Struts example source code file (MultipartFormDataHandler.java)

This example Struts source code file (MultipartFormDataHandler.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Struts tags/keywords

content_type, content_type, contenttypehandler, conversion, io, ioexception, ioexception, multipartformdatahandler, object, object, string, string, writer

The Struts MultipartFormDataHandler.java source code

/*
 * $Id$
 *
 * 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.
 */
package org.apache.struts2.rest.handler;

import java.io.Writer;
import java.io.IOException;
import java.io.Reader;

/**
 * Handles the default content type for requests that originate from a browser's HTML form 
 * with a file upload and multipart/from-data encoding
 *
 * content-type: multipart/form-data
 *
 * This handler is intended for requests only, not for responses
 *
 * {@link http://www.w3.org/TR/html401/interact/forms.html#h-17.13.4}
 *
 */
public class MultipartFormDataHandler implements ContentTypeHandler {

    public static final String CONTENT_TYPE = "multipart/form-data";

    public String fromObject(Object obj, String resultCode, Writer out) throws IOException {
        throw new IOException("Conversion from Object to '"+getContentType()+"' is not supported");
    }

    /** No transformation is required as the framework handles this data */
    public void toObject(Reader in, Object target) {
    }

    /**
     * The extension is not used by this handler
     * @return
     */
    public String getExtension() {
        return null;
    }

    public String getContentType() {
        return CONTENT_TYPE;
    }
}