/**
*
* Copyright 2014 The Darks ORM Project (Liu lihua)
*
* 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 darks.orm.core.data.tags;
import java.lang.reflect.Constructor;
import java.util.HashMap;
import java.util.Map;
import org.dom4j.Element;
import darks.orm.core.data.tags.impl.ElseIfTag;
import darks.orm.core.data.tags.impl.ElseTag;
import darks.orm.core.data.tags.impl.ForTag;
import darks.orm.core.data.tags.impl.IfTag;
import darks.orm.core.data.tags.impl.SetTag;
import darks.orm.core.data.tags.impl.TrimTag;
import darks.orm.core.data.tags.impl.WhereTag;
public final class TagsFactory
{
static Map<String, Constructor<? extends AbstractTag>> tagsMap = new HashMap<String, Constructor<? extends AbstractTag>>();
static
{
addTagClass("if", IfTag.class);
addTagClass("elseif", ElseIfTag.class);
addTagClass("else", ElseTag.class);
addTagClass("foreach", ForTag.class);
addTagClass("where", WhereTag.class);
addTagClass("trim", TrimTag.class);
addTagClass("set", SetTag.class);
}
private static void addTagClass(String key, Class<? extends AbstractTag> tagClass)
{
try
{
Constructor<? extends AbstractTag> crts = tagClass.getConstructor();
tagsMap.put(key, crts);
}
catch (Exception e)
{
e.printStackTrace();
}
}
public static AbstractTag createTag(Element el, AbstractTag prevTag)
{
AbstractTag tag = createTag(el);
if (tag != null)
{
tag.setPrevTag(prevTag);
}
return tag;
}
public static AbstractTag createTag(Element el)
{
String name = el.getName();
Constructor<? extends AbstractTag> crts = tagsMap.get(name);
if (crts == null)
{
return null;
}
try
{
return crts.newInstance();
}
catch (Exception e)
{
e.printStackTrace();
}
return null;
}
}