com.ericsson.gerrit.plugins.highavailability.forwarder.rest.HttpResponseHandler.java Source code

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Here is the source code for com.ericsson.gerrit.plugins.highavailability.forwarder.rest.HttpResponseHandler.java

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// Copyright (C) 2015 The Android Open Source Project
//
// 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 com.ericsson.gerrit.plugins.highavailability.forwarder.rest;

import static javax.servlet.http.HttpServletResponse.SC_NO_CONTENT;

import com.ericsson.gerrit.plugins.highavailability.forwarder.rest.HttpResponseHandler.HttpResult;
import java.io.IOException;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ResponseHandler;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

class HttpResponseHandler implements ResponseHandler<HttpResult> {

    static class HttpResult {
        private final boolean successful;
        private final String message;

        HttpResult(boolean successful, String message) {
            this.successful = successful;
            this.message = message;
        }

        boolean isSuccessful() {
            return successful;
        }

        String getMessage() {
            return message;
        }
    }

    private static final Logger log = LoggerFactory.getLogger(HttpResponseHandler.class);

    @Override
    public HttpResult handleResponse(HttpResponse response) {
        return new HttpResult(isSuccessful(response), parseResponse(response));
    }

    private static boolean isSuccessful(HttpResponse response) {
        return response.getStatusLine().getStatusCode() == SC_NO_CONTENT;
    }

    private static String parseResponse(HttpResponse response) {
        HttpEntity entity = response.getEntity();
        String asString = "";
        if (entity != null) {
            try {
                asString = EntityUtils.toString(entity);
            } catch (IOException e) {
                log.error("Error parsing entity", e);
            }
        }
        return asString;
    }
}