org.richfaces.tests.metamer.model.treeAdaptor.KeyConverter.java Source code

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Here is the source code for org.richfaces.tests.metamer.model.treeAdaptor.KeyConverter.java

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 * Lesser General Public License for more details.
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package org.richfaces.tests.metamer.model.treeAdaptor;

import java.util.List;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.convert.FacesConverter;

import org.apache.commons.lang.CharUtils;
import org.richfaces.tests.metamer.bean.rich.RichTreeModelRecursiveAdaptorBean;

import com.google.common.base.Strings;

/**
 * @author <a href="mailto:lfryc@redhat.com">Lukas Fryc</a>
 * @version $Revision: 22493 $
 */
@FacesConverter("treeAdaptorKeyConverter")
public class KeyConverter implements Converter {

    public Object getAsObject(FacesContext context, UIComponent component, String value) {
        List<RecursiveNode> list = RichTreeModelRecursiveAdaptorBean.getRootNodesStatically();
        RecursiveNode recursive = null;
        ModelNode model = null;

        char alpha = ' ';
        for (int i = 0; i < value.length(); i++) {
            char ch = value.charAt(i);
            if (CharUtils.isAsciiAlpha(ch)) {
                alpha = ch;
                switch (alpha) {
                case 'M':
                    model = recursive.getModel();
                    break;
                default:
                }
            }
            if (CharUtils.isAsciiNumeric(ch)) {
                int num = CharUtils.toIntValue(ch);
                switch (alpha) {
                case 'R':
                    recursive = list.get(num);
                    list = recursive.getRecursiveList();
                    break;

                case 'K':
                    for (ModelNodeImpl.K key : model.getMap().keySet()) {
                        if (key.number == num) {
                            return key;
                        }
                    }
                    throw new IllegalStateException();
                default:
                }
            }
        }

        if (Strings.isNullOrEmpty(value)) {
            return null;
        }

        return null;
    }

    public String getAsString(FacesContext context, UIComponent component, Object value) {
        if (value instanceof ModelNodeImpl.K) {
            ModelNodeImpl.K k = (ModelNodeImpl.K) value;
            return k.getLabel();
        }

        if (value == null) {
            return "";
        }

        throw new IllegalStateException();
    }

}