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/**
* Copyright 2016 ZTE Corporation.
*
* Licensed 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.
*/
/**
* Copyright (C) 2016 ZTE, Inc. and others. All rights reserved. (ZTE)
*
* Licensed 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.openo.msb.wrapper.consul.util;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.google.common.base.Optional;
import com.google.common.io.BaseEncoding;
import org.apache.commons.lang3.StringUtils;
import java.io.IOException;
/**
* For use with JSON fields that Consul Base 64 encodes.
*/
public class Base64EncodingDeserializer extends JsonDeserializer<Optional<String>> {
/**
* {@inheritDoc}
*/
@Override
public Optional<String> deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
String value = p.getValueAsString();
if (StringUtils.isNotEmpty(value)) {
return Optional.of(new String(BaseEncoding.base64().decode(value)));
}
return Optional.absent();
}
}
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