Example usage for org.jfree.chart.util Args nullNotPermitted

Introduction

In this page you can find the example usage for org.jfree.chart.util Args nullNotPermitted.

Prototype

public static void nullNotPermitted(Object param, String name) 

Source Link

Document

Throws an IllegalArgumentException if the supplied param is null .

Usage

From source file:org.jfree.data.DataUtils.java

/**
 * Returns a clone of the specified array.
 *
 * @param source  the source array ({@code null} not permitted).
 *
 * @return A clone of the array./*from   w ww . j a  v a  2  s .com*/
 *
 * @since 1.0.13
 */
public static double[][] clone(double[][] source) {
    Args.nullNotPermitted(source, "source");
    double[][] clone = new double[source.length][];
    for (int i = 0; i < source.length; i++) {
        if (source[i] != null) {
            double[] row = new double[source[i].length];
            System.arraycopy(source[i], 0, row, 0, source[i].length);
            clone[i] = row;
        }
    }
    return clone;
}

---

From source file:org.jfree.data.general.HeatMapUtils.java

/**
 * Creates an image that displays the values from the specified dataset.
 *
 * @param dataset  the dataset ({@code null} not permitted).
 * @param paintScale  the paint scale for the z-values ({@code null}
 *         not permitted)./*from   w  w w .ja v  a2  s. c o  m*/
 *
 * @return A buffered image.
 */
public static BufferedImage createHeatMapImage(HeatMapDataset dataset, PaintScale paintScale) {

    Args.nullNotPermitted(dataset, "dataset");
    Args.nullNotPermitted(paintScale, "paintScale");
    int xCount = dataset.getXSampleCount();
    int yCount = dataset.getYSampleCount();
    BufferedImage image = new BufferedImage(xCount, yCount, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = image.createGraphics();
    for (int xIndex = 0; xIndex < xCount; xIndex++) {
        for (int yIndex = 0; yIndex < yCount; yIndex++) {
            double z = dataset.getZValue(xIndex, yIndex);
            Paint p = paintScale.getPaint(z);
            g2.setPaint(p);
            g2.fillRect(xIndex, yCount - yIndex - 1, 1, 1);
        }
    }
    return image;
}

---

From source file:org.jfree.data.DataUtils.java

/**
 * Returns the total of the values in one column of the supplied data
 * table.//from   www . j  ava  2 s .co m
 *
 * @param data  the table of values ({@code null} not permitted).
 * @param column  the column index (zero-based).
 *
 * @return The total of the values in the specified column.
 */
public static double calculateColumnTotal(Values2D data, int column) {
    Args.nullNotPermitted(data, "data");
    double total = 0.0;
    int rowCount = data.getRowCount();
    for (int r = 0; r < rowCount; r++) {
        Number n = data.getValue(r, column);
        if (n != null) {
            total += n.doubleValue();
        }
    }
    return total;
}

---

From source file:org.jfree.data.DataUtils.java

/**
 * Returns the total of the values in one column of the supplied data
 * table by taking only the row numbers in the array into account.
 *
 * @param data  the table of values ({@code null} not permitted).
 * @param column  the column index (zero-based).
 * @param validRows the array with valid rows (zero-based).
 *
 * @return The total of the valid values in the specified column.
 *
 * @since 1.0.13/*from  ww w. jav a 2 s  . c  o  m*/
 */
public static double calculateColumnTotal(Values2D data, int column, int[] validRows) {
    Args.nullNotPermitted(data, "data");
    double total = 0.0;
    int rowCount = data.getRowCount();
    for (int v = 0; v < validRows.length; v++) {
        int row = validRows[v];
        if (row < rowCount) {
            Number n = data.getValue(row, column);
            if (n != null) {
                total += n.doubleValue();
            }
        }
    }
    return total;
}

---

From source file:org.jfree.data.DataUtils.java

/**
 * Returns the total of the values in one row of the supplied data
 * table./*from  w ww  .j ava  2s . c  o m*/
 *
 * @param data  the table of values ({@code null} not permitted).
 * @param row  the row index (zero-based).
 *
 * @return The total of the values in the specified row.
 */
public static double calculateRowTotal(Values2D data, int row) {
    Args.nullNotPermitted(data, "data");
    double total = 0.0;
    int columnCount = data.getColumnCount();
    for (int c = 0; c < columnCount; c++) {
        Number n = data.getValue(row, c);
        if (n != null) {
            total += n.doubleValue();
        }
    }
    return total;
}

