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package org.qas.qtest.api.services.authenticate;

import org.qas.api.*;
import org.qas.api.auth.NoNeedSigner;
import org.qas.api.http.*;
import org.qas.api.http.basic.HttpUrlConnectionAuthClient;
import org.qas.api.internal.util.google.base.Throwables;
import org.qas.api.internal.util.json.JsonObject;
import org.qas.api.transform.JsonErrorUnmarshaller;
import org.qas.api.transform.Unmarshaller;
import org.qas.qtest.api.internal.QTestApiWebServiceClient;
import org.qas.qtest.api.services.authenticate.model.*;
import org.qas.qtest.api.services.authenticate.model.transform.*;
import org.qas.qtest.api.services.user.model.User;
import org.qas.qtest.api.services.user.model.transform.UserJsonUnmarshaller;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/**
 * AuthenticateServiceClient
 *
 * @author Dzung Nguyen
 * @version $Id AuthenticateServiceClient 2014-07-09 11:16:30z dungvnguyen $
 * @since 1.0
 */
public class AuthenticateServiceClient extends QTestApiWebServiceClient
    implements AuthenticateService {

  /**
   * Constructs a new client to invoke service method on AuthenticateService using
   * the default qTest credentials provider and default client configuration options.
   */
  public AuthenticateServiceClient() {
    this(new ClientConfiguration());
  }

  /**
   * Constructs a new client to invoke service method on AuthenticateService using
   * the default qTest credentials provider and client configuration options.
   *
   * @param clientConfiguration The client configuration options controlling how this
   *                            client connects to UserService
   */
  public AuthenticateServiceClient(ClientConfiguration clientConfiguration) {
    super(clientConfiguration);
    init();
  }

  @Override
  protected HttpAuthClient createHttpAuthClient(ClientConfiguration configuration) {
    return new HttpUrlConnectionAuthClient(configuration);
  }

  private  X invoke(Request request, HttpResponseHandler> responseHandler) {
    request.setEndpoint(endpoint);
    request.setTimeOffset(timeOffset);

    for (Map.Entry entry : request.getOriginalRequest().copyPrivateRequestParameters().entrySet()) {
      request.addParameter(entry.getKey(), entry.getValue());
    }

    ExecutionContext executionContext = createExecutionContext();
    executionContext.setSigner(new NoNeedSigner());
    executionContext.setCredentials(new Credentials() {});

    // handle error.
    List> exceptionsUnmarshallers = new ArrayList>();
    exceptionsUnmarshallers.add(new JsonErrorUnmarshaller());
    JsonErrorResponseHandler errorResponseHandler = new JsonErrorResponseHandler(exceptionsUnmarshallers);

    return (X)client.execute(request, responseHandler, errorResponseHandler, executionContext);
  }

  @Override
  public String authenticate(AuthenticateRequest authenticateRequest) throws AuthServiceException {
    try {
      // create request.
      Request request = new AuthenticateRequestMarshaller().marshall(authenticateRequest);

      // execute request.
      return invoke(request, new StringResponseHandler());
    } catch (Exception ex) {
      Throwables.propagateIfInstanceOf(ex, AuthClientException.class);
      throw new AuthClientException("Unknown exception occurs during authenticate to qTest service.", ex);
    }
  }

  @Override
  public User validate(ValidateTokenRequest validateTokenRequest) throws AuthServiceException {
    try {
      // create request and invoke.
      Request request = new ValidateTokenRequestMarshaller().marshall(validateTokenRequest);
      return invoke(request, new JsonResponseHandler(UserJsonUnmarshaller.getInstance()));
    } catch (Exception ex) {
      Throwables.propagateIfInstanceOf(ex, AuthClientException.class);
      throw new AuthClientException("Unknown exception occurs during validate token to qTest service.", ex);
    }
  }

  @Override
  public OAuthTokenResponse authenticate(OAuthAuthenticateRequest authenticateRequest) throws AuthServiceException {
    try {
      Request request = new OAuthAuthenticateRequestMarshaller().marshall(authenticateRequest);

      // execute request.
      return invoke(request, new JsonResponseHandler(OAuthTokenResponseJsonUnmarshaller.getInstance()));
    } catch (Exception ex) {
      Throwables.propagateIfInstanceOf(ex, AuthClientException.class);
      throw new AuthClientException("Unknown exception occurs during authenticate to qTest service via OAuth.", ex);
    }
  }

  @Override
  public OAuthTokenStatusResponse status(OAuthTokenStatusRequest statusRequest) throws AuthServiceException {
    try {
      Request request = new OAuthTokenStatusRequestMarshaller().marshall(statusRequest);

      // execute request.
      return invoke(request, new JsonResponseHandler(OAuthTokenStatusResponseJsonUnmarshaller.getInstance()));
    } catch (Exception ex) {
      Throwables.propagateIfInstanceOf(ex, AuthClientException.class);
      throw new AuthClientException("Unknown exception occurs during request status to qTest service via OAuth.", ex);
    }
  }

  @Override
  public OAuthTokenStatusResponse refresh(OAuthTokenRefreshRequest refreshRequest) throws AuthServiceException {
    try {
      Request request = new OAuthTokenRefreshRequestMarshaller().marshall(refreshRequest);

      // execute request.
      return invoke(request, new JsonResponseHandler(OAuthTokenStatusResponseJsonUnmarshaller.getInstance()));
    } catch (Exception ex) {
      Throwables.propagateIfInstanceOf(ex, AuthClientException.class);
      throw new AuthClientException("Unknown exception occurs during refresh token to qTest service via OAuth.", ex);
    }
  }
}