Enhanced DeviceDescription and added default implementation for it.
diff --git a/net/api/src/main/java/org/onlab/onos/net/device/DefaultDeviceDescription.java b/net/api/src/main/java/org/onlab/onos/net/device/DefaultDeviceDescription.java
new file mode 100644
index 0000000..3d340b2
--- /dev/null
+++ b/net/api/src/main/java/org/onlab/onos/net/device/DefaultDeviceDescription.java
@@ -0,0 +1,80 @@
+package org.onlab.onos.net.device;
+
+import java.net.URI;
+
+import static com.google.common.base.Objects.toStringHelper;
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onlab.onos.net.Device.Type;
+
+/**
+ * Default implementation of immutable device description entity.
+ */
+public class DefaultDeviceDescription implements DeviceDescription {
+ private final URI uri;
+ private final Type type;
+ private final String manufacturer;
+ private final String hwVersion;
+ private final String swVersion;
+ private final String serialNumber;
+
+ /**
+ * Creates a device description using the supplied information.
+ *
+ * @param uri device URI
+ * @param type device type
+ * @param manufacturer device manufacturer
+ * @param hwVersion device HW version
+ * @param swVersion device SW version
+ * @param serialNumber device serial number
+ */
+ public DefaultDeviceDescription(URI uri, Type type, String manufacturer,
+ String hwVersion, String swVersion,
+ String serialNumber) {
+ this.uri = checkNotNull(uri, "Device URI cannot be null");
+ this.type = checkNotNull(type, "Device type cannot be null");
+ this.manufacturer = manufacturer;
+ this.hwVersion = hwVersion;
+ this.swVersion = swVersion;
+ this.serialNumber = serialNumber;
+ }
+
+ @Override
+ public URI deviceURI() {
+ return uri;
+ }
+
+ @Override
+ public Type type() {
+ return type;
+ }
+
+ @Override
+ public String manufacturer() {
+ return manufacturer;
+ }
+
+ @Override
+ public String hwVersion() {
+ return hwVersion;
+ }
+
+ @Override
+ public String swVersion() {
+ return swVersion;
+ }
+
+ @Override
+ public String serialNumber() {
+ return serialNumber;
+ }
+
+ @Override
+ public String toString() {
+ return toStringHelper(this)
+ .add("uri", uri).add("type", type).add("mfr", manufacturer)
+ .add("hw", hwVersion).add("sw", swVersion)
+ .add("serial", serialNumber)
+ .toString();
+ }
+
+}