package org.apache.directmemory.server.services;
/*
* 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.
*/
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.directmemory.serialization.Serializer;
import org.apache.directmemory.serialization.SerializerFactory;
import org.apache.directmemory.serialization.SerializerNotFoundException;
import org.apache.directmemory.server.commons.DirectMemoryException;
import org.apache.directmemory.server.commons.DirectMemoryHttpConstants;
import org.apache.directmemory.server.commons.DirectMemoryRequest;
import org.apache.directmemory.server.commons.DirectMemoryResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.ws.rs.core.MediaType;
import java.io.IOException;
/**
* @author Olivier Lamy
*/
public class TextPlainContentTypeHandler
implements ContentTypeHandler
{
private Logger log = LoggerFactory.getLogger( getClass() );
@Override
public byte[] handleGet( DirectMemoryRequest request, byte[] cacheResponseContent, HttpServletResponse resp,
HttpServletRequest req )
throws DirectMemoryException, IOException
{
try
{
Serializer serializer = getSerializer( req );
String res = serializer.deserialize( cacheResponseContent, String.class );
resp.setContentType( MediaType.TEXT_PLAIN );
return res.getBytes();
}
catch ( SerializerNotFoundException e )
{
throw new DirectMemoryException( e.getMessage(), e );
}
catch ( ClassNotFoundException e )
{
throw new DirectMemoryException( e.getMessage(), e );
}
catch ( InstantiationException e )
{
throw new DirectMemoryException( e.getMessage(), e );
}
catch ( IllegalAccessException e )
{
throw new DirectMemoryException( e.getMessage(), e );
}
}
@Override
public DirectMemoryRequest handlePut( HttpServletRequest req, HttpServletResponse resp )
throws DirectMemoryException, IOException
{
DirectMemoryRequest request = new DirectMemoryRequest();
try
{
Serializer serializer = getSerializer( req );
request.setCacheContent( serializer.serialize( IOUtils.toString( req.getInputStream() ) ) );
}
catch ( SerializerNotFoundException e )
{
throw new DirectMemoryException( e.getMessage(), e );
}
String expiresInHeader = req.getHeader( DirectMemoryHttpConstants.EXPIRES_IN_HTTP_HEADER );
int expiresIn = StringUtils.isEmpty( expiresInHeader ) ? 0 : Integer.valueOf( expiresInHeader );
log.debug( "expiresIn: {} for header value: {}", expiresIn, expiresInHeader );
return request.setExpiresIn( expiresIn );
}
protected Serializer getSerializer( HttpServletRequest req )
throws SerializerNotFoundException
{
String serializerClassName = req.getHeader( DirectMemoryHttpConstants.SERIALIZER_HTTP_HEADER );
if ( StringUtils.isEmpty( serializerClassName ) )
{
return SerializerFactory.createNewSerializer();
}
return SerializerFactory.createNewSerializer( serializerClassName );
}
}