net.openhft.chronicle.analytics.internal.JsonUtil Maven / Gradle / Ivy

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/*
 * Copyright 2016-2022 chronicle.software
 *
 *       https://chronicle.software
 *
 * Licensed under the Apache License, 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.apache.org/licenses/LICENSE-2.0
 *
 * 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 net.openhft.chronicle.analytics.internal;

final class JsonUtil {

    private static final String NL = String.format("%n");

    private JsonUtil() {
    }

    static String jsonElement(final String indent,
                              final String key,
                              final Object value) {
        return indent + asElement(key) + ": " + asElement(value);
    }

    static String asElement(final Object value) {
        return value instanceof CharSequence
                ? '"' + escape(value.toString()) + '"'
                : value.toString();

    }

    static String escape(final String raw) {
        return raw
                .replace("\\", "\\\\")
                .replace("\"", "\\\"")
                .replace("\b", "\\b")
                .replace("\f", "\\f")
                .replace("\n", "\\n")
                .replace("\r", "\\r")
                .replace("\t", "\\t");
        // Todo: escape other non-printing characters ...
    }

    static String nl() {
        return NL;
    }
}