ro.zg.netcell.vaadin.DataTranslationUtils.java Source code

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Here is the source code for ro.zg.netcell.vaadin.DataTranslationUtils.java

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/*******************************************************************************
 * Copyright 2011 Adrian Cristian Ionescu
 * 
 * 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 ro.zg.netcell.vaadin;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import ro.zg.netcell.constants.InputParameterType;
import ro.zg.netcell.vo.InputParameter;

import com.vaadin.data.util.ObjectProperty;
import com.vaadin.data.util.PropertysetItem;
import com.vaadin.ui.Button;
import com.vaadin.ui.Field;
import com.vaadin.ui.Form;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;

public class DataTranslationUtils {

    public static ObjectProperty inputParameterToObjectProperty(InputParameter param) {
        Object value = param.getValue();
        if (value == null) {
            value = "";
        }
        return new ObjectProperty(value, InputParameterType.toJavaClass(param.getType()));
    }

    public static PropertysetItem inputParameterListToPropertysetItem(List<InputParameter> list) {
        PropertysetItem psi = new PropertysetItem();
        for (InputParameter p : list) {
            psi.addItemProperty(p.getName(), inputParameterToObjectProperty(p));
        }

        return psi;
    }

    public static Form createFormFromInputParameterList(List<InputParameter> list) {
        final Form form = new Form();
        form.setItemDataSource(inputParameterListToPropertysetItem(list));
        for (InputParameter p : list) {
            Field f = form.getField(p.getName());
            f.setRequired(p.isMandatory());
        }
        form.setWidth("40%");
        form.setHeight("30%");
        form.getLayout().setMargin(true);
        Button submitButton = new Button("Submit");
        form.getFooter().addComponent(submitButton);
        submitButton.addListener(new ClickListener() {

            @Override
            public void buttonClick(ClickEvent event) {
                form.commit();
            }
        });
        Button discardButton = new Button("Discard");
        form.getFooter().addComponent(discardButton);
        discardButton.addListener(new ClickListener() {

            @Override
            public void buttonClick(ClickEvent event) {
                form.discard();
            }
        });
        form.setImmediate(true);

        return form;
    }

    public static Map<String, Object> getFormFieldsAsMap(Form form) {
        HashMap<String, Object> map = new HashMap<String, Object>();
        for (Object fieldId : form.getItemPropertyIds()) {
            map.put(fieldId.toString(), form.getItemProperty(fieldId).getValue());
        }
        return map;
    }
}