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A simple but powerful web server framework

There is a newer version: 2.0.3

package io.muserver.openapi;

import java.io.IOException;
import java.io.Writer;
import java.util.Map;
import java.util.regex.Pattern;

import static io.muserver.openapi.Jsonizer.append;

/**
 * @see ComponentsObjectBuilder
 */
public class ComponentsObject implements JsonWriter {

    public final Map schemas;
    public final Map responses;
    public final Map parameters;
    public final Map examples;
    public final Map requestBodies;
    public final Map headers;
    public final Map securitySchemes;
    public final Map links;
    public final Map callbacks;

    ComponentsObject(Map schemas, Map responses, Map parameters, Map examples, Map requestBodies, Map headers, Map securitySchemes, Map links, Map callbacks) {
        checkKey(schemas, responses, parameters, examples, requestBodies, headers, securitySchemes, links, callbacks);
        this.schemas = schemas;
        this.responses = responses;
        this.parameters = parameters;
        this.examples = examples;
        this.requestBodies = requestBodies;
        this.headers = headers;
        this.securitySchemes = securitySchemes;
        this.links = links;
        this.callbacks = callbacks;
    }

    private void checkKey(Map... maps) {
        Pattern keyPattern = Pattern.compile("^[a-zA-Z0-9.\\-_]+$");

        for (Map map : maps) {
            if (map != null) {
                for (String key : map.keySet()) {
                    if (!keyPattern.matcher(key).matches()) {
                        throw new IllegalArgumentException("The value '" + key + "' is not a valid key. It must match " + keyPattern);
                    }
                }
            }
        }
    }

    @Override
    public void writeJson(Writer writer) throws IOException {
        writer.write('{');
        boolean isFirst = true;
        isFirst = append(writer, "schemas", schemas, isFirst);
        isFirst = append(writer, "responses", responses, isFirst);
        isFirst = append(writer, "parameters", parameters, isFirst);
        isFirst = append(writer, "examples", examples, isFirst);
        isFirst = append(writer, "requestBodies", requestBodies, isFirst);
        isFirst = append(writer, "headers", headers, isFirst);
        isFirst = append(writer, "securitySchemes", securitySchemes, isFirst);
        isFirst = append(writer, "links", links, isFirst);
        isFirst = append(writer, "callbacks", callbacks, isFirst);
        writer.write('}');
    }
}