com.holonplatform.jaxrs.client.internal.JaxrsRawResponseEntity Maven / Gradle / Ivy
/*
* Copyright 2000-2017 Holon TDCN.
*
* 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.holonplatform.jaxrs.client.internal;
import java.io.InputStream;
import java.util.Optional;
import javax.ws.rs.core.Response;
import com.holonplatform.core.internal.utils.ConversionUtils;
import com.holonplatform.http.exceptions.HttpEntityProcessingException;
import com.holonplatform.http.rest.ResponseEntity;
import com.holonplatform.http.rest.ResponseType;
/**
* JAX-RS raw {@link ResponseEntity} implementation, which returns a byte[]
as payload.
*
* @since 5.0.0
*/
public class JaxrsRawResponseEntity extends JaxrsResponseEntity {
/**
* Constructor
* @param response JAX-RS response (not null)
*/
public JaxrsRawResponseEntity(Response response) {
super(response, ResponseType.of(byte[].class));
}
/*
* (non-Javadoc)
* @see com.holonplatform.jaxrs.client.internal.JaxrsResponseEntity#getPayload()
*/
@SuppressWarnings("resource")
@Override
public Optional getPayload() throws UnsupportedOperationException {
try {
getResponse().bufferEntity();
InputStream is = getResponse().readEntity(InputStream.class);
if (is != null) {
return Optional.ofNullable(ConversionUtils.convertInputStreamToBytes(is));
}
} catch (Exception e) {
// check zero-lenght response content
if (isNoContentException(e)) {
return Optional.empty();
}
throw new HttpEntityProcessingException("Failed to read HTTP entity input stream", e);
}
return Optional.empty();
}
/*
* (non-Javadoc)
* @see com.holonplatform.jaxrs.client.internal.JaxrsResponseEntity#getPayloadType()
*/
@Override
public Class extends byte[]> getPayloadType() throws UnsupportedOperationException {
return byte[].class;
}
}