Examples with EditionConcurrencyException org.alien4cloud.tosca.editor.exception.EditionConcurrencyException used on opensource projects

Example 1 with EditionConcurrencyException

use of org.alien4cloud.tosca.editor.exception.EditionConcurrencyException in project alien4cloud by alien4cloud.

the class EditorService method checkSynchronization.

/**
 * Ensure that the request is synchronized with the current state of the edition.
 *
 * @param operation, The operation under evaluation.
 */
private synchronized void checkSynchronization(AbstractEditorOperation operation) {
    // there is an operation being processed so just fail (nobody could get the notification)
    if (EditionContextManager.get().getCurrentOperation() != null) {
        throw new EditionConcurrencyException();
    }
    List<AbstractEditorOperation> operations = EditionContextManager.get().getOperations();
    // if someone performed some operations we have to ensure that the new operation is performed on top of a synchronized topology
    if (EditionContextManager.get().getLastOperationIndex() == -1) {
        if (operation.getPreviousOperationId() != null) {
            throw new EditionConcurrencyException();
        }
    } else if (!operations.get(EditionContextManager.get().getLastOperationIndex()).getId().equals(operation.getPreviousOperationId())) {
        throw new EditionConcurrencyException();
    }
    operation.setId(UUID.randomUUID().toString());
    EditionContextManager.get().setCurrentOperation(operation);
}