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307 lines
10 KiB
Java
307 lines
10 KiB
Java
/**
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*
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* Copyright 2003-2007 Jive Software.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smackx.muc.packet;
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import java.util.Date;
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import org.jivesoftware.smack.packet.ExtensionElement;
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import org.jivesoftware.smack.packet.NamedElement;
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import org.jivesoftware.smack.packet.Stanza;
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import org.jivesoftware.smack.util.XmlStringBuilder;
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import org.jxmpp.util.XmppDateTime;
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/**
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* Represents extended presence information whose sole purpose is to signal the ability of
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* the occupant to speak the MUC protocol when joining a room. If the room requires a password
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* then the MUCInitialPresence should include one.
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* <p>
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* The amount of discussion history provided on entering a room (perhaps because the
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* user is on a low-bandwidth connection or is using a small-footprint client) could be managed by
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* setting a configured History instance to the MUCInitialPresence instance.
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*
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* @author Gaston Dombiak
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* @see MUCInitialPresence#setHistory(MUCInitialPresence.History)
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*/
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public class MUCInitialPresence implements ExtensionElement {
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public static final String ELEMENT = "x";
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public static final String NAMESPACE = "http://jabber.org/protocol/muc";
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// TODO make those fields final once deprecated setter methods have been removed.
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private String password;
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private History history;
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/**
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* Deprecated constructor.
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* @deprecated use {@link #MUCInitialPresence(String, int, int, int, Date)} instead.
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*/
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@Deprecated
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public MUCInitialPresence() {
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}
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/**
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* Construct a new MUC initial presence extension.
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*
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* @param password the optional password used to enter the room.
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* @param maxChars the maximal count of characters of history to request.
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* @param maxStanzas the maximal count of stanzas of history to request.
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* @param seconds the last seconds since when to request history.
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* @param since the date since when to request history.
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*/
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public MUCInitialPresence(String password, int maxChars, int maxStanzas, int seconds, Date since) {
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this.password = password;
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if (maxChars > -1 || maxStanzas > -1 || seconds > -1 || since != null) {
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this.history = new History(maxChars, maxStanzas, seconds, since);
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} else {
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this.history = null;
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}
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}
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@Override
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public String getElementName() {
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return ELEMENT;
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}
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@Override
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public String getNamespace() {
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return NAMESPACE;
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}
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@Override
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public XmlStringBuilder toXML() {
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XmlStringBuilder xml = new XmlStringBuilder(this);
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xml.rightAngleBracket();
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xml.optElement("password", getPassword());
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xml.optElement(getHistory());
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xml.closeElement(this);
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return xml;
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}
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/**
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* Returns the history that manages the amount of discussion history provided on
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* entering a room.
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*
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* @return the history that manages the amount of discussion history provided on
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* entering a room.
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*/
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public History getHistory() {
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return history;
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}
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/**
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* Returns the password to use when the room requires a password.
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*
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* @return the password to use when the room requires a password.
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*/
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public String getPassword() {
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return password;
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}
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/**
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* Sets the History that manages the amount of discussion history provided on
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* entering a room.
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*
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* @param history that manages the amount of discussion history provided on
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* entering a room.
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* @deprecated use {@link #MUCInitialPresence(String, int, int, int, Date)} instead.
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*/
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@Deprecated
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public void setHistory(History history) {
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this.history = history;
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}
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/**
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* Sets the password to use when the room requires a password.
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*
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* @param password the password to use when the room requires a password.
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* @deprecated use {@link #MUCInitialPresence(String, int, int, int, Date)} instead.
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*/
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@Deprecated
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public void setPassword(String password) {
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this.password = password;
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}
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/**
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* Retrieve the MUCInitialPresence PacketExtension from packet, if any.
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*
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* @param packet
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* @return the MUCInitialPresence PacketExtension or {@code null}
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* @deprecated use {@link #from(Stanza)} instead
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*/
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@Deprecated
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public static MUCInitialPresence getFrom(Stanza packet) {
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return from(packet);
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}
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/**
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* Retrieve the MUCInitialPresence PacketExtension from packet, if any.
