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//
// Nenya library - tools for developing networked games
// Copyright (C) 2002-2012 Three Rings Design, Inc., All Rights Reserved
// https://github.com/threerings/nenya
//
// This library is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation; either version 2.1 of the License, or
// (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package com.threerings.miso.tools.xml;
import java.util.ArrayList;
import org.xml.sax.Attributes;
import org.apache.commons.digester.Digester;
import org.apache.commons.digester.Rule;
import com.google.common.collect.Lists;
import com.samskivert.xml.CallMethodSpecialRule;
import com.samskivert.xml.SetFieldRule;
import com.samskivert.xml.SetPropertyFieldsRule;
import com.threerings.miso.data.ObjectInfo;
import com.threerings.miso.data.SimpleMisoSceneModel;
import com.threerings.tools.xml.NestableRuleSet;
/**
* Used to parse a {@link SimpleMisoSceneModel} from XML.
*/
public class SimpleMisoSceneRuleSet implements NestableRuleSet
{
// documentation inherited from interface
public String getOuterElement ()
{
return SimpleMisoSceneWriter.OUTER_ELEMENT;
}
// documentation inherited from interface
public void addRuleInstances (String prefix, Digester dig)
{
// this creates the appropriate instance when we encounter our
// prefix tag
dig.addRule(prefix, new Rule() {
@Override
public void begin (String namespace, String name,
Attributes attributes) throws Exception {
digester.push(createMisoSceneModel());
}
@Override
public void end (String namespace, String name) throws Exception {
digester.pop();
}
});
// set up rules to parse and set our fields
dig.addRule(prefix + "/width", new SetFieldRule("width"));
dig.addRule(prefix + "/height", new SetFieldRule("height"));
dig.addRule(prefix + "/viewwidth", new SetFieldRule("vwidth"));
dig.addRule(prefix + "/viewheight", new SetFieldRule("vheight"));
dig.addRule(prefix + "/base", new SetFieldRule("baseTileIds"));
dig.addObjectCreate(prefix + "/objects", ArrayList.class.getName());
dig.addObjectCreate(prefix + "/objects/object",
ObjectInfo.class.getName());
dig.addSetNext(prefix + "/objects/object", "add",
Object.class.getName());
dig.addRule(prefix + "/objects/object", new SetPropertyFieldsRule());
dig.addRule(prefix + "/objects", new CallMethodSpecialRule() {
@Override
public void parseAndSet (String bodyText, Object target)
throws Exception
{
@SuppressWarnings("unchecked") ArrayList ilist =
(ArrayList)target;
ArrayList ulist = Lists.newArrayList();
SimpleMisoSceneModel model = (SimpleMisoSceneModel)
digester.peek(1);
// filter interesting and uninteresting into two lists
for (int ii = 0; ii < ilist.size(); ii++) {
ObjectInfo info = ilist.get(ii);
if (!info.isInteresting()) {
ilist.remove(ii--);
ulist.add(info);
}
}
// now populate the model
SimpleMisoSceneModel.populateObjects(model, ilist, ulist);
}
});
}
protected SimpleMisoSceneModel createMisoSceneModel ()
{
return new SimpleMisoSceneModel(0, 0, 0, 0);
}
}
