/*
* Copyright 2009-2011 Jon Stevens et al.
*
* 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.github.sardine.impl.handler;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.StatusLine;
import com.github.sardine.impl.SardineException;
/**
* {@link org.apache.http.client.ResponseHandler} which checks whether a given resource exists.
*
* @author mirko
*/
public class ExistsResponseHandler extends ValidatingResponseHandler<Boolean>
{
@Override
public Boolean handleResponse(HttpResponse response) throws SardineException
{
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if (statusCode < HttpStatus.SC_MULTIPLE_CHOICES)
{
return true;
}
if (statusCode == HttpStatus.SC_NOT_FOUND)
{
return false;
}
throw new SardineException("Unexpected response", statusCode, statusLine.getReasonPhrase());
}
}