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/**
* Copyright (C) 2011-2015 The XDocReport Team
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package fr.opensagres.xdocreport.template.formatter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;
import java.util.Collection;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.XMLReaderFactory;
import fr.opensagres.xdocreport.core.utils.StringUtils;
import fr.opensagres.xdocreport.template.formatter.sax.FieldsMetadataContentHandler;
/**
* Fields metadata serializer used to load {@link FieldsMetadata} from XML and serialize {@link FieldsMetadata} to XML.
*/
public class FieldsMetadataXMLSerializer
{
private static final String LF = System.getProperty( "line.separator" );
private static final String TAB = "\t";
private static final FieldsMetadataXMLSerializer INSTANCE = new FieldsMetadataXMLSerializer();
public static FieldsMetadataXMLSerializer getInstance()
{
return INSTANCE;
}
protected FieldsMetadataXMLSerializer()
{
}
/**
* Load fields metadata in the given {@link FieldsMetadata} from the given XML reader. Here a sample of XML reader :
*
*
*
*
*
*
*
*
*
* @param inputStream the reader of the XML fields.
* @throws SAXException
* @throws IOException
*/
public FieldsMetadata load( Reader input )
throws SAXException, IOException
{
XMLReader saxReader = XMLReaderFactory.createXMLReader();
FieldsMetadataContentHandler myContentHandler = new FieldsMetadataContentHandler();
saxReader.setContentHandler( myContentHandler );
saxReader.parse( new InputSource( input ) );
return myContentHandler.getFieldsMetadata();
}
/**
* Load fields metadata in the given {@link FieldsMetadata} from the given XML reader. Here a sample of XML reader :
*
*
*
*
*
*
*
*
*
* @param inputStream the input stream of the XML fields.
* @throws SAXException
* @throws IOException
*/
public FieldsMetadata load( InputStream inputStream )
throws SAXException, IOException
{
XMLReader saxReader = XMLReaderFactory.createXMLReader();
FieldsMetadataContentHandler myContentHandler = new FieldsMetadataContentHandler();
saxReader.setContentHandler( myContentHandler );
saxReader.parse( new InputSource( inputStream ) );
return myContentHandler.getFieldsMetadata();
}
/**
* Serialize as XML the given {@link FieldsMetadata} to the given XML writer. Here a sample of XML writer :
*
*
*
*
*
*
*
*
*
* @param fieldsMetadata the metadata to serialize to XML.
* @param writer the writer.
* @throws IOException
*/
public void save( FieldsMetadata fieldsMetadata, Writer writer )
throws IOException
{
save( fieldsMetadata, writer, null, false, false );
}
/**
* Serialize as XML the given {@link FieldsMetadata} to the given XML writer. Here a sample of XML writer :
*
*
*
*
*
*
*
*
*
* @param fieldsMetadata the metadata to serialize to XML.
* @param writer the writer.
* @param indent true if indent must be managed and false otherwise.
* @throws IOException
*/
public void save( FieldsMetadata fieldsMetadata, Writer writer, boolean indent )
throws IOException
{
save( fieldsMetadata, writer, null, indent, false );
}
/**
* Serialize as XML the given {@link FieldsMetadata} to the given XML writer. Here a sample of XML writer :
*
*
*
*
*
*
*
*
*
* @param fieldsMetadata the metadata to serialize to XML.
* @param writer the writer.
* @param indent true if indent must be managed and false otherwise.
* @param formatAsJavaString true if format as Java String to be done and false otherwise.
* @throws IOException
*/
public void save( FieldsMetadata fieldsMetadata, Writer writer, boolean indent, boolean formatAsJavaString )
throws IOException
{
save( fieldsMetadata, writer, null, indent, formatAsJavaString );
}
/**
* Serialize as XML the given {@link FieldsMetadata} to the given XML output stream. Here a sample of XML writer :
*
*
*
*
*
*
*
*
*
* @param fieldsMetadata the metadata to serialize to XML.
* @param outputstream the output steam.
* @param indent true if indent must be managed and false otherwise.
* @param formatAsJavaString true if format as Java String to be done and false otherwise. * @throws IOException
*/
public void save( FieldsMetadata fieldsMetadata, OutputStream out, boolean indent, boolean formatAsJavaString )
throws IOException
{
save( fieldsMetadata, null, out, indent, formatAsJavaString );
}
/**
* Serialize as XML the given {@link FieldsMetadata} to the given XML output stream. Here a sample of XML writer :
*
*
*
*
*
*
*
*
*
* @param fieldsMetadata the metadata to serialize to XML.
