reportproviderimpl.java

OpenReports是一个完整的基于Web的报表方案

/*
 * Copyright (C) 2002 Erik Swenson - [e-mail]
 * 
 * This program 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.
 * 
 * This program 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. See the GNU General Public License for
 * more details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place - Suite 330, Boston, MA 02111-1307, USA.
 *  
 */

package org.efs.openreports.providers.impl;

import java.io.File;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;

import com.opensymphony.xwork.ActionContext;
import com.opensymphony.xwork.interceptor.component.ComponentManager;

import org.apache.log4j.Logger;

import org.efs.openreports.objects.Report;
import org.efs.openreports.providers.*;
import org.efs.openreports.providers.persistence.ReportPersistenceProvider;

public class ReportProviderImpl
	implements ReportProvider, DirectoryProviderAware
{
	protected static Logger log =
		Logger.getLogger(ReportProviderImpl.class.getName());

	private Hashtable dataSources = new Hashtable();

	private ReportPersistenceProvider reportPersistenceProvider;

	private DirectoryProvider directoryProvider;

	public ReportProviderImpl() throws ProviderException
	{
		ComponentManager container =
			(ComponentManager) ActionContext.getContext().get(
				"com.opensymphony.xwork.interceptor.component.ComponentManager");

		container.initializeObject(this);

		reportPersistenceProvider = new ReportPersistenceProvider();

		log.info("ReportProviderImpl created");
	}

	public List getReportFileNames()
	{
		File file = new File(directoryProvider.getReportDirectory());
		File[] files = file.listFiles();

		ArrayList fileNames = new ArrayList(files.length);
		for (int i = 0; i < files.length; i++)
		{
			if (files[i].getName().endsWith(".jasper"))
			{
				fileNames.add(files[i].getName());
			}
		}

		return fileNames;
	}

	public Report getReport(Integer id) throws ProviderException
	{
		return reportPersistenceProvider.getReport(id);
	}

	public List getReports() throws ProviderException
	{
		return reportPersistenceProvider.getReports();
	}

	public Report insertReport(Report report) throws ProviderException
	{
		return reportPersistenceProvider.insertReport(report);
	}

	public void updateReport(Report report) throws ProviderException
	{
		reportPersistenceProvider.updateReport(report);
	}

	public void deleteReport(Report report) throws ProviderException
	{
		reportPersistenceProvider.deleteReport(report);
	}

	public void setDirectoryProvider(DirectoryProvider directoryProvider)
	{
		this.directoryProvider = directoryProvider;
	}

}