fixed formatting and indentation.
This commit is contained in:
hns
parent
47ab428371
commit
443dd18158
1 changed files with 212 additions and 208 deletions
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@ -12,229 +12,233 @@ import helma.util.SystemProperties;
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public class XmlConverter implements XmlConstants {
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private boolean DEBUG=false;
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private boolean DEBUG=false;
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private Properties props;
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private Properties props;
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private char defaultSeparator = '_';
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private char defaultSeparator = '_';
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private int offset = 0;
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private int offset = 0;
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public XmlConverter() {
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props = new SystemProperties();
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public XmlConverter() {
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props = new SystemProperties();
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}
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public XmlConverter(String propFile) {
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props = new SystemProperties(propFile);
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extractProperties(props);
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}
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public XmlConverter(File propFile) {
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this ( propFile.getAbsolutePath() );
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}
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public XmlConverter(Properties props) {
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this.props = props;
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extractProperties(props);
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}
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public INode convert( String desc ) {
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return convert(desc, new TransientNode() );
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}
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public INode convert( String desc, INode helmaNode ) throws RuntimeException {
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try {
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return convert( new URL(desc), helmaNode );
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} catch ( MalformedURLException notanurl ) {
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try {
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return convert( new File(desc), helmaNode );
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} catch ( FileNotFoundException notfound ) {
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throw new RuntimeException( "couldn't read xml: " + desc );
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}
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} catch ( IOException ioerror ) {
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throw new RuntimeException( "couldn't read xml: " + desc );
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}
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}
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public INode convert( File file, INode helmaNode ) throws RuntimeException, FileNotFoundException {
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return convert( new FileInputStream(file), helmaNode );
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}
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public INode convert( URL url, INode helmaNode ) throws RuntimeException, IOException, MalformedURLException {
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return convert( url.openConnection().getInputStream(), helmaNode );
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}
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public INode convert( InputStream in, INode helmaNode ) throws RuntimeException {
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Document document = XmlUtil.parse (in);
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if ( document!=null && document.getDocumentElement()!=null ) {
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return convert( document.getDocumentElement(), helmaNode );
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} else {
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return helmaNode;
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}
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}
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public INode convert( Element element, INode helmaNode ) {
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offset++;
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if (DEBUG)
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debug("reading " + element.getNodeName() );
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helmaNode.setName( element.getNodeName() );
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String prototype = (String)props.get(element.getNodeName().toLowerCase()+"._prototype");
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if ( prototype == null )
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prototype = "HopObject";
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helmaNode.setPrototype( prototype );
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attributes(element, helmaNode);
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if ( element.hasChildNodes() ) {
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children(element, helmaNode);
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}
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offset--;
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return helmaNode;
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}
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/**
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* parse xml children and create hopobject-children
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*/
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private INode children( Element element, helma.objectmodel.INode helmaNode ) {
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NodeList list = element.getChildNodes();
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int len = list.getLength();
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StringBuffer textcontent = new StringBuffer();
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String domKey, helmaKey;
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for ( int i=0; i<len; i++ ) {
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// loop through the list of children
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org.w3c.dom.Node childNode = list.item(i);
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// if it's text content of this element -> append to StringBuffer
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if ( childNode.getNodeType()==org.w3c.dom.Node.TEXT_NODE ) {
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textcontent.append( childNode.getNodeValue().trim() );
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continue;
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}
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// FIXME: handle CDATA!
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// it's some kind of element (property or child)
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if ( childNode.getNodeType()==org.w3c.dom.Node.ELEMENT_NODE ) {
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Element childElement = (Element)childNode;
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// get the basic key we have to look for in the properties-table
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domKey = (element.getNodeName()+"."+childElement.getNodeName()).toLowerCase();
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// is there a childtext-2-property mapping?