---

From source file:org.jfree.data.DataUtils.java

/**
 * Returns the total of the values in one row of the supplied data
 * table by taking only the column numbers in the array into account.
 *
 * @param data  the table of values ({@code null} not permitted).
 * @param row  the row index (zero-based).
 * @param validCols the array with valid cols (zero-based).
 *
 * @return The total of the valid values in the specified row.
 *
 * @since 1.0.13//from   w w  w .  j a  v a2 s . c o  m
 */
public static double calculateRowTotal(Values2D data, int row, int[] validCols) {
    Args.nullNotPermitted(data, "data");
    double total = 0.0;
    int colCount = data.getColumnCount();
    for (int v = 0; v < validCols.length; v++) {
        int col = validCols[v];
        if (col < colCount) {
            Number n = data.getValue(row, col);
            if (n != null) {
                total += n.doubleValue();
            }
        }
    }
    return total;
}

---

From source file:org.jfree.data.DataUtils.java

/**
 * Constructs an array of {@code Number} objects from an array of
 * {@code double} primitives.//ww  w  .j a  v  a  2 s.co m
 *
 * @param data  the data ({@code null} not permitted).
 *
 * @return An array of {@code double}.
 */
public static Number[] createNumberArray(double[] data) {
    Args.nullNotPermitted(data, "data");
    Number[] result = new Number[data.length];
    for (int i = 0; i < data.length; i++) {
        result[i] = new Double(data[i]);
    }
    return result;
}

---

From source file:org.jfree.data.DataUtils.java

/**
 * Constructs an array of arrays of {@code Number} objects from a
 * corresponding structure containing {@code double} primitives.
 *
 * @param data  the data ({@code null} not permitted).
 *
 * @return An array of {@code double}./*from  w  w w.  ja  v  a  2  s . c om*/
 */
public static Number[][] createNumberArray2D(double[][] data) {
    Args.nullNotPermitted(data, "data");
    int l1 = data.length;
    Number[][] result = new Number[l1][];
    for (int i = 0; i < l1; i++) {
        result[i] = createNumberArray(data[i]);
    }
    return result;
}

---

From source file:org.jfree.data.DataUtils.java

/**
 * Returns a {@link KeyedValues} instance that contains the cumulative
 * percentage values for the data in another {@link KeyedValues} instance.
 * <p>/* www  .j  a  va 2  s.co  m*/
 * The percentages are values between 0.0 and 1.0 (where 1.0 = 100%).
 *
 * @param data  the data ({@code null} not permitted).
 *
 * @return The cumulative percentages.
 */
public static KeyedValues getCumulativePercentages(KeyedValues data) {
    Args.nullNotPermitted(data, "data");
    DefaultKeyedValues result = new DefaultKeyedValues();
    double total = 0.0;
    for (int i = 0; i < data.getItemCount(); i++) {
        Number v = data.getValue(i);
        if (v != null) {
            total = total + v.doubleValue();
        }
    }
    double runningTotal = 0.0;
    for (int i = 0; i < data.getItemCount(); i++) {
        Number v = data.getValue(i);
        if (v != null) {
            runningTotal = runningTotal + v.doubleValue();
        }
        result.addValue(data.getKey(i), new Double(runningTotal / total));
    }
    return result;
}

---

From source file:org.jfree.data.general.DatasetUtils.java

/**
 * Calculates the total of all the values in a {@link PieDataset}.  If
 * the dataset contains negative or {@code null} values, they are
 * ignored.//from  w  w  w  . j  av  a2  s  .com
 *
 * @param dataset  the dataset ({@code null} not permitted).
 *
 * @return The total.
 */
public static double calculatePieDatasetTotal(PieDataset dataset) {
    Args.nullNotPermitted(dataset, "dataset");
    List keys = dataset.getKeys();
    double totalValue = 0;
    Iterator iterator = keys.iterator();
    while (iterator.hasNext()) {
        Comparable current = (Comparable) iterator.next();
        if (current != null) {
            Number value = dataset.getValue(current);
            double v = 0.0;
            if (value != null) {
                v = value.doubleValue();
            }
            if (v > 0) {
                totalValue = totalValue + v;
            }
        }
    }
    return totalValue;
}

---

• «
• 1
• 2
• 3
• 4
• »