CacheUtil (IBM FHIR Server)

java.lang.Object
- com.ibm.fhir.persistence.jdbc.util.CacheUtil

```
public class CacheUtil
extends Object
```
Encapsulates a group of utility methods for managing and diagnosing the in-memory caches used by the JDBC PL.

Field Summary

Fields
Modifier and Type Field Description

protected static String NEWLINE

Constructor Summary

Constructors
Constructor Description

CacheUtil()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static String`	`dumpCacheContents(String cacheName, ConcurrentHashMap<String,ConcurrentHashMap<String,Integer>> mapOfMaps)`	Takes the contents of one of the JDBC PL caches and represents the contents in a format suitable for logging.
`static String`	`reportCacheDiscrepancies(String cacheName, ConcurrentHashMap<String,Integer> cachedMap, Map<String,Integer> dbMap)`	Reports on content discrepancies a JDBC PL cache and DB data that backs it.

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - NEWLINE
```
protected static final String NEWLINE
```
- Constructor Detail
  - CacheUtil
```
public CacheUtil()
```
- Method Detail
  - dumpCacheContents
```
public static String dumpCacheContents(String cacheName,
                                       ConcurrentHashMap<String,ConcurrentHashMap<String,Integer>> mapOfMaps)
```
    Takes the contents of one of the JDBC PL caches and represents the contents in a format suitable for logging.
    
    Parameters:
    
    cacheName - - The name of the JDBC PL cache to be dumped.
    
    mapOfMaps - - The contents of the multi-datastore cache.
    
    Returns:
    
    String - A formatted representation of the cache contents.
  - reportCacheDiscrepancies
```
public static String reportCacheDiscrepancies(String cacheName,
                                              ConcurrentHashMap<String,Integer> cachedMap,
                                              Map<String,Integer> dbMap)
```
    Reports on content discrepancies a JDBC PL cache and DB data that backs it.
    
    Parameters:
    
    cacheName - - The name of the JDBC PL cache to be examined.
    
    cachedMap - - The contents of the cache for a single tenantid/datastoreid combination.
    
    dbMap - - The contents of the DB table that back the passed cachedMap.
    
    Returns:
    
    String - A report of the discrepancies between the passed maps.