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118 lines
3.4 KiB
Java
118 lines
3.4 KiB
Java
package com.thinkit.lewebconnect;
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import java.io.IOException;
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import java.io.StringReader;
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import java.io.UnsupportedEncodingException;
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import java.net.MalformedURLException;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.parsers.ParserConfigurationException;
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import org.apache.http.HttpEntity;
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import org.apache.http.HttpResponse;
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import org.apache.http.client.methods.HttpGet;
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import org.apache.http.client.methods.HttpPost;
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import org.apache.http.impl.client.DefaultHttpClient;
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import org.apache.http.util.EntityUtils;
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import org.w3c.dom.Document;
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import org.w3c.dom.Element;
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import org.w3c.dom.Node;
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import org.w3c.dom.NodeList;
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import org.xml.sax.InputSource;
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import org.xml.sax.SAXException;
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import android.util.Log;
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public class XMLfunctions {
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public final static Document XMLfromString(String xml){
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Document doc = null;
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DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
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try {
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DocumentBuilder db = dbf.newDocumentBuilder();
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InputSource is = new InputSource();
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is.setCharacterStream(new StringReader(xml));
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doc = db.parse(is);
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} catch (ParserConfigurationException e) {
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System.out.println("XML parse error: " + e.getMessage());
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return null;
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} catch (SAXException e) {
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System.out.println("Wrong XML file structure: " + e.getMessage());
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return null;
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} catch (IOException e) {
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System.out.println("I/O exeption: " + e.getMessage());
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return null;
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}
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return doc;
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}
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/** Returns element value
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* @param elem element (it is XML tag)
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* @return Element value otherwise empty String
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*/
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public final static String getElementValue( Node elem ) {
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Node kid;
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if( elem != null){
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if (elem.hasChildNodes()){
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for( kid = elem.getFirstChild(); kid != null; kid = kid.getNextSibling() ){
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if( kid.getNodeType() == Node.TEXT_NODE ){
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return kid.getNodeValue();
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}
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}
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}
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}
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return "";
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}
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public static String getXML(){
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String line = null;
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try {
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DefaultHttpClient httpClient = new DefaultHttpClient();
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HttpGet get = new HttpGet(WebService.XML_DB_URL);
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HttpResponse httpResponse = httpClient.execute(get);
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HttpEntity httpEntity = httpResponse.getEntity();
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line = EntityUtils.toString(httpEntity);
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} catch (UnsupportedEncodingException e) {
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line = "<results status=\"error\"><msg>Can't connect to server</msg></results>";
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} catch (MalformedURLException e) {
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line = "<results status=\"error\"><msg>Can't connect to server</msg></results>";
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} catch (IOException e) {
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line = "<results status=\"error\"><msg>Can't connect to server</msg></results>";
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}
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return line;
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}
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public static int numResults(Document doc){
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NodeList results;
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try {
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results = doc.getElementsByTagName("user");
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//Log.d("XMLFunctions", results.toString());
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return results.getLength();
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} catch (Exception e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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return 0;
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}
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public static String getValue(Element item, String str) {
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NodeList n = item.getElementsByTagName(str);
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return XMLfunctions.getElementValue(n.item(0));
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}
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}
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