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if ( props!=null && props.containsKey(domKey+"._text") ) {
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helmaKey = (String)props.get(domKey+"._text");
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if( helmaKey.equals("") )
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// if property is set but without value, read elementname for this mapping
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helmaKey = childElement.getNodeName().replace(':',defaultSeparator);
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if (DEBUG)
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debug("childtext-2-property mapping, helmaKey " + helmaKey + " for domKey " + domKey );
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if ( helmaNode.getString(helmaKey,false)==null ) {
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helmaNode.setString( helmaKey, XmlUtil.getTextContent(childNode) );
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if (DEBUG)
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debug("childtext-2-property mapping, setting " + helmaKey + " as string" );
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}
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continue;
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}
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// is there a simple child-2-property mapping?
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// (lets the user define to use only one element and make this a property
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// and simply ignore other elements of the same name)
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if ( props!=null && props.containsKey(domKey+"._property") ) {
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helmaKey = (String)props.get(domKey+"._property");
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// if property is set but without value, read elementname for this mapping:
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if ( helmaKey.equals("") )
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helmaKey = childElement.getNodeName().replace(':',defaultSeparator);
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if (DEBUG)
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debug("child-2-property mapping, helmaKey " + helmaKey + " for domKey " + domKey);
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if ( helmaNode.getNode(helmaKey,false)==null ) {
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convert( childElement, helmaNode.createNode(helmaKey) );
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if (DEBUG)
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debug( "read " + childElement.toString() + helmaNode.getNode(helmaKey,false).toString() );
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}
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continue;
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}
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// map it to one of the children-lists
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helma.objectmodel.INode newHelmaNode = null;
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String childrenMapping = (String)props.get(element.getNodeName().toLowerCase()+"._children");
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// do we need a mapping directly among _children of helmaNode?
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// can either be through property elname._children=_all or elname._children=childname
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if( childrenMapping!=null && ( childrenMapping.equals("_all") || childrenMapping.equals(childElement.getNodeName()) ) ) {
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newHelmaNode = convert(childElement, helmaNode.createNode(null) );
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}
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// which name to choose for a virtual subnode:
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helmaKey = (String)props.get(domKey);
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if ( helmaKey==null ) {
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helmaKey = childElement.getNodeName().replace(':',defaultSeparator);
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}
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// try to get the virtual node
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helma.objectmodel.INode worknode = helmaNode.getNode( helmaKey, false );
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if ( worknode==null ) {
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// if virtual node doesn't exist, create it
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worknode = helmaNode.createNode( helmaKey );
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}
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if (DEBUG)
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debug( "mounting child "+ childElement.getNodeName() + " at worknode " + worknode.toString() );
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// now mount it, possibly re-using the helmaNode that's been created before
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if ( newHelmaNode!=null ) {
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worknode.addNode(newHelmaNode);
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} else {
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convert( childElement, worknode.createNode( null ) );
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}
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}
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// forget about other types (comments etc)
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continue;
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}
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public XmlConverter(String propFile) {
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props = new SystemProperties(propFile);
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extractProperties(props);
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// if there's some text content for this element, map it:
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if ( textcontent.length()>0 ) {
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helmaKey = (String)props.get(element.getNodeName().toLowerCase()+"._text");
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if ( helmaKey==null )
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helmaKey = "text";
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helmaNode.setString(helmaKey, textcontent.toString().trim() );
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}
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public XmlConverter(File propFile) {
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this ( propFile.getAbsolutePath() );
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return helmaNode;
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}
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/**
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* set element's attributes as properties of helmaNode
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*/
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private INode attributes( Element element, INode helmaNode ) {
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NamedNodeMap nnm = element.getAttributes();
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int len = nnm.getLength();
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for ( int i=0; i<len; i++ ) {
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org.w3c.dom.Node attr = nnm.item(i);
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if ( attr.getNodeName().equals("_prototype") ) {
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helmaNode.setPrototype( attr.getNodeValue() );
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} else if ( attr.getNodeName().equals("_name") ) {
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helmaNode.setName( attr.getNodeValue() );
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} else {
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String helmaKey = (String)props.get(element.getNodeName().toLowerCase()+"._attribute."+attr.getNodeName().toLowerCase());
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if ( helmaKey==null )
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helmaKey = attr.getNodeName().replace(':',defaultSeparator);
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helmaNode.setString( helmaKey, attr.getNodeValue() );
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}
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}
