filedatabean.java

来自「web版的SVN客户端」· Java 代码 · 共 88 行

/*
 * Copyright (c) 2004, 2005 Polarion Software, All rights reserved.
 * Email: [e-mail]
 *
 * This program and the accompanying materials are made available under the
 * terms of the Apache License, Version 2.0 (the "License"). You may not use
 * this file except in compliance with the License. Copy of the License is
 * located in the file LICENSE.txt in the project distribution. You may also
 * obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
 *
 *
 * POLARION SOFTWARE MAKES NO REPRESENTATIONS OR WARRANTIES
 * ABOUT THE SUITABILITY OF THE SOFTWARE, EITHER EXPRESSED OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. POLARION SOFTWARE
 * SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT
 * OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
 */
package org.polarion.svnwebclient.web.controller.file;

import java.io.IOException;
import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.polarion.svnwebclient.SVNWebClientException;
import org.polarion.svnwebclient.data.IDataProvider;
import org.polarion.svnwebclient.data.model.DataFile;
import org.polarion.svnwebclient.util.UrlGenerator;
import org.polarion.svnwebclient.util.UrlGeneratorFactory;
import org.polarion.svnwebclient.util.UrlUtil;
import org.polarion.svnwebclient.web.controller.AbstractBean;
import org.polarion.svnwebclient.web.model.Navigation;
import org.polarion.svnwebclient.web.model.data.file.FileData;
import org.polarion.svnwebclient.web.resource.Links;
import org.polarion.svnwebclient.web.support.AbstractRequestHandler;
import org.polarion.svnwebclient.web.support.RequestHandler;
import org.polarion.svnwebclient.web.support.RequestParameters;

/**
 * 
 * @author <A HREF="mailto:[e-mail]">Polarion Software </A>
 */
public class FileDataBean extends AbstractBean {
    protected DataFile file;
    
    public FileDataBean() {
    }
    
    protected boolean executeSVNOperation(IDataProvider dataProvider) throws SVNWebClientException {
        this.file = dataProvider.getFileData(this.requestHandler.getUrl(), this.requestHandler.getCurrentRevision());
        if (this.file.isBinary()) {
            this.redirectToDownload();
            return false;
        } else {
            return true;            
        }
    }

    protected AbstractRequestHandler getRequestHandler(HttpServletRequest request) {
        return new RequestHandler(request);
    }

    protected void redirectToDownload() throws SVNWebClientException {
        UrlGenerator urlGenerator = UrlGeneratorFactory.getUrlGenerator(Links.FILE_DOWNLOAD, 
        		this.requestHandler.getLocation());
        urlGenerator.addParameter(RequestParameters.URL, UrlUtil.encode(this.requestHandler.getUrl()));
        urlGenerator.addParameter(RequestParameters.CREV, Long.toString(this.requestHandler.getCurrentRevision()));
        try {
            this.state.getResponse().sendRedirect(urlGenerator.getUrl());
        } catch (IOException e) {
            throw new SVNWebClientException(e);
        }
    }
    
    public FileData getFileData() {
        return new FileData(this.file); 
    }
    
    public Navigation getNavigation() {
        return null;
    }

    public List getActions() {
        return null;
    }
}