123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144 |
- /*
- * Copyright (c) 2006-2015 DMDirc Developers
- *
- * 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 com.dmdirc;
-
- import com.dmdirc.parser.common.ChannelJoinRequest;
- import com.dmdirc.parser.common.DefaultStringConverter;
- import com.dmdirc.parser.interfaces.StringConverter;
-
- import java.util.Collection;
- import java.util.Collections;
- import java.util.Date;
- import java.util.Map;
- import java.util.Optional;
- import java.util.concurrent.ConcurrentSkipListMap;
- import java.util.stream.Collectors;
-
- import static com.google.common.base.Preconditions.checkNotNull;
-
- /**
- * Utility class that maintains a map of channel names to channels.
- */
- public class ChannelMap {
-
- /** Map of lowercased channel names to channel objects. */
- private final Map<String, Channel> channels = new ConcurrentSkipListMap<>();
- /** String converter to use to lowercase names. */
- private StringConverter converter = new DefaultStringConverter();
-
- /**
- * Sets the string converter that will be used for any future case conversions. If the map is
- * non-empty and the converter is changed, duplicate entries may be created.
- *
- * @param converter The new converter to use.
- */
- public void setStringConverter(final StringConverter converter) {
- this.converter = checkNotNull(converter);
- }
-
- /**
- * Gets the specified channel, if it exists.
- *
- * @param channel The channel to retrieve.
- *
- * @return An optional channel.
- */
- public Optional<Channel> get(final String channel) {
- return Optional.ofNullable(channels.get(converter.toLowerCase(channel)));
- }
-
- /**
- * Gets all known channels.
- *
- * @return A collection of all known channels.
- */
- public Collection<Channel> getAll() {
- return Collections.unmodifiableCollection(channels.values());
- }
-
- /**
- * Adds a channel to the map. If a channel with the same name (when lowercased) is present, it
- * will be replaced.
- *
- * @param channel The new channel to be added.
- */
- public void add(final Channel channel) {
- channels.put(converter.toLowerCase(channel.getName()), channel);
- }
-
- /**
- * Removes a channel from the map.
- *
- * @param channel The channel to be removed.
- */
- public void remove(final String channel) {
- channels.remove(converter.toLowerCase(channel));
- }
-
- /**
- * Closes all channels in the map.
- */
- public void closeAll() {
- channels.values().forEach(Channel::close);
- }
-
- /**
- * Resets the state of all channels in the map.
- */
- public void resetAll() {
- channels.values().forEach(Channel::resetWindow);
- }
-
- /**
- * Adds a line to all channels in the map.
- *
- * @param messageType The type of message to be added.
- * @param date The time of origin of the message.
- * @param args The arguments for the message.
- */
- public void addLineToAll(final String messageType, final Date date, final Object... args) {
- channels.values().forEach(c -> c.addLine(messageType, date, args));
- }
-
- /**
- * Gets a representation of the channels in this map as a collection of join requests.
- *
- * @return A collection of join requests corresponding to channels in this map.
- */
- public Collection<ChannelJoinRequest> asJoinRequests() {
- return channels.values().stream()
- .map(channel -> new ChannelJoinRequest(channel.getName()))
- .collect(Collectors.toList());
- }
-
- /**
- * Creates a runnable that, when run, will cause each channel in the map at that time to check
- * its 'who' status.
- *
- * @return A new runnable.
- */
- public Runnable getWhoRunnable() {
- return () -> channels.values().forEach(Channel::checkWho);
- }
-
- }
|