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return helmaNode;
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}
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public XmlConverter(Properties props) {
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this.props = props;
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extractProperties(props);
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/**
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* utility function
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*/
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private void extractProperties( Properties props ) {
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if ( props.containsKey("separator") ) {
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defaultSeparator = ((String)props.get("separator")).charAt(0);
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}
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}
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public INode convert( String desc ) {
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return convert(desc, new TransientNode() );
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/** for testing */
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void debug(Object msg) {
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for ( int i=0; i<offset; i++ ) {
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System.out.print(" ");
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}
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public INode convert( String desc, INode helmaNode ) throws RuntimeException {
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try {
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return convert( new URL(desc), helmaNode );
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} catch ( MalformedURLException notanurl ) {
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try {
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return convert( new File(desc), helmaNode );
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} catch ( FileNotFoundException notfound ) {
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throw new RuntimeException( "couldn't read xml: " + desc );
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}
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} catch ( IOException ioerror ) {
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throw new RuntimeException( "couldn't read xml: " + desc );
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}
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}
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public INode convert( File file, INode helmaNode ) throws RuntimeException, FileNotFoundException {
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return convert( new FileInputStream(file), helmaNode );
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}
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public INode convert( URL url, INode helmaNode ) throws RuntimeException, IOException, MalformedURLException {
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return convert( url.openConnection().getInputStream(), helmaNode );
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}
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public INode convert( InputStream in, INode helmaNode ) throws RuntimeException {
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Document document = XmlUtil.parse (in);
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if ( document!=null && document.getDocumentElement()!=null ) {
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return convert( document.getDocumentElement(), helmaNode );
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} else {
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return helmaNode;
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}
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}
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public INode convert( Element element, INode helmaNode ) {
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offset++;
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if (DEBUG) debug("reading " + element.getNodeName() );
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helmaNode.setName( element.getNodeName() );
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String prototype = (String)props.get(element.getNodeName().toLowerCase()+"._prototype");
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if ( prototype == null )
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prototype = "HopObject";
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helmaNode.setPrototype( prototype );
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attributes(element, helmaNode);
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if ( element.hasChildNodes() ) {
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children(element, helmaNode);
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}
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offset--;
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return helmaNode;
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}
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/**
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* parse xml children and create hopobject-children
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*/
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private INode children( Element element, helma.objectmodel.INode helmaNode ) {
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NodeList list = element.getChildNodes();
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int len = list.getLength();
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StringBuffer textcontent = new StringBuffer();
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String domKey, helmaKey;
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for ( int i=0; i<len; i++ ) {
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// loop through the list of children
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org.w3c.dom.Node childNode = list.item(i);
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// if it's text content of this element -> append to StringBuffer
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if ( childNode.getNodeType()==org.w3c.dom.Node.TEXT_NODE ) {
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textcontent.append( childNode.getNodeValue().trim() );
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continue;
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}
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// FIXME: handle CDATA!
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// it's some kind of element (property or child)
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if ( childNode.getNodeType()==org.w3c.dom.Node.ELEMENT_NODE ) {
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Element childElement = (Element)childNode;
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// get the basic key we have to look for in the properties-table
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domKey = (element.getNodeName()+"."+childElement.getNodeName()).toLowerCase();
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// is there a childtext-2-property mapping?
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if ( props!=null && props.containsKey(domKey+"._text") ) {
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helmaKey = (String)props.get(domKey+"._text");
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if( helmaKey.equals("") )
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// if property is set but without value, read elementname for this mapping
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helmaKey = childElement.getNodeName().replace(':',defaultSeparator);
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if (DEBUG) debug("childtext-2-property mapping, helmaKey " + helmaKey + " for domKey " + domKey );
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if ( helmaNode.getString(helmaKey,false)==null ) {
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helmaNode.setString( helmaKey, XmlUtil.getTextContent(childNode) );
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if (DEBUG) debug("childtext-2-property mapping, setting " + helmaKey + " as string" );
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}
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continue;
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}
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//
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// is there a simple child-2-property mapping?
