nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

Component with RSS Feed

GOMATHY

Has anybody tried working with a component using RSS Feed,When i tried with the example that was provided in the LiveSite manual i was getting an error when i was previewing the component ,the error was "Can't instantiate the "com.interwoven.livesite.external.XML".Then i found that the object name specified in the Content XML is wrong and no such file was present in that location and i found that the file was preent in different location and i changed the tag value as
"com.interwoven.livesite.external.impl.XML".But then also it is giving the error which i have attached here.
Please Kindly help me in solving this issue.

Thanks in advance
Gomathy

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Comments

tec_iwov

the url connection is timing out. do you require going through a proxy to get to external links?

if so see the following:

http://java.sun.com/j2se/1.5.0/docs/guide/net/proxies.html

AlexC

The XML component is deprecated for 3.0+

Use the
object=com.interwoven.livesite.external.runtime.Web
method=urlGetXml

provide a parameter called 'URL' and it will insert the XML into the result DOM so you can transform it with the component's XSL. Please let me know if you need more assistance.

Here is the code for Web


/******************************************************************************
 * INTERWOVEN, INC. PROPRIETARY AND CONFIDENTIAL
 *
 *
 * Copyright 2004 Interwoven, Inc.  All rights reserved.
 *
 * Use of this product is subject to license terms.  If this product
 * is acquired by the United States Government or any contractor
 * therefor, then the Government's rights in this product and related
 * documentation, which are "commercial computer software" and
 * "commercial computer documentation", respectively, will be only as
 * set forth in such license terms as specified in: (i) for
 * acquisitions by or on behalf of civilian agencies, 48 C.F.R. 12.212
 * of the Federal Acquisition Regulations and its successors; and (ii)
 * for acquisition by or on behalf of units of the Department of
 * Defense ("DoD"), in 48 C.F.R. 227.7202-1 through 227.7202-4 of the
 * DoD F.A.R. Supplement and its successors.  All United States
 * Government end users acquire this product with only those rights
 * set forth in such license terms.
 ******************************************************************************/
package com.interwoven.livesite.external.runtime;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.Iterator;

import org.dom4j.Document;
import org.dom4j.Element;

import com.interwoven.livesite.dom4j.Dom4jUtils;
import com.interwoven.livesite.runtime.RequestContext;



/*****************************************************************************
 * DOCUMENT ME!!!
 *
 * @author $Author: achachan $
 * @version $Revision: 1.6 $
 *****************************************************************************/
public class Web
{
  /** default ctor */
  public Web()
  {
  }

  /** Parameter for getting URL */
  public static final String GETURL = "URL";

  /** Parameter for target element */
  public static final String TARGET_ELEMENT = "targetElement";

  /**
   * ***************************************************************************
   * Fetch URL content at GETURL parameter
   * Requred parameter: URL = URL to fetch
   * Optional parameters: targetElement = element name where the content will be added
   * XPath: /Properties/Data/Result/Response
   * 
   * @param context Request
   * @return Document
   ****************************************************************************
   */
  public Document urlGet(RequestContext context)
  {
    Document doc = Dom4jUtils.newDocument();
    Element root = doc.addElement("Response");

    String urlAddress = (String)context.getParameterString(GETURL);
    String targetElement = (String)context.getParameterString(TARGET_ELEMENT);
    if (null == targetElement)
    {
      targetElement = "data";
    }
    if (null == urlAddress)
    {
      doc.getRootElement().addElement("error").addText("Required parameter not found: "+GETURL);
    }
    else
    {
      try
      {
        URL url = new URL(urlAddress);
        URLConnection conn = url.openConnection();
        String str;

        Iterator it = conn.getHeaderFields().keySet().iterator();
        if (it.hasNext())
        {
          Element eh = root.addElement("request_header");
          StringBuffer sb = new StringBuffer();
          while (it.hasNext())
          {
            String name = (String)it.next();
            if (null != name)
            {
              String value = conn.getHeaderField(name);
              eh.addElement(name).addText(value);
              sb.append(name);
              sb.append("=");
              sb.append(value);
              sb.append("\r\n");
            }
          }
          eh.addElement("_raw").addCDATA(sb.toString());
        }
        str = conn.getContentType();
        if (null != str)
        {
          root.addElement("Content-Type").addText(str);
        }
        str = conn.getContentEncoding();
        if (null != str)
        {
          root.addElement("Content-Encoding").addText(str);
        }

        root.addElement("Content-Length").addText(new Integer(conn.getContentLength()).toString());

