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|
/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.sdc.be.model.cache;
import fj.data.Either;
import org.apache.commons.lang3.tuple.ImmutablePair;
import org.apache.commons.lang3.tuple.ImmutableTriple;
import org.openecomp.sdc.be.config.BeEcompErrorManager;
import org.openecomp.sdc.be.config.BeEcompErrorManager.ErrorSeverity;
import org.openecomp.sdc.be.config.Configuration;
import org.openecomp.sdc.be.config.Configuration.ApplicationL1CacheCatalogInfo;
import org.openecomp.sdc.be.config.Configuration.ApplicationL2CacheConfig;
import org.openecomp.sdc.be.config.ConfigurationManager;
import org.openecomp.sdc.be.dao.api.ActionStatus;
import org.openecomp.sdc.be.dao.cassandra.CassandraOperationStatus;
import org.openecomp.sdc.be.dao.cassandra.ComponentCassandraDao;
import org.openecomp.sdc.be.datatypes.components.ResourceMetadataDataDefinition;
import org.openecomp.sdc.be.datatypes.enums.ComponentTypeEnum;
import org.openecomp.sdc.be.datatypes.enums.NodeTypeEnum;
import org.openecomp.sdc.be.datatypes.enums.ResourceTypeEnum;
import org.openecomp.sdc.be.model.*;
import org.openecomp.sdc.be.model.jsonjanusgraph.operations.ToscaOperationFacade;
import org.openecomp.sdc.be.resources.data.ComponentCacheData;
import org.openecomp.sdc.common.log.wrappers.Logger;
import org.openecomp.sdc.common.util.SerializationUtils;
import org.openecomp.sdc.common.util.ZipUtil;
import org.springframework.beans.factory.annotation.Autowired;
import javax.annotation.PostConstruct;
import java.io.IOException;
import java.util.*;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.List;
import java.util.Map;
import java.util.Set;
@org.springframework.stereotype.Component("component-cache")
public class ComponentCache {
private static final String COMPONENT_CACHE_IS_DISABLED = "Component Cache is disabled";
private static final Logger log = Logger.getLogger(ComponentCache.class);
@Autowired
ComponentCassandraDao componentCassandraDao;
@Autowired
ToscaOperationFacade toscaOperationFacade;
private Map<ComponentTypeEnum, Map<String, Component>> catalogInMemoryCache = new HashMap<>();
private final ReentrantReadWriteLock rwCatalogLock = new ReentrantReadWriteLock();
private final Lock rCatalogLock = rwCatalogLock.readLock();
private final Lock wCatalogLock = rwCatalogLock.writeLock();
boolean enabled = true;
int catalogInMemorySizePerResource = 300;
int catalogInMemorySizePerService = 200;
int catalogInMemorySizePerProduct = 100;
boolean catalogInMemoryEnabled = true;
Map<ComponentTypeEnum, Integer> limitMemoryCatalogSizePerType = new HashMap<>();
@PostConstruct
public void init() {
Configuration configuration = ConfigurationManager.getConfigurationManager().getConfiguration();
if (configuration != null) {
ApplicationL2CacheConfig applicationL2Cache = configuration.getApplicationL2Cache();
if (applicationL2Cache != null) {
this.enabled = applicationL2Cache.isEnabled();
ApplicationL1CacheCatalogInfo catalog = applicationL2Cache.getCatalogL1Cache();
if (catalog != null) {
catalogInMemoryEnabled = catalog.getEnabled();
catalogInMemorySizePerResource = catalog.getResourcesSizeInCache();
catalogInMemorySizePerService = catalog.getServicesSizeInCache();
catalogInMemorySizePerProduct = catalog.getProductsSizeInCache();
}
}
}
ComponentTypeEnum[] typesForCache = { ComponentTypeEnum.RESOURCE, ComponentTypeEnum.SERVICE,
ComponentTypeEnum.PRODUCT };
for (ComponentTypeEnum typeEnum : typesForCache) {
Map<String, Component> map = new HashMap<>();
catalogInMemoryCache.put(typeEnum, map);
}
limitMemoryCatalogSizePerType.put(ComponentTypeEnum.RESOURCE, catalogInMemorySizePerResource);
limitMemoryCatalogSizePerType.put(ComponentTypeEnum.SERVICE, catalogInMemorySizePerService);
limitMemoryCatalogSizePerType.put(ComponentTypeEnum.PRODUCT, catalogInMemorySizePerProduct);
}
public boolean isEnabled() {
return enabled;
}
public void setEnabled(boolean enabled) {
this.enabled = enabled;
}
