content: /**
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.ambari.view;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.util.Map;
  
  /**
   * Provider of an input stream for a request to the Ambari server.
   */
  public interface AmbariStreamProvider {
    /**
     * Read from the input stream specified by the given path on the Ambari server.
     *
     * @param path              the String to parse as an Ambari endpoint (e.g. /api/v1/users)
     * @param requestMethod     the HTTP method (GET,POST,PUT,etc.).
     * @param body              the body of the request; may be null
     * @param headers           the headers of the request; may be null
     *
     * @return the input stream
     *
     * @throws java.io.IOException if an error occurred connecting to the server
     */
    public InputStream readFrom(String path, String requestMethod, String body,
                                Map<String, String> headers) throws IOException,AmbariHttpException;
  
    /**
     * Read from the input stream specified by the given path on the Ambari server.
     *
     * @param path              the String to parse as an Ambari endpoint (e.g. /api/v1/users)
     * @param requestMethod     the HTTP method (GET,POST,PUT,etc.).
     * @param body              the body of the request; may be null
     * @param headers           the headers of the request; may be null
     *
     * @return the input stream
     *
     * @throws java.io.IOException if an error occurred connecting to the server
     */
    public InputStream readFrom(String path, String requestMethod, InputStream body,
                                Map<String, String> headers) throws IOException,AmbariHttpException;
  }
  