* @param writer the writer (null if outputstream is not null).
* @param outputstream the output steam (null if writer is not null).
* @param indent true if indent must be managed and false otherwise.
* @param formatAsJavaString true if format as Java String to be done and false otherwise. * @throws IOException
*/
private void save( FieldsMetadata fieldsMetadata, Writer writer, OutputStream out, boolean indent,
boolean formatAsJavaString )
throws IOException
{
Collection fields = fieldsMetadata.getFields();
//
if ( formatAsJavaString )
{
write( "\"", writer, out );
write( XMLFieldsConstants.XML_DECLARATION_AS_JAVA_STRING, writer, out );
}
else
{
write( XMLFieldsConstants.XML_DECLARATION, writer, out );
}
if ( indent )
{
write( LF, writer, out );
}
//
write( XMLFieldsConstants.FIELDS_TAG_START_ELT, writer, out );
// ", writer, out );
if ( indent )
{
write( LF, writer, out );
write( TAB, writer, out );
}
//
write( XMLFieldsConstants.DESCRIPTION_START_ELT, writer, out );
write( XMLFieldsConstants.START_CDATA, writer, out );
if ( fieldsMetadata.getDescription() != null )
{
write( fieldsMetadata.getDescription(), writer, out );
}
write( XMLFieldsConstants.END_CDATA, writer, out );
//
write( XMLFieldsConstants.DESCRIPTION_END_ELT, writer, out );
// list of
for ( FieldMetadata field : fields )
{
save( field, writer, out, indent, formatAsJavaString );
}
if ( indent )
{
write( LF, writer, out );
}
//
write( XMLFieldsConstants.FIELDS_END_ELT, writer, out );
if ( formatAsJavaString )
{
write( "\"", writer, out );
}
}
private void save( FieldMetadata field, Writer writer, OutputStream out, boolean indent, boolean formatAsJavaString )
throws IOException
{
if ( indent )
{
write( LF, writer, out );
write( TAB, writer, out );
}
write( XMLFieldsConstants.FIELD_TAG_START_ELT, writer, out );
writeAttr( XMLFieldsConstants.NAME_ATTR, field.getFieldName(), formatAsJavaString, writer, out );
writeAttr( XMLFieldsConstants.LIST_ATTR, field.isListType(), formatAsJavaString, writer, out );
writeAttr( XMLFieldsConstants.IMAGE_NAME_ATTR, field.getImageName(), formatAsJavaString, writer, out );
writeAttr( XMLFieldsConstants.SYNTAX_KIND_ATTR, field.getSyntaxKind(), formatAsJavaString, writer, out );
write( ">", writer, out );
if ( indent )
{
write( LF, writer, out );
write( TAB, writer, out );
write( TAB, writer, out );
}
// Description
write( XMLFieldsConstants.DESCRIPTION_START_ELT, writer, out );
write( XMLFieldsConstants.START_CDATA, writer, out );
if ( field.getDescription() != null )
{
write( field.getDescription(), writer, out );
}
write( XMLFieldsConstants.END_CDATA, writer, out );
write( XMLFieldsConstants.DESCRIPTION_END_ELT, writer, out );
if ( indent )
{
write( LF, writer, out );
write( TAB, writer, out );
}
write( XMLFieldsConstants.FIELD_END_ELT, writer, out );
}
private void write( String s, Writer writer, OutputStream out )
throws IOException
{
if ( writer == null )
{
out.write( s.getBytes() );
}
else
{
writer.write( s );
}
}
private void writeAttr( String attrName, String attrValue, boolean formatAsJavaString, Writer writer,
OutputStream out )
throws IOException
{
write( " ", writer, out );
write( attrName, writer, out );
if ( formatAsJavaString )
{
write( "=\\\"", writer, out );
}
else
{
write( "=\"", writer, out );
}
write( attrValue != null ? attrValue : "", writer, out );
if ( formatAsJavaString )
{
write( "\\\"", writer, out );
}
else
{
write( "\"", writer, out );
}
}
private void writeAttr( String attrName, boolean attrValue, boolean formatAsJavaString, Writer writer,
OutputStream out )
throws IOException
{
writeAttr( attrName, attrValue ? StringUtils.TRUE : StringUtils.FALSE, formatAsJavaString, writer, out );
}
}