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// (lets the user define to use only one element and make this a property
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// and simply ignore other elements of the same name)
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if ( props!=null && props.containsKey(domKey+"._property") ) {
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helmaKey = (String)props.get(domKey+"._property");
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// if property is set but without value, read elementname for this mapping:
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if ( helmaKey.equals("") )
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helmaKey = childElement.getNodeName().replace(':',defaultSeparator);
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if (DEBUG) debug("child-2-property mapping, helmaKey " + helmaKey + " for domKey " + domKey);
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if ( helmaNode.getNode(helmaKey,false)==null ) {
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convert( childElement, helmaNode.createNode(helmaKey) );
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if (DEBUG) debug( "read " + childElement.toString() + helmaNode.getNode(helmaKey,false).toString() );
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}
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continue;
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}
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System.out.println(msg.toString());
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}
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//
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// map it to one of the children-lists
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helma.objectmodel.INode newHelmaNode = null;
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String childrenMapping = (String)props.get(element.getNodeName().toLowerCase()+"._children");
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// do we need a mapping directly among _children of helmaNode?
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// can either be through property elname._children=_all or elname._children=childname
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if( childrenMapping!=null && ( childrenMapping.equals("_all") || childrenMapping.equals(childElement.getNodeName()) ) ) {
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newHelmaNode = convert(childElement, helmaNode.createNode(null) );
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}
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// which name to choose for a virtual subnode:
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helmaKey = (String)props.get(domKey);
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if ( helmaKey==null ) {
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helmaKey = childElement.getNodeName().replace(':',defaultSeparator);
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}
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// try to get the virtual node
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helma.objectmodel.INode worknode = helmaNode.getNode( helmaKey, false );
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if ( worknode==null ) {
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// if virtual node doesn't exist, create it
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worknode = helmaNode.createNode( helmaKey );
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}
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if (DEBUG) debug( "mounting child "+ childElement.getNodeName() + " at worknode " + worknode.toString() );
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// now mount it, possibly re-using the helmaNode that's been created before
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if ( newHelmaNode!=null ) {
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worknode.addNode(newHelmaNode);
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} else {
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convert( childElement, worknode.createNode( null ) );
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}
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}
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// forget about other types (comments etc)
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continue;
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}
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// if there's some text content for this element, map it:
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if ( textcontent.length()>0 ) {
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helmaKey = (String)props.get(element.getNodeName().toLowerCase()+"._text");
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if ( helmaKey==null )
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helmaKey = "text";
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helmaNode.setString(helmaKey, textcontent.toString().trim() );
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}
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return helmaNode;
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}
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/**
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* set element's attributes as properties of helmaNode
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*/
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private INode attributes( Element element, INode helmaNode ) {
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NamedNodeMap nnm = element.getAttributes();
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int len = nnm.getLength();
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for ( int i=0; i<len; i++ ) {
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org.w3c.dom.Node attr = nnm.item(i);
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if ( attr.getNodeName().equals("_prototype") ) {
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helmaNode.setPrototype( attr.getNodeValue() );
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} else if ( attr.getNodeName().equals("_name") ) {
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helmaNode.setName( attr.getNodeValue() );
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} else {
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String helmaKey = (String)props.get(element.getNodeName().toLowerCase()+"._attribute."+attr.getNodeName().toLowerCase());
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if ( helmaKey==null )
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helmaKey = attr.getNodeName().replace(':',defaultSeparator);
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helmaNode.setString( helmaKey, attr.getNodeValue() );
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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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* utility function
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*/
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private void extractProperties( Properties props ) {
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if ( props.containsKey("separator") ) {
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defaultSeparator = ((String)props.get("separator")).charAt(0);
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}
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}
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/** for testing */
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void debug(Object msg) {
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for ( int i=0; i<offset; i++ ) {
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System.out.print(" ");
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}
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System.out.println(msg.toString());
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}
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public static void main ( String args[] ) {
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}
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public static void main ( String args[] ) {
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}
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}
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