UIAssistant.java

/*
 * This file is part of the aidGer project.
 *
 * Copyright (C) 2010-2013 The aidGer Team
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package de.aidger.view.models;

import de.aidger.model.Runtime;
import de.aidger.model.models.Assistant;
import de.aidger.model.models.CostUnit;
import de.aidger.view.tabs.ViewerTab.DataType;

/**
 * The UI assistant is used for prettier rendering of the model.
 * 
 * @author aidGer Team
 */
public class UIAssistant extends Assistant implements UIModel,
        Comparable<UIAssistant> {

    /**
     * The total hours the assistant is employed for a course.
     */
    private double totalHours = 0.0;

    /**
     * The funds the assistant is payed from.
     */
    private String funds = "";

    /**
     * Initializes the Assistant class.
     */
    public UIAssistant() {
    }

    /**
     * Initializes the Assistant class with the given assistant model.
     * 
     * @param a
     *            the assistant model
     */
    public UIAssistant(Assistant a) {
        super(a);
    }

    /**
     * Sets the total hours for this assistant.
     * 
     * @param totalHours
     *            the total hours
     */
    public void setTotalHours(double totalHours) {
        this.totalHours = totalHours;
    }

    /**
     * Sets the funds for this assistant.
     * 
     * @param tokenDB
     *            the database token of the funds
     */
    public void setFunds(String tokenDB) {
        CostUnit costUnit = (new CostUnit()).fromTokenDB(tokenDB);
        funds = costUnit == null ? tokenDB : costUnit.getFunds();
    }

    /**
     * Returns the given string with the given length filled with spaces.
     * 
     * @param s
     *            the string
     * @param len
     *            the length of the new string
     * @return the given string with the given length filled with spaces
     */
    private String fillSpaces(String s, int len) {
        final StringBuilder builder = new StringBuilder(len);
        builder.append(s);

        for (int t = s.length(); t < len; ++t) {
            builder.append(' ');
        }

        return builder.toString();
    }

    /*
     * (non-Javadoc)
     * 
     * @see de.aidger.model.AbstractModel#toString()
     */
    @Override
    public String toString() {
        String name = getFirstName() + " " + getLastName();

        if (getFirstName() == null || getLastName() == null) {
            return "";
        } else if (totalHours == 0.0) {
            return name;
        } else if (!funds.isEmpty()) {
            return fillSpaces(name, 28) + fillSpaces(totalHours + "h", 8)
                    + funds;
        } else {
            return name + " (" + totalHours + "h)";
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see de.aidger.view.models.UIModel#getDataType()
     */
    @Override
    public DataType getDataType() {
        return DataType.Assistant;
    }

    /**
     * Check if two objects are equal.
     * 
     * @param o
     *            The other object
     * @return True if both are equal
     */
    @Override
    public boolean equals(Object o) {
        if (o instanceof Assistant) {
            Assistant a = (Assistant) o;
            return (getFirstName() == null ? a.getFirstName() == null : (a
                .getFirstName() == null ? false : a.getFirstName().equals(
                getFirstName())))
                    && (getLastName() == null ? a.getLastName() == null : (a
                        .getLastName() == null ? false : a.getLastName()
                        .equals(getLastName())))
                    && (getEmail() == null ? a.getEmail() == null : (a
                        .getEmail() == null ? false : a.getEmail().equals(
                        getEmail())))
                    && (getQualification() == null ? a.getQualification() == null
                            : (a.getQualification() == null ? false : a
                                .getQualification().equals(getQualification())));
        } else {
            return false;
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see java.lang.Comparable#compareTo(java.lang.Object)
     */
    @Override
    public int compareTo(UIAssistant o) {
        return toString().compareTo(o.toString());
    }
}