Examples with JSONException com.alibaba.fastjson.JSONException used on opensource projects

Example 11 with JSONException

use of com.alibaba.fastjson.JSONException in project fastjson by alibaba.

the class JSONScanner method scanFieldString.

public String scanFieldString(char[] fieldName) {
    matchStat = UNKNOWN;
    int startPos = this.bp;
    char startChar = this.ch;
    if (!charArrayCompare(text, bp, fieldName)) {
        matchStat = NOT_MATCH_NAME;
        return stringDefaultValue();
    }
    int index = bp + fieldName.length;
    char ch = charAt(index++);
    if (ch != '"') {
        matchStat = NOT_MATCH;
        return stringDefaultValue();
    }
    final String strVal;
    {
        int startIndex = index;
        int endIndex = indexOf('"', startIndex);
        if (endIndex == -1) {
            throw new JSONException("unclosed str");
        }
        String stringVal = subString(startIndex, endIndex - startIndex);
        if (stringVal.indexOf('\\') != -1) {
            for (; ; ) {
                int slashCount = 0;
                for (int i = endIndex - 1; i >= 0; --i) {
                    if (charAt(i) == '\\') {
                        slashCount++;
                    } else {
                        break;
                    }
                }
                if (slashCount % 2 == 0) {
                    break;
                }
                endIndex = indexOf('"', endIndex + 1);
            }
            int chars_len = endIndex - (bp + fieldName.length + 1);
            char[] chars = sub_chars(bp + fieldName.length + 1, chars_len);
            stringVal = readString(chars, chars_len);
        }
        ch = charAt(endIndex + 1);
        for (; ; ) {
            if (ch == ',' || ch == '}') {
                bp = endIndex + 1;
                this.ch = ch;
                strVal = stringVal;
                break;
            } else if (isWhitespace(ch)) {
                endIndex++;
                ch = charAt(endIndex + 1);
            } else {
                matchStat = NOT_MATCH;
                return stringDefaultValue();
            }
        }
    }
    if (ch == ',') {
        this.ch = charAt(++bp);
        matchStat = VALUE;
        return strVal;
    } else {
        //condition ch == '}' is always 'true'
        ch = charAt(++bp);
        if (ch == ',') {
            token = JSONToken.COMMA;
            this.ch = charAt(++bp);
        } else if (ch == ']') {
            token = JSONToken.RBRACKET;
            this.ch = charAt(++bp);
        } else if (ch == '}') {
            token = JSONToken.RBRACE;
            this.ch = charAt(++bp);
        } else if (ch == EOI) {
            token = JSONToken.EOF;
        } else {
            this.bp = startPos;
            this.ch = startChar;
            matchStat = NOT_MATCH;
            return stringDefaultValue();
        }
        matchStat = END;
    }
    return strVal;
}

Example 12 with JSONException

use of com.alibaba.fastjson.JSONException in project fastjson by alibaba.

the class IOUtils method decode.

public static void decode(CharsetDecoder charsetDecoder, ByteBuffer byteBuf, CharBuffer charByte) {
    try {
        CoderResult cr = charsetDecoder.decode(byteBuf, charByte, true);
        if (!cr.isUnderflow()) {
            cr.throwException();
        }
        cr = charsetDecoder.flush(charByte);
        if (!cr.isUnderflow()) {
            cr.throwException();
        }
    } catch (CharacterCodingException x) {
        // so this shouldn't happen
        throw new JSONException("utf8 decode error, " + x.getMessage(), x);
    }
}

Example 13 with JSONException

use of com.alibaba.fastjson.JSONException in project fastjson by alibaba.

the class IOUtils method encodeUTF8.

