| /** |
| * 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.apex.malhar.lib.io; |
| |
| import javax.ws.rs.core.MultivaluedMap; |
| |
| import com.sun.jersey.api.client.WebResource; |
| |
| /** |
| * This is the base implementation of an HTTP get operator, |
| * which extracts query parameters from an incoming tuple and places the parameters in a multivalued map. |
| * Subclasses should implement the method used to convert tuples into query parameters. |
| * <p></p> |
| * @displayName Abstract HTTP Multivalued Query Input |
| * @category Input |
| * @tags http, input operator |
| * |
| * @param <INPUT> |
| * @param <OUTPUT> |
| * @since 1.0.2 |
| */ |
| @org.apache.hadoop.classification.InterfaceStability.Evolving |
| public abstract class AbstractHttpGetMultiValuedMapOperator<INPUT, OUTPUT> extends AbstractHttpGetOperator<INPUT, OUTPUT> |
| { |
| @Override |
| protected WebResource getResourceWithQueryParams(INPUT t) |
| { |
| WebResource wr = wsClient.resource(url); |
| wr = wr.queryParams(getQueryParams(t)); |
| |
| return wr; |
| } |
| |
| protected abstract MultivaluedMap<String, String> getQueryParams(INPUT input); |
| |
| } |