1 files changed, 52 insertions, 0 deletions
diff --git a/framework/src/onos/core/net/src/main/java/org/onosproject/net/intent/impl/phase/IntentWorker.java b/framework/src/onos/core/net/src/main/java/org/onosproject/net/intent/impl/phase/IntentWorker.java
new file mode 100644
index 00000000..9ddcf40e
--- /dev/null
+++ b/framework/src/onos/core/net/src/main/java/org/onosproject/net/intent/impl/phase/IntentWorker.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.net.intent.impl.phase;
+
+
+import java.util.Optional;
+import java.util.concurrent.Callable;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Worker to process a submitted intent. {@link #call()} method generates
+ */
+public final class IntentWorker implements Callable<FinalIntentProcessPhase> {
+
+    private final IntentProcessPhase initial;
+
+    /**
+     * Create an instance with the specified arguments.
+     *
+     * @param initial initial intent process phase
+     */
+    public IntentWorker(IntentProcessPhase initial) {
+        this.initial = checkNotNull(initial);
+    }
+
+    @Override
+    public FinalIntentProcessPhase call() throws Exception {
+        IntentProcessPhase update = initial;
+        Optional<IntentProcessPhase> currentPhase = Optional.of(update);
+        IntentProcessPhase previousPhase = update;
+
+        while (currentPhase.isPresent()) {
+            previousPhase = currentPhase.get();
+            currentPhase = previousPhase.execute();
+        }
+        return (FinalIntentProcessPhase) previousPhase;
+    }
+}