no.dusken.barweb.admin.editor.GenericEditor.java Source code

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Here is the source code for no.dusken.barweb.admin.editor.GenericEditor.java

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/*
 Copyright 2009 - 2010 Under Dusken
    
 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 no.dusken.barweb.admin.editor;

import no.dusken.common.model.DuskenObject;
import no.dusken.common.service.GenericService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Required;

import java.beans.PropertyEditorSupport;

public class GenericEditor<T extends DuskenObject> extends PropertyEditorSupport {

    protected final static Logger log = LoggerFactory.getLogger(GenericEditor.class);

    private GenericService<T> genericService;

    @Override
    public String getAsText() {
        if (log.isDebugEnabled())
            log.debug(getValue().toString());
        @SuppressWarnings({ "unchecked" })
        T entity = (T) getValue();
        if (entity == null)
            return " ";
        Long ID = entity.getId();
        if (ID == null)
            return " ";
        if (log.isDebugEnabled())
            log.debug(ID.toString());
        return ID.toString();
    }

    @Override
    public void setAsText(String string) throws IllegalArgumentException {
        if (string == null || string.equals("")) {
            setValue(null);
            return;
        }
        Long ID;
        try {
            ID = Long.parseLong(string);
        } catch (NumberFormatException e) {
            setValue(null);
            throw new IllegalArgumentException("Not a valid ID: " + string);
        }
        if (log.isDebugEnabled()) {
            log.debug("getting entity with ID: " + ID);
            T entity = genericService.findOne(ID);
            log.debug("got " + entity.getClass());
            log.debug("got entity: " + entity);
            setValue(entity);
            return;
        }
        setValue(genericService.findOne(ID));
    }

    @Required
    public void setGenericService(GenericService<T> genericService) {
        this.genericService = genericService;
    }
}