io.jsonwebtoken.io.ExceptionPropagatingDecoder Maven / Gradle / Ivy
/*
* Copyright (C) 2014 jsonwebtoken.io
*
* 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 io.jsonwebtoken.io;
import io.jsonwebtoken.lang.Assert;
/**
* @since 0.10.0
*/
class ExceptionPropagatingDecoder implements Decoder {
private final Decoder decoder;
ExceptionPropagatingDecoder(Decoder decoder) {
Assert.notNull(decoder, "Decoder cannot be null.");
this.decoder = decoder;
}
@Override
public R decode(T t) throws DecodingException {
Assert.notNull(t, "Decode argument cannot be null.");
try {
return decoder.decode(t);
} catch (DecodingException e) {
throw e; //propagate
} catch (Exception e) {
String msg = "Unable to decode input: " + e.getMessage();
throw new DecodingException(msg, e);
}
}
}