fixed formatting and indentation.
This commit is contained in:
hns
parent
96cd8c406c
commit
47a3202ba8
1 changed files with 222 additions and 224 deletions
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@ -26,235 +26,233 @@ import helma.objectmodel.db.Property;
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public class XmlReader implements XmlConstants {
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public class XmlReader implements XmlConstants {
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private HashMap convertedNodes;
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private HashMap convertedNodes;
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private NodeManager nmgr = null;
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private NodeManager nmgr = null;
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public XmlReader () {
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public XmlReader () {
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}
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public XmlReader (NodeManager nmgr) {
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this.nmgr = nmgr;
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}
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/**
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* main entry to read an xml-file.
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*/
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public INode read (File file, INode helmaNode) throws RuntimeException {
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try {
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return read (new FileInputStream(file), helmaNode);
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} catch (FileNotFoundException notfound) {
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System.err.println ("couldn't find xml-file: " + file.getAbsolutePath ());
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return helmaNode;
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}
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}
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/**
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* read an InputStream with xml-content.
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*/
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public INode read (InputStream in, INode helmaNode) throws RuntimeException {
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return read (new InputSource (in), helmaNode);
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}
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/**
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* read an character reader with xml-content.
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*/
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public INode read (Reader in, INode helmaNode) throws RuntimeException {
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return read (new InputSource (in), helmaNode);
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}
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/**
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* read an InputSource with xml-content.
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*/
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public INode read (InputSource in, INode helmaNode) throws RuntimeException {
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if (helmaNode==null && nmgr==null)
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throw new RuntimeException ("can't create a new Node without a NodeManager");
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Document document = XmlUtil.parse (in);
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Element element = XmlUtil.getFirstElement(document);
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if (element==null)
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throw new RuntimeException ("corrupted xml-file");
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if (helmaNode==null) {
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return convert (element);
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} else {
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convertedNodes = new HashMap ();
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INode convertedNode = convert (element, helmaNode);
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convertedNodes = null;
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return convertedNode;
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}
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}
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/**
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* convert children of an Element to a given helmaNode
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*/
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public INode convert (Element element, INode helmaNode) {
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String idref = element.getAttribute("idref");
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String key = idref + "-" + element.getAttribute("prototyperef");
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if( idref!=null && !idref.equals("") ) {
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if( convertedNodes.containsKey(key) ) {
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return (INode)convertedNodes.get(key);
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}
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}
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key = element.getAttribute("id") + "-" + element.getAttribute("prototype");
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convertedNodes.put( key, helmaNode );
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String prototype = element.getAttribute("prototype");
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if( !prototype.equals("") && !prototype.equals("hopobject") ) {
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helmaNode.setPrototype( prototype );
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}
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children(helmaNode, element);
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return helmaNode;
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}
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// used by convert(Element,INode)
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private INode children( INode helmaNode, Element element ) {
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NodeList list = element.getChildNodes();
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int len = list.getLength();
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Element childElement;
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for ( int i=0; i<len; i++ ) {
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try {
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childElement = (Element)list.item(i);
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} catch( ClassCastException e ) {
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// ignore CDATA, comments etc
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continue;
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}
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INode workNode = null;
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if ( childElement.getTagName().equals("hop:child") ) {
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convert (childElement, helmaNode.createNode(null));
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} else if ( !"".equals(childElement.getAttribute("id")) ||
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!"".equals(childElement.getAttribute("idref")) ) {
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String childTagName = childElement.getTagName();
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INode newNode = convert (childElement, helmaNode.createNode (childTagName));
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helmaNode.setNode (childTagName, newNode);
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} else {
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String type = childElement.getAttribute("type");
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String key = childElement.getTagName();
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String content = XmlUtil.getTextContent(childElement);
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if ( type.equals("boolean") ) {
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if ( content.equals("true") ) {
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helmaNode.setBoolean(key,true);
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} else {
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helmaNode.setBoolean(key,false);
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}
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} else if ( type.equals("date") ) {
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SimpleDateFormat format = new SimpleDateFormat ( DATEFORMAT );
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try {
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Date date = format.parse(content);
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helmaNode.setDate(key, date);
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} catch ( ParseException e ) {
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helmaNode.setString(key,content);
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}
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} else if ( type.equals("float") ) {
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helmaNode.setFloat(key, (new Double(content)).doubleValue() );
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} else if ( type.equals("integer") ) {
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helmaNode.setInteger(key, (new Long(content)).longValue() );
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} else {
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helmaNode.setString(key,content);
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}
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}
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}
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return helmaNode;
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}
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/**
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* This is a basic de-serialization method for XML-2-Node conversion.
