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

Example 1 with MetaNodeToSubNodeResult

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

the class TestCollapseAndWrapMetaNodeActions method testCollapseIntoMetaNodeThenWrapUnwrap.

/**
 * Collect nodes, collapse them, convert to meta node and wrap/unwrap.
 */
@Test
public void testCollapseIntoMetaNodeThenWrapUnwrap() throws Exception {
    WorkflowManager mgr = getManager();
    executeAllAndWait();
    checkState(mgr, EXECUTED);
    mgr.resetAndConfigureAll();
    // there is only one in the wfm
    WorkflowAnnotation annotation = mgr.getWorkflowAnnotations().stream().findFirst().get();
    final NodeID[] nodes = new NodeID[] { m_columnFilter_2, m_columnFilter_3, m_columnSplitter_4 };
    CollapseIntoMetaNodeResult collapseResult = mgr.collapseIntoMetaNode(nodes, new WorkflowAnnotation[] { annotation }, "Test-Meta/Wrap Node");
    WorkflowManager metaNode = mgr.getNodeContainer(collapseResult.getCollapsedMetanodeID(), WorkflowManager.class, true);
    NodeID metaSubID = metaNode.getID();
    assertFalse("Should have removed node: " + m_columnFilter_2, mgr.containsNodeContainer(m_columnFilter_2));
    assertTrue("No annotation expected", mgr.getWorkflowAnnotations().isEmpty());
    mgr.getNodeContainer(metaSubID, WorkflowManager.class, true);
    executeAllAndWait();
    checkState(mgr, EXECUTED);
    mgr.resetAndConfigureNode(metaSubID);
    MetaNodeToSubNodeResult convertObject = mgr.convertMetaNodeToSubNode(metaSubID);
    mgr.getNodeContainer(metaSubID, SubNodeContainer.class, true);
    executeAllAndWait();
    checkState(mgr, EXECUTED);
    mgr.resetAndConfigureNode(metaSubID);
    assertTrue("Should be undo-able", convertObject.canUndo());
    convertObject.undo();
    mgr.getNodeContainer(metaSubID, WorkflowManager.class, true);
    executeAllAndWait();
    checkState(mgr, EXECUTED);
    mgr.resetAndConfigureNode(metaSubID);
    convertObject = mgr.convertMetaNodeToSubNode(metaSubID);
    // no flow var ports at '0' for meta nodes
    mgr.addConnection(m_javaEdit_7, 1, metaSubID, 0);
    // no flow var ports at '0' for meta nodes
    mgr.addConnection(metaSubID, 0, m_tableView_6, 0);
    assertEquals("wrong number inputs", 3, mgr.getIncomingConnectionsFor(metaSubID).size());
    assertEquals("wrong number outputs", 3, mgr.getOutgoingConnectionsFor(metaSubID).size());
    executeAllAndWait();
    checkState(mgr, EXECUTED);
    mgr.resetAndConfigureNode(metaSubID);
    SubNodeToMetaNodeResult convertSubNodeToMetaNodeResult = mgr.convertSubNodeToMetaNode(metaSubID);
    mgr.getNodeContainer(metaSubID, WorkflowManager.class, true);
    assertEquals("wrong number inputs", 2, mgr.getIncomingConnectionsFor(metaSubID).size());
    assertEquals("wrong number outputs", 2, mgr.getOutgoingConnectionsFor(metaSubID).size());
    executeAllAndWait();
    checkState(mgr, EXECUTED);
    convertSubNodeToMetaNodeResult.undo();
    mgr.getNodeContainer(metaSubID, SubNodeContainer.class, true);
    executeAllAndWait();
    checkState(mgr, EXECUTED);
}