public Either<Component, ActionStatus> getComponent(String componentUid, Long lastModificationTime,
Function<Component, Component> filterFieldsFunc) {
Either<ImmutablePair<Component, ComponentCacheData>, ActionStatus> componentFromCache = getComponentFromCache(
componentUid, lastModificationTime, filterFieldsFunc);
if (componentFromCache.isRight()) {
return Either.right(componentFromCache.right().value());
}
return Either.left(componentFromCache.left().value().left);
}
public Either<List<ComponentCacheData>, ActionStatus> getAllComponentIdTimeAndType() {
if (!isEnabled()) {
return Either.right(ActionStatus.NOT_ALLOWED);
}
return componentCassandraDao
.getAllComponentIdTimeAndType();
}
/**
* get components for catalog
*
* @param components
* @param componentTypeEnum
* @return
*/
@Deprecated
public Either<ImmutableTriple<List<Component>, List<Component>, Set<String>>, ActionStatus> getComponentsForCatalog(
Set<String> components, ComponentTypeEnum componentTypeEnum) {
if (!isEnabled()) {
log.debug("In getComponentsForCatalog for type {}. Cache is disabled.",
componentTypeEnum.name().toLowerCase());
return Either.right(ActionStatus.NOT_ALLOWED);
}
log.debug("In getComponentsForCatalog for type {}", componentTypeEnum.name().toLowerCase());
Function<List<Component>, List<Component>> filterFieldsFunc = this::filterForCatalog;
Set<String> leftComponentsForSearch = new HashSet<>();
leftComponentsForSearch.addAll(components);
// get components from inmemory cache
List<Component> componentsFromMemory = null;
if (catalogInMemoryEnabled) {
componentsFromMemory = getDataFromInMemoryCache(components, componentTypeEnum);
log.debug("The number of components of type {} fetched from memory is {}",
componentTypeEnum.name().toLowerCase(),
componentsFromMemory == null ? 0 : componentsFromMemory.size());
if (componentsFromMemory != null) {
componentsFromMemory.forEach(p -> leftComponentsForSearch.remove(p.getUniqueId()));
}
} else {
log.debug("Catalog InMemory cache is disabled");
}
log.debug("Number of components from type {} needed to fetch is {}", componentTypeEnum.name().toLowerCase(),
leftComponentsForSearch.size());
// get components from cassandra cache and filter each component
Either<ImmutableTriple<List<Component>, List<Component>, Set<String>>, ActionStatus> result = getComponents(
leftComponentsForSearch, filterFieldsFunc);
if (result.isLeft()) {
// add inmemory components to the valid components(not dirty)
List<Component> foundComponents = result.left().value().getLeft();
if (componentsFromMemory != null) {
foundComponents.addAll(componentsFromMemory);
}
if (catalogInMemoryEnabled) {
updateCatalogInMemoryCacheWithCertified(foundComponents, componentTypeEnum);
}
}
return result;
}
/**
* @param foundComponents
* @param componentTypeEnum
*/
private void updateCatalogInMemoryCacheWithCertified(List<Component> foundComponents,
ComponentTypeEnum componentTypeEnum) {
try {
wCatalogLock.lock();
long start = System.currentTimeMillis();
Map<String, Component> map = catalogInMemoryCache.get(componentTypeEnum);
int mapSizeBefore = map.size();
map.clear();
Map<String, Component> collect = foundComponents.stream()
.filter(p -> p.getLifecycleState() == LifecycleStateEnum.CERTIFIED)
.limit(limitMemoryCatalogSizePerType.get(componentTypeEnum))
.collect(Collectors.toMap(Component::getUniqueId, p -> p));
map.putAll(collect);
log.debug(
"Size of in memory cache for catalog {}(certified only): Before {}, After {}. Replacement Time is {} ms.",
componentTypeEnum.name().toLowerCase(), mapSizeBefore, map.size(),
System.currentTimeMillis() - start);
} finally {
wCatalogLock.unlock();
}
}
private List<Component> getDataFromInMemoryCache(Set<String> components, ComponentTypeEnum componentTypeEnum) {
List<Component> foundComponents = new ArrayList<>();
try {
rCatalogLock.lock();
Map<String, Component> map = catalogInMemoryCache.get(componentTypeEnum);
for (String compUid : components) {
Component component = map.get(compUid);
if (component != null) {
foundComponents.add(component);
}
}
} finally {
