Java TreeElement.populate方法代码示例

import org.javarosa.core.model.instance.TreeElement; //导入方法依赖的package包/类
/**
 * Load a compatible xml instance into FormDef f
 *
 * call before f.initialize()!
 */
public static void loadXmlInstance(FormDef f, Document xmlInst) {
       TreeElement savedRoot = XFormParser.restoreDataModel(xmlInst, null).getRoot();
       TreeElement templateRoot = f.getMainInstance().getRoot().deepCopy(true);

       // weak check for matching forms
       // TODO: should check that namespaces match?
    if (!savedRoot.getName().equals(templateRoot.getName()) || savedRoot.getMult() != 0) {
    	throw new RuntimeException("Saved form instance does not match template form definition");
    }

    // populate the data model
    TreeReference tr = TreeReference.rootRef();
    tr.add(templateRoot.getName(), TreeReference.INDEX_UNBOUND);
    templateRoot.populate(savedRoot, f);

    // populated model to current form
    f.getMainInstance().setRoot(templateRoot);

    // if the new instance is inserted into the formdef before f.initialize() is called, this
    // locale refresh is unnecessary
    //   Localizer loc = f.getLocalizer();
    //   if (loc != null) {
    //       f.localeChanged(loc.getLocale(), loc);
    //	 }
}
 

import org.javarosa.core.model.instance.TreeElement; //导入方法依赖的package包/类
public boolean importData(File instanceFile, FormEntryController fec) {
  publishProgress(Collect.getInstance().getString(R.string.survey_loading_reading_data_message));

  // convert files into a byte array
  byte[] fileBytes = FileUtils.getFileAsBytes(instanceFile);

  // get the root of the saved and template instances
  TreeElement savedRoot = XFormParser.restoreDataModel(fileBytes, null).getRoot();
  TreeElement templateRoot = fec.getModel().getForm().getInstance().getRoot().deepCopy(true);

  // weak check for matching forms
  if (!savedRoot.getName().equals(templateRoot.getName()) || savedRoot.getMult() != 0) {
    Log.e(t, "Saved form instance does not match template form definition");
    return false;
  } else {
    // populate the data model
    TreeReference tr = TreeReference.rootRef();
    tr.add(templateRoot.getName(), TreeReference.INDEX_UNBOUND);

    // Here we set the Collect's implementation of the IAnswerResolver.
    // We set it back to the default after select choices have been populated.
    XFormParser.setAnswerResolver(new ExternalAnswerResolver());
    templateRoot.populate(savedRoot, fec.getModel().getForm());
    XFormParser.setAnswerResolver(new DefaultAnswerResolver());

    // populated model to current form
    fec.getModel().getForm().getInstance().setRoot(templateRoot);

    // fix any language issues
    // :
    // http://bitbucket.org/javarosa/main/issue/5/itext-n-appearing-in-restored-instances
    if (fec.getModel().getLanguages() != null) {
      fec.getModel().getForm()
          .localeChanged(fec.getModel().getLanguage(), fec.getModel().getForm().getLocalizer());
    }

    return true;

  }
}
 

import org.javarosa.core.model.instance.TreeElement; //导入方法依赖的package包/类
public int validateUserAnswersOneAtATime() throws Exception {
    FormDef formDef = XFormUtils.getFormFromInputStream(new ByteArrayInputStream(getFormModel().getBytes("UTF-8")));
    FormEntryModel formEntryModel = new FormEntryModel(formDef);
    FormEntryController formEntryController = new FormEntryController(formEntryModel);
    TreeElement modelRootElement = formEntryController.getModel().getForm().getInstance().getRoot().deepCopy(true);
    TreeElement instanceRootElement = XFormParser.restoreDataModel(getFormInstance().getBytes("UTF-8"), null).getRoot();

    populateDataModel(modelRootElement);
    modelRootElement.populate(instanceRootElement, formEntryController.getModel().getForm());
    populateFormEntryControllerModel(formEntryController, modelRootElement);
    fixLanguageIusses(formEntryController);

    return createFieldSpecsFromXForms(formEntryController);
}