public static int encodeUTF8(char[] sa, int sp, int len, byte[] da) {
    int sl = sp + len;
    int dp = 0;
    int dlASCII = dp + Math.min(len, da.length);
    // ASCII only optimized loop
    while (dp < dlASCII && sa[sp] < '€') {
        da[dp++] = (byte) sa[sp++];
    }
    while (sp < sl) {
        char c = sa[sp++];
        if (c < 0x80) {
            // Have at most seven bits
            da[dp++] = (byte) c;
        } else if (c < 0x800) {
            // 2 bytes, 11 bits
            da[dp++] = (byte) (0xc0 | (c >> 6));
            da[dp++] = (byte) (0x80 | (c & 0x3f));
        } else if (c >= '�' && c < ('�' + 1)) {
            //Character.isSurrogate(c) but 1.7
            final int uc;
            int ip = sp - 1;
            if (Character.isHighSurrogate(c)) {
                if (sl - ip < 2) {
                    uc = -1;
                } else {
                    char d = sa[ip + 1];
                    if (Character.isLowSurrogate(d)) {
                        uc = Character.toCodePoint(c, d);
                    } else {
                        throw new JSONException("encodeUTF8 error", new MalformedInputException(1));
                    }
                }
            } else {
                if (Character.isLowSurrogate(c)) {
                    throw new JSONException("encodeUTF8 error", new MalformedInputException(1));
                } else {
                    uc = c;
                }
            }
            if (uc < 0) {
                da[dp++] = (byte) '?';
            } else {
                da[dp++] = (byte) (0xf0 | ((uc >> 18)));
                da[dp++] = (byte) (0x80 | ((uc >> 12) & 0x3f));
                da[dp++] = (byte) (0x80 | ((uc >> 6) & 0x3f));
                da[dp++] = (byte) (0x80 | (uc & 0x3f));
                // 2 chars
                sp++;
            }
        } else {
            // 3 bytes, 16 bits
            da[dp++] = (byte) (0xe0 | ((c >> 12)));
            da[dp++] = (byte) (0x80 | ((c >> 6) & 0x3f));
            da[dp++] = (byte) (0x80 | (c & 0x3f));
        }
    }
    return dp;
}

Example 14 with JSONException

use of com.alibaba.fastjson.JSONException in project fastjson by alibaba.

the class IOUtils method readAll.

/**
     * @deprecated
     */
public static String readAll(Reader reader) {
    StringBuilder buf = new StringBuilder();
    try {
        char[] chars = new char[2048];
        for (; ; ) {
            int len = reader.read(chars, 0, chars.length);
            if (len < 0) {
                break;
            }
            buf.append(chars, 0, len);
        }
    } catch (Exception ex) {
        throw new JSONException("read string from reader error", ex);
    }
    return buf.toString();
}

Example 15 with JSONException

use of com.alibaba.fastjson.JSONException in project fastjson by alibaba.

the class JavaBeanInfo method build.