rCatalogLock.unlock();
}
return foundComponents;
}
/**
*
* get full components from cassandra. On each component apply filter
* function in order to remove unused members
*
* @param components
* @param filterFieldsFunc
* @return <found components, found dirty components, not found components
* list> or Error
*/
public Either<ImmutableTriple<List<Component>, List<Component>, Set<String>>, ActionStatus> getComponents(
Set<String> components, Function<List<Component>, List<Component>> filterFieldsFunc) {
if (!isEnabled()) {
log.debug(COMPONENT_CACHE_IS_DISABLED);
return Either.right(ActionStatus.NOT_ALLOWED);
}
Either<ImmutableTriple<List<Component>, List<Component>, Set<String>>, ActionStatus> componentsFull = getComponentsFull(
components);
if (componentsFull.isRight()) {
return Either.right(componentsFull.right().value());
}
ImmutableTriple<List<Component>, List<Component>, Set<String>> immutableTriple = componentsFull.left().value();
List<Component> foundResources = immutableTriple.left;
List<Component> foundDirtyResources = immutableTriple.middle;
Set<String> notFoundResources = immutableTriple.right;
List<Component> filterdFoundResources = filterFieldsFunc.apply(foundResources);
List<Component> filterdFoundDirtyResources = filterFieldsFunc.apply(foundDirtyResources);
ImmutableTriple<List<Component>, List<Component>, Set<String>> result = new ImmutableTriple<>(
filterdFoundResources, filterdFoundDirtyResources, notFoundResources);
return Either.left(result);
}
public Either<ImmutableTriple<List<Component>, List<Component>, Set<String>>, ActionStatus> getComponentsForLeftPanel(
ComponentTypeEnum componentTypeEnum, String internalComponentType, Set<String> filteredResources) {
log.debug("In getComponentsForLeftPanel componentTypeEnum = {}, internalComponentType = {}",
componentTypeEnum, internalComponentType);
Function<List<Component>, List<Component>> filterFieldsFunc = this::filterForLeftPanel;
return getComponents(filteredResources, filterFieldsFunc);
}
private List<Component> filterForLeftPanel(List<Component> components) {
List<Component> result = new ArrayList<>();
if (components != null) {
components.forEach(p -> result.add(filterFieldsForLeftPanel(p)));
}
return result;
}
private List<Component> filterForCatalog(List<Component> components) {
List<Component> result = new ArrayList<>();
if (components != null) {
components.forEach(p -> result.add(filterFieldsForCatalog(p)));
}
return result;
}
private Component filterFieldsForLeftPanel(Component component) {
Component result = null;
ComponentTypeEnum componentTypeEnum = component.getComponentType();
switch (componentTypeEnum) {
case RESOURCE:
result = new Resource();
copyFieldsForLeftPanel(component, result);
break;
case SERVICE:
result = new Service();
copyFieldsForLeftPanel(component, result);
break;
default:
break;
}
return result;
}
private Component filterFieldsForCatalog(Component component) {
Component result = null;
ComponentTypeEnum componentTypeEnum = component.getComponentType();
switch (componentTypeEnum) {
case RESOURCE:
result = new Resource();
copyFieldsForCatalog(component, result);
break;
case SERVICE:
result = new Service();
copyFieldsForCatalog(component, result);
break;
case PRODUCT:
result = new Product();
copyFieldsForCatalog(component, result);
break;
default:
break;
}
return result;
}
/**
* Copy relevant fields to the filtered component for left panel
*
* @param component
* @param filteredComponent
*/
private void copyFieldsForLeftPanel(Component component, Component filteredComponent) {
ComponentTypeEnum componentTypeEnum = component.getComponentType();
filteredComponent.setCategories(component.getCategories());
filteredComponent.setComponentType(component.getComponentType());
if (ComponentTypeEnum.RESOURCE.equals(component.getComponentType())
&& ResourceTypeEnum.VL.equals(((ResourceMetadataDataDefinition) component
.getComponentMetadataDefinition().getMetadataDataDefinition()).getResourceType())) {
filteredComponent.setCapabilities(component.getCapabilities());
