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Java library for Azure Service Bus
// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
package com.microsoft.azure.servicebus;
import java.io.Serializable;
import java.nio.charset.Charset;
import java.time.Duration;
import java.time.Instant;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
public final class Message implements Serializable, IMessage {
private static final long serialVersionUID = 7849508139219590863L;
private static final Charset DEFAULT_CHAR_SET = Charset.forName("UTF-8");
private static final String DEFAULT_CONTENT_TYPE = null;
private static final MessageBody DEFAULT_CONTENT = Utils.fromBinay(new byte[0]);
private long deliveryCount;
private String messageId;
private Duration timeToLive;
private MessageBody messageBody;
private String contentType;
private String sessionId;
private long sequenceNumber;
private Instant enqueuedTimeUtc;
private Instant scheduledEnqueueTimeUtc;
private Instant lockedUntilUtc;
private Map properties;
private String correlationId;
private String replyToSessionId;
private String label;
private String to;
private String replyTo;
private String partitionKey;
private String viaPartitionKey;
private String deadLetterSource;
private UUID lockToken;
private byte[] deliveryTag;
/**
* Creates an empty message with an empty byte array as body.
*/
public Message() {
this(DEFAULT_CONTENT);
}
/**
* Creates a message from a string. For backward compatibility reasons, the string is converted to a byte array and message body type is set to binary.
* @param content content of the message.
*/
public Message(String content) {
this(content.getBytes(DEFAULT_CHAR_SET));
}
/**
* Creates a message from a byte array. Message body type is set to binary.
* @param content content of the message
*/
public Message(byte[] content) {
this(Utils.fromBinay(content));
}
/**
* Creates a message from message body.
* @param body message body
*/
public Message(MessageBody body) {
this(body, DEFAULT_CONTENT_TYPE);
}
/**
* Creates a message from a string. For backward compatibility reasons, the string is converted to a byte array and message body type is set to binary.
* @param content content of the message
* @param contentType content type of the message
*/
public Message(String content, String contentType) {
this(content.getBytes(DEFAULT_CHAR_SET), contentType);
}
/**
* Creates a message from a byte array. Message body type is set to binary.
* @param content content of the message
* @param contentType content type of the message
*/
public Message(byte[] content, String contentType) {
this(Utils.fromBinay(content), contentType);
}
/**
* Creates a message from message body.
* @param body message body
* @param contentType content type of the message
*/
public Message(MessageBody body, String contentType) {
this(UUID.randomUUID().toString(), body, contentType);
}
/**
* Creates a message from a string. For backward compatibility reasons, the string is converted to a byte array and message body type is set to binary.
* @param messageId id of the message
* @param content content of the message
* @param contentType content type of the message
*/
public Message(String messageId, String content, String contentType) {
this(messageId, content.getBytes(DEFAULT_CHAR_SET), contentType);
}
/**
* Creates a message from a byte array. Message body type is set to binary.
* @param messageId id of the message
* @param content content of the message
* @param contentType content type of the message
*/
public Message(String messageId, byte[] content, String contentType) {
this(messageId, Utils.fromBinay(content), contentType);
}
/**
* Creates a message from message body.
* @param messageId id of the message
* @param body message body
* @param contentType content type of the message
*/
public Message(String messageId, MessageBody body, String contentType) {
this.messageId = messageId;
this.messageBody = body;
this.contentType = contentType;
this.properties = new HashMap<>();
}
@Override
public long getDeliveryCount() {
return deliveryCount;
}
void setDeliveryCount(long deliveryCount) {
this.deliveryCount = deliveryCount;
}
@Override
public String getMessageId() {
return messageId;
}
@Override
public void setMessageId(String messageId) {
this.messageId = messageId;
}
@Override
public Duration getTimeToLive() {
return timeToLive;
}
@Override
public void setTimeToLive(Duration timeToLive) {
if (timeToLive.isZero() || timeToLive.isNegative()) {
throw new IllegalArgumentException("timeToLive must be positive duration.");
