Initial code drop of netconf protocol implementation

[controller.git] / opendaylight / netconf / netconf-mapping-api / src / main / java / org / opendaylight / controller / netconf / mapping / api / HandlingPriority.java

diff --git a/opendaylight/netconf/netconf-mapping-api/src/main/java/org/opendaylight/controller/netconf/mapping/api/HandlingPriority.java b/opendaylight/netconf/netconf-mapping-api/src/main/java/org/opendaylight/controller/netconf/mapping/api/HandlingPriority.java
new file mode 100644 (file)
index 0000000..5a0688c
--- /dev/null
+++ b/opendaylight/netconf/netconf-mapping-api/src/main/java/org/opendaylight/controller/netconf/mapping/api/HandlingPriority.java
@@ -0,0 +1,79 @@
+/*
+ * 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.netconf.mapping.api;
+
+import com.google.common.base.Optional;
+
+public class HandlingPriority implements Comparable<HandlingPriority> {
+
+    public static final HandlingPriority CANNOT_HANDLE = new HandlingPriority();
+    public static final HandlingPriority HANDLE_WITH_DEFAULT_PRIORITY = new HandlingPriority(Integer.MIN_VALUE);
+    public static final HandlingPriority HANDLE_WITH_MAX_PRIORITY = new HandlingPriority(Integer.MAX_VALUE);
+
+    private Integer priority;
+
+    public static HandlingPriority getHandlingPriority(int priority) {
+        return new HandlingPriority(priority);
+    }
+
+    private HandlingPriority(int priority) {
+        this.priority = priority;
+    }
+
+    private HandlingPriority() {
+    }
+
+    /**
+     * @return priority number or Optional.absent otherwise
+     */
+    public Optional<Integer> getPriority() {
+        return Optional.of(priority).or(Optional.<Integer> absent());
+    }
+
+    // TODO test
+
+    @Override
+    public int compareTo(HandlingPriority o) {
+        if (this == o)
+            return 0;
+        if (this == CANNOT_HANDLE)
+            return -1;
+        if (o == CANNOT_HANDLE)
+            return 1;
+
+        if (priority > o.priority)
+            return 1;
+        if (priority == o.priority)
+            return 0;
+        if (priority < o.priority)
+            return -1;
+
+        throw new IllegalStateException("Unexpected state");
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o)
+            return true;
+        if (!(o instanceof HandlingPriority))
+            return false;
+
+        HandlingPriority that = (HandlingPriority) o;
+
+        if (priority != null ? !priority.equals(that.priority) : that.priority != null)
+            return false;
+
+        return true;
+    }
+
+    @Override
+    public int hashCode() {
+        return priority != null ? priority.hashCode() : 0;
+    }
+}