Android Open Source - Mobisevera S3 Work Type Container

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License

The source code is released under:

Apache License

Java Source Code

package com.digitalfingertip.mobisevera;
/* w  w w .  jav  a2  s  . c om*/
import java.io.StringReader;
import java.util.ArrayList;

import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;

import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;

import android.content.Context;
import android.util.Log;

public class S3WorkTypeContainer {

  private static final String TAG = "Sevedroid";
  private static final S3WorkTypeContainer instance = new S3WorkTypeContainer();
  private static String myXml = null;
  private static XPath xpath = null;
  private static InputSource inputSource = null;

  // The xpath expressions for digging out the valued needed for this class's methods

  private static final String XPATH_WORKTYPE_NAMES = 
      "/s:Envelope/s:Body/x:GetWorkTypesByPhaseGUIDResponse/x:GetWorkTypesByPhaseGUIDResult/a:WorkType/a:Name";

  private static final String XPATH_WORKTYPE_ACTIVE = 
      "/s:Envelope/s:Body/x:GetWorkTypesByPhaseGUIDResponse/x:GetWorkTypesByPhaseGUIDResult/a:WorkType/a:IsActive";
  
  private static final String XPATH_WORKTYPE_GUID = 
      "/s:Envelope/s:Body/x:GetWorkTypesByPhaseGUIDResponse/x:GetWorkTypesByPhaseGUIDResult/a:WorkType/a:GUID";
  
  // protect constructor, force access through getInstance
  private S3WorkTypeContainer() {
    xpath = XPathFactory.newInstance().newXPath();
  }

  public static S3WorkTypeContainer getInstance() {
    XPathFactory xpf = XPathFactory.newInstance();
    xpath = xpf.newXPath();
    return instance;
  }

  public static S3WorkTypeContainer getInstance(final String xmlForWorkTypes) {
    myXml = xmlForWorkTypes;
    xpath = XPathFactory.newInstance().newXPath();
    return instance;
  }

  public void setWorkTypesXML(final String xmlForWorkTypes) {
    myXml = xmlForWorkTypes;
    xpath = XPathFactory.newInstance().newXPath();
  }

  public ArrayList<S3WorkTypeItem> getWorkTypes() {
    NodeList isActiveNodes = null;
    NodeList nameNodes = null;
    NodeList guidNodes = null;
    S3NamespaceContext mnsp = new S3NamespaceContext();
    xpath.setNamespaceContext(mnsp);
    if(xpath == null) {
      Log.e(TAG,"There's something wrong with class, xpath parser is null.");
      return null;
    }
    try {
      inputSource = new InputSource (new StringReader(myXml));
      isActiveNodes = (NodeList)xpath.evaluate(XPATH_WORKTYPE_ACTIVE,inputSource,XPathConstants.NODESET);
      Log.d(TAG,"isLockedNodes match:"+isActiveNodes.getLength()+" items.");
      inputSource = new InputSource(new StringReader(myXml));
      nameNodes = (NodeList)xpath.evaluate(XPATH_WORKTYPE_NAMES,inputSource,XPathConstants.NODESET);
      Log.d(TAG,"nameNodes match:"+nameNodes.getLength()+" items.");
      inputSource = new InputSource(new StringReader(myXml));
      guidNodes = (NodeList)xpath.evaluate(XPATH_WORKTYPE_GUID,inputSource,XPathConstants.NODESET);
      Log.d(TAG,"guidNodes match:"+guidNodes.getLength()+" items.");
    } catch (XPathExpressionException e) {
      Log.e(TAG,"XPathExpression evaluation failed, exception is:",e);
      return null;
    }
    // sanity checks
    int totalItems = isActiveNodes.getLength();
    if(totalItems != nameNodes.getLength()) {
      Log.e(TAG,"Node lists are not of same lenght! (isAcitve & name) lists");
      return null;
    }
    if(totalItems != guidNodes.getLength()) {
      Log.e(TAG,"Node lists are not of same length! (isActive & guid lists)");
      return null;
    }
    ArrayList<S3WorkTypeItem> res = new ArrayList<S3WorkTypeItem>(totalItems);
    for(int i=0; i< totalItems; i++) {
      S3WorkTypeItem workTypeItem = new S3WorkTypeItem();
      Node isActiveNode = isActiveNodes.item(i);
      Node nameNode = nameNodes.item(i);
      Node guidNode = guidNodes.item(i);
      workTypeItem.setIsActive(isActiveNode.getTextContent());
      workTypeItem.setWorkTypeGUID(guidNode.getTextContent());
      workTypeItem.setWorkTypeName(nameNode.getTextContent());
      res.add(workTypeItem);
    }
    return res;

  }
  
  /**
   * Returns a worktype item, which can be used as a first element of the spinner,
   * displaying [select work type].
   * @return
   */
  
  public static S3WorkTypeItem getEmptySelectorElement(Context c) {
    S3WorkTypeItem res = new S3WorkTypeItem();
    res.setWorkTypeName(c.getString(R.string.select_worktype_item_title));
    res.setWorkTypeGUID(null);
    return res;
  }
}

Java Source Code List

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