Android Open Source - iTunesAndroidPreview X M L Parser

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Back to project page iTunesAndroidPreview.

License

The source code is released under:

GNU General Public License

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Java Source Code

package com.besaba.srmu;
//from ww  w . j  av a 2  s.co  m
import java.io.IOException;
import java.io.StringReader;
import java.io.UnsupportedEncodingException;

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

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;

import android.util.Log;

public class XMLParser {

  // constructor
  public XMLParser() {

  }

  /**
   * Getting XML from URL making HTTP request
   * @param url string
   * */
  public String getXmlFromUrl(String url) {
    String xml = null;

    try {
      // defaultHttpClient
      DefaultHttpClient httpClient = new DefaultHttpClient();
      HttpPost httpPost = new HttpPost(url);

      HttpResponse httpResponse = httpClient.execute(httpPost);
      HttpEntity httpEntity = httpResponse.getEntity();
      xml = EntityUtils.toString(httpEntity);

    } catch (UnsupportedEncodingException e) {
      e.printStackTrace();
    } catch (ClientProtocolException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    }
    // return XML
    return xml;
  }
  
  /**
   * Getting XML DOM element
   * @param XML string
   * */
  public Document getDomElement(String xml){
    Document doc = null;
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    try {

      DocumentBuilder db = dbf.newDocumentBuilder();

      InputSource is = new InputSource();
            is.setCharacterStream(new StringReader(xml));
            doc = db.parse(is); 

      } catch (ParserConfigurationException e) {
        Log.e("Error: ", e.getMessage());
        return null;
      } catch (SAXException e) {
        Log.e("Error: ", e.getMessage());
              return null;
      } catch (IOException e) {
        Log.e("Error: ", e.getMessage());
        return null;
      }

          return doc;
  }
  
  /** Getting node value
    * @param elem element
    */
   public final String getElementValue( Node elem ) {
       Node child;
       if( elem != null){
           if (elem.hasChildNodes()){
               for( child = elem.getFirstChild(); child != null; child = child.getNextSibling() ){
                   if( child.getNodeType() == Node.TEXT_NODE  ){
                       return child.getNodeValue();
                   }
               }
           }
       }
       return "";
   }
   
   /**
    * Getting node value
    * @param Element node
    * @param key string
    * */
   public String getValue(Element item, String str) {    
      NodeList n = item.getElementsByTagName(str);    
      return this.getElementValue(n.item(0));
    }
}

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