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FactSet SDK for Java - factsetpeople
There is a newer version: 2.0.2
/*
 * FactSet People API
 * The FactSet People API exposes FactSet data for individuals and their jobs.This API is rate-limited to 10 requests per second and 10 concurrent requests per user. 
 *
 * The version of the OpenAPI document: 1.3.0
 * Contact: [email protected]
 *
 * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
 * https://openapi-generator.tech
 * Do not edit the class manually.
 */


package com.factset.sdk.FactSetPeople.auth;

import com.factset.sdk.FactSetPeople.Pair;
import com.factset.sdk.FactSetPeople.ApiException;
import com.github.scribejava.core.builder.ServiceBuilder;
import com.github.scribejava.core.builder.api.DefaultApi20;
import com.github.scribejava.core.exceptions.OAuthException;
import com.github.scribejava.core.model.OAuth2AccessToken;
import com.github.scribejava.core.oauth.OAuth20Service;

import jakarta.ws.rs.core.UriBuilder;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URI;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import java.util.logging.Level;
import java.util.logging.Logger;

@jakarta.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")

public class OAuth implements Authentication {
    private static final Logger log = Logger.getLogger(OAuth.class.getName());

    private String tokenUrl;
    private String absoluteTokenUrl;
    private OAuthFlow flow = OAuthFlow.application;
    private OAuth20Service service;
    private DefaultApi20 authApi;
    private String scope;
    private String username;
    private String password;
    private String code;
    private volatile OAuth2AccessToken accessToken;

    public OAuth(String basePath, String tokenUrl) {
        this.tokenUrl = tokenUrl;
        this.absoluteTokenUrl = createAbsoluteTokenUrl(basePath, tokenUrl);
        authApi = new DefaultApi20() {
            @Override
            public String getAccessTokenEndpoint() {
              return absoluteTokenUrl;
            }

            @Override
            protected String getAuthorizationBaseUrl() {
              throw new UnsupportedOperationException("Shouldn't get there !");
            }
        };
    }

    private static String createAbsoluteTokenUrl(String basePath, String tokenUrl) {
        if (!URI.create(tokenUrl).isAbsolute()) {
            try {
                return UriBuilder.fromPath(basePath).path(tokenUrl).build().toURL().toString();
            } catch (MalformedURLException e) {
                log.log(Level.SEVERE, "Couldn't create absolute token URL", e);
            }
        }
        return tokenUrl;
    }

    @Override
    public void applyToParams(
        List queryParams,
        Map headerParams,
        Map cookieParams,
        String payload,
        String method,
        URI uri)
        throws ApiException {

        if (accessToken == null) {
            obtainAccessToken(null);
        }
        if (accessToken != null) {
            headerParams.put("Authorization", "Bearer " + accessToken.getAccessToken());
        }
    }

    public OAuth2AccessToken renewAccessToken() throws ApiException {
        String refreshToken = null;
        if (accessToken != null) {
            refreshToken = accessToken.getRefreshToken();
            accessToken = null;
        }
        return obtainAccessToken(refreshToken);
    }

    public synchronized OAuth2AccessToken obtainAccessToken(String refreshToken) throws ApiException {
        if (service == null) {
            log.log(Level.FINE, "service is null in obtainAccessToken.");
            return null;
        }
        try {
            if (refreshToken != null) {
                return service.refreshAccessToken(refreshToken);
            }
        } catch (OAuthException | InterruptedException | ExecutionException | IOException e) {
            log.log(Level.FINE, "Refreshing the access token using the refresh token failed", e);
        }
        try {
            switch (flow) {
                case password:
                    if (username != null && password != null) {
                        accessToken = service.getAccessTokenPasswordGrant(username, password, scope);
                    }
                    break;
                case accessCode:
                    if (code != null) {
                        accessToken = service.getAccessToken(code);
                        code = null;
                    }
                    break;
                case application:
                    accessToken = service.getAccessTokenClientCredentialsGrant(scope);
                    break;
                default:
                    log.log(Level.SEVERE, "Invalid flow in obtainAccessToken: " + flow);
            }
        } catch (OAuthException | InterruptedException | ExecutionException | IOException e) {
            throw new ApiException(e);
        }
        return accessToken;
    }

    public OAuth2AccessToken getAccessToken() {
        return accessToken;
    }

    public OAuth setAccessToken(OAuth2AccessToken accessToken) {
        this.accessToken = accessToken;
        return this;
    }

    public OAuth setAccessToken(String accessToken) {
        this.accessToken = new OAuth2AccessToken(accessToken);
        return this;
    }

    public OAuth setScope(String scope) {
       this.scope = scope;
       return this;
    }

    public OAuth setCredentials(String clientId, String clientSecret, Boolean debug) {
        if (Boolean.TRUE.equals(debug)) {
            service = new ServiceBuilder(clientId)
                .apiSecret(clientSecret).debug()
                .build(authApi);
        } else {
            service = new ServiceBuilder(clientId)
                .apiSecret(clientSecret)
                .build(authApi);
        }
        return this;
    }

    public OAuth usePasswordFlow(String username, String password) {
        this.flow = OAuthFlow.password;
        this.username = username;
        this.password = password;
        return this;
    }

    public OAuth useAuthorizationCodeFlow(String code) {
        this.flow = OAuthFlow.accessCode;
        this.code = code;
        return this;
    }

    public OAuth setFlow(OAuthFlow flow) {
        this.flow = flow;
        return this;
    }

    public void setBasePath(String basePath) {
        this.absoluteTokenUrl = createAbsoluteTokenUrl(basePath, tokenUrl);
    }
}