com.alibaba.fastjson.serializer.SerialContext Maven / Gradle / Ivy

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Adapter alibaba fastjson to other json libraries. the fastjson version: 1.2.58
There is a newer version: 3.2.26
/*
 * Copyright 2019 the original author or authors.
 *
 * Licensed under the Apache, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at  http://www.gnu.org/licenses/lgpl-3.0.html
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.alibaba.fastjson.serializer;

public class SerialContext {

    public final SerialContext parent;
    public final Object object;
    public final Object fieldName;
    public final int features;

    public SerialContext(SerialContext parent, Object object, Object fieldName, int features, int fieldFeatures) {
        this.parent = parent;
        this.object = object;
        this.fieldName = fieldName;
        this.features = features;
    }

    public String toString() {
        if (parent == null) {
            return "$";
        } else {
            StringBuilder buf = new StringBuilder();
            toString(buf);
            return buf.toString();
        }
    }

    protected void toString(StringBuilder buf) {
        if (parent == null) {
            buf.append('$');
        } else {
            parent.toString(buf);
            if (fieldName == null) {
                buf.append(".null");
            } else if (fieldName instanceof Integer) {
                buf.append('[');
                buf.append(((Integer) fieldName).intValue());
                buf.append(']');
            } else {
                buf.append('.');

                String fieldName = this.fieldName.toString();
                boolean special = false;
                for (int i = 0; i < fieldName.length(); ++i) {
                    char ch = fieldName.charAt(i);
                    if ((ch >= '0' && ch <= '9') || (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z') || ch > 128) {
                        continue;
                    }
                    special = true;
                    break;
                }

                if (special) {
                    for (int i = 0; i < fieldName.length(); ++i) {
                        char ch = fieldName.charAt(i);
                        if (ch == '\\') {
                            buf.append('\\');
                            buf.append('\\');
                            buf.append('\\');
                        } else if ((ch >= '0' && ch <= '9') || (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z') || ch > 128) {
                            buf.append(ch);
                            continue;
                        } else {
                            buf.append('\\');
                            buf.append('\\');
                        }
                        buf.append(ch);
                    }
                } else {
                    buf.append(fieldName);
                }
            }
        }
    }

    /**
     * @deprecated
     */
    public SerialContext getParent() {
        return parent;
    }

    /**
     * @deprecated
     */
    public Object getObject() {
        return object;
    }

    /**
     * @deprecated
     */
    public Object getFieldName() {
        return fieldName;
    }

    /**
     * @deprecated
     */
    public String getPath() {
        return toString();
    }
}