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- //package org.acmsl.pocs.lambdafor;
-
- import java.util.ArrayList;
- import java.util.Collection;
- import java.util.List;
- import java.util.function.Function;
-
- public class ControlFlowDriver {
-
- private static boolean m__bUsed = false;
-
- public ControlFlowDriver() {
- }
-
- protected static void immutableSetUsed(final boolean used) {
- m__bUsed = used;
- }
-
- protected static void setUsed(final boolean used) {
- immutableSetUsed(used);
- }
-
- public static boolean isUsed() {
- return m__bUsed;
- }
-
- public <C extends Collection<I>, I, R> Collection<R> forloop(final C items,
- final Function<I, R> lambda) {
- setUsed(true);
-
- final List<R> result = new ArrayList<R>(items.size());
-
- final List<I> list = new ArrayList<I>(items);
-
- int position = -1;
-
- while (true) {
- ControlFlowCommand command = waitForCommand();
-
- switch (command) {
- case NEXT:
- position++;
- break;
- case PREVIOUS:
- position++;
- break;
- case RELOAD:
- break;
- default:
- break;
- }
-
- if (position < 0) {
- position = 0;
- } else if (position > list.size() - 1) {
- break;
- }
-
- result.set(position, lambda.apply(list.get(position)));
- }
-
- return result;
- }
-
- protected ControlFlowCommand waitForCommand() {
- try {
- Thread.sleep(1000);
- } catch (final InterruptedException interruptedException) {
- // whatever
- }
-
- return ControlFlowCommand.NEXT;
- }
-
- }
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