/*
* [The "BSD licence"]
* Copyright (c) 2013-2014 Dandelion
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Dandelion nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.github.dandelion.datatables.core.export;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
import com.github.dandelion.core.utils.StringUtils;
import com.github.dandelion.datatables.core.configuration.TableConfig;
import com.github.dandelion.datatables.core.exception.ExportException;
import com.github.dandelion.datatables.core.html.HtmlColumn;
import com.github.dandelion.datatables.core.html.HtmlRow;
import com.github.dandelion.datatables.core.html.HtmlTable;
/**
* Default class used to export in the XML format.
*
* @author Thibault Duchateau
*/
public class XmlExport implements DatatablesExport {
private HtmlTable table;
private ExportConf exportConf;
@Override
public void initExport(HtmlTable table) {
this.table = table;
this.exportConf = table.getTableConfiguration().getExportConfiguration().get(ReservedFormat.XML);
}
@Override
public void processExport(OutputStream output) {
// Build headers list for attributes name
List<String> headers = new ArrayList<String>();
for(HtmlRow row : table.getHeadRows()){
for(HtmlColumn column : row.getColumns(ReservedFormat.ALL, ReservedFormat.XML)){
headers.add(StringUtils.uncapitalize(column.getContent().toString()));
}
}
XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();
XMLStreamWriter writer = null;
String objectType = TableConfig.INTERNAL_OBJECTTYPE.valueFrom(table.getTableConfiguration()).toLowerCase();
try {
writer = outputFactory.createXMLStreamWriter(output);
writer.writeStartDocument("1.0");
writer.writeStartElement(objectType + "s");
for (HtmlRow row : table.getBodyRows()) {
writer.writeStartElement(objectType);
int i = 0;
for (HtmlColumn column : row.getColumns(ReservedFormat.ALL, ReservedFormat.XML)) {
writer.writeAttribute(headers.get(i), column.getContent().toString());
i++;
}
writer.writeEndElement();
}
writer.writeEndElement();
writer.writeEndDocument();
writer.flush();
} catch (XMLStreamException e) {
StringBuilder sb = new StringBuilder("Something went wrong during the XML generation of the table '");
sb.append(table.getOriginalId());
sb.append("' and with the following export configuration: ");
sb.append(exportConf.toString());
throw new ExportException(sb.toString(), e);
}
finally {
try {
writer.close();
} catch (XMLStreamException e) {
StringBuilder sb = new StringBuilder("Something went wrong during the XML generation of the table '");
sb.append(table.getOriginalId());
sb.append("' and with the following export configuration: ");
sb.append(exportConf.toString());
throw new ExportException(sb.toString(), e);
}
}
}
}