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/*
* The MIT License (MIT)
*
* Copyright (c) 2014-2017 Christian Schudt
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package rocks.xmpp.addr;
import java.text.Collator;
import java.util.Arrays;
/**
* Abstract Jid implementation for both full and bare JIDs.
*
* @author Christian Schudt
*/
abstract class AbstractJid implements Jid {
/**
* Checks if the JID is a full JID.
* <blockquote>
* <p>The term "full JID" refers to an XMPP address of the form <localpart@domainpart/resourcepart> (for a particular authorized client or device associated with an account) or of the form <domainpart/resourcepart> (for a particular resource or script associated with a server).</p>
* </blockquote>
*
* @return True, if the JID is a full JID; otherwise false.
*/
@Override
public final boolean isFullJid() {
return getResource() != null;
}
/**
* Checks if the JID is a bare JID.
* <blockquote>
* <p>The term "bare JID" refers to an XMPP address of the form <localpart@domainpart> (for an account at a server) or of the form <domainpart> (for a server).</p>
* </blockquote>
*
* @return True, if the JID is a bare JID; otherwise false.
*/
@Override
public final boolean isBareJid() {
return getResource() == null;
}
@Override
public final boolean isDomainJid() {
return getLocal() == null;
}
@Override
public final boolean equals(Object o) {
if (o == this) {
return true;
}
if (!(o instanceof Jid)) {
return false;
}
Jid other = (Jid) o;
return (getLocal() == other.getLocal() || getLocal() != null && getLocal().equals(other.getLocal()))
&& (getDomain() == other.getDomain() || getDomain() != null && getDomain().equals(other.getDomain()))
&& (getResource() == other.getResource() || getResource() != null && getResource().equals(other.getResource()));
}
@Override
public final int hashCode() {
return Arrays.hashCode(new String[]{getLocal(), getDomain(), getResource()});
}
/**
* Compares this JID with another JID. First domain parts are compared. If these are equal, local parts are compared
* and if these are equal, too, resource parts are compared.
*
* @param o The other JID.
* @return The comparison result.
*/
@Override
public final int compareTo(Jid o) {
if (this == o) {
return 0;
}
if (o != null) {
final Collator collator = Collator.getInstance();
int result;
// First compare domain parts.
if (getDomain() != null) {
result = o.getDomain() != null ? collator.compare(getDomain(), o.getDomain()) : -1;
} else {
result = o.getDomain() != null ? 1 : 0;
}
// If the domains are equal, compare local parts.
if (result == 0) {
if (getLocal() != null) {
// If this local part is not null, but the other is null, move this down (1).
result = o.getLocal() != null ? collator.compare(getLocal(), o.getLocal()) : 1;
} else {
// If this local part is null, but the other is not, move this up (-1).
result = o.getLocal() != null ? -1 : 0;
}
}
// If the local parts are equal, compare resource parts.
if (result == 0) {
if (getResource() != null) {
// If this resource part is not null, but the other is null, move this down (1).
return o.getResource() != null ? collator.compare(getResource(), o.getResource()) : 1;
} else {
// If this resource part is null, but the other is not, move this up (-1).
return o.getResource() != null ? -1 : 0;
}
}
return result;
} else {
return -1;
}
}
@Override
public final int length() {
return toString().length();
}
@Override
public final char charAt(int index) {
return toString().charAt(index);
}
@Override
public final CharSequence subSequence(int start, int end) {
return toString().subSequence(start, end);
}
/**
* Returns the JID in its string representation, i.e. [ localpart "@" ] domainpart [ "/" resourcepart ].
*
* @return The JID.
* @see #toEscapedString()
*/
@Override
public final String toString() {
return toString(getLocal(), getDomain(), getResource());
}
@Override
public final String toEscapedString() {
return toString(getEscapedLocal(), getDomain(), getResource());
}
static String toString(String local, String domain, String resource) {
StringBuilder sb = new StringBuilder();
if (local != null) {
sb.append(local).append('@');
}
sb.append(domain);
if (resource != null) {
sb.append('/').append(resource);
}
return sb.toString();
}
}
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