();
private final Set bodies = new HashSet();
/**
* Creates a new, "normal" message.
*/
public Message() {
}
/**
* Creates a new "normal" message to the specified recipient.
*
* @param to the recipient of the message.
*/
public Message(Jid to) {
setTo(to);
}
/**
* Creates a new message of the specified type to a recipient.
*
* @param to the user to send the message to.
* @param type the message type.
*/
public Message(Jid to, Type type) {
this(to);
setType(type);
}
/**
* Creates a new message to the specified recipient and with the specified body.
*
* @param to the user to send the message to.
* @param body the body of the message.
*/
public Message(Jid to, String body) {
this(to);
setBody(body);
}
/**
* Creates a new message to the specified recipient and with the specified body.
*
* @param to the user to send the message to.
* @param body the body of the message.
* @throws XmppStringprepException if 'to' is not a valid XMPP address.
*/
public Message(String to, String body) throws XmppStringprepException {
this(JidCreate.from(to), body);
}
/**
* Creates a new message with the specified recipient and extension element.
*
* @param to
* @param extensionElement
* @since 4.2
*/
public Message(Jid to, ExtensionElement extensionElement) {
this(to);
addExtension(extensionElement);
}
/**
* Copy constructor.
*
* This does not perform a deep clone, as extension elements are shared between the new and old
* instance.
*
*
* @param other
*/
public Message(Message other) {
super(other);
this.type = other.type;
this.thread = other.thread;
this.subjects.addAll(other.subjects);
this.bodies.addAll(other.bodies);
}
/**
* Returns the type of the message. If no type has been set this method will return {@link
* org.jivesoftware.smack.packet.Message.Type#normal}.
*
* @return the type of the message.
*/
public Type getType() {
if (type == null) {
return Type.normal;
}
return type;
}
/**
* Sets the type of the message.
*
* @param type the type of the message.
*/
public void setType(Type type) {
this.type = type;
}
/**
* Returns the default subject of the message, or null if the subject has not been set.
* The subject is a short description of message contents.
*
* The default subject of a message is the subject that corresponds to the message's language.
* (see {@link #getLanguage()}) or if no language is set to the applications default
* language (see {@link Stanza#getDefaultLanguage()}).
*
* @return the subject of the message.
*/
public String getSubject() {
return getSubject(null);
}
/**
* Returns the subject corresponding to the language. If the language is null, the method result
* will be the same as {@link #getSubject()}. Null will be returned if the language does not have
* a corresponding subject.
*
* @param language the language of the subject to return.
* @return the subject related to the passed in language.
*/
public String getSubject(String language) {
Subject subject = getMessageSubject(language);
return subject == null ? null : subject.subject;
}
private Subject getMessageSubject(String language) {
language = determineLanguage(language);
for (Subject subject : subjects) {
if (language.equals(subject.language)) {
return subject;
}
}
return null;
}
/**
* Returns a set of all subjects in this Message, including the default message subject accessible
* from {@link #getSubject()}.
*
* @return a collection of all subjects in this message.
*/
public Set getSubjects() {
return Collections.unmodifiableSet(subjects);
}
/**
* Sets the subject of the message. The subject is a short description of
* message contents.
*
* @param subject the subject of the message.
*/
public void setSubject(String subject) {
if (subject == null) {
removeSubject(""); // use empty string because #removeSubject(null) is ambiguous
return;
}
addSubject(null, subject);
}
/**
* Adds a subject with a corresponding language.
*
* @param language the language of the subject being added.
* @param subject the subject being added to the message.
* @return the new {@link org.jivesoftware.smack.packet.Message.Subject}
* @throws NullPointerException if the subject is null, a null pointer exception is thrown
*/
public Subject addSubject(String language, String subject) {
language = determineLanguage(language);
Subject messageSubject = new Subject(language, subject);
subjects.add(messageSubject);
return messageSubject;
}
/**
* Removes the subject with the given language from the message.
*
* @param language the language of the subject which is to be removed
* @return true if a subject was removed and false if it was not.
*/
public boolean removeSubject(String language) {
language = determineLanguage(language);
for (Subject subject : subjects) {
if (language.equals(subject.language)) {
return subjects.remove(subject);
}
}
return false;
}
/**
* Removes the subject from the message and returns true if the subject was removed.
*
* @param subject the subject being removed from the message.
* @return true if the subject was successfully removed and false if it was not.
