thoerup/side9/Side9Xml.java

package dk.thoerup.side9;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;


public class Side9Xml {
        
        static final int WIDTH = 100;
        static final String BASEURL = "http://apps.todic.net/side9/"; 

        public static Document parseXML(String str) throws SAXException, IOException, ParserConfigurationException
        {
                DocumentBuilder builder =  DocumentBuilderFactory.newInstance().newDocumentBuilder();
                return  builder.parse( new ByteArrayInputStream(str.getBytes()) );              
        }
        
        
        public static byte[] getContent(String uri) throws IOException {
                byte buffer[] = new byte[256];
                
                ByteArrayOutputStream baos = new ByteArrayOutputStream(32768); //start buffer size - instead of default 32bytes
                
                URL url = new URL(uri);
                URLConnection connection = url.openConnection();
                InputStream is = connection.getInputStream();
                
                try {
                        int count;
                        while ( (count = is.read(buffer)) != -1) {
                                baos.write(buffer, 0, count);
                        }
                } finally {
                        try {
                                is.close();
                                baos.close();
                        } catch (Exception e) {} //never mind if close throws an exception
                }
                                
                return baos.toByteArray();
        }
        
        public Side9Data loadXml() throws IOException, ParserConfigurationException, SAXException{
                String dataURL = BASEURL + "xml.php?width=" + WIDTH;
                
                byte data[] = getContent( dataURL );
                String xmlData = new String(data, "UTF-8");
                Document doc = parseXML(xmlData);               
                
                Node rootNode = doc.getDocumentElement(); // stations
                NodeList nodes = rootNode.getChildNodes();
                
                Side9Data side9Data = new Side9Data();
                
                for (int i=0; i<nodes.getLength(); i++) {
                        Node currentNode = nodes.item(i);
                        
                        String name = currentNode.getNodeName();
                        String content = null;
                        
                        if (currentNode.getFirstChild() != null)
                                content = currentNode.getFirstChild().getNodeValue(); //get the textNode - then get the text node's value

                        
                        if (name.equals("imageurl")) 
                                side9Data.url = BASEURL + content;
                        if (name.equals("width"))
                                side9Data.width = Integer.parseInt(content);                    
                        if (name.equals("height"))
                                side9Data.height = Integer.parseInt(content);
                        if (name.equals("caption"))
                                side9Data.caption = content;
                }
                                
                
                return side9Data;
        }
        
}
 
1	torben	632	package dk.thoerup.side9;
2
3			import java.io.ByteArrayInputStream;
4			import java.io.ByteArrayOutputStream;
5			import java.io.IOException;
6			import java.io.InputStream;
7			import java.net.URL;
8			import java.net.URLConnection;
9
10			import javax.xml.parsers.DocumentBuilder;
11			import javax.xml.parsers.DocumentBuilderFactory;
12			import javax.xml.parsers.ParserConfigurationException;
13
14			import org.w3c.dom.Document;
15			import org.w3c.dom.Node;
16			import org.w3c.dom.NodeList;
17			import org.xml.sax.SAXException;
18
19
20
21			public class Side9Xml {
22
23			static final int WIDTH = 100;
24			static final String BASEURL = "http://apps.todic.net/side9/";
25
26			public static Document parseXML(String str) throws SAXException, IOException, ParserConfigurationException
27			{
28			DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
29			return builder.parse( new ByteArrayInputStream(str.getBytes()) );
30			}
31
32
33			public static byte[] getContent(String uri) throws IOException {
34			byte buffer[] = new byte[256];
35
36			ByteArrayOutputStream baos = new ByteArrayOutputStream(32768); //start buffer size - instead of default 32bytes
37
38			URL url = new URL(uri);
39			URLConnection connection = url.openConnection();
40			InputStream is = connection.getInputStream();
41
42			try {
43			int count;
44			while ( (count = is.read(buffer)) != -1) {
45			baos.write(buffer, 0, count);
46			}
47			} finally {
48			try {
49			is.close();
50			baos.close();
51			} catch (Exception e) {} //never mind if close throws an exception
52			}
53
54			return baos.toByteArray();
55			}
56
57			public Side9Data loadXml() throws IOException, ParserConfigurationException, SAXException{
58			String dataURL = BASEURL + "xml.php?width=" + WIDTH;
59
60			byte data[] = getContent( dataURL );
61			String xmlData = new String(data, "UTF-8");
62			Document doc = parseXML(xmlData);
63
64			Node rootNode = doc.getDocumentElement(); // stations
65			NodeList nodes = rootNode.getChildNodes();
66
67			Side9Data side9Data = new Side9Data();
68
69			for (int i=0; i<nodes.getLength(); i++) {
70			Node currentNode = nodes.item(i);
71
72			String name = currentNode.getNodeName();
73			String content = null;
74
75			if (currentNode.getFirstChild() != null)
76			content = currentNode.getFirstChild().getNodeValue(); //get the textNode - then get the text node's value
77
78
79			if (name.equals("imageurl"))
80			side9Data.url = BASEURL + content;
81			if (name.equals("width"))
82			side9Data.width = Integer.parseInt(content);
83			if (name.equals("height"))
84			side9Data.height = Integer.parseInt(content);
85			if (name.equals("caption"))
86			side9Data.caption = content;
87			}
88
89
90
91
92			return side9Data;
93			}
94
95			}
96