1 files changed, 48 insertions, 0 deletions
diff --git a/src/main/java/com/benburwell/planes/sbs/AggregateDataSource.java b/src/main/java/com/benburwell/planes/sbs/AggregateDataSource.java
new file mode 100644
index 0000000..2850404
--- /dev/null
+++ b/src/main/java/com/benburwell/planes/sbs/AggregateDataSource.java
@@ -0,0 +1,48 @@
+package com.benburwell.planes.sbs;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+
+/**
+ * Created by ben on 11/15/16.
+ */
+public class AggregateDataSource implements DataSource {
+    private List<DataListener> subscribers = new ArrayList<>();
+    private boolean isOpen = false;
+    private int nextSourceNumber = 1;
+    private Map<Integer,DataSource> sources = new HashMap<>();
+
+    public int addSource(DataSource source) {
+        int thisSourceNumber = this.nextSourceNumber++;
+        this.sources.put(thisSourceNumber, source);
+        source.subscribe((SBSPacket packet) -> {
+            if (isOpen) {
+                for (DataListener listener : subscribers) {
+                    listener.handleMessage(packet);
+                }
+            }
+        });
+        return thisSourceNumber;
+    }
+
+    public void subscribe(DataListener listener) {
+        this.subscribers.add(listener);
+    }
+
+    public void open() {
+        this.isOpen = true;
+    }
+
+    public void close() {
+        this.isOpen = false;
+    }
+
+    public void closeSource(int sourceNumber) {
+        if (this.sources.containsKey(sourceNumber)) {
+            this.sources.get(sourceNumber).close();
+            this.sources.remove(sourceNumber);
+        }
+    }
+}