nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

How to cache a rest endpoint? (Groovy Scriptrunner)

Italo Qualisoni [e-Core]

Hello!

We have a script rest endpoint that each time that it's called get an information from an external database.

We would like to cache this function since that multiple times the result query returns the same value.

Looking in the internet we have found someways with Guava framework (https://github.com/google/guava) but we would like your help to see if is there any example to this need.

What do you recommend ?

Thanks!

Accepted answers

Gregor Kasmann_Actonic

Have you tried to use build-in JIRA Cache functions? https://developer.atlassian.com/confdev/development-resources/confluence-developer-faq/how-do-i-cache-data-in-a-plugin

All comments

Gregor Kasmann_Actonic

Have you tried to use build-in JIRA Cache functions? https://developer.atlassian.com/confdev/development-resources/confluence-developer-faq/how-do-i-cache-data-in-a-plugin

Italo Qualisoni [e-Core]

Not yet, this looks promissor. I'll give it a try!

Italo Qualisoni [e-Core]

@Gregor Kasmann_Actonic,

I'm trying to to use the provided document.

It seems that each time that I call CacheManager.getCache function the cache is erased and created a new one.

I'm testing using the Script Console (feature of Scriptrunner)

import com.atlassian.cache.Cache;
import com.atlassian.cache.CacheLoader;
import com.atlassian.cache.CacheManager;
import com.atlassian.cache.CacheSettingsBuilder;
import com.atlassian.util.concurrent.NotNull;
import com.atlassian.cache.CacheSettings;
import java.util.concurrent.TimeUnit;
import com.atlassian.jira.component.ComponentAccessor;

def CacheManager cacheManager = ComponentAccessor.getComponent(CacheManager.class);

def cache = cacheManager.getCache("com.foo.test.cache",
 new ListPagesCacheLoader(),
 new CacheSettingsBuilder().expireAfterAccess(5, TimeUnit.MINUTES as TimeUnit).build());

log.error cache.getKeys()
cache.get("hi")
log.error cache.getKeys()
cache.get("hi")
log.error cache.getKeys()

public class ListPagesCacheLoader implements CacheLoader<String, String> {
@Override public String load(@NotNull String value){
 sleep(3000);
 return value;
 }
}

Italo Qualisoni [e-Core]

@Gregor Kasmann_Actonic,

It seems that the cache is being recreated each time that I call CacheManager#getCache.

We need this cache stored in disk or memory to each time that the rest endpoint be called we still have the keys into it.

Do you have any tip ?

import com.atlassian.cache.Cache;
import com.atlassian.cache.CacheLoader;
import com.atlassian.cache.CacheManager;
import com.atlassian.cache.CacheSettingsBuilder;
import com.atlassian.util.concurrent.NotNull;
import com.atlassian.cache.CacheSettings;
import java.util.concurrent.TimeUnit;
import com.atlassian.jira.component.ComponentAccessor;

def CacheManager cacheManager = ComponentAccessor.getComponent(CacheManager.class);

def cache = cacheManager.getCache("com.foo.test.cache",
 new ListPagesCacheLoader(),
 new CacheSettingsBuilder().expireAfterAccess(5, TimeUnit.MINUTES as TimeUnit).build());

log.error cache.getKeys()
cache.get("hi")
log.error cache.getKeys()
cache.get("hi")
log.error cache.getKeys()

public class ListPagesCacheLoader implements CacheLoader<String, String> {
@Override
 public String load(@NotNull String value){
 sleep(3000);
 return value;
 }
}

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