/** * 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 Input stream for Ambari cluster */ public interface AmbariClusterStreamProvider { /** * Read from the input stream specified by the given path for cluster on Ambari server. * Base path will be /api/v1/clusters/${clusterName} * * @param path the String to parse as an Ambari cluster endpoint (e.g. /configurations) * @param requestMethod the HTTP method (GET,POST,PUT,etc.). * @param body the body of the request; may be null * @param headers the headers of the request; may be null * * @return the input stream * * @throws IOException, AmbariHttpException */ public InputStream readFromCluster(String path, String requestMethod, String body, Map<String, String> headers) throws IOException, AmbariHttpException; /** * Read from the input stream specified by the given path for cluster on Ambari server. * Base path will be /api/v1/clusters/${clusterName} * * @param path the String to parse as an Ambari cluster endpoint (e.g. /configurations) * @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 IOException, AmbariHttpException */ public InputStream readFromCluster(String path, String requestMethod, InputStream body, Map<String, String> headers) throws IOException, AmbariHttpException; /** * Read from the input stream specified by the given path for cluster on the Ambari server. * * @param path the String to parse as an Ambari endpoint (e.g. /api/v1) * @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 * AmbariHttpException if response to url is unsuccessful */ public InputStream readFromAmbari(String path, String requestMethod, String body, Map<String, String> headers) throws IOException, AmbariHttpException; /** * Read from the input stream specified by the given path for cluster on the Ambari server. * * @param path the String to parse as an Ambari endpoint (e.g. /api/v1) * @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 , * AmbariHttpException if response to url is unsuccessful */ public InputStream readFromAmbari(String path, String requestMethod, InputStream body, Map<String, String> headers) throws IOException, AmbariHttpException; }