ONOS-1048 - Define interfaces instead of using IntentManager
- Define IntentProcessor interface containing methods to process an intent
- Pull out IntentCompiler related tasks to CompilerRegistry
- Pull out IntentInstaller related tasks to InstallerRegistry
- Create an IntentProcessor subclass as inner class in IntentManager
Change-Id: Ia3e8d574a1053e7ddc9b961873ef758c9e0b1b26
diff --git a/core/net/src/main/java/org/onosproject/net/intent/impl/IntentProcessor.java b/core/net/src/main/java/org/onosproject/net/intent/impl/IntentProcessor.java
new file mode 100644
index 0000000..c613a8d
--- /dev/null
+++ b/core/net/src/main/java/org/onosproject/net/intent/impl/IntentProcessor.java
@@ -0,0 +1,68 @@
+/*
+ * 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;
+
+import org.onosproject.net.flow.FlowRuleOperations;
+import org.onosproject.net.intent.Intent;
+import org.onosproject.net.intent.IntentData;
+
+import java.util.List;
+
+/**
+ * A collection of methods to process an intent.
+ *
+ * This interface is public, but intended to be used only by IntentManager and
+ * IntentProcessPhase subclasses stored under phase package.
+ */
+public interface IntentProcessor {
+
+ /**
+ * Compiles an intent recursively.
+ *
+ * @param intent intent
+ * @param previousInstallables previous intent installables
+ * @return result of compilation
+ */
+ List<Intent> compile(Intent intent, List<Intent> previousInstallables);
+
+ /**
+ * Generate a {@link FlowRuleOperations} instance from the specified intent data.
+ *
+ * @param current intent data stored in the store
+ * @param pending intent data being processed
+ * @return flow rule operations
+ */
+ FlowRuleOperations coordinate(IntentData current, IntentData pending);
+
+ /**
+ * Generate a {@link FlowRuleOperations} instance from the specified intent data.
+ *
+ * @param current intent data stored in the store
+ * @param pending intent data being processed
+ * @return flow rule operations
+ */
+ FlowRuleOperations uninstallCoordinate(IntentData current, IntentData pending);
+
+ /**
+ * Applies a batch operation of FlowRules.
+ *
+ * @param flowRules batch operation to apply
+ */
+ // TODO: consider a better name
+ // This methods gives strangeness a bit because
+ // it doesn't receive/return intent related information
+ void applyFlowRules(FlowRuleOperations flowRules);
+}