/* Copyright (C) 2003-2011 JabRef contributors.
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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package net.sf.jabref.export;
import java.io.*;
import java.net.URL;
import net.sf.jabref.Globals;
import net.sf.jabref.plugin.core.generated._JabRefPlugin.ExportFormatTemplateExtension;
/**
* Class for export formats defined in plugins.
*
* Needed since resources might be loaded from a plugin-jar.
*
*/
public class PluginBasedExportFormat extends ExportFormat {
public ExportFormatTemplateExtension extension;
/**
* Load the plugin from the given extension. Might be null if extension
* could not be loaded.
*
* @param extension
* @return
*/
public static PluginBasedExportFormat getFormat(
ExportFormatTemplateExtension extension) {
String consoleName = extension.getConsoleName();
String displayName = extension.getDisplayName();
String layoutFilename = extension.getLayoutFilename();
String fileExtension = extension.getExtension();
String encoding = extension.getEncoding();
if ("".equals(fileExtension) || "".equals(displayName)
|| "".equals(consoleName) || "".equals(layoutFilename)) {
Globals.logger("Could not load extension " + extension.getId());
return null;
}
return new PluginBasedExportFormat(displayName, consoleName,
layoutFilename, fileExtension, encoding, extension);
}
public PluginBasedExportFormat(String displayName, String consoleName,
String layoutFileName, String fileExtension, String encoding,
ExportFormatTemplateExtension extension) {
super(displayName, consoleName, layoutFileName, null, fileExtension);
// Set the overriding encoding, if the plugin supplied one:
if (encoding != null)
setEncoding(encoding);
this.extension = extension;
}
@Override
public Reader getReader(String filename) throws IOException {
URL reso = extension.getDirAsUrl(filename);
if (reso != null) {
try {
return new InputStreamReader(reso.openStream());
} catch (FileNotFoundException ex) {
// If that didn't work, try below
}
}
try {
return new FileReader(new File(filename));
} catch (FileNotFoundException ex) {
// If that did not work, throw the IOException below
}
throw new IOException(Globals.lang("Could not find layout file")
+ ": '" + filename + "'.");
}
}