/*

* Copyright 2019-2020 OpenFeign Contributors

*

* 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 feign.decoder;

import feign.Response;

import java.io.IOException;

import java.nio.charset.StandardCharsets;

/**

* Response Decoder that reads the response buffer and converts it to a

* UTF-8 String.

*/

public class StringDecoder extends AbstractResponseDecoder {

@SuppressWarnings("unchecked")

@Override

protected <T> T decodeInternal(Response response, Class<T> type) {

if (String.class.equals(type)) {

try {

/* ready the body into a string */

return (T) new String(response.toByteArray(), StandardCharsets.UTF_8);

} catch (IOException ioe) {

throw new IllegalStateException("Error occurred reading response: " + ioe, ioe);

}

}

throw new IllegalArgumentException("Error occurred while decoding the Response, "

+ "type: " + type.getSimpleName() + " is not supported by this decoder.");

}

}