/**
* 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.command;
import java.util.concurrent.atomic.AtomicReference;
/**
* @openwire:marshaller code="110"
*
*/
public class MessageId implements DataStructure, Comparable<MessageId> {
public static final byte DATA_STRUCTURE_TYPE = CommandTypes.MESSAGE_ID;
protected String textView;
protected ProducerId producerId;
protected long producerSequenceId;
protected long brokerSequenceId;
private transient String key;
private transient int hashCode;
private transient AtomicReference<Object> dataLocator = new AtomicReference<Object>();
private transient Object entryLocator;
private transient Object plistLocator;
private transient Object futureOrSequenceLong;
public MessageId() {
this.producerId = new ProducerId();
}
public MessageId(ProducerInfo producerInfo, long producerSequenceId) {
this.producerId = producerInfo.getProducerId();
this.producerSequenceId = producerSequenceId;
}
public MessageId(String messageKey) {
setValue(messageKey);
}
public MessageId(String producerId, long producerSequenceId) {
this(new ProducerId(producerId), producerSequenceId);
}
public MessageId(ProducerId producerId, long producerSequenceId) {
this.producerId = producerId;
this.producerSequenceId = producerSequenceId;
}
/**
* Sets the value as a String
*/
public void setValue(String messageKey) {
key = messageKey;
// Parse off the sequenceId
int p = messageKey.lastIndexOf(":");
if (p >= 0) {
producerSequenceId = Long.parseLong(messageKey.substring(p + 1));
messageKey = messageKey.substring(0, p);
} else {
throw new NumberFormatException();
}
producerId = new ProducerId(messageKey);
}
/**
* Sets the transient text view of the message which will be ignored if the message is marshaled on a transport; so
* is only for in-JVM changes to accommodate foreign JMS message IDs
*/
public void setTextView(String key) {
this.textView = key;
}
/**
* @openwire:property version=10
* @return
*/
public String getTextView() {
return textView;
}
@Override
public byte getDataStructureType() {
return DATA_STRUCTURE_TYPE;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || o.getClass() != getClass()) {
return false;
}
MessageId id = (MessageId) o;
return producerSequenceId == id.producerSequenceId && producerId.equals(id.producerId);
}
@Override
public int hashCode() {
if (hashCode == 0) {
hashCode = producerId.hashCode() ^ (int) producerSequenceId;
}
return hashCode;
}
public String toProducerKey() {
if (textView == null) {
return toString();
} else {
return producerId.toString() + ":" + producerSequenceId;
}
}
@Override
public String toString() {
if (key == null) {
if (textView != null) {
if (textView.startsWith("ID:")) {
key = textView;
} else {
key = "ID:" + textView;
}
} else {
key = producerId.toString() + ":" + producerSequenceId;
}
}
return key;
}
/**
* @openwire:property version=1 cache=true
*/
public ProducerId getProducerId() {
return producerId;
}
public void setProducerId(ProducerId producerId) {
this.producerId = producerId;
}
/**
* @openwire:property version=1
*/
public long getProducerSequenceId() {
return producerSequenceId;
}
public void setProducerSequenceId(long producerSequenceId) {
this.producerSequenceId = producerSequenceId;
}
/**
* @openwire:property version=1
*/
public long getBrokerSequenceId() {
return brokerSequenceId;
}
public void setBrokerSequenceId(long brokerSequenceId) {
this.brokerSequenceId = brokerSequenceId;
}
@Override
public boolean isMarshallAware() {
return false;
}
public MessageId copy() {
MessageId copy = new MessageId(producerId, producerSequenceId);
copy.key = key;
copy.brokerSequenceId = brokerSequenceId;
copy.dataLocator = dataLocator;
copy.entryLocator = entryLocator;
copy.futureOrSequenceLong = futureOrSequenceLong;
copy.plistLocator = plistLocator;
copy.textView = textView;
return copy;
}
/**
* @param
* @return
* @see java.lang.Comparable#compareTo(java.lang.Object)
*/
@Override
public int compareTo(MessageId other) {
int result = -1;
if (other != null) {
result = this.toString().compareTo(other.toString());
}
return result;
}
/**
* @return a locator which aids a message store in loading a message faster. Only used by the message stores.
*/
public Object getDataLocator() {
return dataLocator.get();
}
/**
* Sets a locator which aids a message store in loading a message faster. Only used by the message stores.
*/
public void setDataLocator(Object value) {
this.dataLocator.set(value);
}
public Object getFutureOrSequenceLong() {
return futureOrSequenceLong;
}
public void setFutureOrSequenceLong(Object futureOrSequenceLong) {
this.futureOrSequenceLong = futureOrSequenceLong;
}
public Object getEntryLocator() {
return entryLocator;
}
public void setEntryLocator(Object entryLocator) {
this.entryLocator = entryLocator;
}
public Object getPlistLocator() {
return plistLocator;
}
public void setPlistLocator(Object plistLocator) {
this.plistLocator = plistLocator;
}
private Object readResolve() {
dataLocator = new AtomicReference<Object>();
return this;
}
}