private static void addActivities(
Set<TransitionTarget> visited,
List<TransitionTarget> targets,
IActivity activity,
TransitionOptions options,
boolean forward,
Stack<TransitionStep> steps) {
ModelElementList<ITransition> transitions =
forward ? activity.getOutTransitions() : activity.getInTransitions();
JoinSplitType jsType = forward ? activity.getSplitType() : activity.getJoinType();
if (JoinSplitType.And == jsType && transitions.size() > 1) {
IActivity target =
consume(
activity,
asList(transitions),
CollectionUtils.<ITransition>newHashSet(),
forward,
options.areLoopsAllowed());
if (target != null) {
addActivity(visited, targets, target, options, forward, steps);
}
} else {
for (ITransition transition : transitions) {
IActivity target = forward ? transition.getToActivity() : transition.getFromActivity();
jsType = forward ? target.getJoinType() : target.getSplitType();
if (JoinSplitType.And != jsType) {
addActivity(visited, targets, target, options, forward, steps);
}
}
}
}
private static void addActivity(
Set<TransitionTarget> visited,
List<TransitionTarget> targets,
IActivity target,
TransitionOptions options,
boolean forward,
Stack<TransitionStep> steps) {
TransitionTarget candidate =
TransitionTargetFactory.createTransitionTarget(target, steps, forward);
if (!visited.add(candidate)) {
// target already visited, stop processing
return;
}
if (target.getBooleanAttribute(PredefinedConstants.ACTIVITY_IS_RELOCATE_TARGET_ATT)) {
// found a relocation target, check filters
String processIdPattern = options.getProcessIdPattern();
if (processIdPattern == null
|| target.getProcessDefinition().getId().matches(processIdPattern)) {
String activityIdPattern = options.getActivityIdPattern();
if (activityIdPattern == null || target.getId().matches(activityIdPattern)) {
targets.add(candidate);
}
}
}
if (options.isTransitionIntoSubprocessesAllowed()
&& target.getImplementationType() == ImplementationType.SubProcess
&& target.getSubProcessMode() != SubProcessModeKey.ASYNC_SEPARATE) {
IProcessDefinition process = target.getImplementationProcessDefinition();
if (process != null) {
steps.push(TransitionTargetFactory.createTransitionStep(target));
addActivities(visited, targets, process, options, forward, steps);
steps.pop();
}
}
addActivities(visited, targets, target, options, forward, steps);
}
private static void addActivities(
Set<TransitionTarget> visited,
List<TransitionTarget> targets,
IActivityInstance ai,
TransitionOptions options,
boolean forward,
Stack<TransitionStep> steps) {
if (ai != null) {
steps.push(TransitionTargetFactory.createTransitionStep(ai));
// add activities from current process definition
addActivities(visited, targets, ai.getActivity(), options, forward, steps);
// step up into the calling process - starting activity cannot be a relocation target
if (options.isTransitionOutOfSubprocessesAllowed()) {
addActivities(
visited,
targets,
ai.getProcessInstance().getStartingActivityInstance(),
options,
forward,
steps);
}
steps.pop();
}
}
private Request obtainRequest(
Target<TranscodeType> target,
BaseRequestOptions<?> requestOptions,
RequestCoordinator requestCoordinator,
TransitionOptions<?, ? super TranscodeType> transitionOptions,
Priority priority,
int overrideWidth,
int overrideHeight) {
requestOptions.lock();
return SingleRequest.obtain(
context,
model,
transcodeClass,
requestOptions,
overrideWidth,
overrideHeight,
priority,
target,
requestListener,
requestCoordinator,
context.getEngine(),
transitionOptions.getTransitionFactory());
}
private Request buildRequestRecursive(
Target<TranscodeType> target,
@Nullable ThumbnailRequestCoordinator parentCoordinator,
TransitionOptions<?, ? super TranscodeType> transitionOptions,
Priority priority,
int overrideWidth,
int overrideHeight) {
if (thumbnailBuilder != null) {
// Recursive case: contains a potentially recursive thumbnail request builder.
if (isThumbnailBuilt) {
throw new IllegalStateException(
"You cannot use a request as both the main request and a "
+ "thumbnail, consider using clone() on the request(s) passed to thumbnail()");
}
TransitionOptions<?, ? super TranscodeType> thumbTransitionOptions =
thumbnailBuilder.transitionOptions;
if (DEFAULT_ANIMATION_OPTIONS.equals(thumbTransitionOptions)) {
thumbTransitionOptions = transitionOptions;
}
Priority thumbPriority =
thumbnailBuilder.requestOptions.isPrioritySet()
? thumbnailBuilder.requestOptions.getPriority()
: getThumbnailPriority(priority);
int thumbOverrideWidth = thumbnailBuilder.requestOptions.getOverrideWidth();
int thumbOverrideHeight = thumbnailBuilder.requestOptions.getOverrideHeight();
if (Util.isValidDimensions(overrideWidth, overrideHeight)
&& !thumbnailBuilder.requestOptions.isValidOverride()) {
thumbOverrideWidth = requestOptions.getOverrideWidth();
thumbOverrideHeight = requestOptions.getOverrideHeight();
}
ThumbnailRequestCoordinator coordinator = new ThumbnailRequestCoordinator(parentCoordinator);
Request fullRequest =
obtainRequest(
target,
requestOptions,
coordinator,
transitionOptions,
priority,
overrideWidth,
overrideHeight);
isThumbnailBuilt = true;
// Recursively generate thumbnail requests.
Request thumbRequest =
thumbnailBuilder.buildRequestRecursive(
target,
coordinator,
thumbTransitionOptions,
thumbPriority,
thumbOverrideWidth,
thumbOverrideHeight);
isThumbnailBuilt = false;
coordinator.setRequests(fullRequest, thumbRequest);
return coordinator;
} else if (thumbSizeMultiplier != null) {
// Base case: thumbnail multiplier generates a thumbnail request, but cannot recurse.
ThumbnailRequestCoordinator coordinator = new ThumbnailRequestCoordinator(parentCoordinator);
Request fullRequest =
obtainRequest(
target,
requestOptions,
coordinator,
transitionOptions,
priority,
overrideWidth,
overrideHeight);
BaseRequestOptions<?> thumbnailOptions =
requestOptions.clone().sizeMultiplier(thumbSizeMultiplier);
Request thumbnailRequest =
obtainRequest(
target,
thumbnailOptions,
coordinator,
transitionOptions,
getThumbnailPriority(priority),
overrideWidth,
overrideHeight);
coordinator.setRequests(fullRequest, thumbnailRequest);
return coordinator;
} else {
// Base case: no thumbnail.
return obtainRequest(
target,
requestOptions,
parentCoordinator,
transitionOptions,
priority,
overrideWidth,
overrideHeight);
}
}