1 files changed, 127 insertions, 0 deletions
diff --git a/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/BasePacket.java b/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/BasePacket.java
new file mode 100644
index 00000000..4aece66f
--- /dev/null
+++ b/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/BasePacket.java
@@ -0,0 +1,127 @@
+/*
+ * Copyright 2014 Open Networking Laboratory
+ *
+ * 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.onlab.packet;
+
+/**
+ *
+ *
+ */
+public abstract class BasePacket implements IPacket {
+    protected IPacket parent;
+    protected IPacket payload;
+
+    /**
+     * @return the parent
+     */
+    @Override
+    public IPacket getParent() {
+        return this.parent;
+    }
+
+    /**
+     * @param parent
+     *            the parent to set
+     */
+    @Override
+    public IPacket setParent(final IPacket parent) {
+        this.parent = parent;
+        return this;
+    }
+
+    /**
+     * @return the payload
+     */
+    @Override
+    public IPacket getPayload() {
+        return this.payload;
+    }
+
+    /**
+     * @param payload
+     *            the payload to set
+     */
+    @Override
+    public IPacket setPayload(final IPacket payload) {
+        this.payload = payload;
+        return this;
+    }
+
+    @Override
+    public void resetChecksum() {
+        if (this.parent != null) {
+            this.parent.resetChecksum();
+        }
+    }
+
+    /*
+     * (non-Javadoc)
+     *
+     * @see java.lang.Object#hashCode()
+     */
+    @Override
+    public int hashCode() {
+        final int prime = 6733;
+        int result = 1;
+        result = prime * result
+                + (this.payload == null ? 0 : this.payload.hashCode());
+        return result;
+    }
+
+    /*
+     * (non-Javadoc)
+     *
+     * @see java.lang.Object#equals(java.lang.Object)
+     */
+    @Override
+    public boolean equals(final Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null) {
+            return false;
+        }
+        if (!(obj instanceof BasePacket)) {
+            return false;
+        }
+        final BasePacket other = (BasePacket) obj;
+        if (this.payload == null) {
+            if (other.payload != null) {
+                return false;
+            }
+        } else if (!this.payload.equals(other.payload)) {
+            return false;
+        }
+        return true;
+    }
+
+    @Override
+    public Object clone() {
+        IPacket pkt;
+        try {
+            pkt = this.getClass().newInstance();
+        } catch (final Exception e) {
+            throw new RuntimeException("Could not clone packet");
+        }
+
+        final byte[] data = this.serialize();
+        pkt.deserialize(this.serialize(), 0, data.length);
+        pkt.setParent(this.parent);
+        return pkt;
+    }
+}