/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.activemq.artemis.core.protocol.core.impl.wireformat;
import java.util.Arrays;
import org.apache.activemq.artemis.api.core.ActiveMQBuffer;
import org.apache.activemq.artemis.core.protocol.core.impl.PacketImpl;
import org.apache.activemq.artemis.utils.DataConstants;
public abstract class SessionContinuationMessage extends PacketImpl {
public static final int SESSION_CONTINUATION_BASE_SIZE = PACKET_HEADERS_SIZE + DataConstants.SIZE_INT +
DataConstants.SIZE_BOOLEAN;
protected byte[] body;
protected boolean continues;
public SessionContinuationMessage(final byte type, final byte[] body, final boolean continues) {
super(type);
this.body = body;
this.continues = continues;
}
public SessionContinuationMessage(final byte type) {
super(type);
}
// Public --------------------------------------------------------
/**
* @return the body
*/
public byte[] getBody() {
if (size <= 0) {
return new byte[0];
} else {
return body;
}
}
/**
* @return the continues
*/
public boolean isContinues() {
return continues;
}
/**
* Returns the exact expected encoded size of {@code this} packet.
* It will be used to allocate the proper encoding buffer in {@link #createPacket}, hence any
* wrong value will result in a thrown exception or a resize of the encoding
* buffer during the encoding process, depending to the implementation of {@link #createPacket}.
* Any child of {@code this} class are required to override this method if their encoded size is changed
* from the base class.
*
* @return the size in bytes of the expected encoded packet
*/
@Override
public int expectedEncodeSize() {
return SESSION_CONTINUATION_BASE_SIZE + (body == null ? 0 : body.length);
}
@Override
public void encodeRest(final ActiveMQBuffer buffer) {
buffer.writeInt(body.length);
buffer.writeBytes(body);
buffer.writeBoolean(continues);
}
@Override
public void decodeRest(final ActiveMQBuffer buffer) {
int size = buffer.readInt();
body = new byte[size];
buffer.readBytes(body);
continues = buffer.readBoolean();
}
@Override
public int hashCode() {
final int prime = 31;
int result = super.hashCode();
result = prime * result + Arrays.hashCode(body);
result = prime * result + (continues ? 1231 : 1237);
return result;
}
@Override
public String toString() {
StringBuffer buff = new StringBuffer(getParentString());
buff.append(", body=" + Arrays.toString(body));
buff.append(", continues=" + continues);
buff.append("]");
return buff.toString();
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (!super.equals(obj))
return false;
if (!(obj instanceof SessionContinuationMessage))
return false;
SessionContinuationMessage other = (SessionContinuationMessage) obj;
if (!Arrays.equals(body, other.body))
return false;
if (continues != other.continues)
return false;
return true;
}
}