TextLinkAds | The Leader in Text Link Search Engine Optimization

Java Server Pages Installation Instructions

Signup and Site Submission Required to fully install plugin.
Copy or download the code below and paste it into the appropriate pages on http://www.yourdomain.com
Please make sure that all ads are ONLY displaying on the EXACT approved page(s) and not site wide (or multiple pages).
Version 1.0.2

Ad Code

<%@ page import="java.net.*"%>
<%@ page import="java.io.*"%>
<%@ page import="javax.xml.parsers.DocumentBuilderFactory"%>
<%@ page import="javax.xml.parsers.ParserConfigurationException"%>
<%@ page import="org.xml.sax.SAXException"%>
<%@ page import="org.w3c.dom.*"%>
<%@ page import="java.util.*"%>
<%!
    // The following code was graciously provided by Armond Avanes (http://www.armondavanes.com)

    private String tla_ads( HttpServletRequest request, HttpServletResponse response ) throws IOException, ParserConfigurationException, SAXException
    {
        // Number of seconds before connection to XML times out
        // (This can be left the way it is)
        int CONNECTION_TIMEOUT = 10;

        // Local file to store XML
        // This file MUST be writable by web server
        // You should create a blank file and CHMOD it to 666
        String LOCAL_XML_FILENAME = "local_81838.xml";
        String INVENTORY_KEY = "XXXXXXJOINtextlinkadsFORKEYXXXXXX";

        File localXmlFile = new File( getServletConfig().getServletContext().getRealPath(LOCAL_XML_FILENAME ) );

        if( !localXmlFile.exists() ) {
            FileWriter fw = new FileWriter(getServletConfig().getServletContext().getRealPath(LOCAL_XML_FILENAME));
            fw.write("");
            fw.close();
        }
        
        if( !localXmlFile.exists() ) {
            return( "Script error: " + localXmlFile.getName() + " does not exist. Please create a blank file named " + localXmlFile.getName() + "." );
        }

        if( !localXmlFile.canWrite() ) {
            return( "Script error: " + localXmlFile.getName() + " is not writable. Please set write permissions on " + localXmlFile.getName() + "." );
        }

        if( localXmlFile.lastModified()<(new Date().getTime() - 3600*1000) || localXmlFile.length()<20 ) {
            URL url = new URL("http://www.text-link-ads.com/xml.php?k=" + INVENTORY_KEY + "&l=jsp-tla-1.0.2");

            tla_updateLocalXML(url, localXmlFile, CONNECTION_TIMEOUT);
        }

        Map[] arr_xml = tla_decodeXML(localXmlFile);
        StringBuffer sb = new StringBuffer();

        if( arr_xml!=null && arr_xml.length>0 ) {
            sb.append( "\n<ul>\n" );
            for( int i=0; i<arr_xml.length; i++ ) {
                Map map = arr_xml[i];

                sb.append( "<li>" );
                sb.append( map.get("BeforeText") );
                sb.append( " <a href=\"" + map.get("URL") + "\">" + map.get("Text") + "</a> " );
                sb.append( map.get("AfterText") + "</li>\n" );
            }
            sb.append("</ul>");
        }

    return sb.toString();
    }

    private void tla_updateLocalXML(URL url, File file, int time_out) throws IOException
    {
        file.setLastModified( new Date().getTime() );

        String xml = file_get_contents_tla(url, time_out);

        if( xml!=null && !xml.trim().equals("") ) {
            FileWriter fw = new FileWriter(file);

            fw.write( xml );
            fw.close();
        }
    }

    private String file_get_contents_tla(URL url, int time_out) throws IOException
    {
        URLConnection urlConnection = url.openConnection();

        //urlConnection.setConnectTimeout( time_out * 1000 );
        //urlConnection.setReadTimeout( time_out * 1000 );

        InputStream is = urlConnection.getInputStream();
        StringBuffer content = new StringBuffer();
        int ch;

        while( (ch=is.read())!=-1 )
            content.append( (char)ch );

        is.close();
        return content.toString();
    }

    private Map[] tla_decodeXML(File file) throws ParserConfigurationException, IOException, SAXException
    {
        Document dom = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse( file );
        Node linksRoot = dom.getFirstChild();
        NodeList links = linksRoot.getChildNodes();
        List result = new ArrayList();

        for( int i=0; i<links.getLength(); i++ )
        {
            Node link = links.item(i);

            if( link.getNodeType()==Node.TEXT_NODE )
                continue;

            NodeList linkAttributes = link.getChildNodes();
            Map map = new HashMap();

            for( int j=0; j<linkAttributes.getLength(); j++ )
            {
                Node linkAttr = linkAttributes.item(j);
                Text textNode = (Text)linkAttr.getFirstChild();
                String value = ( textNode!=null ) ? textNode.getNodeValue().trim() : "";

                map.put( linkAttr.getNodeName(), value );
            }
            result.add(map);
        }

        return (Map[])result.toArray( new Map[0] );
    }
%>
<%= tla_ads(request, response) %>