net.sf.jasperreports.repo.RepositoryUtil Maven / Gradle / Ivy
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2011 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see threadReportContext = new InheritableThreadLocal();
private AtomicReference> repositoryServices = new AtomicReference>();
private JasperReportsContext jasperReportsContext;
/**
*
*/
private RepositoryUtil(JasperReportsContext jasperReportsContext)//FIXMECONTEXT try to reuse utils as much as you can
{
this.jasperReportsContext = jasperReportsContext;
}
/**
*
*/
private static RepositoryUtil getDefaultInstance()
{
return new RepositoryUtil(DefaultJasperReportsContext.getInstance());
}
/**
*
*/
public static RepositoryUtil getInstance(JasperReportsContext jasperReportsContext)
{
return new RepositoryUtil(jasperReportsContext);
}
/**
*
*/
private List getServices()
{
List cachedServices = repositoryServices.get();
if (cachedServices != null)
{
return cachedServices;
}
List services = jasperReportsContext.getExtensions(RepositoryService.class);
// set if not already set
if (repositoryServices.compareAndSet(null, services))
{
return services;
}
// already set in the meantime by another thread
return repositoryServices.get();
}
/**
* @deprecated Replaced by {@link #getServices()}.
*/
public static List getRepositoryServices()
{
return getDefaultInstance().getServices();
}
/**
*
*
private static RepositoryContext getRepositoryContext()
{
return (RepositoryContext)localContextStack.top();
}
/**
* @deprecated To be removed.
*/
public static void setRepositoryContext(RepositoryContext context)
{
List services = getRepositoryServices();
if (services != null)
{
for (RepositoryService service : services)
{
service.setContext(context);
}
}
localContextStack.push(context);
}
/**
* @deprecated To be removed.
*/
public static void revertRepositoryContext()
{
//RepositoryContext repositoryContext = getRepositoryContext();
List services = getRepositoryServices();
if (services != null)
{
for (RepositoryService service : services)
{
service.revertContext();//FIXMEREPO context?
}
}
localContextStack.pop();
}
/**
* @deprecated To be removed.
*/
public static ReportContext getThreadReportContext()
{
return threadReportContext.get();
}
/**
* @deprecated To be removed.
*/
public static void setThreadReportContext(ReportContext reportContext)
{
threadReportContext.set(reportContext);
}
/**
* @deprecated To be removed.
*/
public static void resetThreadReportContext()
{
threadReportContext.set(null);
}
/**
*
*/
public JasperReport getReport(ReportContext reportContext, String location) throws JRException
{
JasperReport jasperReport = null;
JasperDesignCache cache = JasperDesignCache.getInstance(jasperReportsContext, reportContext);
if (cache != null)
{
jasperReport = cache.getJasperReport(location);
}
if (jasperReport == null)
{
ReportResource resource = getResourceFromLocation(location, ReportResource.class);
if (resource == null)
{
throw new JRException("Report not found at : " + location);
}
jasperReport = resource.getReport();
if (cache != null)
{
cache.set(location, jasperReport);
}
}
return jasperReport;
}
/**
* @deprecated Replaced by {@link #getReport(ReportContext, String)}.
*/
public static JasperReport getReport(String location) throws JRException
{
return getDefaultInstance().getReport(getThreadReportContext(), location);
}
/**
*
*/
public K getResourceFromLocation(String location, Class resourceType) throws JRException
{
K resource = null;
List services = getServices();
if (services != null)
{
for (RepositoryService service : services)
{
resource = service.getResource(location, resourceType);
if (resource != null)
{
break;
}
}
}
if (resource == null)
{
throw new JRException("Resource not found at : " + location);//FIXMEREPO decide whether to return null or throw exception; check everywhere
}
return resource;
}
/**
* @deprecated Replaced by {@link #getResourceFromLocation(String, Class)}.
*/
public static K getResource(String location, Class resourceType) throws JRException
{
return getDefaultInstance().getResourceFromLocation(location, resourceType);
}
/**
*
*/
public InputStream getInputStreamFromLocation(String location) throws JRException
{
InputStream is = findInputStream(location);
if (is == null)
{
throw new JRException("Input stream not found at : " + location);
}
return is;
}
/**
* @deprecated Replaced by {@link #getInputStreamFromLocation(String)}.
*/
public static InputStream getInputStream(String location) throws JRException
{
return getDefaultInstance().getInputStreamFromLocation(location);
}
/**
*
*/
private InputStream findInputStream(String location) throws JRException
{
InputStreamResource inputStreamResource = null;
List services = getServices();
if (services != null)
{
for (RepositoryService service : services)
{
inputStreamResource = service.getResource(location, InputStreamResource.class);
if (inputStreamResource != null)
{
break;
}
}
}
return inputStreamResource == null ? null : inputStreamResource.getInputStream();
}
/**
*
*/
public byte[] getBytesFromLocation(String location) throws JRException
{
InputStream is = findInputStream(location);
if (is == null)
{
throw new JRException("Byte data not found at : " + location);
}
ByteArrayOutputStream baos = null;
try
{
baos = new ByteArrayOutputStream();
byte[] bytes = new byte[10000];
int ln = 0;
while ((ln = is.read(bytes)) > 0)
{
baos.write(bytes, 0, ln);
}
baos.flush();
}
catch (IOException e)
{
throw new JRException("Error loading byte data from : " + location, e);
}
finally
{
if (baos != null)
{
try
{
baos.close();
}
catch(IOException e)
{
}
}
if (is != null)
{
try
{
is.close();
}
catch(IOException e)
{
}
}
}
return baos.toByteArray();
}
/**
* @deprecated Replaced by {@link #getBytesFromLocation(String)}.
*/
public static byte[] getBytes(String location) throws JRException
{
return getDefaultInstance().getBytesFromLocation(location);
}
}