*/
public boolean removeSubject(Subject subject) {
return subjects.remove(subject);
}
/**
* Returns all the languages being used for the subjects, not including the default subject.
*
* @return the languages being used for the subjects.
*/
public List getSubjectLanguages() {
Subject defaultSubject = getMessageSubject(null);
List languages = new ArrayList();
for (Subject subject : subjects) {
if (!subject.equals(defaultSubject)) {
languages.add(subject.language);
}
}
return Collections.unmodifiableList(languages);
}
/**
* Returns the default body of the message, or null if the body has not been set. The body
* is the main message contents.
*
* The default body of a message is the body that corresponds to the message's language.
* (see {@link #getLanguage()}) or if no language is set to the applications default
* language (see {@link Stanza#getDefaultLanguage()}).
*
* @return the body of the message.
*/
public String getBody() {
return getBody(null);
}
/**
* Returns the body corresponding to the language. If the language is null, the method result
* will be the same as {@link #getBody()}. Null will be returned if the language does not have
* a corresponding body.
*
* @param language the language of the body to return.
* @return the body related to the passed in language.
* @since 3.0.2
*/
public String getBody(String language) {
Body body = getMessageBody(language);
return body == null ? null : body.message;
}
private Body getMessageBody(String language) {
language = determineLanguage(language);
for (Body body : bodies) {
if (language.equals(body.language)) {
return body;
}
}
return null;
}
/**
* Returns a set of all bodies in this Message, including the default message body accessible
* from {@link #getBody()}.
*
* @return a collection of all bodies in this Message.
* @since 3.0.2
*/
public Set
getBodies() {
return Collections.unmodifiableSet(bodies);
}
/**
* Sets the body of the message.
*
* @param body the body of the message.
* @see #setBody(String)
* @since 4.2
*/
public void setBody(CharSequence body) {
String bodyString;
if (body != null) {
bodyString = body.toString();
} else {
bodyString = null;
}
setBody(bodyString);
}
/**
* Sets the body of the message. The body is the main message contents.
*
* @param body the body of the message.
*/
public void setBody(String body) {
if (body == null) {
removeBody(""); // use empty string because #removeBody(null) is ambiguous
return;
}
addBody(null, body);
}
/**
* Adds a body with a corresponding language.
*
* @param language the language of the body being added.
* @param body the body being added to the message.
* @return the new {@link org.jivesoftware.smack.packet.Message.Body}
* @throws NullPointerException if the body is null, a null pointer exception is thrown
* @since 3.0.2
*/
public Body addBody(String language, String body) {
language = determineLanguage(language);
Body messageBody = new Body(language, body);
bodies.add(messageBody);
return messageBody;
}
/**
* Removes the body with the given language from the message.
*
* @param language the language of the body which is to be removed
* @return true if a body was removed and false if it was not.
*/
public boolean removeBody(String language) {
language = determineLanguage(language);
for (Body body : bodies) {
if (language.equals(body.language)) {
return bodies.remove(body);
}
}
return false;
}
/**
* Removes the body from the message and returns true if the body was removed.
*
* @param body the body being removed from the message.
* @return true if the body was successfully removed and false if it was not.
* @since 3.0.2
*/
public boolean removeBody(Body body) {
return bodies.remove(body);
}
/**
* Returns all the languages being used for the bodies, not including the default body.
*
* @return the languages being used for the bodies.
* @since 3.0.2
*/
public List getBodyLanguages() {
Body defaultBody = getMessageBody(null);
List languages = new ArrayList();
for (Body body : bodies) {
if (!body.equals(defaultBody)) {
languages.add(body.language);
}
}
return Collections.unmodifiableList(languages);
}
/**
* Returns the thread id of the message, which is a unique identifier for a sequence
* of "chat" messages. If no thread id is set, null will be returned.
*
* @return the thread id of the message, or null if it doesn't exist.
*/
public String getThread() {
return thread;
}
/**
* Sets the thread id of the message, which is a unique identifier for a sequence
* of "chat" messages.
*
* @param thread the thread id of the message.
