Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/server/meta/Converter.java @ 821:56069d236afa
Datacage: Build UI tree in a more compatible style
flys-client/trunk@2479 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Tue, 09 Aug 2011 13:37:40 +0000 |
parents | 57ea5af8a967 |
children | ffb98b228b3c |
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package de.intevation.flys.client.server.meta; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import org.w3c.dom.Attr; import org.w3c.dom.NamedNodeMap; import de.intevation.flys.client.shared.model.DataCageTree; import de.intevation.flys.client.shared.model.DataCageNode; import de.intevation.flys.client.shared.model.AttrList; import java.util.ArrayList; import java.util.Map; import java.util.HashMap; import de.intevation.artifacts.common.utils.XMLUtils; public class Converter { public interface NodeConverter { DataCageNode convert(Element node, Converter converter); } // interface NodeConverter public static class NameConverter implements NodeConverter { public DataCageNode convert(Element node, Converter converter) { System.err.println("NameConverter called"); DataCageNode out = new DataCageNode( node.getAttribute("name"), toAttrList(node.getAttributes())); converter.convertChildren(out, node); return out; } } // class NameConverter public static class I18NConverter implements NodeConverter { public DataCageNode convert(Element node, Converter converter) { System.err.println("I18NConverter called"); DataCageNode out = new DataCageNode( "${" + node.getLocalName() + "}", toAttrList(node.getAttributes())); converter.convertChildren(out, node); return out; } } // I18NConverter protected Map<String, NodeConverter> converters; protected void convertChildren(DataCageNode parent, Element sub) { System.err.println("convertChildren called"); NodeList children = sub.getChildNodes(); for (int i = 0, N = children.getLength(); i < N; ++i) { Node child = children.item(i); if (child.getNodeType() == Node.ELEMENT_NODE) { String name = child.getLocalName(); NodeConverter converter = converters.get(name); if (converter == null) { converter = I18N_CONVERTER; } DataCageNode son = converter.convert( (Element)child, this); parent.addChild(son); } } // for all children } public Converter() { converters = new HashMap<String, NodeConverter>(); registerConverters(); } public static final NodeConverter NAME_CONVERTER = new NameConverter(); public static final NodeConverter I18N_CONVERTER = new I18NConverter(); protected void registerConverters() { System.err.println("register converters called"); converters.put("river", NAME_CONVERTER); converters.put("gauge", NAME_CONVERTER); converters.put("historical", NAME_CONVERTER); converters.put("column", NAME_CONVERTER); } public DataCageTree convert(Document document) { System.err.println("convert called"); //System.err.println(XMLUtils.toString(document)); ArrayList<DataCageNode> roots = new ArrayList<DataCageNode>(); NodeList nodes = document.getChildNodes(); for (int i = 0, N = nodes.getLength(); i < N; ++i) { Node node = nodes.item(i); if (node.getNodeType() == Node.ELEMENT_NODE) { System.err.println("search for name: " + node.getLocalName()); NodeConverter converter = converters.get(node.getLocalName()); if (converter == null) { converter = I18N_CONVERTER; } roots.add(converter.convert((Element)node, this)); } } return roots.isEmpty() ? new DataCageTree() : new DataCageTree(roots.get(0)); } public static AttrList toAttrList(NamedNodeMap nodeMap) { if (nodeMap == null) { return null; } int N = nodeMap.getLength(); if (N == 0) { return null; } AttrList result = new AttrList(N); for (int i = 0; i < N; ++i) { Node node = nodeMap.item(i); if (node.getNodeType() == Node.ATTRIBUTE_NODE) { Attr attr = (Attr)node; String key = attr.getName(); String value = attr.getValue(); result.add(key, value); } } return result; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :