Add CLI for listing all openstack instance ports

Change-Id: I05c826102a257c9d924397d22c368d35ff0587cf
diff --git a/apps/openstacknetworking/app/src/test/java/org/onosproject/openstacknetworking/codec/InstancePortJsonMatcher.java b/apps/openstacknetworking/app/src/test/java/org/onosproject/openstacknetworking/codec/InstancePortJsonMatcher.java
new file mode 100644
index 0000000..b816339
--- /dev/null
+++ b/apps/openstacknetworking/app/src/test/java/org/onosproject/openstacknetworking/codec/InstancePortJsonMatcher.java
@@ -0,0 +1,117 @@
+/*
+ * 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.openstacknetworking.codec;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import org.hamcrest.Description;
+import org.hamcrest.TypeSafeDiagnosingMatcher;
+import org.onosproject.openstacknetworking.api.InstancePort;
+
+/**
+ * Hamcrest matcher for instance port.
+ */
+public final class InstancePortJsonMatcher extends TypeSafeDiagnosingMatcher<JsonNode> {
+
+    private final InstancePort port;
+    private static final String NETWORK_ID = "networkId";
+    private static final String PORT_ID = "portId";
+    private static final String MAC_ADDRESS = "macAddress";
+    private static final String IP_ADDRESS = "ipAddress";
+    private static final String DEVICE_ID = "deviceId";
+    private static final String PORT_NUMBER = "portNumber";
+    private static final String STATE = "state";
+
+    private InstancePortJsonMatcher(InstancePort port) {
+        this.port = port;
+    }
+
+    @Override
+    protected boolean matchesSafely(JsonNode jsonNode, Description description) {
+
+        // check network ID
+        String jsonNetworkId = jsonNode.get(NETWORK_ID).asText();
+        String networkId = port.networkId();
+        if (!jsonNetworkId.equals(networkId)) {
+            description.appendText("networkId was " + jsonNetworkId);
+            return false;
+        }
+
+        // check port ID
+        String jsonPortId = jsonNode.get(PORT_ID).asText();
+        String portId = port.portId();
+        if (!jsonPortId.equals(portId)) {
+            description.appendText("portId was " + jsonPortId);
+            return false;
+        }
+
+        // check MAC address
+        String jsonMacAddress = jsonNode.get(MAC_ADDRESS).asText();
+        String macAddress = port.macAddress().toString();
+        if (!jsonMacAddress.equals(macAddress)) {
+            description.appendText("macAddress was " + jsonMacAddress);
+            return false;
+        }
+
+        // check IP address
+        String jsonIpAddress = jsonNode.get(IP_ADDRESS).asText();
+        String ipAddress = port.ipAddress().toString();
+        if (!jsonIpAddress.equals(ipAddress)) {
+            description.appendText("ipAddress was " + jsonIpAddress);
+            return false;
+        }
+
+        // check device ID
+        String jsonDeviceId = jsonNode.get(DEVICE_ID).asText();
+        String deviceId = port.deviceId().toString();
+        if (!jsonDeviceId.equals(deviceId)) {
+            description.appendText("deviceId was " + jsonDeviceId);
+            return false;
+        }
+
+        // check port number
+        String jsonPortNumber = jsonNode.get(PORT_NUMBER).asText();
+        String portNumber = port.portNumber().toString();
+        if (!jsonPortNumber.equals(portNumber)) {
+            description.appendText("portNumber was " + jsonPortNumber);
+            return false;
+        }
+
+        // check state
+        String jsonState = jsonNode.get(STATE).asText();
+        String state = port.state().name();
+        if (!jsonState.equals(state)) {
+            description.appendText("state was " + jsonState);
+            return false;
+        }
+
+        return true;
+    }
+
+    @Override
+    public void describeTo(Description description) {
+        description.appendText(port.toString());
+    }
+
+    /**
+     * Factory to allocate an instance port matcher.
+     *
+     * @param port openstack instance port we are looking for
+     * @return matcher
+     */
+    public static InstancePortJsonMatcher matchesInstancePort(InstancePort port) {
+        return new InstancePortJsonMatcher(port);
+    }
+}