2 * Copyright 2016 2015-2016 ZTE, Inc. and others. All rights reserved.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 * Copyright (C) 2016 ZTE, Inc. and others. All rights reserved. (ZTE)
19 * Licensed under the Apache License, Version 2.0 (the "License");
20 * you may not use this file except in compliance with the License.
21 * You may obtain a copy of the License at
23 * http://www.apache.org/licenses/LICENSE-2.0
25 * Unless required by applicable law or agreed to in writing, software
26 * distributed under the License is distributed on an "AS IS" BASIS,
27 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
28 * See the License for the specific language governing permissions and
29 * limitations under the License.
32 package org.openo.msb.wrapper.consul.util;
34 import com.fasterxml.jackson.core.JsonParser;
35 import com.fasterxml.jackson.databind.DeserializationContext;
36 import com.fasterxml.jackson.databind.JsonDeserializer;
37 import com.google.common.base.Optional;
38 import com.google.common.io.BaseEncoding;
39 import org.apache.commons.lang3.StringUtils;
41 import java.io.IOException;
44 * For use with JSON fields that Consul Base 64 encodes.
46 public class Base64EncodingDeserializer extends JsonDeserializer<Optional<String>> {
52 public Optional<String> deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
53 String value = p.getValueAsString();
55 if (StringUtils.isNotEmpty(value)) {
56 return Optional.of(new String(BaseEncoding.base64().decode(value)));
58 return Optional.absent();