From 78edd08f8040efb3fc1064238c336905099e7e60 Mon Sep 17 00:00:00 2001
From: Robert von Burg <eitch@eitchnet.ch>
Date: Wed, 17 May 2017 09:43:31 +0200
Subject: [PATCH] [New] allow to define depth in activity to json

---
 .../model/json/StrolchElementToJsonVisitor.java   | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/li.strolch.model/src/main/java/li/strolch/model/json/StrolchElementToJsonVisitor.java b/li.strolch.model/src/main/java/li/strolch/model/json/StrolchElementToJsonVisitor.java
index 423f9b9f1..2ed5aba87 100644
--- a/li.strolch.model/src/main/java/li/strolch/model/json/StrolchElementToJsonVisitor.java
+++ b/li.strolch.model/src/main/java/li/strolch/model/json/StrolchElementToJsonVisitor.java
@@ -55,6 +55,7 @@ public class StrolchElementToJsonVisitor
 	private boolean withoutElementName;
 	private boolean withVersion;
 	private boolean withoutPolicies;
+	private int activityDepth = Integer.MAX_VALUE;
 
 	public StrolchElementToJsonVisitor() {
 		this.ignoredKeys = new MapOfSets<>();
@@ -92,6 +93,11 @@ public class StrolchElementToJsonVisitor
 		return this;
 	}
 
+	public StrolchElementToJsonVisitor activityDepth(int depth) {
+		this.activityDepth = depth;
+		return this;
+	}
+
 	public StrolchElementToJsonVisitor flat() {
 		this.flat = true;
 		return this;
@@ -186,7 +192,7 @@ public class StrolchElementToJsonVisitor
 
 	protected JsonObject toJson(Activity element) {
 		JsonObject rootJ = new JsonObject();
-		return toJson(element, rootJ);
+		return toJson(element, rootJ, 0);
 	}
 
 	protected JsonObject toJson(Action element) {
@@ -194,7 +200,7 @@ public class StrolchElementToJsonVisitor
 		return toJson(element, rootJ);
 	}
 
-	protected JsonObject toJson(Activity element, JsonObject rootJ) {
+	protected JsonObject toJson(Activity element, JsonObject rootJ, int currentDepth) {
 
 		rootJ.addProperty(Tags.Json.OBJECT_TYPE, Tags.Json.ACTIVITY);
 
@@ -212,6 +218,9 @@ public class StrolchElementToJsonVisitor
 		if (this.activityHook != null)
 			this.activityHook.accept(element, rootJ);
 
+		if (currentDepth >= this.activityDepth)
+			return rootJ;
+
 		Iterator<Entry<String, IActivityElement>> iter = element.elementIterator();
 		if (iter.hasNext()) {
 
@@ -225,7 +234,7 @@ public class StrolchElementToJsonVisitor
 				elementsJ.add(elementJ);
 
 				if (activityElement instanceof Activity) {
-					toJson((Activity) activityElement, elementJ);
+					toJson((Activity) activityElement, elementJ, currentDepth + 1);
 				} else if (activityElement instanceof Action) {
 					toJson((Action) activityElement, elementJ);
 				} else {