nl.edia.sakai.tool.skinmanager.FileUploadAction.java Source code

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Here is the source code for nl.edia.sakai.tool.skinmanager.FileUploadAction.java

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/*
 * #%L
 * Edia Skin Manager Tool
 * %%
 * Copyright (C) 2007 - 2013 Edia
 * %%
 * Licensed under the Educational Community 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://opensource.org/licenses/ECL-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.
 * #L%
 */
package nl.edia.sakai.tool.skinmanager;

import java.io.IOException;
import java.io.InputStream;
import java.util.Date;

import org.apache.commons.fileupload.FileItem;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.webflow.action.AbstractAction;
import org.springframework.webflow.context.servlet.ServletExternalContext;
import org.springframework.webflow.core.collection.ParameterMap;
import org.springframework.webflow.execution.Event;
import org.springframework.webflow.execution.RequestContext;

import javax.servlet.http.HttpServletRequest;

public class FileUploadAction extends AbstractAction {
    private SkinService skinService;

    private String fileParameterName = "file";

    protected Event doExecute(RequestContext context) throws Exception {
        InputStream inputStream = getFileInputStream(context);

        ParameterMap requestParameters = context.getRequestParameters();
        if (inputStream != null) {
            // data was uploaded
            if (context.getAttributes().getBoolean("new")) {

                String mySkinId = requestParameters.getRequired("id");
                skinService.createSkin(mySkinId, inputStream, new Date());
            } else {

                String mySkinId = context.getFlowScope().getRequiredString("id");
                skinService.updateSkin(mySkinId, inputStream, new Date());
            }
        } else {
            throw new IllegalArgumentException("Required attribute '" + fileParameterName
                    + "' is not present in map; attributes present are [" + requestParameters + "]");
        }
        return success();
    }

    protected InputStream getFileInputStream(RequestContext context) throws IOException {
        InputStream inputStream = null;
        {
            ParameterMap requestParameters = context.getRequestParameters();
            MultipartFile file = requestParameters.getMultipartFile(fileParameterName);
            if (file != null) {
                inputStream = file.getInputStream();
            } else {
                Object attribute = ((HttpServletRequest) ((ServletExternalContext) context.getExternalContext())
                        .getNativeRequest()).getAttribute(fileParameterName);
                if (attribute instanceof FileItem) {
                    inputStream = ((FileItem) attribute).getInputStream();
                }
            }
        }
        return inputStream;
    }

    public SkinService getSkinService() {
        return skinService;
    }

    public void setSkinService(SkinService skinService) {
        this.skinService = skinService;
    }

    public String getFileParameterName() {
        return fileParameterName;
    }

    public void setFileParameterName(String fileParameterName) {
        this.fileParameterName = fileParameterName;
    }

}