        if (0 == conn.getContentType().indexOf("text/xml"))
        {
          //a_XML data inlined
          Document readDoc = Dom4jUtils.newDocument(conn.getInputStream());
          root.add(readDoc.getRootElement());
        }
        else
        {
          //a_Read content and add as CDATA
          BufferedReader rd
            = new BufferedReader(
                new InputStreamReader(
                    conn.getInputStream()
                )
              );
          String line;
          StringBuffer sb = new StringBuffer();
          while (null != (line = rd.readLine()))
          {
            sb.append(line);
            sb.append("\r\n");
          }
          rd.close();

          root.addElement(targetElement).addCDATA(sb.toString());
        }
      }

      catch (Exception e)
      {
        root.addElement("error").addCDATA(e.toString()); 
      }
    }

    return doc;
  }

  /**
   * Download XML from a given URL in parameter GETURL (see member above)
   * 
   * Requred parameter: URL = URL to fetch
   * Optional parameters: targetElement = element name where the content will be added
   *
   * @param context request
   * @return Document XML read from the URL
   */
  public Document urlGetXml(RequestContext context)
  {
    Document doc = Dom4jUtils.newDocument();
    Element root = doc.addElement("Response");

    String urlAddress = (String)context.getParameterString(GETURL);
    String targetElement = (String)context.getParameterString(TARGET_ELEMENT);
    if (null == targetElement)
    {
      targetElement = "data";
    }
    if (null == urlAddress)
    {
      doc.getRootElement().addElement("error").addText("Required parameter not found: "+GETURL);
    }
    else
    {
      try
      {
        URL url = new URL(urlAddress);
        URLConnection conn = url.openConnection();

        if (0 == conn.getContentType().indexOf("text/xml"))
        {
          //a_XML data inlined
          Document readDoc = Dom4jUtils.newDocument(conn.getInputStream());
          root.add(readDoc.getRootElement());
        }
        else
        {
          //a_Non-XML data add as CDATA and error
          BufferedReader rd
            = new BufferedReader(
                new InputStreamReader(
                    conn.getInputStream()
                )
              );
          String line;
          StringBuffer sb = new StringBuffer();
          while (null != (line = rd.readLine()))
          {
            sb.append(line);
            sb.append("\r\n");
          }
          rd.close();

          root.addElement("error").addText("Content-Type is not text/xml.");          
          root.addElement("data").addCDATA(sb.toString());
        }
      }

      catch (Exception e)
      {
        root.addElement("error").addCDATA(e.toString()); 
      }
    }

    return doc;
  }
}
/******************************************************************************
 * INTERWOVEN, INC. PROPRIETARY AND CONFIDENTIAL
 *
 *
 * Copyright 2004 Interwoven, Inc.  All rights reserved.
 *
 * Use of this product is subject to license terms.  If this product
 * is acquired by the United States Government or any contractor
 * therefor, then the Government's rights in this product and related
 * documentation, which are "commercial computer software" and
 * "commercial computer documentation", respectively, will be only as
 * set forth in such license terms as specified in: (i) for
 * acquisitions by or on behalf of civilian agencies, 48 C.F.R. 12.212
 * of the Federal Acquisition Regulations and its successors; and (ii)
 * for acquisition by or on behalf of units of the Department of
 * Defense ("DoD"), in 48 C.F.R. 227.7202-1 through 227.7202-4 of the
 * DoD F.A.R. Supplement and its successors.  All United States
 * Government end users acquire this product with only those rights
 * set forth in such license terms.
 ******************************************************************************/
package com.interwoven.livesite.external.runtime;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.Iterator;

import org.dom4j.Document;
import org.dom4j.Element;

import com.interwoven.livesite.dom4j.Dom4jUtils;
import com.interwoven.livesite.runtime.RequestContext;



/*****************************************************************************
 * DOCUMENT ME!!!
 *
 * @author $Author: achachan $
 * @version $Revision: 1.6 $
 *****************************************************************************/
public class Web
{
  /** default ctor */
  public Web()
  {
  }

  /** Parameter for getting URL */
  public static final String GETURL = "URL";

  /** Parameter for target element */
  public static final String TARGET_ELEMENT = "targetElement";

  /**
   * ***************************************************************************
   * Fetch URL content at GETURL parameter
   * Requred parameter: URL = URL to fetch
   * Optional parameters: targetElement = element name where the content will be added
   * XPath: /Properties/Data/Result/Response
   * 
   * @param context Request
   * @return Document
   ****************************************************************************
   */
  public Document urlGet(RequestContext context)
  {
    Document doc = Dom4jUtils.newDocument();
    Element root = doc.addElement("Response");

    String urlAddress = (String)context.getParameterString(GETURL);
    String targetElement = (String)context.getParameterString(TARGET_ELEMENT);
    if (null == targetElement)
    {
      targetElement = "data";
    }
    if (null == urlAddress)
    {
      doc.getRootElement().addElement("error").addText("Required parameter not found: "+GETURL);
    }
    else
    {
      try
      {
        URL url = new URL(urlAddress);
        URLConnection conn = url.openConnection();
        String str;

