Move adsal into its own subdirectory.

[controller.git] / opendaylight / adsal / protocol_plugins / openflow / src / main / java / org / opendaylight / controller / protocol_plugin / openflow / internal / PortConverter.java

diff --git a/opendaylight/adsal/protocol_plugins/openflow/src/main/java/org/opendaylight/controller/protocol_plugin/openflow/internal/PortConverter.java b/opendaylight/adsal/protocol_plugins/openflow/src/main/java/org/opendaylight/controller/protocol_plugin/openflow/internal/PortConverter.java
new file mode 100644 (file)
index 0000000..0b605ab
--- /dev/null
+++ b/opendaylight/adsal/protocol_plugins/openflow/src/main/java/org/opendaylight/controller/protocol_plugin/openflow/internal/PortConverter.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.controller.protocol_plugin.openflow.internal;
+
+import org.opendaylight.controller.sal.core.Node;
+import org.opendaylight.controller.sal.core.NodeConnector;
+import org.opendaylight.controller.sal.core.NodeConnector.NodeConnectorIDType;
+import org.opendaylight.controller.sal.utils.NetUtils;
+import org.opendaylight.controller.sal.utils.NodeConnectorCreator;
+import org.openflow.protocol.OFPort;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Abstract class which provides the utilities for converting the Openflow port
+ * number to the equivalent NodeConnector and vice versa
+ *
+ *
+ *
+ */
+public abstract class PortConverter {
+    private static final Logger log = LoggerFactory
+            .getLogger(PortConverter.class);
+    private static final int maxOFPhysicalPort = NetUtils
+            .getUnsignedShort(OFPort.OFPP_MAX.getValue());
+
+    /**
+     * Converts the Openflow port number to the equivalent NodeConnector.
+     */
+    public static NodeConnector toNodeConnector(short ofPort, Node node) {
+        // Restore original OF unsigned 16 bits value for the comparison
+        int unsignedOFPort = NetUtils.getUnsignedShort(ofPort);
+        log.trace("Openflow port number signed: {} unsigned: {}", ofPort,
+                unsignedOFPort);
+        if (unsignedOFPort > maxOFPhysicalPort) {
+            if (ofPort == OFPort.OFPP_LOCAL.getValue()) {
+                return NodeConnectorCreator.createNodeConnector(
+                        NodeConnectorIDType.SWSTACK,
+                        NodeConnector.SPECIALNODECONNECTORID, node);
+            } else if (ofPort == OFPort.OFPP_NORMAL.getValue()) {
+                return NodeConnectorCreator.createNodeConnector(
+                        NodeConnectorIDType.HWPATH,
+                        NodeConnector.SPECIALNODECONNECTORID, node);
+            } else if (ofPort == OFPort.OFPP_CONTROLLER.getValue()) {
+                return NodeConnectorCreator.createNodeConnector(
+                        NodeConnectorIDType.CONTROLLER,
+                        NodeConnector.SPECIALNODECONNECTORID, node);
+            }
+        }
+        return NodeConnectorCreator.createNodeConnector(ofPort, node);
+    }
+
+    /**
+     * Converts the NodeConnector to the equivalent Openflow port number
+     */
+    public static short toOFPort(NodeConnector salPort) {
+        log.trace("SAL Port", salPort);
+        if (salPort.getType().equals(NodeConnectorIDType.SWSTACK)) {
+            return OFPort.OFPP_LOCAL.getValue();
+        } else if (salPort.getType().equals(NodeConnectorIDType.HWPATH)) {
+            return OFPort.OFPP_NORMAL.getValue();
+        } else if (salPort.getType().equals(NodeConnectorIDType.CONTROLLER)) {
+            return OFPort.OFPP_CONTROLLER.getValue();
+        }
+        return (Short) salPort.getID();
+    }
+}