filteredComponent.setRequirements(component.getRequirements());
}
filteredComponent.setVersion(component.getVersion());
filteredComponent.setDescription(component.getDescription());
filteredComponent.setUniqueId(component.getUniqueId());
filteredComponent.setIcon(component.getIcon());
filteredComponent.setTags(component.getTags());
filteredComponent.setLifecycleState(component.getLifecycleState());
filteredComponent.setInvariantUUID(component.getInvariantUUID());
filteredComponent.setUUID(component.getUUID());
filteredComponent.setSystemName(component.getSystemName());
filteredComponent.setName(component.getName());
if (componentTypeEnum == ComponentTypeEnum.RESOURCE) {
Resource resource = (Resource) component;
Resource filteredResource = (Resource) filteredComponent;
filteredResource.setToscaResourceName(resource.getToscaResourceName());
filteredResource.setResourceType(resource.getResourceType());
}
}
private void copyFieldsForCatalog(Component component, Component filteredComponent) {
ComponentTypeEnum componentTypeEnum = component.getComponentType();
filteredComponent.setCategories(component.getCategories());
filteredComponent.setComponentType(component.getComponentType());
filteredComponent.setVersion(component.getVersion());
filteredComponent.setDescription(component.getDescription());
filteredComponent.setUniqueId(component.getUniqueId());
filteredComponent.setIcon(component.getIcon());
filteredComponent.setTags(component.getTags());
filteredComponent.setLifecycleState(component.getLifecycleState());
filteredComponent.setSystemName(component.getSystemName());
filteredComponent.setName(component.getName());
filteredComponent.setLastUpdateDate(component.getLastUpdateDate());
if (componentTypeEnum == ComponentTypeEnum.RESOURCE) {
Resource resource = (Resource) component;
Resource filteredResource = (Resource) filteredComponent;
filteredResource.setToscaResourceName(resource.getToscaResourceName());
filteredResource.setResourceType(resource.getResourceType());
} else if (componentTypeEnum == ComponentTypeEnum.SERVICE) {
Service service = (Service) component;
Service filteredService = (Service) filteredComponent;
filteredService.setDistributionStatus(service.getDistributionStatus());
}
}
/**
* get components from cache of a given list ou unique ids.
*
* for each component data from cassandra, unzip the data if needed and
* deserialize the unzipped data to java object(Component).
*
* @param filteredResources
* @return ImmutableTripple or ActionStatus. | |-- components |-- dirty
* components - components with dirty flag = true. |-- set of non
* cached components
*
*/
private Either<ImmutableTriple<List<Component>, List<Component>, Set<String>>, ActionStatus> getComponentsFull(
Set<String> filteredResources) {
if (!isEnabled()) {
log.debug(COMPONENT_CACHE_IS_DISABLED);
return Either.right(ActionStatus.NOT_ALLOWED);
}
List<Component> foundResources = new LinkedList<>();
List<Component> foundDirtyResources = new LinkedList<>();
Set<String> notFoundResources = new HashSet<>();
ImmutableTriple<List<Component>, List<Component>, Set<String>> result = new ImmutableTriple<>(
foundResources, foundDirtyResources, notFoundResources);
long cassandraFetchStart = System.currentTimeMillis();
List<String> uidsList = new ArrayList<>();
uidsList.addAll(filteredResources);
Either<List<ComponentCacheData>, ActionStatus> componentsFromCache = componentCassandraDao
.getComponents(uidsList);
long cassandraFetchEnd = System.currentTimeMillis();
log.debug("Fetch time from cassandara of all components took {} ms",
(cassandraFetchEnd - cassandraFetchStart));
if (componentsFromCache.isRight()) {
BeEcompErrorManager.getInstance().logInternalFlowError("FetchFromCache",
"Failed to fetch components from cache", ErrorSeverity.ERROR);
return Either.right(componentsFromCache.right().value());
}
List<ComponentCacheData> list = componentsFromCache.left().value();
log.debug("Number of components fetched from cassandra is {}", (list == null ? 0 : list.size()));
