/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.xsl;
import com.caucho.vfs.Path;
import org.w3c.dom.Document;
import java.util.ArrayList;
/**
* A document wrapper allowing caching of XSL-generated content.
*/
public class CacheableDocument {
private ArrayList depends;
private Document document;
CacheableDocument(Document document, ArrayList depends)
{
this.document = document;
this.depends = depends;
}
/**
* Returns the document
*/
public Document getDocument()
{
return document;
}
/**
* True if the document is cacheable
*/
public boolean isCacheable()
{
return depends != null;
}
/**
* Returns the modification time of the document sources.
*/
public long getLastModified()
{
if (depends == null)
return 0;
long lastModified = 0;
for (int i = 0; i < depends.size(); i++) {
Path path = (Path) depends.get(i);
long time = path.getLastModified();
if (time > lastModified)
lastModified = time;
}
return lastModified;
}
public ArrayList getCacheDepends()
{
return depends;
}
void addDepend(Path path)
{
if (depends != null)
depends.add(path);
}
}