Java tutorial
/* * Copyright 2011 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.bazzar.base.dao.redis; import java.util.HashMap; import java.util.Map; import javax.inject.Inject; import javax.inject.Named; import net.sf.json.JSONObject; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.data.redis.core.RedisTemplate; import org.springframework.data.redis.support.atomic.RedisAtomicLong; @Named public class ItemRepository { @Autowired private RedisTemplate<String, Object> template; private final RedisAtomicLong jobIdCounter; @Inject public ItemRepository(RedisTemplate<String, Object> template) { this.template = template; if (template != null) { jobIdCounter = new RedisAtomicLong(KeyUtils.globalUid(), template.getConnectionFactory()); } else { jobIdCounter = null; } } public Long addJob(JSONObject json) { Long jobId = jobIdCounter.incrementAndGet(); final Map<String, Object> jobParams = new HashMap<String, Object>(); jobParams.put("id", jobId); jobParams.put("params", json.toString()); jobParams.put("status", "pending"); template.opsForHash().putAll(jobId.toString(), jobParams); return jobId; } public void updateJob(Map<Object, Object> jobParams) { template.opsForHash().putAll(jobParams.get("id").toString(), jobParams); } public Map<Object, Object> getJob(Long jobId) { return template.opsForHash().entries(jobId.toString()); } public boolean isJobValid(Long jobId) { return template.hasKey(jobId.toString()); } public Long sendJob(Long jobId) { return template.convertAndSend("pubsub:queue", jobId.toString()); } }