diff --git a/apps/optical/src/main/java/org/onlab/onos/optical/cfg/WdmLink.java b/apps/optical/src/main/java/org/onlab/onos/optical/cfg/WdmLink.java
new file mode 100644
index 0000000..5e7b468
--- /dev/null
+++ b/apps/optical/src/main/java/org/onlab/onos/optical/cfg/WdmLink.java
@@ -0,0 +1,121 @@
+package org.onlab.onos.optical.cfg;
+
+/**
+ * WDM Link Java data object converted from a JSON file.
+ */
+class WdmLink {
+    private String srcNodeName;
+    private String snkNodeName;
+    private String srcNodeId;
+    private String snkNodeId;
+    private int srcPort;
+    private int snkPort;
+    private double distance;
+    private double cost;
+    private int wavelengthNumber;
+    private long adminWeight;
+
+    public WdmLink(String name1, String name2) {
+        this.srcNodeName = name1;
+        this.snkNodeName = name2;
+    }
+
+    public WdmLink() {
+        // TODO Auto-generated constructor stub
+    }
+
+    public void setSrcNodeName(String name) {
+        this.srcNodeName = name;
+    }
+
+    public String getSrcNodeName() {
+        return this.srcNodeName;
+    }
+
+    public void setSnkNodeName(String name) {
+        this.snkNodeName = name;
+    }
+
+    public String getSnkNodeName() {
+        return this.snkNodeName;
+    }
+
+    public void setSrcNodeId(String nodeId) {
+        this.srcNodeId = nodeId;
+    }
+
+    public String getSrcNodeId() {
+        return this.srcNodeId;
+    }
+
+    public void setSnkNodeId(String nodeId) {
+        this.snkNodeId = nodeId;
+    }
+
+    public String getSnkNodeId() {
+        return this.snkNodeId;
+    }
+
+    public void setSrcPort(int port) {
+        this.srcPort = port;
+    }
+
+    public int getSrcPort() {
+        return this.srcPort;
+    }
+
+    public void setSnkPort(int port) {
+        this.snkPort = port;
+    }
+
+    public int getSnkPort() {
+        return this.snkPort;
+    }
+
+    public void setDistance(double x) {
+        this.distance = x;
+    }
+
+    public double getDistance() {
+        return this.distance;
+    }
+
+    public void setCost(double x) {
+        this.cost = x;
+    }
+
+    public double getCost() {
+        return this.cost;
+    }
+
+    public void setWavelengthNumber(int x) {
+        this.wavelengthNumber = x;
+    }
+
+    public int getWavelengthNumber() {
+        return this.wavelengthNumber;
+    }
+
+    public void setAdminWeight(long x) {
+        this.adminWeight = x;
+    }
+
+    public long getAdminWeight() {
+        return this.adminWeight;
+    }
+
+    @Override
+    public String toString() {
+        return new StringBuilder(" srcNodeName: ").append(this.srcNodeName)
+                .append(" snkNodeName: ").append(this.snkNodeName)
+                .append(" srcNodeId: ").append(this.srcNodeId)
+                .append(" snkNodeId: ").append(this.snkNodeId)
+                .append(" srcPort: ").append(this.srcPort)
+                .append(" snkPort: ").append(this.snkPort)
+                .append(" distance: ").append(this.distance)
+                .append(" cost: ").append(this.cost)
+                .append(" wavelengthNumber: ").append(this.wavelengthNumber)
+                .append(" adminWeight: ").append(this.adminWeight).toString();
+    }
+}
+