fm.last.musicbrainz.coverart.impl.FetchJsonListingResponseHandler.java Source code

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Here is the source code for fm.last.musicbrainz.coverart.impl.FetchJsonListingResponseHandler.java

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/*
 * Copyright 2012 Last.fm
 *
 *  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 fm.last.musicbrainz.coverart.impl;

import java.io.IOException;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.StatusLine;
import org.apache.http.client.HttpResponseException;
import org.apache.http.client.ResponseHandler;
import org.apache.http.util.EntityUtils;

import fm.last.musicbrainz.coverart.util.HttpUtil;

enum FetchJsonListingResponseHandler implements ResponseHandler<String> {
    /* */
    INSTANCE;

    @Override
    public String handleResponse(HttpResponse response) throws IOException {
        StatusLine statusLine = response.getStatusLine();
        HttpEntity entity = response.getEntity();

        if (statusLine.getStatusCode() == HttpStatus.SC_OK) {
            return EntityUtils.toString(entity);
        } else if (statusLine.getStatusCode() == HttpStatus.SC_NOT_FOUND) {
            return null;
        }
        HttpUtil.consumeEntity(entity);
        throw new HttpResponseException(statusLine.getStatusCode(), statusLine.getReasonPhrase());
    }
}