public static JavaBeanInfo build(Class<?> clazz, Type type, PropertyNamingStrategy propertyNamingStrategy) {
    JSONType jsonType = clazz.getAnnotation(JSONType.class);
    Class<?> builderClass = getBuilderClass(jsonType);
    Field[] declaredFields = clazz.getDeclaredFields();
    Method[] methods = clazz.getMethods();
    Constructor<?> defaultConstructor = getDefaultConstructor(builderClass == null ? clazz : builderClass);
    Constructor<?> creatorConstructor = null;
    Method buildMethod = null;
    List<FieldInfo> fieldList = new ArrayList<FieldInfo>();
    if (defaultConstructor == null && !(clazz.isInterface() || Modifier.isAbstract(clazz.getModifiers()))) {
        creatorConstructor = getCreatorConstructor(clazz);
        if (creatorConstructor != null) {
            // 基于标记 JSONCreator 注解的构造方法
            TypeUtils.setAccessible(creatorConstructor);
            Class<?>[] types = creatorConstructor.getParameterTypes();
            if (types.length > 0) {
                Annotation[][] paramAnnotationArrays = creatorConstructor.getParameterAnnotations();
                for (int i = 0; i < types.length; ++i) {
                    Annotation[] paramAnnotations = paramAnnotationArrays[i];
                    JSONField fieldAnnotation = null;
                    for (Annotation paramAnnotation : paramAnnotations) {
                        if (paramAnnotation instanceof JSONField) {
                            fieldAnnotation = (JSONField) paramAnnotation;
                            break;
                        }
                    }
                    if (fieldAnnotation == null) {
                        throw new JSONException("illegal json creator");
                    }
                    Class<?> fieldClass = types[i];
                    Type fieldType = creatorConstructor.getGenericParameterTypes()[i];
                    Field field = TypeUtils.getField(clazz, fieldAnnotation.name(), declaredFields);
                    final int ordinal = fieldAnnotation.ordinal();
                    final int serialzeFeatures = SerializerFeature.of(fieldAnnotation.serialzeFeatures());
                    final int parserFeatures = Feature.of(fieldAnnotation.parseFeatures());
                    FieldInfo fieldInfo = new FieldInfo(fieldAnnotation.name(), clazz, fieldClass, fieldType, field, ordinal, serialzeFeatures, parserFeatures);
                    add(fieldList, fieldInfo);
                }
            }
            return new JavaBeanInfo(clazz, builderClass, null, creatorConstructor, null, null, jsonType, fieldList);
        }
        // 基于标记 JSONCreator 注解的工厂方法
        Method factoryMethod = getFactoryMethod(clazz, methods);
        if (factoryMethod != null) {
            TypeUtils.setAccessible(factoryMethod);
            Class<?>[] types = factoryMethod.getParameterTypes();
            if (types.length > 0) {
                Annotation[][] paramAnnotationArrays = factoryMethod.getParameterAnnotations();
                for (int i = 0; i < types.length; ++i) {
                    Annotation[] paramAnnotations = paramAnnotationArrays[i];
                    JSONField fieldAnnotation = null;
                    for (Annotation paramAnnotation : paramAnnotations) {
                        if (paramAnnotation instanceof JSONField) {
                            fieldAnnotation = (JSONField) paramAnnotation;
                            break;
                        }
                    }
                    if (fieldAnnotation == null) {
                        throw new JSONException("illegal json creator");
                    }
                    Class<?> fieldClass = types[i];
                    Type fieldType = factoryMethod.getGenericParameterTypes()[i];
                    Field field = TypeUtils.getField(clazz, fieldAnnotation.name(), declaredFields);
                    final int ordinal = fieldAnnotation.ordinal();
                    final int serialzeFeatures = SerializerFeature.of(fieldAnnotation.serialzeFeatures());
                    final int parserFeatures = Feature.of(fieldAnnotation.parseFeatures());
                    FieldInfo fieldInfo = new FieldInfo(fieldAnnotation.name(), clazz, fieldClass, fieldType, field, ordinal, serialzeFeatures, parserFeatures);
                    add(fieldList, fieldInfo);
                }
            }
            return new JavaBeanInfo(clazz, builderClass, null, null, factoryMethod, null, jsonType, fieldList);
        }
        throw new JSONException("default constructor not found. " + clazz);
    }
    if (defaultConstructor != null) {
        TypeUtils.setAccessible(defaultConstructor);
    }
    if (builderClass != null) {
        String withPrefix = null;
        JSONPOJOBuilder builderAnno = builderClass.getAnnotation(JSONPOJOBuilder.class);
        if (builderAnno != null) {
            withPrefix = builderAnno.withPrefix();
        }
        if (withPrefix == null || withPrefix.length() == 0) {
            withPrefix = "with";
        }
        for (Method method : builderClass.getMethods()) {
            if (Modifier.isStatic(method.getModifiers())) {
                continue;
            }
            if (!(method.getReturnType().equals(builderClass))) {
