253 lines
8.1 KiB
Java
253 lines
8.1 KiB
Java
/**
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*
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*/
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package org.gcube.portlets.user.dataminermanager.client.experimentArea;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import org.gcube.portlets.user.dataminermanager.client.DataMinerManager;
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import org.gcube.portlets.user.dataminermanager.client.bean.Operator;
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import org.gcube.portlets.user.dataminermanager.client.bean.parameters.ColumnListParameter;
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import org.gcube.portlets.user.dataminermanager.client.bean.parameters.ColumnParameter;
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import org.gcube.portlets.user.dataminermanager.client.bean.parameters.Parameter;
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import org.gcube.portlets.user.dataminermanager.client.form.AbstractFld;
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import org.gcube.portlets.user.dataminermanager.client.form.OperatorFieldWidget;
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import org.gcube.portlets.user.dataminermanager.client.form.TabularFld;
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import org.gcube.portlets.user.dataminermanager.client.rpc.DataMinerPortletServiceAsync;
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import org.gcube.portlets.user.dataminermanager.client.util.UtilsGXT3;
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import com.google.gwt.core.client.GWT;
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import com.google.gwt.dom.client.Style.Unit;
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import com.google.gwt.i18n.client.DateTimeFormat;
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import com.google.gwt.i18n.client.DateTimeFormat.PredefinedFormat;
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import com.google.gwt.resources.client.ImageResource;
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import com.google.gwt.user.client.rpc.AsyncCallback;
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import com.google.gwt.user.client.ui.HTML;
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import com.google.gwt.user.client.ui.Image;
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import com.sencha.gxt.widget.core.client.button.TextButton;
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import com.sencha.gxt.widget.core.client.container.HorizontalLayoutContainer;
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import com.sencha.gxt.widget.core.client.container.SimpleContainer;
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import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer;
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import com.sencha.gxt.widget.core.client.event.SelectEvent;
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import com.sencha.gxt.widget.core.client.event.SelectEvent.SelectHandler;
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import com.sencha.gxt.widget.core.client.form.FieldLabel;
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import com.sencha.gxt.widget.core.client.form.FieldSet;
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import com.sencha.gxt.widget.core.client.form.FormPanel;
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import com.sencha.gxt.widget.core.client.form.TextField;
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/**
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* @author ceras
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*
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*/
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public class WorkflowOperatorPanel extends SimpleContainer {
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/**
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* @author ceras
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*
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*/
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public interface WorkflowOperatorPanelHandler {
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public void startComputation(String computationTitle, String computationDescription);
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}
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private static final String START_BUTTON_TOOLTIP = "Start Computation";
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private static final ImageResource PRELOAD_IMAGE = DataMinerManager.resources.loaderBig();
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private VerticalLayoutContainer v;
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private Operator operator;
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private FormPanel parametersPanel;
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private FieldSet parametersFieldSet;
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private Map<String, OperatorFieldWidget> fieldWidgetsMap = new HashMap<String, OperatorFieldWidget>();
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//private Map<Parameter, String> parameterValues = new HashMap<Parameter, String>();
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private WorkflowOperatorPanelHandler handler=null;
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private TextField titleField;
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private String defaultComputationTitle;
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public WorkflowOperatorPanel(DataMinerPortletServiceAsync service, Operator operator, WorkflowOperatorPanelHandler handler) {
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this(operator);
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this.setHandler(handler);
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}
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/**
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*
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*/
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public WorkflowOperatorPanel(Operator operator) {
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super();
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v=new VerticalLayoutContainer();
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add(v);
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this.operator = operator;
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this.defaultComputationTitle = getDefaultComputationTitle();
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//lc.setLayout(new FitLayout());
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addStyleName("workflow");
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Image img = new Image(GWT.getModuleBaseURL()+"../images/operators/"+(operator.hasImage() ? operator.getId() : "DEFAULT_IMAGE")+".png");
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img.addStyleName("workflow-icon");
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v.add(img);
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HTML title = new HTML(operator.getName());
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title.addStyleName("workflow-title");
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v.add(title);
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String descr = operator.getDescription();
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descr = (descr==null || descr.contentEquals("")) ? "no-description" : operator.getDescription();
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HTML description = new HTML(descr);
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description.addStyleName("workflow-description");
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v.add(description);
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addTitleField();
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parametersPanel = new FormPanel(){
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@Override
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public boolean isValid(boolean preventMark) {
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boolean flag = super.isValid(preventMark);
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if (flag) {
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for (Map.Entry<String, OperatorFieldWidget> entry : fieldWidgetsMap.entrySet()) {
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OperatorFieldWidget fieldWidget = entry.getValue();
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flag = flag && fieldWidget.isValid();
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}
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}
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return flag;
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}
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};
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parametersPanel.setBorders(false);
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//parametersPanel.getElement().getStyle().setMargin(20, px);