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* It reads a Node from a database-like file and should return a Node
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* that matches exactly the one dumped to that file before.
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* It only supports persistent-capable Nodes (from objectmodel.db-package).
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*/
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public helma.objectmodel.db.Node convert (Element element) {
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// FIXME: this method should use Element.getAttributeNS():
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// FIXME: do we need the name value or is it retrieved through mappings anyway?
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String name = element.getAttribute("name");
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// String name = null;
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String id = element.getAttribute("id");
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String prototype = element.getAttribute("prototype");
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if ( "".equals(prototype) )
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prototype = "hopobject";
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helma.objectmodel.db.Node helmaNode = null;
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try {
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long created = Long.parseLong (element.getAttribute ("created"));
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long lastmodified = Long.parseLong (element.getAttribute ("lastModified"));
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helmaNode = new helma.objectmodel.db.Node (name,id,prototype,nmgr.safe,created,lastmodified);
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} catch ( NumberFormatException e ) {
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helmaNode = new helma.objectmodel.db.Node (name,id,prototype,nmgr.safe);
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}
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}
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public XmlReader (NodeManager nmgr) {
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// now loop through all child elements and retrieve properties/subnodes for this node.
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this.nmgr = nmgr;
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NodeList list = element.getChildNodes();
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}
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int len = list.getLength();
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Hashtable propMap = new Hashtable();
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/**
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List subnodes = new ExternalizableVector();
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* main entry to read an xml-file.
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*/
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for ( int i=0; i<len; i++ ) {
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public INode read (File file, INode helmaNode) throws RuntimeException {
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Element childElement;
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try {
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try {
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return read (new FileInputStream(file), helmaNode);
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childElement = (Element)list.item(i);
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} catch (FileNotFoundException notfound) {
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} catch( ClassCastException e ) {
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System.err.println ("couldn't find xml-file: " + file.getAbsolutePath ());
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// ignore CDATA, comments etc
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return helmaNode;
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continue;
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}
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}
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}
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if ( childElement.getTagName().equals("hop:child") ) {
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/**
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// add a new NodeHandle, presume all IDs in this objectcache are unique,
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* read an InputStream with xml-content.
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// a prerequisite for a simple internal database.
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*/
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subnodes.add (new NodeHandle (new DbKey(null,childElement.getAttribute("idref") ) ) );
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public INode read (InputStream in, INode helmaNode) throws RuntimeException {
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continue;
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return read (new InputSource (in), helmaNode);
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}
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}
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if ( childElement.getTagName().equals("hop:parent") ) {
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/**
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// add a NodeHandle to parent object
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* read an character reader with xml-content.
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helmaNode.setParentHandle (new NodeHandle (new DbKey(null,childElement.getAttribute("idref") ) ) );
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*/
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continue;
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public INode read (Reader in, INode helmaNode) throws RuntimeException {
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}
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return read (new InputSource (in), helmaNode);
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}
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// if we come until here, childelement is a property value
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Property prop = new Property (childElement.getTagName(), helmaNode);
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/**
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if ( !"".equals(childElement.getAttribute("id")) ||
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* read an InputSource with xml-content.
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!"".equals(childElement.getAttribute("idref")) ) {
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*/
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// we've got an object!
