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

Example 21 with JSONException

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

the class ThrowableDeserializer method deserialze.

@SuppressWarnings("unchecked")
public <T> T deserialze(DefaultJSONParser parser, Type type, Object fieldName) {
    JSONLexer lexer = parser.lexer;
    if (lexer.token() == JSONToken.NULL) {
        lexer.nextToken();
        return null;
    }
    if (parser.getResolveStatus() == DefaultJSONParser.TypeNameRedirect) {
        parser.setResolveStatus(DefaultJSONParser.NONE);
    } else {
        if (lexer.token() != JSONToken.LBRACE) {
            throw new JSONException("syntax error");
        }
    }
    Throwable cause = null;
    Class<?> exClass = null;
    if (type != null && type instanceof Class) {
        Class<?> clazz = (Class<?>) type;
        if (Throwable.class.isAssignableFrom(clazz)) {
            exClass = clazz;
        }
    }
    String message = null;
    StackTraceElement[] stackTrace = null;
    Map<String, Object> otherValues = new HashMap<String, Object>();
    for (; ; ) {
        // lexer.scanSymbol
        String key = lexer.scanSymbol(parser.getSymbolTable());
        if (key == null) {
            if (lexer.token() == JSONToken.RBRACE) {
                lexer.nextToken(JSONToken.COMMA);
                break;
            }
            if (lexer.token() == JSONToken.COMMA) {
                if (lexer.isEnabled(Feature.AllowArbitraryCommas)) {
                    continue;
                }
            }
        }
        lexer.nextTokenWithColon(JSONToken.LITERAL_STRING);
        if (JSON.DEFAULT_TYPE_KEY.equals(key)) {
            if (lexer.token() == JSONToken.LITERAL_STRING) {
                String exClassName = lexer.stringVal();
                exClass = parser.getConfig().checkAutoType(exClassName, Throwable.class);
            } else {
                throw new JSONException("syntax error");
            }
            lexer.nextToken(JSONToken.COMMA);
        } else if ("message".equals(key)) {
            if (lexer.token() == JSONToken.NULL) {
                message = null;
            } else if (lexer.token() == JSONToken.LITERAL_STRING) {
                message = lexer.stringVal();
            } else {
                throw new JSONException("syntax error");
            }
            lexer.nextToken();
        } else if ("cause".equals(key)) {
            cause = deserialze(parser, null, "cause");
        } else if ("stackTrace".equals(key)) {
            stackTrace = parser.parseObject(StackTraceElement[].class);
        } else {
            // TODO
            otherValues.put(key, parser.parse());
        }
        if (lexer.token() == JSONToken.RBRACE) {
            lexer.nextToken(JSONToken.COMMA);
            break;
        }
    }
    Throwable ex = null;
    if (exClass == null) {
        ex = new Exception(message, cause);
    } else {
        if (!Throwable.class.isAssignableFrom(exClass)) {
            throw new JSONException("type not match, not Throwable. " + exClass.getName());
        }
        try {
            ex = createException(message, cause, exClass);
            if (ex == null) {
                ex = new Exception(message, cause);
            }
        } catch (Exception e) {
            throw new JSONException("create instance error", e);
        }
    }
    if (stackTrace != null) {
        ex.setStackTrace(stackTrace);
    }
    return (T) ex;
}

Example 22 with JSONException

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

the class EnumDeserializer method deserialze.

@SuppressWarnings("unchecked")
public <T> T deserialze(DefaultJSONParser parser, Type type, Object fieldName) {
    try {
        Object value;
        final JSONLexer lexer = parser.lexer;
        final int token = lexer.token();
        if (token == JSONToken.LITERAL_INT) {
            int intValue = lexer.intValue();
            lexer.nextToken(JSONToken.COMMA);
            if (intValue < 0 || intValue > ordinalEnums.length) {
                throw new JSONException("parse enum " + enumClass.getName() + " error, value : " + intValue);
            }
            return (T) ordinalEnums[intValue];
        } else if (token == JSONToken.LITERAL_STRING) {
            String strVal = lexer.stringVal();
            lexer.nextToken(JSONToken.COMMA);
            if (strVal.length() == 0) {
                return (T) null;
            }
            return (T) Enum.valueOf((Class<Enum>) enumClass, strVal);
        } else if (token == JSONToken.NULL) {
            value = null;
            lexer.nextToken(JSONToken.COMMA);
            return null;
        } else {
            value = parser.parse();
        }
        throw new JSONException("parse enum " + enumClass.getName() + " error, value : " + value);
    } catch (JSONException e) {
        throw e;
    } catch (Exception e) {
        throw new JSONException(e.getMessage(), e);
    }
}

Example 23 with JSONException

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

the class JavaBeanDeserializer method createInstance.

