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/*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package ch.boye.httpclientandroidlib.impl.client;
import java.io.IOException;
import ch.boye.httpclientandroidlib.HttpEntity;
import ch.boye.httpclientandroidlib.HttpResponse;
import ch.boye.httpclientandroidlib.StatusLine;
import ch.boye.httpclientandroidlib.annotation.Immutable;
import ch.boye.httpclientandroidlib.client.HttpResponseException;
import ch.boye.httpclientandroidlib.client.ResponseHandler;
import ch.boye.httpclientandroidlib.util.EntityUtils;
/**
* A {@link ResponseHandler} that returns the response body as a String
* for successful (2xx) responses. If the response code was >= 300, the response
* body is consumed and an {@link HttpResponseException} is thrown.
* <p/>
* If this is used with
* {@link ch.boye.httpclientandroidlib.client.HttpClient#execute(
* ch.boye.httpclientandroidlib.client.methods.HttpUriRequest, ResponseHandler)},
* HttpClient may handle redirects (3xx responses) internally.
*
* @since 4.0
*/
@Immutable
public class BasicResponseHandler implements ResponseHandler<String> {
/**
* Returns the response body as a String if the response was successful (a
* 2xx status code). If no response body exists, this returns null. If the
* response was unsuccessful (>= 300 status code), throws an
* {@link HttpResponseException}.
*/
public String handleResponse(final HttpResponse response)
throws HttpResponseException, IOException {
final StatusLine statusLine = response.getStatusLine();
final HttpEntity entity = response.getEntity();
if (statusLine.getStatusCode() >= 300) {
EntityUtils.consume(entity);
throw new HttpResponseException(statusLine.getStatusCode(),
statusLine.getReasonPhrase());
}
return entity == null ? null : EntityUtils.toString(entity);
}
}
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