ONOS-7080 and ONOS-7070:
	- added support for user-defined signal in add-optical-intent CLI
	- implemented LambdaQuery behavior for restCiena driver
	- added port based filtering of paths in OpticalIntentCompiler

Change-Id: Ibb61cc3722d5b3a52859d5585decf82a50ef5be0
diff --git a/drivers/ciena/src/main/java/org/onosproject/drivers/ciena/CienaWaveServerLambdaQuery.java b/drivers/ciena/src/main/java/org/onosproject/drivers/ciena/CienaWaveServerLambdaQuery.java
new file mode 100644
index 0000000..0698287
--- /dev/null
+++ b/drivers/ciena/src/main/java/org/onosproject/drivers/ciena/CienaWaveServerLambdaQuery.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2017-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.drivers.ciena;
+
+import org.onosproject.net.ChannelSpacing;
+import org.onosproject.net.OchSignal;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.behaviour.LambdaQuery;
+import org.onosproject.net.driver.AbstractHandlerBehaviour;
+
+
+import com.google.common.collect.ImmutableSet;
+
+import java.util.Set;
+import java.util.stream.IntStream;
+
+/**
+ * Ciena WaveServer Lambda query.
+ * 88 50GHz flex grid channels with 12.5 slot width, starting from 0 to 87.
+ */
+public class CienaWaveServerLambdaQuery extends AbstractHandlerBehaviour implements LambdaQuery {
+
+    @Override
+    public Set<OchSignal> queryLambdas(PortNumber port) {
+        //88 channels of 50 GHz with 12.5 GHz slothWidth
+        int slots = (int) (ChannelSpacing.CHL_50GHZ.frequency().asHz() /
+                ChannelSpacing.CHL_12P5GHZ.frequency().asHz());
+        int channels = 88;
+        //total lambdas are equal to: channels * slots
+        return IntStream.rangeClosed(0, channels * slots)
+                .mapToObj(x -> OchSignal.newFlexGridSlot(2 * x))
+                .collect(ImmutableSet.toImmutableSet());
+    }
+
+}
+
+