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- /*
- * Copyright (c) 2006-2013 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.logger.ErrorLevel;
- import com.dmdirc.logger.Logger;
- import com.dmdirc.parser.common.MyInfo;
- import com.dmdirc.parser.interfaces.Parser;
- import com.dmdirc.parser.interfaces.ProtocolDescription;
- import com.dmdirc.plugins.NoSuchProviderException;
- import com.dmdirc.plugins.PluginManager;
- import com.dmdirc.plugins.Service;
- import com.dmdirc.plugins.ServiceProvider;
-
- import java.net.URI;
- import lombok.RequiredArgsConstructor;
-
- /**
- * Provides a method to retrieve a parser.
- *
- * @since 0.6
- */
- @RequiredArgsConstructor
- public class ParserFactory {
-
- /** PluginManager used by this ParserFactory */
- private final PluginManager pluginManager;
-
- /**
- * Retrieves a parser instance.
- *
- * @param myInfo The client information to use
- * @param address The address of the server to connect to
- * @return An appropriately configured parser
- * @since 0.6.3
- */
- public Parser getParser(final MyInfo myInfo, final URI address) {
- // TODO: Hacky Hack McHack
- if ("irc-test".equals(address.getScheme())) {
- try {
- return (Parser) Class.forName("com.dmdirc.harness.parser.TestParser")
- .getConstructor(MyInfo.class, URI.class)
- .newInstance(myInfo, address);
- } catch (Exception ex) {
- Logger.userError(ErrorLevel.UNKNOWN, "Unable to create parser", ex);
- }
- }
-
- final Object obj = getExportResult(address, "getParser", myInfo, address);
-
- if (obj instanceof Parser) {
- return (Parser) obj;
- }
- return null;
- }
-
- /**
- * Retrieves a protocol description.
- *
- * @param address The address to retrieve a description for
- * @return A corresponding protocol description
- * @since 0.6.4
- */
- public ProtocolDescription getDescription(final URI address) {
- final Object obj = getExportResult(address, "getProtocolDescription");
-
- if (obj instanceof ProtocolDescription) {
- return (ProtocolDescription) obj;
- }
- return null;
- }
-
- /**
- * Retrieves and executes an exported service with the specified name from a
- * {@link ServiceProvider} which can provide a parser for the specified
- * address. If no such provider or service is found, null is returned.
- *
- * @param address The address a provider is required for
- * @param serviceName The name of the service to be retrieved
- * @param args The arguments to be passed to the exported service
- * @return The result from a relevant exported service, or null
- * @since 0.6.4
- */
- protected Object getExportResult(final URI address,
- final String serviceName, final Object ... args) {
- // TODO: Move default scheme to a setting
- final String scheme = address.getScheme() == null ? "irc" : address.getScheme();
-
- try {
- final Service service = pluginManager.getService("parser", scheme);
-
- if (service != null && !service.getProviders().isEmpty()) {
- final ServiceProvider provider = service.getProviders().get(0);
-
- if (provider != null) {
- provider.activateServices();
-
- return provider.getExportedService(serviceName)
- .execute(args);
- }
- }
- } catch (NoSuchProviderException nspe) {
- Logger.userError(ErrorLevel.MEDIUM,
- "No parser found for: " + address.getScheme(), nspe);
- }
-
- return null;
- }
-
- }
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