                continue;
            }
            int ordinal = 0, serialzeFeatures = 0, parserFeatures = 0;
            JSONField annotation = method.getAnnotation(JSONField.class);
            if (annotation == null) {
                annotation = TypeUtils.getSuperMethodAnnotation(clazz, method);
            }
            if (annotation != null) {
                if (!annotation.deserialize()) {
                    continue;
                }
                ordinal = annotation.ordinal();
                serialzeFeatures = SerializerFeature.of(annotation.serialzeFeatures());
                parserFeatures = Feature.of(annotation.parseFeatures());
                if (annotation.name().length() != 0) {
                    String propertyName = annotation.name();
                    add(fieldList, new FieldInfo(propertyName, method, null, clazz, type, ordinal, serialzeFeatures, parserFeatures, annotation, null, null));
                    continue;
                }
            }
            String methodName = method.getName();
            if (!methodName.startsWith(withPrefix)) {
                continue;
            }
            if (methodName.length() <= withPrefix.length()) {
                continue;
            }
            char c0 = methodName.charAt(withPrefix.length());
            if (!Character.isUpperCase(c0)) {
                continue;
            }
            StringBuilder properNameBuilder = new StringBuilder(methodName.substring(withPrefix.length()));
            properNameBuilder.setCharAt(0, Character.toLowerCase(c0));
            String propertyName = properNameBuilder.toString();
            add(fieldList, new FieldInfo(propertyName, method, null, clazz, type, ordinal, serialzeFeatures, parserFeatures, annotation, null, null));
        }
        if (builderClass != null) {
            JSONPOJOBuilder builderAnnotation = builderClass.getAnnotation(JSONPOJOBuilder.class);
            String buildMethodName = null;
            if (builderAnnotation != null) {
                buildMethodName = builderAnnotation.buildMethod();
            }
            if (buildMethodName == null || buildMethodName.length() == 0) {
                buildMethodName = "build";
            }
            try {
                buildMethod = builderClass.getMethod(buildMethodName);
            } catch (NoSuchMethodException e) {
            // skip
            } catch (SecurityException e) {
            // skip
            }
            if (buildMethod == null) {
                try {
                    buildMethod = builderClass.getMethod("create");
                } catch (NoSuchMethodException e) {
                // skip
                } catch (SecurityException e) {
                // skip
                }
            }
            if (buildMethod == null) {
                throw new JSONException("buildMethod not found.");
            }
            TypeUtils.setAccessible(buildMethod);
        }
    }
    for (Method method : methods) {
        //
        int ordinal = 0, serialzeFeatures = 0, parserFeatures = 0;
        String methodName = method.getName();
        if (methodName.length() < 4) {
            continue;
        }
        if (Modifier.isStatic(method.getModifiers())) {
            continue;
        }
        // support builder set
        if (!(method.getReturnType().equals(Void.TYPE) || method.getReturnType().equals(method.getDeclaringClass()))) {
            continue;
        }
        Class<?>[] types = method.getParameterTypes();
        if (types.length != 1) {
            continue;
        }
        JSONField annotation = method.getAnnotation(JSONField.class);
        if (annotation == null) {
            annotation = TypeUtils.getSuperMethodAnnotation(clazz, method);
        }
        if (annotation != null) {
            if (!annotation.deserialize()) {
                continue;
            }
            ordinal = annotation.ordinal();
            serialzeFeatures = SerializerFeature.of(annotation.serialzeFeatures());
            parserFeatures = Feature.of(annotation.parseFeatures());
            if (annotation.name().length() != 0) {
                String propertyName = annotation.name();
                add(fieldList, new FieldInfo(propertyName, method, null, clazz, type, ordinal, serialzeFeatures, parserFeatures, annotation, null, null));
                continue;
            }
        }
        if (!methodName.startsWith("set")) {
            // TODO "set"的判断放在 JSONField 注解后面，意思是允许非 setter 方法标记 JSONField 注解？
            continue;
        }
        char c3 = methodName.charAt(3);
        String propertyName;
        if (//
        Character.isUpperCase(c3) || // for unicode method name
        c3 > 512) {
            if (TypeUtils.compatibleWithJavaBean) {
                propertyName = TypeUtils.decapitalize(methodName.substring(3));
            } else {
                propertyName = Character.toLowerCase(methodName.charAt(3)) + methodName.substring(4);
            }
        } 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 = TypeUtils.decapitalize(methodName.substring(3));
        } else {
            continue;
        }
        Field field = TypeUtils.getField(clazz, propertyName, declaredFields);
