com.thesett.aima.logic.fol.wam.debugger.monitor.RegisterSetMonitor Maven / Gradle / Ivy

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/*
 * Copyright The Sett Ltd, 2005 to 2014.
 *
 * 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.thesett.aima.logic.fol.wam.debugger.monitor;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import com.thesett.common.util.doublemaps.DoubleKeyedMap;
import com.thesett.text.api.model.TextTableModel;

/**
 * RegisterSetMonitor watches the register set of the machine, and updates a table model that contains the register
 * values to those in the register set.
 *
 * 
 * 
 * 
 * CRC Card Responsibilities  Collaborations
 * 
 Create a table model to hold the register set values. 
 Update a table model to the values in the register set. 
 *
 * @author Rupert Smith
 */
public class RegisterSetMonitor implements PropertyChangeListener
{
    /** Label for the column providing the register names. */
    public static final String REG_NAME_COL = "regName";

    /** Label for the column holding the register values. */
    public static final String REG_VALUE_COL = "regValue";

    /** The register names. */
    private static final String[] REGISTER_NAMES =
        new String[] { "ip", "hp", "hbp", "sp", "up", "ep", "bp", "b0", "trp" };

    /** The register property names, used to label the table rows. */
    private static final String[] REGISTER_LABELS =
        new String[] { "IP", "HP", "HBP", "SP", "UP", "EP", "BP", "B0", "TRP" };

    /** The table to store the registers in. */
    private final TextTableModel table;

    /** A labeled view onto the register table. */
    private final DoubleKeyedMap labeledTable;

    /**
     * Constructs a table model with labelled rows and columns to hold the register values.
     *
     * @param table The table to output the register values to.
     */
    public RegisterSetMonitor(TextTableModel table)
    {
        this.table = table;
        labeledTable = table.withLabels();

        this.table.labelColumn(REG_NAME_COL, 0);
        this.table.labelColumn(REG_VALUE_COL, 1);

        for (int i = 0; i < REGISTER_NAMES.length; i++)
        {
            this.table.labelRow(REGISTER_LABELS[i], i);
            labeledTable.put(REG_NAME_COL, REGISTER_LABELS[i], REGISTER_NAMES[i]);
        }
    }

    /** {@inheritDoc} */
    public void propertyChange(PropertyChangeEvent evt)
    {
        String hex = String.format("%08X", evt.getNewValue());
        labeledTable.put(REG_VALUE_COL, evt.getPropertyName(), hex);
    }
}

Responsibilities	Collaborations *
Create a table model to hold the register set values.
Update a table model to the values in the register set.