public //
Object createInstance(//
Map<String, Object> map, //
ParserConfig config) throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
    Object object = null;
    if (beanInfo.creatorConstructor == null && beanInfo.factoryMethod == null) {
        object = createInstance(null, clazz);
        for (Map.Entry<String, Object> entry : map.entrySet()) {
            String key = entry.getKey();
            Object value = entry.getValue();
            FieldDeserializer fieldDeser = smartMatch(key);
            if (fieldDeser == null) {
                continue;
            }
            final FieldInfo fieldInfo = fieldDeser.fieldInfo;
            Type paramType = fieldInfo.fieldType;
            value = TypeUtils.cast(value, paramType, config);
            fieldDeser.setValue(object, value);
        }
        if (beanInfo.buildMethod != null) {
            Object builtObj;
            try {
                builtObj = beanInfo.buildMethod.invoke(object);
            } catch (Exception e) {
                throw new JSONException("build object error", e);
            }
            return builtObj;
        }
        return 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];
        params[i] = map.get(fieldInfo.name);
    }
    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);
        }
    }
    return object;
}

Example 24 with JSONException

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

the class JavaBeanDeserializer method parseField.

public boolean parseField(DefaultJSONParser parser, String key, Object object, Type objectType, Map<String, Object> fieldValues, int[] setFlags) {
    // xxx
    JSONLexer lexer = parser.lexer;
    final int disableFieldSmartMatchMask = Feature.DisableFieldSmartMatch.mask;
    FieldDeserializer fieldDeserializer;
    if (lexer.isEnabled(disableFieldSmartMatchMask) || (this.beanInfo.parserFeatures & disableFieldSmartMatchMask) != 0) {
        fieldDeserializer = getFieldDeserializer(key);
    } else {
        fieldDeserializer = smartMatch(key);
    }
    final int mask = Feature.SupportNonPublicField.mask;
    if (fieldDeserializer == null && (lexer.isEnabled(mask) || (this.beanInfo.parserFeatures & mask) != 0)) {
        if (this.extraFieldDeserializers == null) {
            ConcurrentHashMap extraFieldDeserializers = new ConcurrentHashMap<String, Object>(1, 0.75f, 1);
            Field[] fields = this.clazz.getDeclaredFields();
            for (Field field : fields) {
                String fieldName = field.getName();
                if (this.getFieldDeserializer(fieldName) != null) {
                    continue;
                }
                int fieldModifiers = field.getModifiers();
                if ((fieldModifiers & Modifier.FINAL) != 0 || (fieldModifiers & Modifier.STATIC) != 0) {
                    continue;
                }
                extraFieldDeserializers.put(fieldName, field);
            }
            this.extraFieldDeserializers = extraFieldDeserializers;
        }
        Object deserOrField = extraFieldDeserializers.get(key);
        if (deserOrField != null) {
            if (deserOrField instanceof FieldDeserializer) {
                fieldDeserializer = ((FieldDeserializer) deserOrField);
            } else {
                Field field = (Field) deserOrField;
                field.setAccessible(true);
                FieldInfo fieldInfo = new FieldInfo(key, field.getDeclaringClass(), field.getType(), field.getGenericType(), field, 0, 0, 0);
                fieldDeserializer = new DefaultFieldDeserializer(parser.getConfig(), clazz, fieldInfo);
                extraFieldDeserializers.put(key, fieldDeserializer);
            }
        }
    }
    if (fieldDeserializer == null) {
        if (!lexer.isEnabled(Feature.IgnoreNotMatch)) {
            throw new JSONException("setter not found, class " + clazz.getName() + ", property " + key);
        }
        parser.parseExtra(object, key);
        return false;
    }
    int fieldIndex = -1;
    for (int i = 0; i < sortedFieldDeserializers.length; ++i) {
        if (sortedFieldDeserializers[i] == fieldDeserializer) {
            fieldIndex = i;
            break;
        }
    }
    if (fieldIndex != -1 && setFlags != null && key.startsWith("_")) {
        int flagIndex = fieldIndex / 32;
        if (flagIndex < setFlags.length) {
            if ((setFlags[flagIndex] & (1 << flagIndex)) != 0) {
                parser.parseExtra(object, key);
                return false;
            }
        }
    }
    lexer.nextTokenWithColon(fieldDeserializer.getFastMatchToken());
    fieldDeserializer.parseField(parser, object, objectType, fieldValues);
    return true;
}

Example 25 with JSONException

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

the class JSONSerializer method write.

public final void write(Object object) {
    if (object == null) {
        out.writeNull();
        return;
    }
    Class<?> clazz = object.getClass();
    ObjectSerializer writer = getObjectWriter(clazz);
    try {
        writer.write(this, object, null, null, 0);
    } catch (IOException e) {
        throw new JSONException(e.getMessage(), e);
    }
}