src/main/java/org/onap/nbi/exceptions/BackendErrorHandler.java


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/**
 *     Copyright (c) 2018 Orange
 *
 *     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.onap.nbi.exceptions;

import java.io.IOException;
import java.nio.charset.StandardCharsets;
import org.apache.commons.io.IOUtils;
import org.springframework.http.client.ClientHttpResponse;
import org.springframework.web.client.DefaultResponseErrorHandler;
import org.springframework.web.client.ResponseErrorHandler;

public class BackendErrorHandler implements ResponseErrorHandler {

    private ResponseErrorHandler errorHandler = new DefaultResponseErrorHandler();

    @Override
    public boolean hasError(ClientHttpResponse response) throws IOException {
        return errorHandler.hasError(response);
    }

    @Override
    public void handleError(ClientHttpResponse response) throws IOException {
        if (response.getStatusCode() != null) {
            String body = null;
            if (response.getBody() != null) {
                body = IOUtils.toString(response.getBody(), StandardCharsets.UTF_8.name());
            }

            throw new BackendFunctionalException(response.getStatusCode(), response.getStatusText(), body);
        }
    }
}