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This is the official Firebase Admin Java SDK. Build extraordinary native JVM apps in minutes with Firebase. The Firebase platform can power your app’s backend, user authentication, static hosting, and more.

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/*
 * Copyright 2017 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.firebase.auth;

import static com.google.common.base.Preconditions.checkArgument;

import com.google.api.client.util.Key;
import com.google.common.base.Strings;

/**
 * Represents a user identity provider that can be associated with a Firebase user.
 */
public final class UserProvider {

  @Key("rawId")
  private final String uid;

  @Key("displayName")
  private final String displayName;

  @Key("email")
  private final String email;

  @Key("photoUrl")
  private final String photoUrl;

  @Key("providerId")
  private final String providerId;

  private UserProvider(Builder builder) {
    checkArgument(!Strings.isNullOrEmpty(builder.uid), "Uid must not be null or empty");
    checkArgument(!Strings.isNullOrEmpty(builder.providerId),
        "ProviderId must not be null or empty");
    this.uid = builder.uid;
    this.displayName = builder.displayName;
    this.email = builder.email;
    this.photoUrl = builder.photoUrl;
    this.providerId = builder.providerId;
  }

  /**
   * Creates a new {@link UserProvider.Builder}.
   *
   * @return A {@link UserProvider.Builder} instance.
   */
  public static Builder builder() {
    return new Builder();
  }

  public static class Builder {

    private String uid;
    private String displayName;
    private String email;
    private String photoUrl;
    private String providerId;

    private Builder() {}

    /**
     * Sets the user's unique ID assigned by the identity provider. This field is required.
     *
     * @param uid a user ID string.
     * @return This builder.
     */
    public Builder setUid(String uid) {
      this.uid = uid;
      return this;
    }

    /**
     * Sets the user's display name.
     *
     * @param displayName display name of the user.
     * @return This builder.
     */
    public Builder setDisplayName(String displayName) {
      this.displayName = displayName;
      return this;
    }

    /**
     * Sets the user's email address.
     *
     * @param email an email address string.
     * @return This builder.
     */
    public Builder setEmail(String email) {
      this.email = email;
      return this;
    }

    /**
     * Sets the photo URl of the user.
     *
     * @param photoUrl a photo URL string.
     * @return This builder.
     */
    public Builder setPhotoUrl(String photoUrl) {
      this.photoUrl = photoUrl;
      return this;
    }

    /**
     * Sets the ID of the identity provider. This can be a short domain name (e.g. google.com) or
     * the identifier of an OpenID identity provider. This field is required.
     *
     * @param providerId an ID string that uniquely identifies the identity provider.
     * @return This builder.
     */
    public Builder setProviderId(String providerId) {
      this.providerId = providerId;
      return this;
    }

    /**
     * Builds a new {@link UserProvider}.
     *
     * @return A non-null {@link UserProvider}.
     */
    public UserProvider build() {
      return new UserProvider(this);
    }
  }
}