*/
public void setThread(String thread) {
this.thread = thread;
}
private String determineLanguage(String language) {
// empty string is passed by #setSubject() and #setBody() and is the same as null
language = "".equals(language) ? null : language;
// if given language is null check if message language is set
if (language == null && this.language != null) {
return this.language;
}
else if (language == null) {
return getDefaultLanguage();
}
else {
return language;
}
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("Message Stanza [");
logCommonAttributes(sb);
if (type != null) {
sb.append("type=").append(type).append(',');
}
sb.append(']');
return sb.toString();
}
@Override
public XmlStringBuilder toXML() {
XmlStringBuilder buf = new XmlStringBuilder();
buf.halfOpenElement(ELEMENT);
addCommonAttributes(buf);
buf.optAttribute("type", type);
buf.rightAngleBracket();
// Add the subject in the default language
Subject defaultSubject = getMessageSubject(null);
if (defaultSubject != null) {
buf.element("subject", defaultSubject.subject);
}
// Add the subject in other languages
for (Subject subject : getSubjects()) {
// Skip the default language
if (subject.equals(defaultSubject))
continue;
buf.halfOpenElement("subject").xmllangAttribute(subject.language).rightAngleBracket();
buf.escape(subject.subject);
buf.closeElement("subject");
}
// Add the body in the default language
Body defaultBody = getMessageBody(null);
if (defaultBody != null) {
buf.element("body", defaultBody.message);
}
// Add the bodies in other languages
for (Body body : getBodies()) {
// Skip the default language
if (body.equals(defaultBody))
continue;
buf.halfOpenElement(BODY).xmllangAttribute(body.getLanguage()).rightAngleBracket();
buf.escape(body.getMessage());
buf.closeElement(BODY);
}
buf.optElement("thread", thread);
// Append the error subpacket if the message type is an error.
if (type == Type.error) {
appendErrorIfExists(buf);
}
// Add packet extensions, if any are defined.
buf.append(getExtensionsXML());
buf.closeElement(ELEMENT);
return buf;
}
/**
* Creates and returns a copy of this message stanza.
*
* This does not perform a deep clone, as extension elements are shared between the new and old
* instance.
*
* @return a clone of this message.
*/
@Override
public Message clone() {
return new Message(this);
}
/**
* Represents a message subject, its language and the content of the subject.
*/
public static final class Subject {
private final String subject;
private final String language;
private Subject(String language, String subject) {
if (language == null) {
throw new NullPointerException("Language cannot be null.");
}
if (subject == null) {
throw new NullPointerException("Subject cannot be null.");
}
this.language = language;
this.subject = subject;
}
/**
* Returns the language of this message subject.
*
* @return the language of this message subject.
*/
public String getLanguage() {
return language;
}
/**
* Returns the subject content.
*
* @return the content of the subject.
*/
public String getSubject() {
return subject;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + this.language.hashCode();
result = prime * result + this.subject.hashCode();
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
Subject other = (Subject) obj;
// simplified comparison because language and subject are always set
return this.language.equals(other.language) && this.subject.equals(other.subject);
}
}
/**
* Represents a message body, its language and the content of the message.
*/
public static final class Body {
private final String message;
private final String language;
private Body(String language, String message) {
if (language == null) {
throw new NullPointerException("Language cannot be null.");
}
if (message == null) {
throw new NullPointerException("Message cannot be null.");
}
this.language = language;
this.message = message;
}
/**
* Returns the language of this message body.
*
* @return the language of this message body.
*/
public String getLanguage() {
return language;
}
/**
* Returns the message content.
*
* @return the content of the message.
*/
public String getMessage() {
return message;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + this.language.hashCode();
result = prime * result + this.message.hashCode();
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
Body other = (Body) obj;
// simplified comparison because language and message are always set
return this.language.equals(other.language) && this.message.equals(other.message);
}
}
/**
* Represents the type of a message.
*/
public enum Type {
/**
* (Default) a normal text message used in email like interface.
*/
normal,
/**
* Typically short text message used in line-by-line chat interfaces.
*/
chat,
/**
* Chat message sent to a groupchat server for group chats.
*/
groupchat,
/**
* Text message to be displayed in scrolling marquee displays.
*/
headline,
/**
* indicates a messaging error.
*/
error;
/**
* Converts a String into the corresponding types. Valid String values that can be converted
* to types are: "normal", "chat", "groupchat", "headline" and "error".
*
* @param string the String value to covert.
* @return the corresponding Type.
* @throws IllegalArgumentException when not able to parse the string parameter
* @throws NullPointerException if the string is null
*/
public static Type fromString(String string) {
return Type.valueOf(string.toLowerCase(Locale.US));
}
}
}