directorycompare.java

来自「web版的SVN客户端」· Java 代码 · 共 138 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.model.data.directory;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;

import org.polarion.svnwebclient.data.model.DataDirectoryCompareItem;
import org.polarion.svnwebclient.util.HtmlUtil;
import org.polarion.svnwebclient.util.UrlGenerator;
import org.polarion.svnwebclient.util.UrlGeneratorFactory;
import org.polarion.svnwebclient.util.UrlUtil;
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.RequestParameters;

/**
 * 
 * @author <A HREF="mailto:[e-mail]">Polarion Software </A>
 */
public class DirectoryCompare {
    protected List items;
    protected AbstractRequestHandler requestHandler;
    protected String url;
    protected long startRevision;
    protected long endRevision;
    protected Comparator comparator;
    
    public class Element {
        protected DataDirectoryCompareItem data;
        
        public Element(DataDirectoryCompareItem data) {
            this.data = data;
        }
        
        public String getImage() {
            if (this.data.isDirectory()) {
                if (DataDirectoryCompareItem.OPERATION_ADD == this.data.getOperation()) {
                    return Images.DIRECTORY_ADDED;
                } else if (DataDirectoryCompareItem.OPERATION_DELETE == data.getOperation()) {
                    return Images.DIRECTORY_DELETED;
                } else {
                    return Images.DIRECTORY_MODIFIED;
                }
            } else {
                if (DataDirectoryCompareItem.OPERATION_ADD == this.data.getOperation()) {
                    return Images.FILE_ADDED;
                } else if (DataDirectoryCompareItem.OPERATION_DELETE == data.getOperation()) {
                    return Images.FILE_DELETED;
                } else {
                    return Images.FILE_MODIFIED;
                }                
            }
        }
        
        public String getName() {
            return HtmlUtil.encode(this.data.getPath());
        }
        
        public String getUrl() {
            if (this.data.isDirectory()) {
                return null;
            } else {
                UrlGenerator urlGenerator = UrlGeneratorFactory.getUrlGenerator(Links.FILE_COMPARE, 
                		DirectoryCompare.this.requestHandler.getLocation());
                String url = DirectoryCompare.this.url;
                if (url.length() != 0) {
                    url += "/";
                }
                url += this.data.getPath();                
                urlGenerator.addParameter(RequestParameters.URL, UrlUtil.encode(url));            
                if (DirectoryCompare.this.requestHandler.getCurrentRevision() != -1) {
                    urlGenerator.addParameter(RequestParameters.CREV, Long.toString(DirectoryCompare.this.requestHandler.getCurrentRevision()));
                }
                if (DataDirectoryCompareItem.OPERATION_ADD != this.data.getOperation()) {
                    urlGenerator.addParameter(RequestParameters.STARTREV, Long.toString(DirectoryCompare.this.startRevision));
                }
                if (DataDirectoryCompareItem.OPERATION_DELETE != this.data.getOperation()) {
                    urlGenerator.addParameter(RequestParameters.ENDREV, Long.toString(DirectoryCompare.this.endRevision));                    
                }
                
                if (DataDirectoryCompareItem.OPERATION_ADD == this.data.getOperation()) {
                    urlGenerator.addParameter(RequestParameters.PEGREV, Long.toString(DirectoryCompare.this.endRevision));
                }
                if (DataDirectoryCompareItem.OPERATION_DELETE == this.data.getOperation()) {
                    urlGenerator.addParameter(RequestParameters.PEGREV, Long.toString(DirectoryCompare.this.startRevision));                    
                }
                return urlGenerator.getUrl();
            }
        }
        
        public boolean isDirectory() {
            return this.data.isDirectory();
        }
    }
    
    public DirectoryCompare(List items, AbstractRequestHandler requestHandler, String url, long startRevision, long endRevision) {
        this.items = items;
        this.requestHandler = requestHandler;
        this.url = url;
        this.startRevision = startRevision;
        this.endRevision = endRevision;
    }
    
    public void applySort(Comparator comparator) {
        this.comparator = comparator;
    }    
    
    public List getElements() {
        List ret = new ArrayList();
        Collections.sort(this.items, this.comparator); 
        for (Iterator i = this.items.iterator(); i.hasNext(); ) {
            ret.add(new Element((DataDirectoryCompareItem) i.next()));
        }
        return ret;
    }
}