org.opencms.mail.CmsVfsDataSource Maven / Gradle / Ivy
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/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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.
*
* For further information about Alkacon Software, please see the
* company website: http://www.alkacon.com
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.opencms.mail;
import org.opencms.file.CmsFile;
import org.opencms.file.CmsObject;
import org.opencms.file.CmsResource;
import org.opencms.main.CmsException;
import org.opencms.main.OpenCms;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import javax.activation.DataSource;
/**
* DataSource wrapper for VFS resources, allows easy sending of VFS resources as email attachments.
*
* @since 6.2.0
*/
public class CmsVfsDataSource implements DataSource {
/** The content type to use for the data source. */
private String m_contentType;
/** The file that accessed by this data source. */
private CmsFile m_file;
/**
* Creates a new data source for the given VFS resource.
*
* @param cms the current users OpenCms context
* @param resource the resource to use
*
* @throws CmsException in case of errors accessing the resource in the VFS
*/
public CmsVfsDataSource(CmsObject cms, CmsResource resource)
throws CmsException {
m_file = cms.readFile(resource);
// identify the mime-type for the data source
m_contentType = OpenCms.getResourceManager().getMimeType(
m_file.getName(),
cms.getRequestContext().getEncoding());
}
/**
* @see javax.activation.DataSource#getContentType()
*/
public String getContentType() {
return m_contentType;
}
/**
* Returns an input stream baded on the file contents.
*
* @see javax.activation.DataSource#getInputStream()
*/
public InputStream getInputStream() {
return new ByteArrayInputStream(m_file.getContents());
}
/**
* Returns the root path of the given resource.
*
* @see javax.activation.DataSource#getName()
*/
public String getName() {
return m_file.getRootPath();
}
/**
* Don't use this method, VFS resources can't be written using this datasource class.
*
* This method will just return a new {@link ByteArrayOutputStream}.
*
* @see javax.activation.DataSource#getOutputStream()
*/
public OutputStream getOutputStream() {
// maybe throw an Exception here to avoid errors
return new ByteArrayOutputStream();
}
}