1 files changed, 73 insertions, 0 deletions
diff --git a/framework/src/onos/core/net/src/main/java/org/onosproject/net/intent/impl/phase/Compiling.java b/framework/src/onos/core/net/src/main/java/org/onosproject/net/intent/impl/phase/Compiling.java
new file mode 100644
index 00000000..5078b5dc
--- /dev/null
+++ b/framework/src/onos/core/net/src/main/java/org/onosproject/net/intent/impl/phase/Compiling.java
@@ -0,0 +1,73 @@
+/*
+ * 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 org.onosproject.net.intent.Intent;
+import org.onosproject.net.intent.IntentData;
+import org.onosproject.net.intent.IntentException;
+import org.onosproject.net.intent.impl.IntentProcessor;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.List;
+import java.util.Optional;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Represents a phase where an intent is being compiled or recompiled.
+ */
+class Compiling implements IntentProcessPhase {
+
+    private static final Logger log = LoggerFactory.getLogger(Compiling.class);
+
+    private final IntentProcessor processor;
+    private final IntentData data;
+    private final Optional<IntentData> stored;
+
+    /**
+     * Creates a intent recompiling phase.
+     *
+     * @param processor intent processor that does work for recompiling
+     * @param data      intent data containing an intent to be recompiled
+     * @param stored    intent data stored in the store
+     */
+    Compiling(IntentProcessor processor, IntentData data, Optional<IntentData> stored) {
+        this.processor = checkNotNull(processor);
+        this.data = checkNotNull(data);
+        this.stored = checkNotNull(stored);
+    }
+
+    @Override
+    public Optional<IntentProcessPhase> execute() {
+        try {
+            List<Intent> compiled = processor.compile(data.intent(),
+                    //TODO consider passing an optional here in the future
+                    stored.isPresent() ? stored.get().installables() : null);
+            data.setInstallables(compiled);
+            return Optional.of(new Installing(processor, data, stored));
+        } catch (IntentException e) {
+            log.debug("Unable to compile intent {} due to: {}", data.intent(), e);
+            if (stored.isPresent() && !stored.get().installables().isEmpty()) {
+                // removing orphaned flows and deallocating resources
+                data.setInstallables(stored.get().installables());
+                return Optional.of(new Withdrawing(processor, data));
+            } else {
+                return Optional.of(new Failed(data));
+            }
+        }
+    }
+}