package org.jbpm.compiler.xml.processes;
import java.util.HashSet;
import org.drools.process.core.datatype.DataType;
import org.drools.process.core.datatype.impl.type.StringDataType;
import org.drools.xml.BaseAbstractHandler;
import org.drools.xml.ExtensibleXmlParser;
import org.drools.xml.Handler;
import org.jbpm.process.core.ValueObject;
import org.jbpm.workflow.core.Node;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
public class MetaDataHandler extends BaseAbstractHandler
implements
Handler {
public MetaDataHandler() {
if ( (this.validParents == null) && (this.validPeers == null) ) {
this.validParents = new HashSet();
this.validParents.add( Node.class );
this.validPeers = new HashSet();
this.validPeers.add( null );
this.allowNesting = false;
}
}
public Object start(final String uri,
final String localName,
final Attributes attrs,
final ExtensibleXmlParser parser) throws SAXException {
parser.startElementBuilder( localName,
attrs );
Node node = (Node) parser.getParent();
final String name = attrs.getValue("name");
emptyAttributeCheck(localName, "name", name, parser);
return new MetaDataWrapper(node, name);
}
public Object end(final String uri,
final String localName,
final ExtensibleXmlParser parser) throws SAXException {
parser.endElementBuilder();
return null;
}
public Class generateNodeFor() {
return MetaDataWrapper.class;
}
public class MetaDataWrapper implements ValueObject {
private Node node;
private String name;
public MetaDataWrapper(Node node, String name) {
this.node = node;
this.name = name;
}
public Object getValue() {
return node.getMetaData(name);
}
public void setValue(Object value) {
node.setMetaData(name, value);
}
public DataType getType() {
return new StringDataType();
}
public void setType(DataType type) {
}
}
}