Rejuvenate (to some extent) the basic pipeconf

- Use auto-generated BasicConstants
- Implement own pipeliner that maps to table0 (will remove soon
interpreter mapping for index table IDs)

Change-Id: I19fd2091605edc0efbe62134e1ad8e3336089cde
diff --git a/pipelines/basic/src/main/java/org/onosproject/pipelines/basic/BasicPipelinerImpl.java b/pipelines/basic/src/main/java/org/onosproject/pipelines/basic/BasicPipelinerImpl.java
new file mode 100644
index 0000000..9fc532b
--- /dev/null
+++ b/pipelines/basic/src/main/java/org/onosproject/pipelines/basic/BasicPipelinerImpl.java
@@ -0,0 +1,108 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * 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.pipelines.basic;
+
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.behaviour.NextGroup;
+import org.onosproject.net.behaviour.Pipeliner;
+import org.onosproject.net.behaviour.PipelinerContext;
+import org.onosproject.net.driver.AbstractHandlerBehaviour;
+import org.onosproject.net.flow.DefaultFlowRule;
+import org.onosproject.net.flow.FlowRule;
+import org.onosproject.net.flow.FlowRuleService;
+import org.onosproject.net.flowobjective.FilteringObjective;
+import org.onosproject.net.flowobjective.ForwardingObjective;
+import org.onosproject.net.flowobjective.NextObjective;
+import org.onosproject.net.flowobjective.ObjectiveError;
+import org.slf4j.Logger;
+
+import java.util.Collections;
+import java.util.List;
+
+import static org.onosproject.pipelines.basic.BasicConstants.INGRESS_TABLE0_CONTROL_TABLE0;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Pipeliner implementation for basic.p4 that maps all forwarding objectives to
+ * table0. All other types of objectives are not supported.
+ */
+public class BasicPipelinerImpl extends AbstractHandlerBehaviour implements Pipeliner {
+
+    private final Logger log = getLogger(getClass());
+
+    private FlowRuleService flowRuleService;
+    private DeviceId deviceId;
+
+
+    @Override
+    public void init(DeviceId deviceId, PipelinerContext context) {
+        this.deviceId = deviceId;
+        this.flowRuleService = context.directory().get(FlowRuleService.class);
+
+    }
+
+    @Override
+    public void filter(FilteringObjective obj) {
+        obj.context().ifPresent(c -> c.onError(obj, ObjectiveError.UNSUPPORTED));
+    }
+
+    @Override
+    public void forward(ForwardingObjective obj) {
+        if (obj.treatment() == null) {
+            obj.context().ifPresent(c -> c.onError(obj, ObjectiveError.UNSUPPORTED));
+        }
+
+        // Simply create an equivalent FlowRule for table 0.
+        final FlowRule.Builder ruleBuilder = DefaultFlowRule.builder()
+                .forTable(INGRESS_TABLE0_CONTROL_TABLE0)
+                .forDevice(deviceId)
+                .withSelector(obj.selector())
+                .fromApp(obj.appId())
+                .withPriority(obj.priority())
+                .withTreatment(obj.treatment());
+
+        if (obj.permanent()) {
+            ruleBuilder.makePermanent();
+        } else {
+            ruleBuilder.makeTemporary(obj.timeout());
+        }
+
+        switch (obj.op()) {
+            case ADD:
+                flowRuleService.applyFlowRules(ruleBuilder.build());
+                break;
+            case REMOVE:
+                flowRuleService.removeFlowRules(ruleBuilder.build());
+                break;
+            default:
+                log.warn("Unknown operation {}", obj.op());
+        }
+
+        obj.context().ifPresent(c -> c.onSuccess(obj));
+    }
+
+    @Override
+    public void next(NextObjective obj) {
+        obj.context().ifPresent(c -> c.onError(obj, ObjectiveError.UNSUPPORTED));
+    }
+
+    @Override
+    public List<String> getNextMappings(NextGroup nextGroup) {
+        // We do not use nextObjectives or groups.
+        return Collections.emptyList();
+    }
+}