com.basetechnology.s0.agentserver.field.FloatField.java Source code

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Here is the source code for com.basetechnology.s0.agentserver.field.FloatField.java

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/**
 * Copyright 2012 John W. Krupansky d/b/a Base Technology
 * 
 * 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 com.basetechnology.s0.agentserver.field;

import org.json.JSONException;
import org.json.JSONObject;

import com.basetechnology.s0.agentserver.script.intermediate.FloatTypeNode;
import com.basetechnology.s0.agentserver.script.intermediate.IntegerTypeNode;
import com.basetechnology.s0.agentserver.script.intermediate.Symbol;
import com.basetechnology.s0.agentserver.script.intermediate.SymbolTable;
import com.basetechnology.s0.agentserver.script.intermediate.TypeNode;
import com.basetechnology.s0.agentserver.script.runtime.value.FloatValue;
import com.basetechnology.s0.agentserver.script.runtime.value.Value;

public class FloatField extends Field {
    public double defaultValue;
    public double minValue;
    public double maxValue;
    public int nominalWidth;

    public FloatField(SymbolTable symbolTable, String name) {
        this.symbol = new Symbol(symbolTable, name, IntegerTypeNode.one);
        this.label = name;
        minValue = Double.MIN_VALUE;
        maxValue = Double.MAX_VALUE;
    }

    public FloatField(SymbolTable symbolTable, String name, String label, String description, double defaultValue,
            double minValue, double maxValue, int nominalWidth, String compute) {
        this.symbol = new Symbol(symbolTable, name, FloatTypeNode.one);
        this.label = label;
        this.description = description;
        this.defaultValue = defaultValue;
        this.minValue = minValue;
        this.maxValue = maxValue;
        this.nominalWidth = nominalWidth;
        this.compute = compute;
    }

    public Field clone() {
        return new FloatField(symbol.symbolTable, symbol.name, label, description, defaultValue, minValue, maxValue,
                nominalWidth, compute);
    }

    public Object getDefaultValue() {
        return defaultValue;
    }

    public Value getDefaultValueNode() {
        return new FloatValue(defaultValue);
    }

    public TypeNode getType() {
        return FloatTypeNode.one;
    }

    public static Field fromJson(SymbolTable symbolTable, JSONObject fieldJson) {
        String type = fieldJson.optString("type");
        if (type == null || !type.equals("float"))
            return null;
        String name = fieldJson.has("name") ? fieldJson.optString("name") : null;
        String label = fieldJson.has("label") ? fieldJson.optString("label") : null;
        String description = fieldJson.has("description") ? fieldJson.optString("description") : null;
        double defaultValue = fieldJson.has("default_value") ? fieldJson.optDouble("default_value") : 0;
        double minValue = fieldJson.has("min_value") ? fieldJson.optDouble("min_value") : Double.MIN_VALUE;
        double maxValue = fieldJson.has("max_value") ? fieldJson.optDouble("max_value") : Double.MAX_VALUE;
        int nominalWidth = fieldJson.has("nominal_width") ? fieldJson.optInt("nominal_width") : 0;
        String compute = fieldJson.has("compute") ? fieldJson.optString("compute") : null;
        return new FloatField(symbolTable, name, label, description, defaultValue, minValue, maxValue, nominalWidth,
                compute);
    }

    public JSONObject toJson() throws JSONException {
        JSONObject json = new JSONObject();
        json.put("type", "float");
        if (symbol.name != null)
            json.put("name", symbol.name);
        if (label != null)
            json.put("label", label);
        if (description != null)
            json.put("description", description);
        if (defaultValue != 0)
            json.put("default_value", defaultValue);
        if (minValue != Double.MIN_VALUE)
            json.put("min_value", minValue);
        if (minValue != Double.MAX_VALUE)
            json.put("max_value", maxValue);
        if (nominalWidth != 0)
            json.put("nominal_width", nominalWidth);
        if (compute != null)
            json.put("compute", compute);
        return json;
    }

    public String toString() {
        return "[Float field symbol: " + symbol + " label: " + label + " description: '" + description + "'"
                + " default value: " + defaultValue + " min value: " + minValue + " max value: " + maxValue
                + " nominal width: " + nominalWidth + " compute: (" + compute + ")" + "]";
    }
}