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parametersFieldSet = new FieldSet();
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parametersFieldSet.setHeadingText("Parameters");
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parametersPanel.add(parametersFieldSet);
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v.add(parametersPanel);
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loadOperatorParameters();
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}
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/**
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*
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*/
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private void addTitleField() {
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HorizontalLayoutContainer hp = new HorizontalLayoutContainer();
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hp.add(new HTML("<div style='margin-left:30px; margin-right:10px; margin-top:5px'>Computation Title: </div>"));
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titleField = new TextField();
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titleField.setWidth(250);
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titleField.setValue(this.defaultComputationTitle);
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FieldLabel titleLabel=new FieldLabel(titleField,"Computation Title");
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hp.add(titleLabel);
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v.add(hp);
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}
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/**
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* @param parametersPanel
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*/
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private void loadOperatorParameters() {
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DataMinerManager.getService().getParameters(operator, new AsyncCallback<List<Parameter>>() {
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@Override
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public void onSuccess(List<Parameter> result) {
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operator.setOperatorParameters(result);
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parametersFieldSet.clear();
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showForm();
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}
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@Override
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public void onFailure(Throwable caught) {
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UtilsGXT3.alert("Error ", "Impossible to retrieve parameters.");
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}
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});
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Image img = new Image(PRELOAD_IMAGE);
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img.setStyleName("workflow-parameters-preload");
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parametersFieldSet.add(img);
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}
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/**
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*
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*/
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protected void showForm() {
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// field widgets creation
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for (Parameter p : operator.getOperatorParameters()) {
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OperatorFieldWidget fieldWidget = new OperatorFieldWidget(p);
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fieldWidgetsMap.put(p.getName(), fieldWidget);
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parametersFieldSet.add(fieldWidget);
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}
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for (Parameter p: operator.getOperatorParameters()) {
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if (p.isColumn() || p.isColumnList()) {
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// search for the table parameter which it depends
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String tabParamName = (p.isColumn()
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? ((ColumnParameter)p).getReferredTabularParameterName()
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: ((ColumnListParameter)p).getReferredTabularParameterName());
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try {
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// get the column field and the tabular field referred
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TabularFld tabularField = (TabularFld)fieldWidgetsMap.get(tabParamName).getField();
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AbstractFld field = fieldWidgetsMap.get(p.getName()).getField();
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tabularField.addChangeListener(field);
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} catch (Exception e) {
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e.printStackTrace();
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UtilsGXT3.alert("Error", "Column parameter \""+p.getName()+" refers to a tabular parameter that doesn't exists ("+tabParamName+")\"", null);
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}
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}
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}
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final TextButton submit = new TextButton("Start Computation");
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submit.setToolTip(START_BUTTON_TOOLTIP);
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submit.setIcon(DataMinerManager.resources.startComputation());
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submit.getElement().getStyle().setMarginLeft(20,Unit.PX);
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submit.getElement().getStyle().setMarginBottom(20, Unit.PX);
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submit.addSelectHandler(new SelectHandler() {
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@Override
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public void onSelect(SelectEvent event) {
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if (handler!=null && parametersPanel.isValid()) {
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String value = titleField.getValue();
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String title = (value==null || value.contentEquals("")) ? defaultComputationTitle : value;
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handler.startComputation(title, title); // TODO insert description
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}
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}
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});
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v.add(submit);
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forceLayout();
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parametersPanel.forceLayout();
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}
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public void updateOperatorParametersValues() {
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for (Map.Entry<String, OperatorFieldWidget> entry : fieldWidgetsMap.entrySet()) {
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OperatorFieldWidget fieldWidget = entry.getValue();
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fieldWidget.updateOperatorParameterValue();
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}
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}
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/**
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* @return the operator
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*/
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public Operator getOperator() {
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return operator;
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}
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public void setHandler(WorkflowOperatorPanelHandler handler) {
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this.handler = handler;
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}
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public String getDefaultComputationTitle() {
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String name = this.operator.getName();
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//String date = DateTimeFormat.getShortDateTimeFormat().format(new Date());
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String date = DateTimeFormat.getFormat(PredefinedFormat.DATE_TIME_SHORT).format(new Date());
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return name+"-"+date;
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}
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}
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