com.google.code.pentahoflashcharts.charts.pfcxml.ChartBuilder.java Source code

Introduction

Here is the source code for com.google.code.pentahoflashcharts.charts.pfcxml.ChartBuilder.java

Source

/*
 * This program is free software; you can redistribute it and/or modify it under the 
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software 
 * Foundation.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this 
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html 
 * or from the Free Software Foundation, Inc., 
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * 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 Lesser General Public License for more details.
 *
 * Copyright 2009 Pentaho Corporation.  
 * Copyright 2009 Bayon Technologies.
 * All rights reserved.
 */
package com.google.code.pentahoflashcharts.charts.pfcxml;

import java.util.StringTokenizer;

import jofc2.model.Chart;
import jofc2.model.Text;
import jofc2.model.axis.YAxis;

import org.dom4j.Node;
import org.pentaho.commons.connection.IPentahoResultSet;

public abstract class ChartBuilder {

    public abstract Chart build(Node root, IPentahoResultSet data);

    public static void setOnClick(jofc2.model.elements.Element e, Node root, String xpath) {
        if (getValue(root.selectSingleNode(xpath)) != null) {
            e.setOnClick(getNodeValue(root.selectSingleNode(xpath)));
        }

    }

    public static void setLink(jofc2.model.elements.Element e, Node root, String xpath) {
        if (getValue(root.selectSingleNode(xpath)) != null) {
            // TODO: this was setLink() before.  need to figure out what that was.
            e.setOnClick(getNodeValue(root.selectSingleNode(xpath)));
        }

    }

    public static String getValue(Node n) {

        if (n != null && n.getText() != null && n.getText().length() > 0) {
            return n.getText().trim();
        } else {
            return null;
        }

    }

    public static String getNodeValue(Node n) {
        return n.getText().trim();
    }

    public static String[] fillLabels(Node rightstepsNode) {
        String[] labels;
        String labelStr = getNodeValue(rightstepsNode);
        StringTokenizer st = new StringTokenizer(labelStr, ",");
        labels = new String[st.countTokens()];
        int i = 0;
        while (st.hasMoreTokens()) {
            String label = st.nextToken();
            labels[i] = label.trim();
            i++;

        }
        return labels;
    }

    public static void setYAxisRange(Chart c, Node stepsNode, Node yMaxNode) {
        YAxis yaxis = new YAxis();
        int y_max = 10000;
        int y_step = 10;
        if (stepsNode != null && stepsNode.getText().length() > 0) {
            y_step = Integer.parseInt(stepsNode.getText().trim());
        }

        if (yMaxNode != null && yMaxNode.getText().length() > 0) {
            y_max = Integer.parseInt(yMaxNode.getText().trim());
        }
        yaxis.setRange(0, y_max, y_step);

        c.setYAxis(yaxis);
    }

    public static void addLabels(YAxis y_axis_right, Node rightstepsNode) {
        String[] labels = null;
        labels = fillLabels(rightstepsNode);
        y_axis_right.setLabels(labels);
    }

}