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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 2020 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;

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

import com.google.api.client.http.HttpRequest;
import com.google.api.client.http.HttpResponse;
import com.google.api.client.http.HttpResponseException;
import com.google.common.collect.ImmutableMap;
import com.google.firebase.database.annotations.Nullable;
import java.util.Map;

/**
 * Contains information that describes an HTTP response received by the SDK.
 */
public final class IncomingHttpResponse {

  private final int statusCode;
  private final String content;
  private final Map headers;
  private final OutgoingHttpRequest request;

  /**
   * Creates an {@code IncomingHttpResponse} from a successful response and the content read
   * from it. The caller is expected to read the content from the response, and handle any errors
   * that may occur while reading.
   *
   * @param response A successful response.
   * @param content Content read from the response.
   */
  public IncomingHttpResponse(HttpResponse response, @Nullable String content) {
    checkNotNull(response, "response must not be null");
    this.statusCode = response.getStatusCode();
    this.content = content;
    this.headers = ImmutableMap.copyOf(response.getHeaders());
    this.request = new OutgoingHttpRequest(response.getRequest());
  }

  /**
   * Creates an {@code IncomingHttpResponse} from an HTTP error response.
   *
   * @param e The exception representing the HTTP error response.
   * @param request The request that resulted in the error.
   */
  public IncomingHttpResponse(HttpResponseException e, HttpRequest request) {
    this(e, new OutgoingHttpRequest(request));
  }

  /**
   * Creates an {@code IncomingHttpResponse} from an HTTP error response.
   *
   * @param e The exception representing the HTTP error response.
   * @param request The request that resulted in the error.
   */
  public IncomingHttpResponse(HttpResponseException e, OutgoingHttpRequest request) {
    checkNotNull(e, "exception must not be null");
    this.statusCode = e.getStatusCode();
    this.content = e.getContent();
    this.headers = ImmutableMap.copyOf(e.getHeaders());
    this.request = checkNotNull(request, "request must not be null");
  }

  /**
   * Returns the status code of the response.
   *
   * @return An HTTP status code (e.g. 500).
   */
  public int getStatusCode() {
    return this.statusCode;
  }

  /**
   * Returns the content of the response as a string.
   *
   * @return HTTP content or null.
   */
  @Nullable
  public String getContent() {
    return this.content;
  }

  /**
   * Returns the headers set on the response.
   *
   * @return An immutable map of headers (possibly empty).
   */
  public Map getHeaders() {
    return this.headers;
  }

  /**
   * Returns the request that resulted in this response.
   *
   * @return An HTTP request.
   */
  public OutgoingHttpRequest getRequest() {
    return request;
  }
}