if (list != null && !list.isEmpty()) {
List<ComponentCacheData> filteredData = list.stream().filter(p -> filteredResources.contains(p.getId()))
.collect(Collectors.toList());
log.debug("Number of components filterd is {}", filteredData == null ? 0 : filteredData.size());
if (filteredData != null) {
long desStart = System.currentTimeMillis();
for (ComponentCacheData componentCacheData : filteredData) {
log.debug("Process uid {} from cache", componentCacheData.getId());
String compUid = componentCacheData.getId();
Either<? extends Component, Boolean> deserializeExt = convertComponentCacheToComponent(
componentCacheData);
if (deserializeExt.isLeft()) {
Component component = deserializeExt.left().value();
if (!componentCacheData.getIsDirty()) {
foundResources.add(component);
} else {
foundDirtyResources.add(component);
}
} else {
notFoundResources.add(compUid);
}
}
long desEnd = System.currentTimeMillis();
log.debug("Deserialization and unzip of {} components took {} ms", filteredData.size(),
(desEnd - desStart));
}
}
List<String> foundResourcesUid = foundResources.stream().map(Component::getUniqueId).collect(Collectors.toList());
List<String> foundDirtyResourcesUid = foundDirtyResources.stream().map(Component::getUniqueId)
.collect(Collectors.toList());
log.debug("Number of processed components from cache is {}",
(foundResourcesUid.size() + foundDirtyResourcesUid.size()));
Set<String> notCachedResources = filteredResources.stream()
.filter(p -> !foundResourcesUid.contains(p) && !foundDirtyResourcesUid.contains(p))
.collect(Collectors.toSet());
notFoundResources.addAll(notCachedResources);
if (log.isDebugEnabled()) {
log.debug("Number of components fetched is {}", foundResources.size());
log.debug("Number of components fetched dirty is {}", foundDirtyResources.size());
log.debug("Number of components non cached is {}", notCachedResources.size());
}
return Either.left(result);
}
private Either<? extends Component, Boolean> convertComponentCacheToComponent(
ComponentCacheData componentCacheData) {
String compUid = componentCacheData.getId();
byte[] dataAsArray = componentCacheData.getDataAsArray();
if (componentCacheData.getIsZipped()) {
long startUnzip = System.nanoTime();
dataAsArray = ZipUtil.unzip(dataAsArray);
long endUnzip = System.nanoTime();
log.trace("Unzip component {} took {} microsecond", compUid, (endUnzip - startUnzip) / 1000);
}
long startDes = System.nanoTime();
Either<? extends Component, Boolean> deserializeExt = deserializeComponent(componentCacheData, dataAsArray);
long endDes = System.nanoTime();
log.trace("Deserialize component {} took {} microsecond", compUid, (endDes - startDes) / 1000);
return deserializeExt;
}
private Either<? extends Component, Boolean> deserializeComponent(ComponentCacheData componentCacheData,
byte[] dataAsArray) {
String type = componentCacheData.getType();
NodeTypeEnum typeEnum = NodeTypeEnum.getByNameIgnoreCase(type);
Either<? extends Component, Boolean> deserializeExt = Either.right(false);
switch (typeEnum) {
case Resource:
deserializeExt = SerializationUtils.deserializeExt(dataAsArray, Resource.class, componentCacheData.getId());
break;
case Service:
deserializeExt = SerializationUtils.deserializeExt(dataAsArray, Service.class, componentCacheData.getId());
break;
case Product:
deserializeExt = SerializationUtils.deserializeExt(dataAsArray, Product.class, componentCacheData.getId());
break;
default:
break;
}
return deserializeExt;
}
public Either<Component, ActionStatus> getComponent(String componentUid) {
return getComponent(componentUid, null, Function.identity());
}
private boolean saveComponent(String componentUid, Long lastModificationTime, NodeTypeEnum nodeTypeEnum,
Component component) {
log.trace("Going to save component {} of type {} in cache", componentUid, nodeTypeEnum.name().toLowerCase());
boolean result = false;
Either<byte[], Boolean> serializeExt = SerializationUtils.serializeExt(component);
if (serializeExt.isLeft()) {
byte[] serializedData = serializeExt.left().value();
