/*
BEGIN LICENSE BLOCK
Copyright 2010-2011, Heiko Mueller, Sam Lindley, James Cheney and
University of Edinburgh
This file is part of Database Wiki.
Database Wiki 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 3 of the License, or
(at your option) any later version.
Database Wiki 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 Database Wiki. If not, see <http://www.gnu.org/licenses/>.
END LICENSE BLOCK
*/
package org.dbwiki.data.io;
import org.dbwiki.data.database.Database;
import org.dbwiki.data.database.DatabaseAttributeNode;
import org.dbwiki.data.database.DatabaseElementNode;
import org.dbwiki.data.database.DatabaseGroupNode;
import org.dbwiki.data.database.DatabaseTextNode;
import org.dbwiki.exception.WikiException;
import org.dbwiki.exception.WikiFatalException;
/** A NodeWriter that provides callbacks for exporting data as XML
* with extra annotations for the copy-paste protocol
* FIXME #xmlwriter Maybe could be derived from ExportNodeWriter and we could get rid of abstract superclass
* @author jcheney
*
*/
public class CopyPasteNodeWriter extends NodeWriter {
/*
* Public Methods
*/
public void writeInit() throws java.io.IOException {
this.writeln("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
}
public void startDatabase(Database database, int version) throws org.dbwiki.exception.WikiException {
try {
this.writeln("<" + CopyPasteConstants.ElementLabelDatabase
+ " " + CopyPasteConstants.AttributeLabelDatabaseName
+ "=\"" + database.name()
+ "\" " + CopyPasteConstants.AttributeLabelVersion
+ "=\"" + version + "\">");
} catch (java.io.IOException ioException) {
throw new WikiFatalException(ioException);
}
}
public void endDatabase(Database database) throws org.dbwiki.exception.WikiException {
try {
this.writeln("</" + CopyPasteConstants.ElementLabelDatabase + ">");
} catch (java.io.IOException ioException) {
throw new WikiFatalException(ioException);
}
}
public void startGroupNode(DatabaseGroupNode node) throws org.dbwiki.exception.WikiException {
try {
this.writeln(this.openGroupNode(node));
} catch (java.io.IOException ioException) {
throw new WikiFatalException(ioException);
}
}
public void endGroupNode(DatabaseGroupNode node, boolean isLast) throws org.dbwiki.exception.WikiException {
try {
this.writeln(this.closeNode());
} catch (java.io.IOException ioException) {
throw new WikiFatalException(ioException);
}
}
public void writeAttributeNode(DatabaseAttributeNode node, DatabaseTextNode value, boolean isLast) throws org.dbwiki.exception.WikiException {
try {
this.writeln(this.openAttributeNode(node));
this.writeTextNode(value);
this.writeln(this.closeNode());
} catch (java.io.IOException ioException) {
throw new WikiFatalException(ioException);
}
}
public void writeTextNode(DatabaseTextNode node) throws org.dbwiki.exception.WikiException {
try {
this.write(this.openTextNode(node));
this.write(org.dbwiki.lib.XML.maskText(node.getValue()));
this.writeln(this.closeNode());
} catch (java.io.IOException ioException) {
throw new WikiFatalException(ioException);
}
}
/*
* Private Methods
*/
private String closeNode() {
return "</" + CopyPasteConstants.ElementLabelNode + ">";
}
private String openAttributeNode(DatabaseAttributeNode node) {
return this.openElementNode(node, CopyPasteConstants.NodeTypeAttribute);
}
private String openElementNode(DatabaseElementNode node, int type) {
return "<" + CopyPasteConstants.ElementLabelNode
+ " " + CopyPasteConstants.AttributeLabelType
+ "=\"" + Integer.toString(type)
+ "\" " + CopyPasteConstants.AttributeLabelSchemaNodeName
+ "=\"" + node.label()
+ "\" " + CopyPasteConstants.AttributeLabelID
+ "=\"" + node.identifier().toURLString() + "\">";
}
private String openGroupNode(DatabaseGroupNode node) {
return this.openElementNode(node, CopyPasteConstants.NodeTypeGroup);
}
private String openTextNode(DatabaseTextNode node) {
return "<" + CopyPasteConstants.ElementLabelNode
+ " " + CopyPasteConstants.AttributeLabelType
+ "=\"" + Integer.toString(CopyPasteConstants.NodeTypeText)
+ "\" " + CopyPasteConstants.AttributeLabelID
+ "=\"" + node.identifier().toURLString() + "\">";
}
@Override
public void startEntry() throws WikiException {
;
}
@Override
public void endEntry() throws WikiException {
;
}
}