ONOS-985: Sample integration test application for group subsystem

Change-Id: I68352f922e5c7a0800fcc4fa839955769bf925a6
diff --git a/apps/grouphandler/src/main/java/org/onosproject/grouphandler/PolicyGroupParams.java b/apps/grouphandler/src/main/java/org/onosproject/grouphandler/PolicyGroupParams.java
new file mode 100644
index 0000000..d2fcffa
--- /dev/null
+++ b/apps/grouphandler/src/main/java/org/onosproject/grouphandler/PolicyGroupParams.java
@@ -0,0 +1,92 @@
+/*
+ * 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.grouphandler;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import java.util.List;
+import java.util.Objects;
+
+import org.onosproject.net.PortNumber;
+
+/**
+ * Representation of parameters used to create policy based groups.
+ */
+public class PolicyGroupParams {
+    private final List<PortNumber> ports;
+    private final List<Integer> labelStack;
+
+    /**
+     * Constructor.
+     *
+     * @param labelStack mpls label stack to be applied on the ports
+     * @param ports ports to be part of the policy group
+     */
+    public PolicyGroupParams(List<Integer> labelStack,
+                             List<PortNumber> ports) {
+        this.ports = checkNotNull(ports);
+        this.labelStack = checkNotNull(labelStack);
+    }
+
+    /**
+     * Returns the ports associated with the policy group params.
+     *
+     * @return list of port numbers
+     */
+    public List<PortNumber> getPorts() {
+        return ports;
+    }
+
+    /**
+     * Returns the label stack associated with the policy group params.
+     *
+     * @return list of integers
+     */
+    public List<Integer> getLabelStack() {
+        return labelStack;
+    }
+
+    @Override
+    public int hashCode() {
+        int result = 17;
+        int combinedHash = 0;
+        for (PortNumber port:ports) {
+            combinedHash = combinedHash + port.hashCode();
+        }
+        combinedHash = combinedHash + Objects.hash(labelStack);
+        result = 31 * result + combinedHash;
+
+        return result;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+
+        if (obj instanceof PolicyGroupParams) {
+            PolicyGroupParams that = (PolicyGroupParams) obj;
+            boolean result = this.labelStack.equals(that.labelStack);
+            result = result &&
+                    this.ports.containsAll(that.ports) &&
+                    that.ports.containsAll(this.ports);
+            return result;
+        }
+
+        return false;
+    }
+}