/*******************************************************************************
* Copyright 2010 Simon Mieth
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package org.kabeja.dxf.parser.filter;
import org.kabeja.dxf.parser.DXFValue;
import org.kabeja.parser.ParseException;
abstract class DXFStreamEntityFilter extends DXFStreamSectionFilter {
private static String SECTION_KEY = "ENTITIES";
public static final int ENTITY_START = 0;
protected boolean entitySection = false;
protected boolean parseEntity = false;
protected boolean parseHeader = false;
protected void parseSection(int groupCode, DXFValue value)
throws ParseException {
if (parseHeader) {
if (value.getValue().equals(SECTION_KEY)) {
this.entitySection = true;
this.parseHeader = false;
}
} else if (entitySection) {
if (groupCode == ENTITY_START) {
if (parseEntity) {
endEntity();
} else {
parseEntity = true;
}
startEntity(value.getValue());
}
parseEntity(groupCode, value);
return;
}
handler.parseGroup(groupCode, value);
}
protected void sectionEnd(String Section) throws ParseException {
if (section.equals(SECTION_KEY)) {
this.entitySection = false;
}
}
protected void sectionStart(String Section) throws ParseException {
if (section.equals(SECTION_KEY)) {
this.parseHeader = true;
}
}
protected abstract void startEntity(String type) throws ParseException;
protected abstract void endEntity() throws ParseException;
protected abstract void parseEntity(int groupCode, DXFValue value)
throws ParseException;
}