revisionlistbean.java

来自「web版的SVN客户端」· Java 代码 · 共 107 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;

import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.polarion.svnwebclient.SVNWebClientException;
import org.polarion.svnwebclient.configuration.ConfigurationProvider;
import org.polarion.svnwebclient.data.IDataProvider;
import org.polarion.svnwebclient.data.model.DataRepositoryElement;
import org.polarion.svnwebclient.util.UrlGenerator;
import org.polarion.svnwebclient.util.UrlGeneratorFactory;
import org.polarion.svnwebclient.util.UrlUtil;
import org.polarion.svnwebclient.web.model.Button;
import org.polarion.svnwebclient.web.model.Navigation;
import org.polarion.svnwebclient.web.model.data.RevisionList;
import org.polarion.svnwebclient.web.resource.Images;
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 RevisionListBean extends AbstractBean {
    protected long headRevision;
    protected long revision;
    protected String url;    
    protected List revisions;
    protected DataRepositoryElement info;
    
    public RevisionListBean() {
    }
    
    protected boolean executeSVNOperation(IDataProvider dataProvider) throws SVNWebClientException {
        this.headRevision = dataProvider.getHeadRevision();
        this.revision = this.headRevision;
        if (this.requestHandler.getCurrentRevision() != -1) {
            this.revision = this.requestHandler.getCurrentRevision();
        }
        this.url = this.requestHandler.getUrl();
        if (this.requestHandler.getPegRevision() != -1) {
            this.url = dataProvider.getLocation(this.requestHandler.getUrl(), this.requestHandler.getPegRevision(), this.revision);
        }
        this.info = dataProvider.getInfo(this.url, this.revision);
        long revisionCount = this.requestHandler.getRevisionCount();
        if (revisionCount == 0) {
            revisionCount = ConfigurationProvider.getInstance().getVersionsCount();
        }
        this.revisions = dataProvider.getRevisions(this.url, this.revision, 0, revisionCount);
        return true;
    }

    protected AbstractRequestHandler getRequestHandler(HttpServletRequest request) {
        return new RequestHandler(request);
    }    
    
    public RevisionList getRevisionList() {
        RevisionList revisionList = new RevisionList(this.revisions, this.requestHandler, this.headRevision,
        		this.url, this.info, ConfigurationProvider.getInstance().getRevisionDecorator());
        revisionList.setState(this.state);
        return revisionList;
    }
    
    public Navigation getNavigation() {
        return new Navigation(this.url, this.requestHandler.getLocation(),this.requestHandler.getCurrentRevision(), !this.info.isDirectory());
    }        
    
    public List getActions() {
        List ret = new ArrayList();
        UrlGenerator urlGenerator;
        if (this.info.isDirectory()) {
            urlGenerator = UrlGeneratorFactory.getUrlGenerator(Links.DIRECTORY_COMPARE, this.requestHandler.getLocation()); 
        } else {
            urlGenerator = UrlGeneratorFactory.getUrlGenerator(Links.FILE_COMPARE, this.requestHandler.getLocation());
        }
        urlGenerator.addParameter(RequestParameters.URL, UrlUtil.encode(this.url));
        if (this.requestHandler.getCurrentRevision() != -1) {
            urlGenerator.addParameter(RequestParameters.CREV, Long.toString(this.requestHandler.getCurrentRevision()));
        }                        
        
        ret.add(new Button("javascript:compareRevisions('" + urlGenerator.getUrl() + "')", Images.COMPARE, "Compare"));
        return ret;
    }
}