        Iterator it = conn.getHeaderFields().keySet().iterator();
        if (it.hasNext())
        {
          Element eh = root.addElement("request_header");
          StringBuffer sb = new StringBuffer();
          while (it.hasNext())
          {
            String name = (String)it.next();
            if (null != name)
            {
              String value = conn.getHeaderField(name);
              eh.addElement(name).addText(value);
              sb.append(name);
              sb.append("=");
              sb.append(value);
              sb.append("\r\n");
            }
          }
          eh.addElement("_raw").addCDATA(sb.toString());
        }
        str = conn.getContentType();
        if (null != str)
        {
          root.addElement("Content-Type").addText(str);
        }
        str = conn.getContentEncoding();
        if (null != str)
        {
          root.addElement("Content-Encoding").addText(str);
        }

        root.addElement("Content-Length").addText(new Integer(conn.getContentLength()).toString());

        if (0 == conn.getContentType().indexOf("text/xml"))
        {
          //a_XML data inlined
          Document readDoc = Dom4jUtils.newDocument(conn.getInputStream());
          root.add(readDoc.getRootElement());
        }
        else
        {
          //a_Read content and add as CDATA
          BufferedReader rd
            = new BufferedReader(
                new InputStreamReader(
                    conn.getInputStream()
                )
              );
          String line;
          StringBuffer sb = new StringBuffer();
          while (null != (line = rd.readLine()))
          {
            sb.append(line);
            sb.append("\r\n");
          }
          rd.close();

          root.addElement(targetElement).addCDATA(sb.toString());
        }
      }

      catch (Exception e)
      {
        root.addElement("error").addCDATA(e.toString()); 
      }
    }

    return doc;
  }

  /**
   * Download XML from a given URL in parameter GETURL (see member above)
   * 
   * Requred parameter: URL = URL to fetch
   * Optional parameters: targetElement = element name where the content will be added
   *
   * @param context request
   * @return Document XML read from the URL
   */
  public Document urlGetXml(RequestContext context)
  {
    Document doc = Dom4jUtils.newDocument();
    Element root = doc.addElement("Response");

    String urlAddress = (String)context.getParameterString(GETURL);
    String targetElement = (String)context.getParameterString(TARGET_ELEMENT);
    if (null == targetElement)
    {
      targetElement = "data";
    }
    if (null == urlAddress)
    {
      doc.getRootElement().addElement("error").addText("Required parameter not found: "+GETURL);
    }
    else
    {
      try
      {
        URL url = new URL(urlAddress);
        URLConnection conn = url.openConnection();

        if (0 == conn.getContentType().indexOf("text/xml"))
        {
          //a_XML data inlined
          Document readDoc = Dom4jUtils.newDocument(conn.getInputStream());
          root.add(readDoc.getRootElement());
        }
        else
        {
          //a_Non-XML data add as CDATA and error
          BufferedReader rd
            = new BufferedReader(
                new InputStreamReader(
                    conn.getInputStream()
                )
              );
          String line;
          StringBuffer sb = new StringBuffer();
          while (null != (line = rd.readLine()))
          {
            sb.append(line);
            sb.append("\r\n");
          }
          rd.close();

          root.addElement("error").addText("Content-Type is not text/xml.");          
          root.addElement("data").addCDATA(sb.toString());
        }
      }

      catch (Exception e)
      {
        root.addElement("error").addCDATA(e.toString()); 
      }
    }

    return doc;
  }
}

achachan@interwoven.com

GOMATHY

Yes i require Proxy to go through external links.
As you said to use different class and the method i searched for the class in the livesite.jar but i could not find out the class"com.interwoven.livesite.external.runtime.web". So suggest me any solution to resolve this issue.

Thanks
Gomathy

tec_iwov

What version of Livesite are you using?

follow the link i posted to set the proxy configuration.

the xml is deprecated in 3.0 but it will still be present.

you can copy the code alex posted and add it to your customer toolkit
if you are using 3.0

GOMATHY

Iam working on LiveSite ver 2.0.
I don't know what xml version it supports.
The url you specified regardin the proxy is wrong and no such page is available.
I think error occurs as the url i specified does not exist or might be iam not possible to establish the connection with the server.
I tried using a class RSS where they are reading a xml and performing further but then it also didn't workout.
So could you suggest me what could i do for the issue.

Thanks
Gomathy

tec_iwov

I've attached to document for proxy setup.
(not sure why you can't get to the link...)

yes if the url is bad or unable to connect to it then you'll get the time out exception. this is standard behavior.