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*
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* @param packet
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* @return the MUCInitialPresence PacketExtension or {@code null}
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*/
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public static MUCInitialPresence from(Stanza packet) {
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return packet.getExtension(ELEMENT, NAMESPACE);
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}
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/**
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* The History class controls the number of characters or messages to receive
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* when entering a room.
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*
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* @author Gaston Dombiak
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*/
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public static class History implements NamedElement {
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public static final String ELEMENT = "history";
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// TODO make those fields final once the deprecated setter methods have been removed.
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private int maxChars;
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private int maxStanzas;
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private int seconds;
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private Date since;
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/**
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* Deprecated constructor.
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* @deprecated use {@link #History(int, int, int, Date)} instead.
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*/
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@Deprecated
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public History() {
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this.maxChars = -1;
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this.maxStanzas = -1;
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this.seconds = -1;
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}
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public History(int maxChars, int maxStanzas, int seconds, Date since) {
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if (maxChars < 0 && maxStanzas < 0 && seconds < 0 && since == null) {
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throw new IllegalArgumentException();
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}
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this.maxChars = maxChars;
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this.maxStanzas = maxStanzas;
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this.seconds = seconds;
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this.since = since;
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}
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/**
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* Returns the total number of characters to receive in the history.
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*
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* @return total number of characters to receive in the history.
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*/
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public int getMaxChars() {
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return maxChars;
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}
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/**
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* Returns the total number of messages to receive in the history.
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*
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* @return the total number of messages to receive in the history.
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*/
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public int getMaxStanzas() {
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return maxStanzas;
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}
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/**
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* Returns the number of seconds to use to filter the messages received during that time.
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* In other words, only the messages received in the last "X" seconds will be included in
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* the history.
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*
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* @return the number of seconds to use to filter the messages received during that time.
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*/
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public int getSeconds() {
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return seconds;
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}
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/**
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* Returns the since date to use to filter the messages received during that time.
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* In other words, only the messages received since the datetime specified will be
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* included in the history.
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*
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* @return the since date to use to filter the messages received during that time.
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*/
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public Date getSince() {
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return since;
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}
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/**
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* Sets the total number of characters to receive in the history.
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*
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* @param maxChars the total number of characters to receive in the history.
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* @deprecated use {@link #History(int, int, int, Date)} instead.
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*/
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@Deprecated
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public void setMaxChars(int maxChars) {
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this.maxChars = maxChars;
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}
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/**
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* Sets the total number of messages to receive in the history.
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*
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* @param maxStanzas the total number of messages to receive in the history.
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* @deprecated use {@link #History(int, int, int, Date)} instead.
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*/
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@Deprecated
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public void setMaxStanzas(int maxStanzas) {
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this.maxStanzas = maxStanzas;
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}
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/**
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* Sets the number of seconds to use to filter the messages received during that time.
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* In other words, only the messages received in the last "X" seconds will be included in
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* the history.
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*
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* @param seconds the number of seconds to use to filter the messages received during
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* that time.
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* @deprecated use {@link #History(int, int, int, Date)} instead.
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*/
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@Deprecated
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public void setSeconds(int seconds) {
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this.seconds = seconds;
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}
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/**
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* Sets the since date to use to filter the messages received during that time.
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* In other words, only the messages received since the datetime specified will be
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* included in the history.
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*
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* @param since the since date to use to filter the messages received during that time.
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* @deprecated use {@link #History(int, int, int, Date)} instead.
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*/
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@Deprecated
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public void setSince(Date since) {
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this.since = since;
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}
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@Override
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public XmlStringBuilder toXML() {
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XmlStringBuilder xml = new XmlStringBuilder(this);
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xml.optIntAttribute("maxchars", getMaxChars());
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xml.optIntAttribute("maxstanzas", getMaxStanzas());
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xml.optIntAttribute("seconds", getSeconds());
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if (getSince() != null) {
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xml.attribute("since", XmppDateTime.formatXEP0082Date(getSince()));
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}
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xml.closeEmptyElement();
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return xml;
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}
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@Override
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public String getElementName() {
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return ELEMENT;
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}
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}
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}
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