Examples with FlowVariable org.knime.core.node.workflow.FlowVariable used on opensource projects

Example 71 with FlowVariable

use of org.knime.core.node.workflow.FlowVariable in project knime-core by knime.

the class WorkflowVariablesDialog method addWorkflowVariable.

private void addWorkflowVariable() {
    WorkflowVariablesEditDialog dialog = new WorkflowVariablesEditDialog();
    if (dialog.open() == Window.CANCEL) {
        // if the user has canceled the dialog there is nothing left to do
        return;
    }
    FlowVariable var = dialog.getScopeVariable();
    if (var == null) {
        // variables was not created
        return;
    }
    // do not add it do WFM directly -> this is done when closing the dialog
    if (!m_table.add(var)) {
        MessageDialog.openWarning(getShell(), "Variable already exists", " A variable with the same name and type already exists. " + "Edit this one if you want to change the value.");
    } else {
        m_table.getViewer().refresh();
    }
    getShell().forceFocus();
}

Example 72 with FlowVariable

use of org.knime.core.node.workflow.FlowVariable in project knime-core by knime.

the class WorkflowVariablesDialog method createDialogArea.

/**
 * Creates and returns the contents of this dialog with or without edit,
 * add and remove buttons.
 * @param parent the parent composite
 * @param hideButtons true to hide the button bar, false to show it
 * @return the control
 * @since 2.6
 */
public Control createDialogArea(final Composite parent, final boolean hideButtons) {
    m_buttonsHidden = hideButtons;
    parent.getShell().setText("Workflow Variable Administration");
    Composite composite = new Composite(parent, SWT.NONE);
    composite.setLayout(new GridLayout(1, false));
    composite.setLayoutData(new GridData(GridData.FILL_BOTH));
    // composite contains:
    // first row (new composite):
    Composite tableAndBtnsComp = new Composite(composite, SWT.NONE);
    tableAndBtnsComp.setLayoutData(new GridData(GridData.FILL_BOTH));
    tableAndBtnsComp.setLayout(new GridLayout(2, false));
    // first column: table
    Composite tableComp = new Composite(tableAndBtnsComp, SWT.NONE);
    GridData gridData = new GridData(GridData.FILL_BOTH);
    gridData.grabExcessHorizontalSpace = true;
    tableComp.setLayout(new FillLayout());
    tableComp.setLayoutData(gridData);
    m_table = new WorkflowVariableTable(tableComp);
    for (FlowVariable var : m_workflow.getWorkflowVariables()) {
        m_table.add(var);
    }
    m_table.getViewer().refresh();
    m_table.getViewer().addDoubleClickListener(new IDoubleClickListener() {

        /**
         * {@inheritDoc}
         */
        @Override
        public void doubleClick(final DoubleClickEvent event) {
            Table table = m_table.getViewer().getTable();
            int index = table.getSelectionIndex();
            // we only get a double-click event for existing items
            FlowVariable var = m_table.get(index);
            editWorkflowVariable(var, index);
        }
    });
    if (!hideButtons) {
        // second column: 3 buttons
        Composite btnsComp = new Composite(tableAndBtnsComp, SWT.NONE);
        btnsComp.setLayout(new GridLayout(1, false));
        gridData = new GridData();
        gridData.verticalAlignment = GridData.VERTICAL_ALIGN_CENTER;
        btnsComp.setLayoutData(gridData);
        m_addVarBtn = new Button(btnsComp, SWT.PUSH);
        m_addVarBtn.setText("Add");
        m_addVarBtn.addSelectionListener(new SelectionListener() {

            @Override
            public void widgetDefaultSelected(final SelectionEvent arg0) {
                widgetSelected(arg0);
            }

            @Override
            public void widgetSelected(final SelectionEvent arg0) {
                addWorkflowVariable();
            }
        });
        gridData = new GridData();
        gridData.widthHint = 80;
        m_addVarBtn.setLayoutData(gridData);
        m_editVarBtn = new Button(btnsComp, SWT.PUSH);
        m_editVarBtn.setText("Edit");
        m_editVarBtn.setLayoutData(gridData);
        m_editVarBtn.addSelectionListener(new SelectionListener() {

            @Override
            public void widgetDefaultSelected(final SelectionEvent arg0) {
                widgetSelected(arg0);
            }

