/*
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* Copyright 2014 gitblit.com.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.gitblit.guice;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.gitblit.IStoredSettings;
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import com.gitblit.Keys;
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import com.gitblit.manager.IRuntimeManager;
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import com.gitblit.tickets.ITicketService;
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import com.gitblit.tickets.NullTicketService;
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import com.gitblit.utils.StringUtils;
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import com.google.inject.Inject;
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import com.google.inject.Provider;
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import com.google.inject.Singleton;
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/**
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* Provides a lazily-instantiated ITicketService configured from IStoredSettings.
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*
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* @author James Moger
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*
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*/
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@Singleton
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public class ITicketServiceProvider implements Provider<ITicketService> {
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private final Logger logger = LoggerFactory.getLogger(getClass());
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private final IRuntimeManager runtimeManager;
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private volatile ITicketService service;
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@Inject
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public ITicketServiceProvider(IRuntimeManager runtimeManager) {
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this.runtimeManager = runtimeManager;
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}
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@Override
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public synchronized ITicketService get() {
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if (service != null) {
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return service;
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}
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IStoredSettings settings = runtimeManager.getSettings();
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String clazz = settings.getString(Keys.tickets.service, NullTicketService.class.getName());
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if (StringUtils.isEmpty(clazz)) {
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clazz = NullTicketService.class.getName();
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}
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try {
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Class<? extends ITicketService> serviceClass = (Class<? extends ITicketService>) Class.forName(clazz);
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service = runtimeManager.getInjector().getInstance(serviceClass);
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} catch (Exception e) {
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logger.error("failed to create ticket service", e);
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service = runtimeManager.getInjector().getInstance(NullTicketService.class);
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}
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return service;
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}
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}
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