/*
* Copyright 2017
* Ubiquitous Knowledge Processing (UKP) Lab and FG Language Technology
* Technische Universität Darmstadt
*
* 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 de.tudarmstadt.ukp.clarin.webanno.support.lambda;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.markup.html.AjaxLink;
import org.apache.wicket.markup.html.panel.FeedbackPanel;
import org.slf4j.LoggerFactory;
public class LambdaAjaxLink
extends AjaxLink<Void>
{
private static final long serialVersionUID = 3946442967075930557L;
private AjaxCallback action;
private AjaxExceptionHandler exceptionHandler;
public LambdaAjaxLink(String aId, AjaxCallback aAction)
{
this(aId, aAction, null);
}
public LambdaAjaxLink(String aId, AjaxCallback aAction, AjaxExceptionHandler aExceptionHandler)
{
super(aId);
action = aAction;
exceptionHandler = aExceptionHandler;
}
@Override
public void onClick(AjaxRequestTarget aTarget)
{
try {
action.accept(aTarget);
}
catch (Exception e) {
if (exceptionHandler != null) {
exceptionHandler.accept(aTarget, e);
}
else {
LoggerFactory.getLogger(getPage().getClass()).error("Error: " + e.getMessage(), e);
error("Error: " + e.getMessage());
aTarget.addChildren(getPage(), FeedbackPanel.class);
}
}
}
}