            @Override
            public void widgetSelected(final SelectionEvent arg0) {
                int selectionIdx = m_table.getViewer().getTable().getSelectionIndex();
                if (selectionIdx < 0) {
                    MessageDialog.openWarning(getShell(), "Empty selection", "Please select the parameter you want to edit.");
                    return;
                }
                FlowVariable selectedVar = m_table.get(selectionIdx);
                editWorkflowVariable(selectedVar, selectionIdx);
            }
        });
        m_removeVarBtn = new Button(btnsComp, SWT.PUSH);
        m_removeVarBtn.setText("Remove");
        m_removeVarBtn.setLayoutData(gridData);
        m_removeVarBtn.addSelectionListener(new SelectionListener() {

            @Override
            public void widgetDefaultSelected(final SelectionEvent arg0) {
                widgetSelected(arg0);
            }

            @Override
            public void widgetSelected(final SelectionEvent arg0) {
                int idx = m_table.getViewer().getTable().getSelectionIndex();
                if (idx < 0) {
                    MessageDialog.openWarning(getShell(), "Empty selection", "Please select the parameter you want to remove.");
                    return;
                }
                FlowVariable selectedParam = (FlowVariable) ((IStructuredSelection) m_table.getViewer().getSelection()).getFirstElement();
                removeWorkflowVariable(selectedParam);
            }
        });
    }
    // second row: the warning label (in case the edit buttons are disabled
    // due to executing workflow...)
    m_warningLabel = new Label(composite, SWT.NONE);
    m_warningLabel.setText("");
    m_warningLabel.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
    m_warningLabel.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
    return composite;
}

Example 73 with FlowVariable

use of org.knime.core.node.workflow.FlowVariable in project knime-core by knime.

the class WorkflowVariablesDialog method hasChanges.

private boolean hasChanges() {
    List<FlowVariable> wfmList = m_workflow.getWorkflowVariables();
    List<FlowVariable> dialogList = m_table.getVariables();
    // different number of elements -> must contain changes
    if (wfmList.size() != dialogList.size()) {
        return true;
    }
    boolean hasChanges = false;
    for (FlowVariable v : dialogList) {
        int idx = wfmList.indexOf(v);
        if (idx >= 0) {
            hasChanges |= hasValueChanged(v, wfmList.get(idx));
        } else {
            // we have some changes
            return true;
        }
    }
    return hasChanges;
}

Example 74 with FlowVariable

use of org.knime.core.node.workflow.FlowVariable in project knime-core by knime.

the class RuleEngineVariable2PortsNodeModel method parseRules.

/**
 * Parses all rules from {@code rulesTable}.
 *
 * @param rulesTable The input rules table.
 * @return a list of parsed rules
 * @throws ParseException if a rule cannot be parsed
 * @throws InvalidSettingsException Missing values in outcomes are not supported.
 */
protected List<Rule> parseRules(final BufferedDataTable rulesTable) throws ParseException, InvalidSettingsException {
    ArrayList<Rule> rules = new ArrayList<Rule>();
    final Map<String, FlowVariable> availableFlowVariables = getAvailableFlowVariables();
    final RuleFactory factory = RuleFactory.getInstance(RuleNodeSettings.VariableRule).cloned();
    factory.disableNaNComparisons();
    final DataTableSpec spec = new DataTableSpec();
    int line = 0;
    for (String s : rules(rulesTable, m_settings, RuleNodeSettings.VariableRule)) {
        ++line;
        try {
            final Rule rule = factory.parse(s, spec, availableFlowVariables);
            if (rule.getCondition().isEnabled()) {
                rules.add(rule);
            }
        } catch (ParseException e) {
            throw Util.addContext(e, s, line);
        }
    }
    return rules;
}

Example 75 with FlowVariable

use of org.knime.core.node.workflow.FlowVariable in project knime-core by knime.

the class JSnippetPanel method onSelectionInVariableList.

/**
 * Method that is being called by listener when an object in the variable list has been selected.
 *
 * @param selected The selected object.
 * @since 3.6
 */
protected void onSelectionInVariableList(final Object selected) {
    if (selected instanceof FlowVariable) {
        FlowVariable v = (FlowVariable) selected;
        String typeChar;
        switch(v.getType()) {
            case DOUBLE:
                typeChar = "D";
                break;
            case INTEGER:
                typeChar = "I";
                break;
            case STRING:
                typeChar = "S";
                break;
            default:
                return;
        }
        String enter = m_completionProvider.escapeFlowVariableName(typeChar + v.getName());
        m_expEdit.replaceSelection(enter);
        m_flowVarsList.clearSelection();
        m_expEdit.requestFocus();
    }
}