " + JSONToken.name(token));
                    }
                    lexer.nextToken(JSONToken.RBRACE);
                    if (lexer.token() != JSONToken.RBRACE) {
                        throw new JSONException("illegal ref");
                    }
                    lexer.nextToken(JSONToken.COMMA);
                    parser.setContext(context, object, fieldName);
                    return (T) object;
                }
                if (JSON.DEFAULT_TYPE_KEY == key) {
                    lexer.nextTokenWithColon(JSONToken.LITERAL_STRING);
                    if (lexer.token() == JSONToken.LITERAL_STRING) {
                        String typeName = lexer.stringVal();
                        lexer.nextToken(JSONToken.COMMA);
                        if (typeName.equals(beanInfo.typeName) || parser.isEnabled(Feature.IgnoreAutoType)) {
                            if (lexer.token() == JSONToken.RBRACE) {
                                lexer.nextToken();
                                break;
                            }
                            continue;
                        }
                        ParserConfig config = parser.getConfig();
                        ObjectDeserializer deserializer = getSeeAlso(config, this.beanInfo, typeName);
                        Class<?> userType = null;
                        if (deserializer == null) {
                            Class<?> expectClass = TypeUtils.getClass(type);
                            userType = config.checkAutoType(typeName, expectClass);
                            deserializer = parser.getConfig().getDeserializer(userType);
                        }
                        return (T) deserializer.deserialze(parser, userType, fieldName);
                    } else {
                        throw new JSONException("syntax error");
                    }
                }
            }
            if (object == null && fieldValues == null) {
                object = createInstance(parser, type);
                if (object == null) {
                    fieldValues = new HashMap<String, Object>(this.fieldDeserializers.length);
                }
                childContext = parser.setContext(context, object, fieldName);
            }
            if (matchField) {
                if (!valueParsed) {
                    fieldDeser.parseField(parser, object, type, fieldValues);
                } else {
                    if (object == null) {
                        fieldValues.put(fieldInfo.name, fieldValue);
                    } else if (fieldValue == null) {
                        if (//
                        fieldClass != int.class && //
                        fieldClass != long.class && //
                        fieldClass != float.class && //
                        fieldClass != double.class && //
                        fieldClass != boolean.class) {
                            fieldDeser.setValue(object, fieldValue);
                        }
                    } else {
                        fieldDeser.setValue(object, fieldValue);
                    }
                    if (lexer.matchStat == JSONLexer.END) {
                        break;
                    }
                }
            } else {
                boolean match = parseField(parser, key, object, type, fieldValues, setFlags);
                if (!match) {
                    if (lexer.token() == JSONToken.RBRACE) {
                        lexer.nextToken();
                        break;
                    }
                    continue;
                } else if (lexer.token() == JSONToken.COLON) {
                    throw new JSONException("syntax error, unexpect token ':'");
                }
            }
            if (lexer.token() == JSONToken.COMMA) {
                continue;
            }
            if (lexer.token() == JSONToken.RBRACE) {
                lexer.nextToken(JSONToken.COMMA);
                break;
            }
            if (lexer.token() == JSONToken.IDENTIFIER || lexer.token() == JSONToken.ERROR) {
                throw new JSONException("syntax error, unexpect token " + JSONToken.name(lexer.token()));
            }
        }
        if (object == null) {
            if (fieldValues == null) {
                object = createInstance(parser, type);
                if (childContext == null) {
                    childContext = parser.setContext(context, object, fieldName);
                }
                return (T) object;
            }
            FieldInfo[] fieldInfoList = beanInfo.fields;
            int size = fieldInfoList.length;
            Object[] params = new Object[size];
            for (int i = 0; i < size; ++i) {
                FieldInfo fieldInfo = fieldInfoList[i];
                Object param = fieldValues.get(fieldInfo.name);
                if (param == null) {
                    Type fieldType = fieldInfo.fieldType;
                    if (fieldType == byte.class) {
                        param = (byte) 0;
                    } else if (fieldType == short.class) {
                        param = (short) 0;
                    } else if (fieldType == int.class) {
                        param = 0;
                    } else if (fieldType == long.class) {
                        param = 0L;
                    } else if (fieldType == float.class) {
                        param = 0F;
                    } else if (fieldType == double.class) {
                        param = 0D;
                    } else if (fieldType == boolean.class) {
                        param = Boolean.FALSE;
                    }
                }
                params[i] = param;
            }
            if (beanInfo.creatorConstructor != null) {
                try {
                    object = beanInfo.creatorConstructor.newInstance(params);
                } catch (Exception e) {
                    throw new JSONException("create instance error, " + beanInfo.creatorConstructor.toGenericString(), e);
                }
            } else if (beanInfo.factoryMethod != null) {
                try {
                    object = beanInfo.factoryMethod.invoke(null, params);
                } catch (Exception e) {
                    throw new JSONException("create factory method error, " + beanInfo.factoryMethod.toString(), e);
                }
            }
        }
        Method buildMethod = beanInfo.buildMethod;
        if (buildMethod == null) {
            return (T) object;
        }
        Object builtObj;
        try {
            builtObj = buildMethod.invoke(object);
        } catch (Exception e) {
            throw new JSONException("build object error", e);
        }
        return (T) builtObj;
    } finally {
        if (childContext != null) {
            childContext.object = object;
        }
        parser.setContext(context);
    }
}

Example 12 with JSONField

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

the class TypeUtils method getSuperMethodAnnotation.

public static JSONField getSuperMethodAnnotation(final Class<?> clazz, final Method method) {
    Class<?>[] interfaces = clazz.getInterfaces();
    if (interfaces.length > 0) {
        Class<?>[] types = method.getParameterTypes();
        for (Class<?> interfaceClass : interfaces) {
            for (Method interfaceMethod : interfaceClass.getMethods()) {
                Class<?>[] interfaceTypes = interfaceMethod.getParameterTypes();
                if (interfaceTypes.length != types.length) {
                    continue;
                }
                if (!interfaceMethod.getName().equals(method.getName())) {
                    continue;
                }
                boolean match = true;
                for (int i = 0; i < types.length; ++i) {
                    if (!interfaceTypes[i].equals(types[i])) {
                        match = false;
                        break;
                    }
                }
                if (!match) {
                    continue;
                }
                JSONField annotation = interfaceMethod.getAnnotation(JSONField.class);
                if (annotation != null) {
                    return annotation;
                }
            }
        }
    }
    Class<?> superClass = clazz.getSuperclass();
    if (superClass == null) {
        return null;
    }
    if (Modifier.isAbstract(superClass.getModifiers())) {
        Class<?>[] types = method.getParameterTypes();
        for (Method interfaceMethod : superClass.getMethods()) {
            Class<?>[] interfaceTypes = interfaceMethod.getParameterTypes();
            if (interfaceTypes.length != types.length) {
                continue;
            }
            if (!interfaceMethod.getName().equals(method.getName())) {
                continue;
            }
            boolean match = true;
            for (int i = 0; i < types.length; ++i) {
                if (!interfaceTypes[i].equals(types[i])) {
                    match = false;
                    break;
                }
            }
            if (!match) {
                continue;
            }
            JSONField annotation = interfaceMethod.getAnnotation(JSONField.class);
            if (annotation != null) {
                return annotation;
            }
        }
    }
    return null;
}