        if (field == null && types[0] == boolean.class) {
            String isFieldName = "is" + Character.toUpperCase(propertyName.charAt(0)) + propertyName.substring(1);
            field = TypeUtils.getField(clazz, isFieldName, declaredFields);
        }
        JSONField fieldAnnotation = null;
        if (field != null) {
            fieldAnnotation = field.getAnnotation(JSONField.class);
            if (fieldAnnotation != null) {
                if (!fieldAnnotation.deserialize()) {
                    continue;
                }
                ordinal = fieldAnnotation.ordinal();
                serialzeFeatures = SerializerFeature.of(fieldAnnotation.serialzeFeatures());
                parserFeatures = Feature.of(fieldAnnotation.parseFeatures());
                if (fieldAnnotation.name().length() != 0) {
                    propertyName = fieldAnnotation.name();
                    add(fieldList, new FieldInfo(propertyName, method, field, clazz, type, ordinal, serialzeFeatures, parserFeatures, annotation, fieldAnnotation, null));
                    continue;
                }
            }
        }
        if (propertyNamingStrategy != null) {
            propertyName = propertyNamingStrategy.translate(propertyName);
        }
        add(fieldList, new FieldInfo(propertyName, method, field, clazz, type, ordinal, serialzeFeatures, parserFeatures, annotation, fieldAnnotation, null));
    }
    for (Field field : clazz.getFields()) {
        // public static fields
        int modifiers = field.getModifiers();
        if ((modifiers & Modifier.STATIC) != 0) {
            continue;
        }
        if ((modifiers & Modifier.FINAL) != 0) {
            Class<?> fieldType = field.getType();
            boolean supportReadOnly = Map.class.isAssignableFrom(fieldType) || Collection.class.isAssignableFrom(fieldType) || //
            AtomicLong.class.equals(fieldType) || //
            AtomicInteger.class.equals(fieldType) || AtomicBoolean.class.equals(fieldType);
            if (!supportReadOnly) {
                continue;
            }
        }
        boolean contains = false;
        for (FieldInfo item : fieldList) {
            if (item.name.equals(field.getName())) {
                contains = true;
                // 已经是 contains = true，无需继续遍历
                break;
            }
        }
        if (contains) {
            continue;
        }
        int ordinal = 0, serialzeFeatures = 0, parserFeatures = 0;
        String propertyName = field.getName();
        JSONField fieldAnnotation = field.getAnnotation(JSONField.class);
        if (fieldAnnotation != null) {
            if (!fieldAnnotation.deserialize()) {
                continue;
            }
            ordinal = fieldAnnotation.ordinal();
            serialzeFeatures = SerializerFeature.of(fieldAnnotation.serialzeFeatures());
            parserFeatures = Feature.of(fieldAnnotation.parseFeatures());
            if (fieldAnnotation.name().length() != 0) {
                propertyName = fieldAnnotation.name();
            }
        }
        if (propertyNamingStrategy != null) {
            propertyName = propertyNamingStrategy.translate(propertyName);
        }
        add(fieldList, new FieldInfo(propertyName, null, field, clazz, type, ordinal, serialzeFeatures, parserFeatures, null, fieldAnnotation, null));
    }
    for (Method method : clazz.getMethods()) {
        // getter methods
        String methodName = method.getName();
        if (methodName.length() < 4) {
            continue;
        }
        if (Modifier.isStatic(method.getModifiers())) {
            continue;
        }
        if (methodName.startsWith("get") && Character.isUpperCase(methodName.charAt(3))) {
            if (method.getParameterTypes().length != 0) {
                continue;
            }
            if (//
            Collection.class.isAssignableFrom(method.getReturnType()) || //
            Map.class.isAssignableFrom(method.getReturnType()) || //
            AtomicBoolean.class == method.getReturnType() || //
            AtomicInteger.class == method.getReturnType() || //
            AtomicLong.class == method.getReturnType()) {
                String propertyName;
                JSONField annotation = method.getAnnotation(JSONField.class);
                if (annotation != null && annotation.deserialize()) {
                    continue;
                }
                if (annotation != null && annotation.name().length() > 0) {
                    propertyName = annotation.name();
                } else {
                    propertyName = Character.toLowerCase(methodName.charAt(3)) + methodName.substring(4);
                }
                FieldInfo fieldInfo = getField(fieldList, propertyName);
                if (fieldInfo != null) {
                    continue;
                }
                if (propertyNamingStrategy != null) {
                    propertyName = propertyNamingStrategy.translate(propertyName);
                }
                add(fieldList, new FieldInfo(propertyName, method, null, clazz, type, 0, 0, 0, annotation, null, null));
            }
        }
    }
    return new JavaBeanInfo(clazz, builderClass, defaultConstructor, null, null, buildMethod, jsonType, fieldList);
}