How to use

convertPattern

method

in

org.apache.flink.cep.nfa.compiler.NFACompiler$NFAFactoryCompiler

} else {
  stateNameHandler.checkNameUniqueness(currentPattern.getName());
  lastSink = convertPattern(lastSink);

  lastSink = notNext;
} else {
  lastSink = convertPattern(lastSink);

  lastSink = notNext;
} else {
  lastSink = convertPattern(lastSink);

currentPattern = groupPattern.getRawPattern();
lastSink = createMiddleStates(lastSink);
lastSink = convertPattern(lastSink);
if (isOptional) {

currentPattern = groupPattern.getRawPattern();
lastSink = createMiddleStates(lastSink);
lastSink = convertPattern(lastSink);
if (isOptional) {

/**
 * Create the states for the group pattern as a looping one.
 *
 * @param groupPattern the group pattern to create the states for
 * @param sinkState the state that the group pattern being converted should point to
 * @return the first state of the states of the group pattern
 */
private State<T> createLoopingGroupPatternState(
  final GroupPattern<T, ?> groupPattern,
  final State<T> sinkState) {
  final IterativeCondition<T> proceedCondition = getTrueFunction();
  Pattern<T, ?> oldCurrentPattern = currentPattern;
  Pattern<T, ?> oldFollowingPattern = followingPattern;
  GroupPattern<T, ?> oldGroupPattern = currentGroupPattern;
  final State<T> dummyState = createState(currentPattern.getName(), State.StateType.Normal);
  State<T> lastSink = dummyState;
  currentGroupPattern = groupPattern;
  currentPattern = groupPattern.getRawPattern();
  lastSink = createMiddleStates(lastSink);
  lastSink = convertPattern(lastSink);
  lastSink.addProceed(sinkState, proceedCondition);
  dummyState.addProceed(lastSink, proceedCondition);
  currentPattern = oldCurrentPattern;
  followingPattern = oldFollowingPattern;
  currentGroupPattern = oldGroupPattern;
  return lastSink;
}

/**
 * Create the states for the group pattern as a looping one.
 *
 * @param groupPattern the group pattern to create the states for
 * @param sinkState the state that the group pattern being converted should point to
 * @return the first state of the states of the group pattern
 */
private State<T> createLoopingGroupPatternState(
  final GroupPattern<T, ?> groupPattern,
  final State<T> sinkState) {
  final IterativeCondition<T> proceedCondition = getTrueFunction();
  Pattern<T, ?> oldCurrentPattern = currentPattern;
  Pattern<T, ?> oldFollowingPattern = followingPattern;
  GroupPattern<T, ?> oldGroupPattern = currentGroupPattern;
  final State<T> dummyState = createState(currentPattern.getName(), State.StateType.Normal);
  State<T> lastSink = dummyState;
  currentGroupPattern = groupPattern;
  currentPattern = groupPattern.getRawPattern();
  lastSink = createMiddleStates(lastSink);
  lastSink = convertPattern(lastSink);
  lastSink.addProceed(sinkState, proceedCondition);
  dummyState.addProceed(lastSink, proceedCondition);
  currentPattern = oldCurrentPattern;
  followingPattern = oldFollowingPattern;
  currentGroupPattern = oldGroupPattern;
  return lastSink;
}

/**
 * Creates the Start {@link State} of the resulting NFA graph.
 *
 * @param sinkState the state that Start state should point to (always first state of middle states)
 * @return created state
 */
@SuppressWarnings("unchecked")
private State<T> createStartState(State<T> sinkState) {
  stateNameHandler.checkNameUniqueness(currentPattern.getName());
  final State<T> beginningState = convertPattern(sinkState);
  beginningState.makeStart();
  return beginningState;
}

/**
 * Creates the Start {@link State} of the resulting NFA graph.
 *
 * @param sinkState the state that Start state should point to (always first state of middle states)
 * @return created state
 */
@SuppressWarnings("unchecked")
private State<T> createStartState(State<T> sinkState) {
  final State<T> beginningState = convertPattern(sinkState);
  beginningState.makeStart();
  return beginningState;
}

/**
 * Creates the Start {@link State} of the resulting NFA graph.
 *
 * @param sinkState the state that Start state should point to (always first state of middle states)
 * @return created state
 */
@SuppressWarnings("unchecked")
private State<T> createStartState(State<T> sinkState) {
  final State<T> beginningState = convertPattern(sinkState);
  beginningState.makeStart();
  return beginningState;
}

  lastSink = notNext;
} else {
  lastSink = convertPattern(lastSink);

currentPattern = groupPattern.getRawPattern();
lastSink = createMiddleStates(lastSink);
lastSink = convertPattern(lastSink);
if (isOptional) {

/**
 * Create the states for the group pattern as a looping one.
 *
 * @param groupPattern the group pattern to create the states for
 * @param sinkState the state that the group pattern being converted should point to
 * @return the first state of the states of the group pattern
 */
private State<T> createLoopingGroupPatternState(
  final GroupPattern<T, ?> groupPattern,
  final State<T> sinkState) {
  final IterativeCondition<T> proceedCondition = getTrueFunction();
  Pattern<T, ?> oldCurrentPattern = currentPattern;
  Pattern<T, ?> oldFollowingPattern = followingPattern;
  GroupPattern<T, ?> oldGroupPattern = currentGroupPattern;
  final State<T> dummyState = createState(currentPattern.getName(), State.StateType.Normal);
  State<T> lastSink = dummyState;
  currentGroupPattern = groupPattern;
  currentPattern = groupPattern.getRawPattern();
  lastSink = createMiddleStates(lastSink);
  lastSink = convertPattern(lastSink);
  lastSink.addProceed(sinkState, proceedCondition);
  dummyState.addProceed(lastSink, proceedCondition);
  currentPattern = oldCurrentPattern;
  followingPattern = oldFollowingPattern;
  currentGroupPattern = oldGroupPattern;
  return lastSink;
}

/**
 * Creates the Start {@link State} of the resulting NFA graph.
 *
 * @param sinkState the state that Start state should point to (always first state of middle states)
 * @return created state
 */
@SuppressWarnings("unchecked")
private State<T> createStartState(State<T> sinkState) {
  final State<T> beginningState = convertPattern(sinkState);
  beginningState.makeStart();
  return beginningState;
}