jedis例子

时间:2021-12-02 16:35:19
@Test public void testDiscoverNodesAutomatically(){
Set<HostAndPort> jedisClusterNode=new HashSet<HostAndPort>();
jedisClusterNode.add(new HostAndPort("127.0.0.1",7379));
JedisCluster jc=new JedisCluster(jedisClusterNode);
assertEquals(3,jc.getClusterNodes().size());
}
@Test public void testCalculateConnectionPerSlot(){
Set<HostAndPort> jedisClusterNode=new HashSet<HostAndPort>();
jedisClusterNode.add(new HostAndPort("127.0.0.1",7379));
JedisCluster jc=new JedisCluster(jedisClusterNode);
jc.set("foo","bar");
jc.set("test","test");
assertEquals("bar",node3.get("foo"));
assertEquals("test",node2.get("test"));
}
@Test public void testRecalculateSlotsWhenMoved() throws InterruptedException {
Set<HostAndPort> jedisClusterNode=new HashSet<HostAndPort>();
jedisClusterNode.add(new HostAndPort("127.0.0.1",7379));
JedisCluster jc=new JedisCluster(jedisClusterNode);
int slot51=JedisClusterCRC16.getSlot("51");
node2.clusterDelSlots(slot51);
node3.clusterDelSlots(slot51);
node3.clusterAddSlots(slot51);
JedisClusterTestUtil.waitForClusterReady(node1,node2,node3);
jc.set("51","foo");
assertEquals("foo",jc.get("51"));
}
@Test public void testAskResponse() throws InterruptedException {
Set<HostAndPort> jedisClusterNode=new HashSet<HostAndPort>();
jedisClusterNode.add(new HostAndPort("127.0.0.1",7379));
JedisCluster jc=new JedisCluster(jedisClusterNode);
int slot51=JedisClusterCRC16.getSlot("51");
node3.clusterSetSlotImporting(slot51,JedisClusterTestUtil.getNodeId(node2.clusterNodes()));
node2.clusterSetSlotMigrating(slot51,JedisClusterTestUtil.getNodeId(node3.clusterNodes()));
jc.set("51","foo");
assertEquals("foo",jc.get("51"));
}
@Test(expected=JedisClusterException.class) public void testThrowExceptionWithoutKey(){
Set<HostAndPort> jedisClusterNode=new HashSet<HostAndPort>();
jedisClusterNode.add(new HostAndPort("127.0.0.1",7379));
JedisCluster jc=new JedisCluster(jedisClusterNode);
jc.ping();
}
@Test(expected=JedisClusterMaxRedirectionsException.class) public void testRedisClusterMaxRedirections(){
Set<HostAndPort> jedisClusterNode=new HashSet<HostAndPort>();
jedisClusterNode.add(new HostAndPort("127.0.0.1",7379));
JedisCluster jc=new JedisCluster(jedisClusterNode);
int slot51=JedisClusterCRC16.getSlot("51");
node2.clusterSetSlotMigrating(slot51,JedisClusterTestUtil.getNodeId(node3.clusterNodes()));
jc.set("51","foo");
}
@Test public void testClusterCountKeysInSlot(){
Set<HostAndPort> jedisClusterNode=new HashSet<HostAndPort>();
jedisClusterNode.add(new HostAndPort(nodeInfo1.getHost(),nodeInfo1.getPort()));
JedisCluster jc=new JedisCluster(jedisClusterNode);
for (int index=0; index < 5; index++) {
jc.set("foo{bar}" + index,"hello");
}
int slot=JedisClusterCRC16.getSlot("foo{bar}");
assertEquals(5,node1.clusterCountKeysInSlot(slot).intValue());
}
private void setSuperConnectionHandler(JedisClusterConnectionHandler handler){
try {
Field connectionHandlerField=JedisCluster.class.getDeclaredField("connectionHandler");
connectionHandlerField.setAccessible(true);
connectionHandlerField.set(this,handler);
}
catch ( Exception e) {
e.printStackTrace();
}
}
/**
* Store a job in Redis
* @param jobDetail the {@link JobDetail} object to be stored
* @param replaceExisting if true, any existing job with the same group and name as the given job will be overwritten
* @param jedis a thread-safe Redis connection
* @throws ObjectAlreadyExistsException
*/
@Override @SuppressWarnings("unchecked") public void storeJob(JobDetail jobDetail,boolean replaceExisting,JedisCluster jedis) throws ObjectAlreadyExistsException {
final String jobHashKey=redisSchema.jobHashKey(jobDetail.getKey());
final String jobDataMapHashKey=redisSchema.jobDataMapHashKey(jobDetail.getKey());
final String jobGroupSetKey=redisSchema.jobGroupSetKey(jobDetail.getKey());
if (!replaceExisting && jedis.exists(jobHashKey)) {
