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

Example 36 with FlowVariable

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

the class FeatureSelectionLoopEndNodeModel method execute.

/**
 * {@inheritDoc}
 */
@Override
protected PortObject[] execute(final PortObject[] inObjects, final ExecutionContext exec) throws Exception {
    final FlowVariable scoreVariable = getAvailableInputFlowVariables().get(m_settings.getScoreVariableName());
    final double score = scoreVariable.getDoubleValue();
    if (m_resultTable == null) {
        m_resultTable = exec.createDataContainer(m_featureSelector.getSpecForResultTable());
        m_featureSelector.setResultTableContainer(m_resultTable);
    }
    m_featureSelector.addScore(score);
    m_iteration++;
    if (m_featureSelector.continueLoop()) {
        continueLoop();
        return null;
    }
    m_resultTable.close();
    return new PortObject[] { m_resultTable.getTable(), m_featureSelector.getFeatureSelectionModel() };
}

Example 37 with FlowVariable

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

the class VirtualSubNodeOutputNodeModel method getVisibleFlowVariables.

/**
 * @return
 */
private Collection<FlowVariable> getVisibleFlowVariables() {
    Map<String, FlowVariable> filter = new LinkedHashMap<>(Node.invokeGetAvailableFlowVariables(this, Type.values()));
    FilterResult result = m_configuration.getFilterConfiguration().applyTo(filter);
    filter.keySet().retainAll(Arrays.asList(result.getIncludes()));
    return filter.values().stream().filter(e -> !e.isGlobalConstant()).collect(Collectors.toList());
}

Example 38 with FlowVariable

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

the class JavaScriptingPanel method onSelectionInVariableList.

private 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 = "$${" + typeChar + v.getName() + "}$$";
        m_expEdit.replaceSelection(enter);
        m_flowVarsList.clearSelection();
        m_expEdit.requestFocus();
    }
}

Example 39 with FlowVariable

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

the class JavaScriptingPanel method saveSettingsTo.

/**
 * Save current settings.
 * @param s To save to.
 * @throws InvalidSettingsException If compilation fails.
 */
public void saveSettingsTo(final JavaScriptingSettings s) throws InvalidSettingsException {
    String newColName = null;
    boolean isReplace = m_replaceRadio.isSelected();
    if (isReplace) {
        if (m_customizer.getOutputIsVariable()) {
            FlowVariable item = (FlowVariable) m_replaceVariableCombo.getSelectedItem();
            newColName = item.getName();
        } else {
            newColName = m_replaceColumnCombo.getSelectedColumn();
        }
    } else {
        newColName = m_newNameField.getText();
    }
    s.setReplace(isReplace);
    s.setColName(newColName);
    String type = m_returnTypeButtonGroup.getSelection().getActionCommand();
    s.setReturnType(type);
    s.setArrayReturn(m_isArrayReturnChecker.isSelected());
    String exp = m_expEdit.getText();
    s.setExpression(exp);
    s.setHeader(m_headerEdit.getText());
    s.setExpressionVersion(m_currentVersion);
    boolean isTestCompilation = m_compileOnCloseChecker.isSelected();
    s.setTestCompilationOnDialogClose(isTestCompilation);
    if (isTestCompilation && m_currentSpec != null) {
        try {
            Expression.compile(s, m_currentSpec);
        } catch (CompilationFailedException cfe) {
            throw new InvalidSettingsException(cfe.getMessage(), cfe);
        }
    }
    s.setInsertMissingAsNull(m_insertMissingAsNullChecker.isSelected());
}

Example 40 with FlowVariable

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

the class JavaSnippet method validateSettings.

