locationbuilder.java

来自「Online Map for Mobile」· Java 代码 · 共 59 行

import java.util.Vector;

public class LocationBuilder extends XMLBuilder {
    public XMLBuilder addElement(String name) {
        if (name.equals("point")) { 
            return new XMLBuilder() { 
                    public void addAttribute(String name, String value) {
                        if (name.equals("x")) {                             
                            x = value;
                        } else if (name.equals("y")) {
                            y = value;
                        } else { 
                            throw new XMLException("\"x\" or \"y\" attributes expected");
                        }
                    }

                    public void closeElement() { 
                        points.addElement(x);
                        points.addElement(y);
                    }

                    private String x;
                    private String y;
                };
        } else { 
            throw new XMLException("<point> elements expected");
        }
    }

    public void addAttribute(String name, String value) {
        if (name.equals("name")) { 
            location.name = value;
        } else if (name.equals("image")) { 
            location.image = value;
        } else {
            throw new XMLException("\"name\" or \"type\" attributes expected");
        }
    }

    public void setValue(String value) { 
        location.info = value;
    }

    public void closeElement() throws NumberFormatException {
        Vector src = points;
        short[] dst = location.points = new short[points.size()];        
        for (int i = 0, n = dst.length; i < n; i++) { 
            dst[i] = Short.parseShort((String)src.elementAt(i));
        }
    }

    LocationBuilder(Location location) { 
        this.location = location;
        points = new Vector();
    }

    Location location;
    Vector   points;
}