com.github.tomakehurst.wiremock.recording.ResponseDefinitionBodyMatcherDeserializer Maven / Gradle / Ivy

Go to download
/*
 * Copyright (C) 2011 Thomas Akehurst
 *
 * 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 com.github.tomakehurst.wiremock.recording;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonNode;

import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class ResponseDefinitionBodyMatcherDeserializer extends JsonDeserializer {
    @Override
    public ResponseDefinitionBodyMatcher deserialize(JsonParser parser, DeserializationContext context) throws IOException {
        JsonNode rootNode = parser.readValueAsTree();
        return new ResponseDefinitionBodyMatcher(
            parseJsonNode(rootNode.get("textSizeThreshold")),
            parseJsonNode(rootNode.get("binarySizeThreshold"))
        );
    }

    public static long parseJsonNode(JsonNode node) {
        if (node == null || node.isNull()) {
            return Long.MAX_VALUE;
        } else if (node.isNumber()) {
            return node.asLong();
        } else {
            return parseFilesize(node.textValue());
        }
    }

    // Converts a human-readable file size string (e.g. "10,100 KB") to bytes
    // Partially based off https://stackoverflow.com/a/12090818
    public static long parseFilesize(String in) {
        String cleanedInput = in.trim().replaceAll(",",".");

        final Matcher m = Pattern
            .compile("^([\\d.]+)\\s*(\\w)?b?$", Pattern.CASE_INSENSITIVE)
            .matcher(cleanedInput);
        if (!m.find()) {
            throw new IllegalArgumentException("Invalid size string: \"" + in + "\"");
        }

        int scale = 1;
        if (m.group(2) != null) {
            switch (m.group(2).toUpperCase()) {
                case "G":
                    scale *= 1024;
                case "M":
                    scale *= 1024;
                case "K":
                    scale *= 1024;
                    break;
                default:
                    throw new IllegalArgumentException("Invalid size unit: " + m.group(2));
            }
        }
        return Math.round(Double.parseDouble(m.group(1)) * scale);
    }
}