}
this.timeToLive = timeToLive;
}
@Override
public String getContentType() {
return this.contentType;
}
@Override
public void setContentType(String contentType) {
this.contentType = contentType;
}
@Override
public Instant getExpiresAtUtc() {
return this.enqueuedTimeUtc.plus(this.timeToLive);
}
@Override
public Instant getLockedUntilUtc() {
return this.lockedUntilUtc;
}
public void setLockedUntilUtc(Instant lockedUntilUtc) {
this.lockedUntilUtc = lockedUntilUtc;
}
@Override
public Instant getEnqueuedTimeUtc() {
return this.enqueuedTimeUtc;
}
void setEnqueuedTimeUtc(Instant enqueuedTimeUtc) {
this.enqueuedTimeUtc = enqueuedTimeUtc;
}
@Override
public long getSequenceNumber() {
return this.sequenceNumber;
}
void setSequenceNumber(long sequenceNumber) {
this.sequenceNumber = sequenceNumber;
}
@Override
public String getSessionId() {
return this.sessionId;
}
@Override
public void setSessionId(String sessionId) {
this.sessionId = sessionId;
this.partitionKey = sessionId;
}
@Override
public Map getProperties() {
return this.properties;
}
@Override
public void setProperties(Map properties) {
this.properties = properties;
}
@Override
public String getCorrelationId() {
return this.correlationId;
}
@Override
public void setCorrelationId(String correlationId) {
this.correlationId = correlationId;
}
@Override
public String getTo() {
return this.to;
}
@Override
public void setTo(String to) {
this.to = to;
}
@Override
public String getReplyTo() {
return this.replyTo;
}
@Override
public void setReplyTo(String replyTo) {
this.replyTo = replyTo;
}
@Override
public String getLabel() {
return this.label;
}
@Override
public void setLabel(String label) {
this.label = label;
}
@Override
public String getReplyToSessionId() {
return this.replyToSessionId;
}
@Override
public void setReplyToSessionId(String replyToSessionId) {
this.replyToSessionId = replyToSessionId;
}
@Deprecated
@Override
public Instant getScheduledEnqueuedTimeUtc() {
return this.getScheduledEnqueueTimeUtc();
}
@Deprecated
@Override
public void setScheduledEnqueuedTimeUtc(Instant scheduledEnqueueTimeUtc) {
this.setScheduledEnqueueTimeUtc(scheduledEnqueueTimeUtc);
}
@Override
public Instant getScheduledEnqueueTimeUtc() {
return this.scheduledEnqueueTimeUtc;
}
@Override
public void setScheduledEnqueueTimeUtc(Instant scheduledEnqueueTimeUtc) {
this.scheduledEnqueueTimeUtc = scheduledEnqueueTimeUtc;
}
@Override
public String getPartitionKey() {
return this.partitionKey;
}
@Override
public void setPartitionKey(String partitionKey) {
if (this.sessionId != null && !this.sessionId.equals(partitionKey))
{
// SessionId is set. Then partition key must be same as session id.
throw new IllegalArgumentException("PartitionKey:" + partitionKey +" is not same as SessionId:" + this.sessionId);
}
this.partitionKey = partitionKey;
}
@Override
public String getViaPartitionKey() {
return this.viaPartitionKey;
}
@Override
public void setViaPartitionKey(String partitionKey) {
this.viaPartitionKey = partitionKey;
}
@Override
public String getDeadLetterSource() {
return this.deadLetterSource;
}
void setDeadLetterSource(String deadLetterSource) {
this.deadLetterSource = deadLetterSource;
}
@Override
public UUID getLockToken() {
return this.lockToken;
}
void setLockToken(UUID lockToken) {
this.lockToken = lockToken;
}
byte[] getDeliveryTag() {
return this.deliveryTag;
}
void setDeliveryTag(byte[] deliveryTag) {
this.deliveryTag = deliveryTag;
}
@Override
@Deprecated
public byte[] getBody() {
return Utils.getDataFromMessageBody(this.messageBody);
}
@Override
@Deprecated
public void setBody(byte[] body) {
this.messageBody = Utils.fromBinay(body);
}
@Override
public MessageBody getMessageBody() {
return this.messageBody;
}
@Override
public void setMessageBody(MessageBody body) {
this.messageBody = body;
}
@Override
public IMessage createCopy() {
Message copy = new Message(this.getMessageBody(), this.getContentType());
copy.setProperties(this.getProperties()); // Retain the same properties
copy.setMessageId(this.getMessageId());
copy.setCorrelationId(this.getCorrelationId());
copy.setTo(this.getTo());
copy.setReplyTo(this.getReplyTo());
copy.setLabel(this.getLabel());
copy.setReplyToSessionId(this.getReplyToSessionId());
copy.setSessionId(this.getSessionId());
copy.setScheduledEnqueueTimeUtc(this.getScheduledEnqueueTimeUtc());
copy.setPartitionKey(this.getPartitionKey());
copy.setTimeToLive(this.getTimeToLive());
return copy;
}
}
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