diff options
Diffstat (limited to 'framework/src/onos/utils/misc/src/main/java/org/onlab/packet/BasePacket.java')
-rw-r--r-- | framework/src/onos/utils/misc/src/main/java/org/onlab/packet/BasePacket.java | 127 |
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; + } +} |