/**
 * Validate settings which is typically called in the configure method of a node.
 *
 * What is checked:
 * <ul>
 * <li>Whether converter factories matching the ids from the settings exist</li>
 * <li>Whether the code compiles</li>
 * <li>Whether columns required by input mappings still exist.</li>
 * </ul>
 *
 * @param spec the spec of the data table at the inport
 * @param flowVariableRepository the flow variables at the inport
 * @return the validation results
 */
public ValidationReport validateSettings(final DataTableSpec spec, final FlowVariableRepository flowVariableRepository) {
    List<String> errors = new ArrayList<>();
    List<String> warnings = new ArrayList<>();
    // check input fields
    for (final InCol field : m_fields.getInColFields()) {
        final int index = spec.findColumnIndex(field.getKnimeName());
        if (index < 0) {
            errors.add("The column \"" + field.getKnimeName() + "\" is not found in the input table.");
        } else {
            final DataColumnSpec colSpec = spec.getColumnSpec(index);
            final DataType type = colSpec.getType();
            if (!type.equals(field.getDataType())) {
                // Input column type changed, try to find new converter
                final Optional<?> factory = ConverterUtil.getConverterFactory(type, field.getJavaType());
                if (factory.isPresent()) {
                    warnings.add("The type of the column \"" + field.getKnimeName() + "\" has changed but is compatible.");
                    field.setConverterFactory(type, (DataCellToJavaConverterFactory<?, ?>) factory.get());
                } else {
                    errors.add("The type of the column \"" + field.getKnimeName() + "\" has changed.");
                }
            }
        }
        if (!field.getConverterFactory().isPresent()) {
            errors.add(String.format("Missing converter for column '%s' to java field '%s' (converter id: '%s')", field.getKnimeName(), field.getJavaName(), field.getConverterFactoryId()));
        }
    }
    // check input variables
    for (InVar field : m_fields.getInVarFields()) {
        FlowVariable var = flowVariableRepository.getFlowVariable(field.getKnimeName());
        if (var != null) {
            if (!var.getType().equals(field.getFlowVarType())) {
                errors.add("The type of the flow variable \"" + field.getKnimeName() + "\" has changed.");
            }
        } else {
            errors.add("The flow variable \"" + field.getKnimeName() + "\" is not found in the input.");
        }
    }
    // check output fields
    for (OutCol field : m_fields.getOutColFields()) {
        if (field.getJavaType() == null) {
            errors.add("Java type could not be loaded. Providing plugin may be missing.");
        }
        int index = spec.findColumnIndex(field.getKnimeName());
        if (field.getReplaceExisting() && index < 0) {
            errors.add("The output column \"" + field.getKnimeName() + "\" is marked to be a replacement, " + "but an input with this name does not exist.");
        }
        if (!field.getReplaceExisting() && index > 0) {
            errors.add("The output column \"" + field.getKnimeName() + "\" is marked to be new, " + "but an input with this name does exist.");
        }
        if (!field.getConverterFactory().isPresent()) {
            errors.add(String.format("Missing converter for java field '%s' to column '%s' (converter id: '%s')", field.getJavaName(), field.getKnimeName(), field.getConverterFactoryId()));
        }
    }
    // check output variables
    for (OutVar field : m_fields.getOutVarFields()) {
        FlowVariable var = flowVariableRepository.getFlowVariable(field.getKnimeName());
        if (field.getReplaceExisting() && var == null) {
            errors.add("The output flow variable \"" + field.getKnimeName() + "\" is marked to be a replacement, " + "but an input with this name does not exist.");
        }
        if (!field.getReplaceExisting() && var != null) {
            errors.add("The output flow variable \"" + field.getKnimeName() + "\" is marked to be new, " + "but an input with this name does exist.");
        }
    }
    // Check additional bundles
    for (final String bundleName : m_settings.getBundles()) {
        final Bundle bundle = Platform.getBundle(bundleName);
        if (bundle == null) {
            errors.add("Bundle \"" + bundleName + "\" required by this snippet was not found.");
        } else {
        // TODO Version warning?
        }
    }
    try {
        // test if snippet compiles and if the file can be created
        createSnippetClass();
    } catch (Exception e) {
        errors.add(e.getMessage());
    } finally {
        close();
    }
    return new ValidationReport(errors.toArray(new String[errors.size()]), warnings.toArray(new String[warnings.size()]));
}