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public INode read (InputSource in, INode helmaNode) throws RuntimeException {
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String idref = childElement.getAttribute("idref");
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if (helmaNode==null && nmgr==null)
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prop.setNodeHandle (new NodeHandle(new DbKey(null,idref)));
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throw new RuntimeException ("can't create a new Node without a NodeManager");
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} else {
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Document document = XmlUtil.parse (in);
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String type = childElement.getAttribute("type");
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Element element = XmlUtil.getFirstElement(document);
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String content = XmlUtil.getTextContent(childElement);
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if (element==null)
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if ( type.equals("boolean") ) {
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throw new RuntimeException ("corrupted xml-file");
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if ( content.equals("true") ) {
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prop.setBooleanValue(true);
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if (helmaNode==null) {
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} else {
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return convert (element);
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prop.setBooleanValue(false);
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} else {
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}
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convertedNodes = new HashMap ();
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} else if ( type.equals("date") ) {
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INode convertedNode = convert (element, helmaNode);
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SimpleDateFormat format = new SimpleDateFormat ( DATEFORMAT );
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convertedNodes = null;
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try {
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return convertedNode;
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Date date = format.parse(content);
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}
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prop.setDateValue (date);
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}
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} catch ( ParseException e ) {
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prop.setStringValue (content);
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/**
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}
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* convert children of an Element to a given helmaNode
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} else if ( type.equals("float") ) {
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*/
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prop.setFloatValue ((new Double(content)).doubleValue());
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public INode convert (Element element, INode helmaNode) {
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} else if ( type.equals("integer") ) {
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String idref = element.getAttribute("idref");
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prop.setIntegerValue ((new Long(content)).longValue());
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String key = idref + "-" + element.getAttribute("prototyperef");
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} else {
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if( idref!=null && !idref.equals("") ) {
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prop.setStringValue (content);
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if( convertedNodes.containsKey(key) ) {
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}
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return (INode)convertedNodes.get(key);
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}
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}
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propMap.put (childElement.getTagName().toLowerCase(), prop);
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}
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key = element.getAttribute("id") + "-" + element.getAttribute("prototype");
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convertedNodes.put( key, helmaNode );
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String prototype = element.getAttribute("prototype");
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if( !prototype.equals("") && !prototype.equals("hopobject") ) {
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helmaNode.setPrototype( prototype );
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}
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children(helmaNode, element);
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return helmaNode;
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}
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// used by convert(Element,INode)
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private INode children( INode helmaNode, Element element ) {
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NodeList list = element.getChildNodes();
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int len = list.getLength();
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Element childElement;
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for ( int i=0; i<len; i++ ) {
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try {
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childElement = (Element)list.item(i);
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} catch( ClassCastException e ) {
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continue; // ignore CDATA, comments etc
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}
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INode workNode = null;
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if ( childElement.getTagName().equals("hop:child") ) {
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convert (childElement, helmaNode.createNode(null));
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} else if ( !"".equals(childElement.getAttribute("id")) || !"".equals(childElement.getAttribute("idref")) ) {
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String childTagName = childElement.getTagName();
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INode newNode = convert (childElement, helmaNode.createNode (childTagName));
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helmaNode.setNode (childTagName, newNode);
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} else {
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String type = childElement.getAttribute("type");
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String key = childElement.getTagName();
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String content = XmlUtil.getTextContent(childElement);
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if ( type.equals("boolean") ) {
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if ( content.equals("true") ) {
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helmaNode.setBoolean(key,true);
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} else {
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helmaNode.setBoolean(key,false);
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}
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} else if ( type.equals("date") ) {
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SimpleDateFormat format = new SimpleDateFormat ( DATEFORMAT );
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try {
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Date date = format.parse(content);
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helmaNode.setDate(key, date);
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} catch ( ParseException e ) {
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helmaNode.setString(key,content);
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}
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} else if ( type.equals("float") ) {
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helmaNode.setFloat(key, (new Double(content)).doubleValue() );
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} else if ( type.equals("integer") ) {
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helmaNode.setInteger(key, (new Long(content)).longValue() );
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} else {
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helmaNode.setString(key,content);
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}
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}
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}
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return helmaNode;
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}
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/**
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* This is a basic de-serialization method for XML-2-Node conversion.
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* It reads a Node from a database-like file and should return a Node
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|
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* that matches exactly the one dumped to that file before.
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|
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* It only supports persistent-capable Nodes (from objectmodel.db-package).
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*/
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public helma.objectmodel.db.Node convert (Element element) {
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// FIXME: this method should use Element.getAttributeNS():
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// FIXME: do we need the name value or is it retrieved through mappings anyway?
