io.mstream.trader.commons.config.model.BaseUrl Maven / Gradle / Ivy

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package io.mstream.trader.commons.config.model;


import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import io.mstream.trader.commons.utils.Preconditions;

import static java.lang.String.format;

public class BaseUrl {

    private final String url;

    @JsonCreator
    public BaseUrl(
            @JsonProperty(value = "protocol", required = true) String protocol,
            @JsonProperty(value = "host", required = true) String host,
            @JsonProperty(value = "port") Integer port,
            @JsonProperty(value = "basePath") String basePath
    ) {
        Preconditions.checkNotEmpty("protocol", protocol);
        Preconditions.checkNotEmpty("host", host);
        url = format(
                "%s://%s:%d%s",
                protocol,
                host,
                defaultPort(port, protocol),
                defaultBasePath(basePath)
        );
    }

    private int defaultPort(Integer port, String protocol) {
        if (port != null) {
            return port;
        }
        switch (protocol) {
            case "http":
                return 80;
            case "https":
                return 443;
            default:
                throw new IllegalArgumentException(
                        format(
                                "can't guess the default port for %s protocol",
                                protocol
                        )
                );
        }
    }

    private String defaultBasePath(String basePath) {
        return basePath == null ? "" : basePath;
    }

    public String url() {
        return url;
    }

}