123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182 |
- /*
- * Copyright (c) 2006-2017 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.commandparser.auto;
-
- import com.dmdirc.events.eventbus.EventBus;
-
- import java.util.Collections;
- import java.util.Map;
- import java.util.Optional;
- import java.util.Set;
- import java.util.concurrent.ConcurrentHashMap;
-
- import javax.inject.Inject;
- import javax.inject.Singleton;
-
- import static com.google.common.base.Preconditions.checkNotNull;
-
- /**
- * Manages {@link AutoCommand}s.
- */
- @Singleton
- public class AutoCommandManager {
-
- /** The bus to listen for events on. */
- private final EventBus eventBus;
- /** The factory to use to create handlers. */
- private final AutoCommandHandlerFactory factory;
- /** Known auto commands, mapped on to their handlers. */
- private final Map<AutoCommand, AutoCommandHandler> autoCommands = new ConcurrentHashMap<>();
- /** Whether the manager has been started or not. */
- private boolean started;
-
- /**
- * Creates a new instance of {@link AutoCommandManager}.
- *
- * @param eventBus The bus to listen to events on.
- * @param factory The factory to use to create handlers.
- */
- @Inject
- public AutoCommandManager(
- final EventBus eventBus,
- final AutoCommandHandlerFactory factory) {
- this.eventBus = eventBus;
- this.factory = factory;
- }
-
- /**
- * Starts handling events and triggering auto commands.
- */
- public void start() {
- started = true;
- autoCommands.values().forEach(eventBus::subscribe);
- }
-
- /**
- * Stops handling events and triggering auto commands.
- */
- public void stop() {
- started = false;
- autoCommands.values().forEach(eventBus::unsubscribe);
- }
-
- /**
- * Adds an auto command to this manager.
- *
- * <p>Only one auto command may exist for each combination of network, server and profile
- * targets. This method will throw an {@link IllegalStateException} if the given command is
- * a duplicate.
- *
- * @param autoCommand The command to be added.
- * @throws IllegalStateException If a command with the same target already exists.
- */
- public void addAutoCommand(final AutoCommand autoCommand) {
- checkNotNull(autoCommand);
-
- if (getAutoCommand(autoCommand.getNetwork(), autoCommand.getServer(),
- autoCommand.getProfile()).isPresent()) {
- throw new IllegalStateException("Only one AutoCommand may exist per " +
- "network/server/profile");
- }
-
- final AutoCommandHandler handler = factory.getAutoCommandHandler(autoCommand);
-
- if (started) {
- eventBus.subscribe(handler);
- }
-
- autoCommands.put(autoCommand, handler);
- }
-
- /**
- * Removes an existing auto command from this manager.
- *
- * @param autoCommand The command to be removed.
- */
- public void removeAutoCommand(final AutoCommand autoCommand) {
- checkNotNull(autoCommand);
- final AutoCommandHandler handler = autoCommands.remove(autoCommand);
-
- if (started) {
- eventBus.unsubscribe(handler);
- }
- }
-
- /**
- * 'Replaces' one AutoCommand with another, by removing the original and adding the replacement.
- *
- * @param original The original command to be replaced.
- * @param replacement The new command to be added.
- */
- public void replaceAutoCommand(final AutoCommand original, final AutoCommand replacement) {
- removeAutoCommand(original);
- addAutoCommand(replacement);
- }
-
- /**
- * Gets a set of all registered auto commands.
- *
- * @return The set of all known auto commands.
- */
- public Set<AutoCommand> getAutoCommands() {
- return Collections.unmodifiableSet(autoCommands.keySet());
- }
-
- /**
- * Returns the single global auto command, if it exists.
- *
- * @return The global auto-command, if it exists.
- */
- public Optional<AutoCommand> getGlobalAutoCommand() {
- return getAutoCommand(Optional.empty(), Optional.empty(), Optional.empty());
- }
-
- /**
- * Returns a single auto command matching the given parameters, if one exists.
- *
- * @param network The network to match
- * @param server The server to match
- * @param profile The profile to match
- * @return The matched auto command, if it exists.
- */
- public Optional<AutoCommand> getAutoCommand(final Optional<String> network,
- final Optional<String> server, final Optional<String> profile) {
- return getAutoCommands()
- .parallelStream()
- .filter(c -> c.getNetwork().equals(network))
- .filter(c -> c.getServer().equals(server))
- .filter(c -> c.getProfile().equals(profile))
- .findAny();
- }
-
- /**
- * Returns a single auto command matching the given parameters, or creates a new one if it
- * doesn't exist.
- *
- * @param network The network to match
- * @param server The server to match
- * @param profile The profile to match
- * @return The matched auto command, or a new auto command with the given targets.
- */
- public AutoCommand getOrCreateAutoCommand(final Optional<String> network,
- final Optional<String> server, final Optional<String> profile) {
- return getAutoCommand(network, server, profile).orElse(
- AutoCommand.create(server, network, profile, ""));
- }
-
- }
|