com.heroku.api.http.Http Maven / Gradle / Ivy

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package com.heroku.api.http;

import com.heroku.api.Heroku;

import java.util.HashMap;
import java.util.Map;

/**
 * Simple abstraction for HTTP request/response values.
 */
public class Http {
    /**
     * HTTP Accept header model.
     */
    public static enum Accept implements Header {
        JSON("application/json"),
        XML("text/xml"),
        TEXT("text/plain");

        private String value;
        static String ACCEPT = "Accept";

        Accept(String val) {
            this.value = val;
        }

        @Override
        public String getHeaderName() {
            return ACCEPT;
        }

        @Override
        public String getHeaderValue() {
            return value;
        }

    }

    /**
     * HTTP Content-Type header model.
     */
    public static enum ContentType implements Header {
        FORM_URLENCODED("application/x-www-form-urlencoded"),
        SSH_AUTHKEY("text/ssh-authkey");

        private String value;
        static String CONTENT_TYPE = "Content-Type";

        ContentType(String val) {
            this.value = val;
        }

        @Override
        public String getHeaderName() {
            return CONTENT_TYPE;
        }

        @Override
        public String getHeaderValue() {
            return value;
        }

    }

    /**
     * HTTP User-Agent header model.
     */
    public static enum UserAgent implements Header {
        LATEST("heroku.jar-%s-v%s");

        static final String USER_AGENT = "User-Agent";
        private final String userAgent;

        UserAgent(String userAgent) {
            this.userAgent = userAgent;
        }

        @Override
        public String getHeaderName() {
            return USER_AGENT;
        }

        @Override
        public String getHeaderValue() {
          return getHeaderValue("unspecified");
        }

        public String getHeaderValue(String customPart) {
            return String.format(userAgent, customPart, Heroku.JarProperties.getProperty("heroku.jar.version"));
        }
    }

    /**
     * Represent a name/value pair for a HTTP header. Not all are implemented. Only those used by the Heroku API.
     */
    public static interface Header {

        public static class Util {
            public static Map setHeaders(Header... headers) {
                Map headerMap = new HashMap();
                for (Header h : headers) {
                    headerMap.put(h.getHeaderName(), h.getHeaderValue());
                }
                return headerMap;
            }
        }

        String getHeaderName();

        String getHeaderValue();

    }

    /**
     * HTTP Methods. Not all are implemented. Only those used by the Heroku API.
     */
    public static enum Method {GET, PUT, POST, DELETE}

    /**
     * HTTP Status codes. Not all are implemented. Only those used by the Heroku API.
     */
    public static enum Status {
        OK(200), CREATED(201), ACCEPTED(202), PAYMENT_REQUIRED(402), FORBIDDEN(403), NOT_FOUND(404), UNPROCESSABLE_ENTITY(422);

        public final int statusCode;

        Status(int statusCode) {
            this.statusCode = statusCode;
        }
    }
}