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

Example 91 with FlowVariable

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

the class JSnippetFieldsController method getFieldReadStatement.

/**
 * Get a statement to inserted in the document of a java snippet to read
 * the given flow variable.
 * @param v the flow variable to be read
 * @return the statement
 */
@SuppressWarnings("rawtypes")
public String getFieldReadStatement(final FlowVariable v) {
    FieldsTableModel model = (FieldsTableModel) m_inFieldsTable.getTable().getModel();
    int index = -1;
    for (int r = 0; r < model.getRowCount(); r++) {
        Object value = model.getValueAt(r, Column.COLUMN);
        if (value instanceof FlowVariable) {
            FlowVariable foo = (FlowVariable) value;
            if (foo.getName().equals(v.getName())) {
                index = r;
                break;
            }
        }
    }
    if (index >= 0) {
        // return java field name
        return (String) model.getValueAt(index, Column.JAVA_FIELD);
    } else {
        // try to add a row for the flow variable
        boolean success = m_inFieldsTable.addRow(v);
        if (success) {
            TableModel tableModel = m_inFieldsTable.getTable().getModel();
            m_inFieldsTable.firePropertyChange(InFieldsTable.PROP_FIELD_ADDED, tableModel.getRowCount() - 1, tableModel.getRowCount());
            // return java field name
            return (String) model.getValueAt(model.getRowCount() - 1, Column.JAVA_FIELD);
        } else {
            // return generic code
            String name = v.getName();
            FlowVariable.Type type = v.getType();
            Class javaType = TypeProvider.getDefault().getTypeConverter(type).getPreferredJavaType();
            return "getFlowVariable(\"" + name + "\", " + Type.getIdentifierFor(javaType) + ")";
        }
    }
}

Example 92 with FlowVariable

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

the class OutFieldsTable method createAddButtonListener.

/**
 * {@inheritDoc}
 */
@Override
protected ActionListener createAddButtonListener() {
    return new ActionListener() {

        @Override
        public void actionPerformed(final ActionEvent e) {
            DataColumnSpec defaultColTarget = null;
            if (null != m_spec) {
                Set<String> cols = new HashSet<>();
                for (int r = 0; r < m_model.getRowCount(); r++) {
                    Object value = m_model.getValueAt(r, Column.COLUMN);
                    if (value instanceof DataColumnSpec) {
                        cols.add(((DataColumnSpec) value).getName());
                    }
                }
                for (DataColumnSpec colSpec : m_spec) {
                    if (null == defaultColTarget) {
                        defaultColTarget = colSpec;
                    }
                    if (!cols.contains(colSpec.getName())) {
                        // Add a row and fill it
                        boolean rowAdded = addRow(colSpec);
                        if (rowAdded) {
                            firePropertyChange(PROP_FIELD_ADDED, m_model.getRowCount() - 1, m_model.getRowCount());
                        }
                        return;
                    }
                }
            }
            FlowVariable defaultVarTarget = null;
            if (null != m_flowVars) {
                Set<String> flowVars = new HashSet<>();
                for (int r = 0; r < m_model.getRowCount(); r++) {
                    Object value = m_model.getValueAt(r, Column.COLUMN);
                    if (value instanceof FlowVariable) {
                        flowVars.add(((FlowVariable) value).getName());
                    }
                }
                for (FlowVariable flowVar : m_flowVars.values()) {
                    // created.
                    if (FieldsTableUtil.verifyNameOfFlowVariable(flowVar.getName())) {
                        if (null == defaultVarTarget) {
                            defaultVarTarget = flowVar;
                        }
                        if (!flowVars.contains(flowVar.getName())) {
                            // Add a row and fill it
                            boolean rowAdded = addRow(flowVar);
                            if (rowAdded) {
                                firePropertyChange(PROP_FIELD_ADDED, m_model.getRowCount() - 1, m_model.getRowCount());
                            }
                            return;
                        }
                    }
                }
            }
            boolean rowAdded = false;
            if (null != defaultColTarget) {
                rowAdded = addRow(defaultColTarget);
            } else if (null != defaultVarTarget) {
                rowAdded = addRow(defaultVarTarget);
            } else {
                rowAdded = addRow("var", Type.STRING);
            }
            if (rowAdded) {
                firePropertyChange(PROP_FIELD_ADDED, m_model.getRowCount() - 1, m_model.getRowCount());
            }
        }
    };
}

Example 93 with FlowVariable

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

the class OutFieldsTable method getOutVarFields.

/**
 * Get the field definitions representing output flow variables.
 *
 * @return fields representing output flow variables
 */
public OutVarList getOutVarFields() {
    OutVarList outVars = new OutVarList();
    for (int r = 0; r < m_model.getRowCount(); r++) {
        if (!m_model.validateValues(r)) {
            // there are errors in this row
            continue;
        }
        Object fieldTypeValue = getFieldType(r);
        if (null == fieldTypeValue) {
            continue;
        }
        boolean isFlowVar = fieldTypeValue.equals(FieldType.FlowVariable);
        if (isFlowVar) {
            OutVar outVar = new OutVar();
            outVar.setReplaceExisting((Boolean) m_model.getValueAt(r, Column.REPLACE_EXISTING));
            Object colColValue = m_model.getValueAt(r, Column.COLUMN);
            if (colColValue instanceof FlowVariable) {
                FlowVariable flowVar = (FlowVariable) colColValue;
                outVar.setKnimeName(flowVar.getName());
            } else if (colColValue instanceof String) {
                outVar.setKnimeName(colColValue.toString());
            } else {
                continue;
            }
            Object dataTypeValue = m_model.getValueAt(r, Column.DATA_TYPE);
            if (dataTypeValue instanceof Type) {
                Type type = (Type) dataTypeValue;
                outVar.setFlowVarType(type);
            } else {
                continue;
            }
            outVar.setJavaName((String) m_model.getValueAt(r, Column.JAVA_FIELD));
            Object javaTypeObject = m_model.getValueAt(r, Column.JAVA_TYPE);
            if (javaTypeObject instanceof Class) {
                outVar.setJavaType((Class) javaTypeObject);
            } else {
                continue;
            }
            outVars.add(outVar);
        }
    }
    return outVars;
}