2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Copyright (C) 2017 Amdocs
8 * =============================================================================
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
21 * ============LICENSE_END=========================================================
24 package org.onap.appc.client.impl.protocol;
26 import java.util.HashMap;
29 public class ProtocolFactory {
31 private static ProtocolFactory instance;
32 private Map<ProtocolType,Protocol> protocols;
37 private ProtocolFactory(){
39 protocols = new HashMap<ProtocolType, Protocol>();
43 * get factory instance
44 * @return factory instance
46 public static synchronized ProtocolFactory getInstance(){
48 if (instance == null) {
49 instance = new ProtocolFactory();
55 * returns instantiated protocol object
56 * @param type of protocol object
57 * @return protocol object
59 public Protocol getProtocolObject(ProtocolType type) throws ProtocolException {
61 Protocol protocol = protocols.get(type);
63 if (protocol == null) {
66 throw new ProtocolException("Protocol SYNC is not implemented");
68 protocol = new AsyncProtocolImpl();
69 protocols.put(type, protocol);
72 throw new ProtocolException("Protocol type not found");