throw new ObjectAlreadyExistsException(jobDetail);
}
jedis.hmset(jobHashKey,(Map<String,String>)mapper.convertValue(jobDetail,new TypeReference<HashMap<String,String>>(){
}
));
if (jobDetail.getJobDataMap() != null && !jobDetail.getJobDataMap().isEmpty()) {
jedis.hmset(jobDataMapHashKey,getStringDataMap(jobDetail.getJobDataMap()));
}
jedis.sadd(redisSchema.jobsSet(),jobHashKey);
jedis.sadd(redisSchema.jobGroupsSet(),jobGroupSetKey);
jedis.sadd(jobGroupSetKey,jobHashKey);
}
/**
* Remove the given job from Redis
* @param jobKey the job to be removed
* @param jedis a thread-safe Redis connection
* @return true if the job was removed; false if it did not exist
*/
@Override public boolean removeJob(JobKey jobKey,JedisCluster jedis) throws JobPersistenceException {
final String jobHashKey=redisSchema.jobHashKey(jobKey);
final String jobDataMapHashKey=redisSchema.jobDataMapHashKey(jobKey);
final String jobGroupSetKey=redisSchema.jobGroupSetKey(jobKey);
final String jobTriggerSetKey=redisSchema.jobTriggersSetKey(jobKey);
Long delJobHashKeyResponse=jedis.del(jobHashKey);
jedis.del(jobDataMapHashKey);
jedis.srem(redisSchema.jobsSet(),jobHashKey);
jedis.srem(jobGroupSetKey,jobHashKey);
Set<String> jobTriggerSetResponse=jedis.smembers(jobTriggerSetKey);
jedis.del(jobTriggerSetKey);
Long jobGroupSetSizeResponse=jedis.scard(jobGroupSetKey);
if (jobGroupSetSizeResponse == 0) {
jedis.srem(redisSchema.jobGroupsSet(),jobGroupSetKey);
}
for ( String triggerHashKey : jobTriggerSetResponse) {
final TriggerKey triggerKey=redisSchema.triggerKey(triggerHashKey);
final String triggerGroupSetKey=redisSchema.triggerGroupSetKey(triggerKey);
unsetTriggerState(triggerHashKey,jedis);
jedis.srem(redisSchema.triggersSet(),triggerHashKey);
jedis.srem(redisSchema.triggerGroupsSet(),triggerGroupSetKey);
jedis.srem(triggerGroupSetKey,triggerHashKey);
jedis.del(triggerHashKey);
}
return delJobHashKeyResponse == 1;
}
/**
* Remove (delete) the <code> {@link Trigger}</code> with the given key.
* @param triggerKey the key of the trigger to be removed
* @param removeNonDurableJob if true, the job associated with the given trigger will be removed if it is non-durableand has no other triggers
* @param jedis a thread-safe Redis connection
* @return true if the trigger was found and removed
*/
@Override protected boolean removeTrigger(TriggerKey triggerKey,boolean removeNonDurableJob,JedisCluster jedis) throws JobPersistenceException, ClassNotFoundException {
final String triggerHashKey=redisSchema.triggerHashKey(triggerKey);
final String triggerGroupSetKey=redisSchema.triggerGroupSetKey(triggerKey);
if (!jedis.exists(triggerHashKey)) {
return false;
}
OperableTrigger trigger=retrieveTrigger(triggerKey,jedis);
final String jobHashKey=redisSchema.jobHashKey(trigger.getJobKey());
final String jobTriggerSetKey=redisSchema.jobTriggersSetKey(trigger.getJobKey());
jedis.srem(redisSchema.triggersSet(),triggerHashKey);
jedis.srem(triggerGroupSetKey,triggerHashKey);
jedis.srem(jobTriggerSetKey,triggerHashKey);
if (jedis.scard(triggerGroupSetKey) == 0) {
jedis.srem(redisSchema.triggerGroupsSet(),triggerGroupSetKey);
}
if (removeNonDurableJob) {
Long jobTriggerSetKeySizeResponse=jedis.scard(jobTriggerSetKey);
Boolean jobExistsResponse=jedis.exists(jobHashKey);
if (jobTriggerSetKeySizeResponse == 0 && jobExistsResponse) {
JobDetail job=retrieveJob(trigger.getJobKey(),jedis);
if (!job.isDurable()) {
removeJob(job.getKey(),jedis);
signaler.notifySchedulerListenersJobDeleted(job.getKey());
}
}
}
if (isNullOrEmpty(trigger.getCalendarName())) {
jedis.srem(redisSchema.calendarTriggersSetKey(trigger.getCalendarName()),triggerHashKey);
}
unsetTriggerState(triggerHashKey,jedis);
jedis.del(triggerHashKey);
return true;
}
/**
* Unsets the state of the given trigger key by removing the trigger from all trigger state sets.
