com.lajospolya.spotifyapiwrapper.request.GetMeFollowing Maven / Gradle / Ivy

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This project wraps the Spotify public API in order to allow users to intuitively use it

There is a newer version: 3.0.RELEASE

package com.lajospolya.spotifyapiwrapper.request;

import com.lajospolya.spotifyapiwrapper.enumeration.FollowType;
import com.lajospolya.spotifyapiwrapper.response.Following;

/**
 * @author Lajos Polya
 *
 * Represents the endpoint at GET https://api.spotify.com/v1/me/following as descrbibed at
 * https://developer.spotify.com/documentation/web-api/reference-beta/
 */
public class GetMeFollowing extends AbstractSpotifyRequest
{
    private static final String REQUEST_URI_STRING = SPOTIFY_V1_API_URI +  "me/following";

    private GetMeFollowing(SpotifyRequestBuilder requestBuilder)
    {
        super(requestBuilder);
    }

    public static class Builder extends CacheableRequestBuilder
    {
        private FollowType type;
        private Integer limit;
        private String after;

        public Builder(FollowType type) throws IllegalArgumentException
        {
            spotifyRequestParamValidationService.validateParametersNotNull(type);
            this.type = type;
        }

        @Override
        public GetMeFollowing build()
        {
            SpotifyRequestBuilder spotifyRequestBuilder = new SpotifyRequestBuilder(REQUEST_URI_STRING);
            spotifyRequestBuilder.queryParam(TYPE_QUERY_PARAM, type.getName());
            addOptionalQueryParams(spotifyRequestBuilder);
            addEtagHeader(spotifyRequestBuilder);
            return new GetMeFollowing(spotifyRequestBuilder.GET());
        }

        private void addOptionalQueryParams(SpotifyRequestBuilder requestUriBuilder)
        {
            if(limit != null)
            {
                requestUriBuilder.queryParam(LIMIT_QUERY_PARAM, limit);
            }
            if(after != null)
            {
                requestUriBuilder.queryParam(AFTER_QUERY_PARAM, after);
            }
        }

        public Builder limit(Integer limit)
        {
            spotifyRequestParamValidationService.validateLimit50(limit);
            this.limit = limit;
            return this;
        }

        public Builder after(String after)
        {
            this.after = after;
            return this;
        }

        @Override
        public Builder etag(String etag)
        {
            this.etag = etag;
            return this;
        }
    }
}