net.karlmartens.platform.datatable.DataTableCell.java Source code

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Here is the source code for net.karlmartens.platform.datatable.DataTableCell.java

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/**
 *   Copyright 2012 Karl Martens
 *
 *   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.
 *
 *   net.karlmartens.platform, is a library of shared basic utility classes
 */

package net.karlmartens.platform.datatable;

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

import org.joda.time.DateTimeFieldType;
import org.joda.time.LocalDate;
import org.joda.time.LocalDateTime;
import org.joda.time.LocalTime;
import org.joda.time.base.BaseLocal;

import com.google.gson.Gson;
import com.google.gson.JsonElement;
import com.google.gson.JsonNull;
import com.google.gson.JsonObject;
import com.google.gson.JsonPrimitive;

public class DataTableCell {

    private final Map<String, Object> _properties = new HashMap<String, Object>();

    private Object _value;
    private String _formattedValue;

    public DataTableCell value(String value) {
        return doSetValue(value);
    }

    public DataTableCell value(Number value) {
        return doSetValue(value);
    }

    public DataTableCell value(Boolean value) {
        return doSetValue(value);
    }

    public DataTableCell value(LocalDate value) {
        return doSetValue(value);
    }

    public DataTableCell value(LocalDateTime value) {
        return doSetValue(value);
    }

    public DataTableCell value(LocalTime value) {
        return doSetValue(value);
    }

    private DataTableCell doSetValue(Object value) {
        _value = value;
        return this;
    }

    public Object value() {
        return _value;
    }

    public DataTableCell formattedValue(String formattedValue) {
        _formattedValue = formattedValue;
        return this;
    }

    public String formattedValue() {
        return _formattedValue;
    }

    public Map<String, Object> properties() {
        return _properties;
    }

    public Object property(String name) {
        return _properties.get(name);
    }

    public void setProperty(String name, Object value) {
        _properties.put(name, value);
    }

    public void release() {
        _properties.clear();
        _value = null;
        _formattedValue = null;
    }

    public JsonElement toJson() {
        final JsonObject json = new JsonObject();
        json.add("v", creasteJsonElement(_value));
        json.addProperty("f", _formattedValue);
        return json;
    }

    @Override
    public String toString() {
        return new Gson().toJson(toJson());
    }

    private static JsonElement creasteJsonElement(Object o) {
        if (o == null)
            return JsonNull.INSTANCE;

        if (o instanceof String)
            return new JsonPrimitive((String) o);

        if (o instanceof Boolean)
            return new JsonPrimitive((Boolean) o);

        if (o instanceof Number)
            return new JsonPrimitive((Number) o);

        if (o instanceof BaseLocal) {
            final BaseLocal date = (BaseLocal) o;
            final JsonObject json = new JsonObject();
            json.add("year", createJsonElement(DateTimeFieldType.year(), date));
            json.add("month", createJsonElement(DateTimeFieldType.monthOfYear(), date));
            json.add("day", createJsonElement(DateTimeFieldType.dayOfMonth(), date));
            json.add("hour", createJsonElement(DateTimeFieldType.hourOfDay(), date));
            json.add("minute", createJsonElement(DateTimeFieldType.minuteOfHour(), date));
            json.add("second", createJsonElement(DateTimeFieldType.secondOfMinute(), date));
            json.add("millis", createJsonElement(DateTimeFieldType.millisOfSecond(), date));
            return json;
        }

        throw new UnsupportedOperationException();
    }

    private static JsonElement createJsonElement(DateTimeFieldType field, BaseLocal local) {
        if (!local.isSupported(field))
            return JsonNull.INSTANCE;

        return new JsonPrimitive(local.get(field));
    }
}