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String name = element.getAttribute("name");
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// String name = null;
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String id = element.getAttribute("id");
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String prototype = element.getAttribute("prototype");
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if ( "".equals(prototype) )
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prototype = "hopobject";
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helma.objectmodel.db.Node helmaNode = null;
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try {
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long created = Long.parseLong (element.getAttribute ("created"));
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long lastmodified = Long.parseLong (element.getAttribute ("lastModified"));
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helmaNode = new helma.objectmodel.db.Node (name,id,prototype,nmgr.safe,created,lastmodified);
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} catch ( NumberFormatException e ) {
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helmaNode = new helma.objectmodel.db.Node (name,id,prototype,nmgr.safe);
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}
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// now loop through all child elements and retrieve properties/subnodes for this node.
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NodeList list = element.getChildNodes();
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int len = list.getLength();
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Hashtable propMap = new Hashtable();
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List subnodes = new ExternalizableVector();
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for ( int i=0; i<len; i++ ) {
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Element childElement;
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try {
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childElement = (Element)list.item(i);
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} catch( ClassCastException e ) {
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continue; // ignore CDATA, comments etc
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}
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if ( childElement.getTagName().equals("hop:child") ) {
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// add a new NodeHandle, presume all IDs in this objectcache are unique,
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// a prerequisite for a simple internal database.
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subnodes.add (new NodeHandle (new DbKey(null,childElement.getAttribute("idref") ) ) );
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continue;
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}
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if ( childElement.getTagName().equals("hop:parent") ) {
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// add a NodeHandle to parent object
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helmaNode.setParentHandle (new NodeHandle (new DbKey(null,childElement.getAttribute("idref") ) ) );
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continue;
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}
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// if we come until here, childelement is a property value
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Property prop = new Property (childElement.getTagName(), helmaNode);
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if ( !"".equals(childElement.getAttribute("id")) || !"".equals(childElement.getAttribute("idref")) ) {
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// we've got an object!
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String idref = childElement.getAttribute("idref");
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prop.setNodeHandle (new NodeHandle(new DbKey(null,idref)));
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} else {
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String type = childElement.getAttribute("type");
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String content = XmlUtil.getTextContent(childElement);
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if ( type.equals("boolean") ) {
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if ( content.equals("true") ) {
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prop.setBooleanValue(true);
|
|
||||||
} else {
|
|
||||||
prop.setBooleanValue(false);
|
|
||||||
}
|
|
||||||
} else if ( type.equals("date") ) {
|
|
||||||
SimpleDateFormat format = new SimpleDateFormat ( DATEFORMAT );
|
|
||||||
try {
|
|
||||||
Date date = format.parse(content);
|
|
||||||
prop.setDateValue (date);
|
|
||||||
} catch ( ParseException e ) {
|
|
||||||
prop.setStringValue (content);
|
|
||||||
}
|
|
||||||
} else if ( type.equals("float") ) {
|
|
||||||
prop.setFloatValue ((new Double(content)).doubleValue());
|
|
||||||
} else if ( type.equals("integer") ) {
|
|
||||||
prop.setIntegerValue ((new Long(content)).longValue());
|
|
||||||
} else {
|
|
||||||
prop.setStringValue (content);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
propMap.put (childElement.getTagName().toLowerCase(), prop);
|
|
||||||
}
|
|
||||||
if ( propMap.size()>0 )
|
|
||||||
helmaNode.setPropMap (propMap);
|
|
||||||
else
|
|
||||||
helmaNode.setPropMap (null);
|
|
||||||
if ( subnodes.size()>0 )
|
|
||||||
helmaNode.setSubnodes (subnodes);
|
|
||||||
else
|
|
||||||
helmaNode.setSubnodes (null);
|
|
||||||
return helmaNode;
|
|
||||||
}
|
}
|
||||||
|
if ( propMap.size()>0 )
|
||||||
|
helmaNode.setPropMap (propMap);
|
||||||
|
else
|
||||||
|
helmaNode.setPropMap (null);
|
||||||
|
if ( subnodes.size()>0 )
|
||||||
|
helmaNode.setSubnodes (subnodes);
|
||||||
|
else
|
||||||
|
helmaNode.setSubnodes (null);
|
||||||
|
return helmaNode;
|
||||||
|
}
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
||||||
Loading…
Add table
Reference in a new issue