--- /dev/null
+/*
+ * XdccDownloader - Source.java - Copyright © 2013 David Roden
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.irc;
+
+import com.google.common.base.Optional;
+
+/**
+ * Container for reply source information.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class Source {
+
+ /** The nickname. */
+ private final Optional<String> nick;
+
+ /** The username. */
+ private final Optional<String> username;
+
+ /** The server. */
+ private final String server;
+
+ /**
+ * Creates a new source.
+ *
+ * @param nick
+ * The nickname
+ * @param username
+ * The username
+ * @param server
+ * The server
+ */
+ Source(Optional<String> nick, Optional<String> username, String server) {
+ this.nick = nick;
+ this.username = username;
+ this.server = server;
+ }
+
+ //
+ // ACCESSORS
+ //
+
+ /**
+ * Returns the nickname of the source.
+ *
+ * @return The nickname of the source
+ */
+ public Optional<String> nick() {
+ return nick;
+ }
+
+ /**
+ * Returns the username of the source.
+ *
+ * @return The username of the source
+ */
+ public Optional<String> username() {
+ return username;
+ }
+
+ /**
+ * Returns the server of the source.
+ *
+ * @return The server of the source
+ */
+ public String server() {
+ return server;
+ }
+
+ //
+ // STATIC METHODS
+ //
+
+ /**
+ * Parses a source from the given string.
+ *
+ * @param source
+ * The string to which to parse the source from
+ * @return The parsed source
+ */
+ public static Source parseSource(String source) {
+ int exclamationMark = source.indexOf('!');
+ int atSign = source.indexOf('@', exclamationMark);
+
+ if ((exclamationMark == -1) || (atSign == -1)) {
+ return new Source(Optional.<String>absent(), Optional.<String>absent(), source);
+ }
+ return new Source(Optional.of(source.substring(0, exclamationMark)), Optional.of(source.substring(exclamationMark + 1, atSign)), source.substring(atSign + 1));
+ }
+
+}
--- /dev/null
+/*
+ * XdccDownloader - SourceTest.java - Copyright © 2013 David Roden
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.irc;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.CoreMatchers.notNullValue;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+import com.google.common.base.Optional;
+import org.testng.annotations.Test;
+
+/**
+ * Tests for {@link Source}.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class SourceTest {
+
+ @Test
+ public void testParser() {
+ Source source;
+
+ source = Source.parseSource("server.irc.net");
+ assertThat(source, notNullValue());
+ assertThat(source.nick(), is(Optional.<String>absent()));
+ assertThat(source.username(), is(Optional.<String>absent()));
+ assertThat(source.server(), is("server.irc.net"));
+
+ source = Source.parseSource("foo!bar@server.irc.net");
+ assertThat(source, notNullValue());
+ assertThat(source.nick(), is(Optional.of("foo")));
+ assertThat(source.username(), is(Optional.of("bar")));
+ assertThat(source.server(), is("server.irc.net"));
+ }
+
+}