org.mmbase.util.xml.applicationdata
Class NodeWriter

java.lang.Object
  org.mmbase.util.xml.applicationdata.NodeWriter

public class NodeWriter
extends Object

Utility class for writing xml files for data- and relation sources, suppied by an application export class. Does not support or export dtd information.

Version:

$Id: NodeWriter.java 34900 2009-05-01 16:29:42Z michiel $

Author:

Daniel Ockeleon, Jaco de Groot, Pierre van Rooden

Constructor Summary

NodeWriter(MMBase mmb, Logger logger, String directory, String builderName, boolean isRelationNode)
Constructor, opens the initial xml file and writes a header.

Method Summary

void	done() Writes a footer to the xml file, and closes the file.
(package private) static boolean	saveFile(String filename, byte[] value) Stores binary data in a file
void	write(MMObjectNode node) Writes a node (object) to the datasource file.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NodeWriter

NodeWriter(MMBase mmb,
           Logger logger,
           String directory,
           String builderName,
           boolean isRelationNode)

Constructor, opens the initial xml file and writes a header. The file opened for writing is [directory]/[buildername].xml.

Parameters:

mmb - MMBase object for retrieving type information

logger - place to log results.

directory - the directory to write the files to (including the trailing slash).

buildername - name of the builder to export

isRelationNode - if true, the source to write is a relationsource. Otherwise, a datasource is written.

Method Detail

write

public void write(MMObjectNode node)

Writes a node (object) to the datasource file. Relationsources are stored in a slightly different format from data sources.

Parameters:

node - The object to store.

done

public void done()

Writes a footer to the xml file, and closes the file.

saveFile

static boolean saveFile(String filename,
                        byte[] value)

Stores binary data in a file

Parameters:

filename - path of the file to store the data

value - binary data to store (byte array)

Returns:

true if the write was succesful, false if an exception occurred