* @param triggerHashKey the redis key of the desired trigger hash
* @param jedis a thread-safe Redis connection
* @return true if the trigger was removed, false if the trigger was stateless
* @throws JobPersistenceException if the unset operation failed
*/
@Override public boolean unsetTriggerState(String triggerHashKey,JedisCluster jedis) throws JobPersistenceException {
boolean removed=false;
List<Long> responses=new ArrayList<>(RedisTriggerState.values().length);
for ( RedisTriggerState state : RedisTriggerState.values()) {
responses.add(jedis.zrem(redisSchema.triggerStateKey(state),triggerHashKey));
}
for ( Long response : responses) {
removed=response == 1;
if (removed) {
jedis.del(redisSchema.triggerLockKey(redisSchema.triggerKey(triggerHashKey)));
break;
}
}
return removed;
}
/**
* Store a {@link Calendar}
* @param name the name of the calendar
* @param calendar the calendar object to be stored
* @param replaceExisting if true, any existing calendar with the same name will be overwritten
* @param updateTriggers if true, any existing triggers associated with the calendar will be updated
* @param jedis a thread-safe Redis connection
* @throws JobPersistenceException
*/
@Override public void storeCalendar(String name,Calendar calendar,boolean replaceExisting,boolean updateTriggers,JedisCluster jedis) throws JobPersistenceException {
final String calendarHashKey=redisSchema.calendarHashKey(name);
if (!replaceExisting && jedis.exists(calendarHashKey)) {
throw new ObjectAlreadyExistsException(String.format("Calendar with key %s already exists.",calendarHashKey));
}
Map<String,String> calendarMap=new HashMap<>();
calendarMap.put(CALENDAR_CLASS,calendar.getClass().getName());
try {
calendarMap.put(CALENDAR_JSON,mapper.writeValueAsString(calendar));
}
catch ( JsonProcessingException e) {
throw new JobPersistenceException("Unable to serialize calendar.",e);
}
jedis.hmset(calendarHashKey,calendarMap);
jedis.sadd(redisSchema.calendarsSet(),calendarHashKey);
if (updateTriggers) {
final String calendarTriggersSetKey=redisSchema.calendarTriggersSetKey(name);
Set<String> triggerHashKeys=jedis.smembers(calendarTriggersSetKey);
for ( String triggerHashKey : triggerHashKeys) {
OperableTrigger trigger=retrieveTrigger(redisSchema.triggerKey(triggerHashKey),jedis);
long removed=jedis.zrem(redisSchema.triggerStateKey(RedisTriggerState.WAITING),triggerHashKey);
trigger.updateWithNewCalendar(calendar,misfireThreshold);
if (removed == 1) {
setTriggerState(RedisTriggerState.WAITING,(double)trigger.getNextFireTime().getTime(),triggerHashKey,jedis);
}
}
}
}
/**
* Remove (delete) the <code> {@link Calendar}</code> with the given name.
* @param calendarName the name of the calendar to be removed
* @param jedis a thread-safe Redis connection
* @return true if a calendar with the given name was found and removed
*/
@Override public boolean removeCalendar(String calendarName,JedisCluster jedis) throws JobPersistenceException {
final String calendarTriggersSetKey=redisSchema.calendarTriggersSetKey(calendarName);
if (jedis.scard(calendarTriggersSetKey) > 0) {
throw new JobPersistenceException(String.format("There are triggers pointing to calendar %s, so it cannot be removed.",calendarName));
}
final String calendarHashKey=redisSchema.calendarHashKey(calendarName);
Long deleteResponse=jedis.del(calendarHashKey);
jedis.srem(redisSchema.calendarsSet(),calendarHashKey);
return deleteResponse == 1;
}
/**
* Get the keys of all of the <code> {@link Job}</code> s that have the given group name.
* @param matcher the matcher with which to compare group names
* @param jedis a thread-safe Redis connection
* @return the set of all JobKeys which have the given group name
*/
@Override public Set<JobKey> getJobKeys(GroupMatcher<JobKey> matcher,JedisCluster jedis){
Set<JobKey> jobKeys=new HashSet<>();
if (matcher.getCompareWithOperator() == StringMatcher.StringOperatorName.EQUALS) {
final String jobGroupSetKey=redisSchema.jobGroupSetKey(new JobKey("",matcher.getCompareToValue()));
final Set<String> jobs=jedis.smembers(jobGroupSetKey);
if (jobs != null) {
for ( final String job : jobs) {
jobKeys.add(redisSchema.jobKey(job));
}
}
}
else {
List<Set<String>> jobGroups=new ArrayList<>();
for ( final String jobGroupSetKey : jedis.smembers(redisSchema.jobGroupsSet())) {
if (matcher.getCompareWithOperator().evaluate(redisSchema.jobGroup(jobGroupSetKey),matcher.getCompareToValue())) {
jobGroups.add(jedis.smembers(jobGroupSetKey));
}
}
for ( Set<String> jobGroup : jobGroups) {
if (jobGroup != null) {
for ( final String job : jobGroup) {
jobKeys.add(redisSchema.jobKey(job));
}
}
}
}
return jobKeys;
}