byte[] zipBytes;
try {
zipBytes = ZipUtil.zipBytes(serializedData);
ComponentCacheData componentCacheData = new ComponentCacheData();
componentCacheData.setDataAsArray(zipBytes);
componentCacheData.setIsZipped(true);
componentCacheData.setId(componentUid);
componentCacheData.setModificationTime(new Date(lastModificationTime));
componentCacheData.setType(component.getComponentType().name().toLowerCase());
CassandraOperationStatus status = componentCassandraDao.saveComponent(componentCacheData);
if (status == CassandraOperationStatus.OK) {
result = true;
}
} catch (IOException e) {
log.debug("Failed to prepare component {} of type {} for cache", componentUid,
nodeTypeEnum.name().toLowerCase());
if (log.isTraceEnabled()) {
log.trace("Failed to prepare component {} of type {} for cache",componentUid,nodeTypeEnum.name().toLowerCase());
}
}
} else {
log.debug("Failed to serialize component {} of type {} for cache", componentUid,
nodeTypeEnum.name().toLowerCase());
}
return result;
}
public boolean setComponent(Component component, NodeTypeEnum nodeTypeEnum) {
boolean result = false;
if (!isEnabled()) {
log.debug(COMPONENT_CACHE_IS_DISABLED);
return false;
}
String componentUid = component.getUniqueId();
Long lastUpdateDate = component.getLastUpdateDate();
result = saveComponent(componentUid, lastUpdateDate, nodeTypeEnum, component);
return result;
}
/**
* get components from cache of a given list ou unique ids.
*
* for each component data from cassandra, unzip the data if needed and
* deserialize the unzipped data to java object(Component).
*
* @param filteredResources
* @return ImmutableTripple or ActionStatus. | |-- components |-- set of non
* cached components
*
*/
private Either<ImmutablePair<List<Component>, Set<String>>, ActionStatus> getComponentsFull(
Map<String, Long> filteredResources) {
if (!isEnabled()) {
log.debug(COMPONENT_CACHE_IS_DISABLED);
return Either.right(ActionStatus.NOT_ALLOWED);
}
List<Component> foundResources = new LinkedList<>();
Set<String> notFoundResources = new HashSet<>();
ImmutablePair<List<Component>, Set<String>> result = new ImmutablePair<>(
foundResources, notFoundResources);
long cassandraFetchStart = System.currentTimeMillis();
Either<ImmutablePair<List<ComponentCacheData>, Set<String>>, ActionStatus> componentsFromCache = componentCassandraDao
.getComponents(filteredResources);
long cassandraFetchEnd = System.currentTimeMillis();
log.debug("Fetch time from cassandara of all components took {} ms",
(cassandraFetchEnd - cassandraFetchStart));
if (componentsFromCache.isRight()) {
BeEcompErrorManager.getInstance().logInternalFlowError("FetchFromCache",
"Failed to fetch components from cache", ErrorSeverity.ERROR);
return Either.right(componentsFromCache.right().value());
}
ImmutablePair<List<ComponentCacheData>, Set<String>> immutablePair = componentsFromCache.left().value();
List<ComponentCacheData> list = immutablePair.getLeft();
log.debug("Number of components fetched from cassandra is {}", (list == null ? 0 : list.size()));
if (list != null && !list.isEmpty()) {
log.debug("Number of components filterd is {}", list == null ? 0 : list.size());
if (list != null) {
long desStart = System.currentTimeMillis();
for (ComponentCacheData componentCacheData : list) {
log.debug("Process uid {} from cache", componentCacheData.getId());
String compUid = componentCacheData.getId();
Either<? extends Component, Boolean> deserializeExt = convertComponentCacheToComponent(
componentCacheData);
if (deserializeExt.isLeft()) {
Component component = deserializeExt.left().value();
foundResources.add(component);
} else {
notFoundResources.add(compUid);
}
}
long desEnd = System.currentTimeMillis();
log.debug("Deserialization and unzip of {} components took {} ms", list.size(), (desEnd - desStart));
}
}
log.debug("Number of processed components from cache is {}", foundResources.size());
Set<String> notFoundInCache = immutablePair.getRight();
notFoundResources.addAll(notFoundInCache);
if (log.isDebugEnabled()) {
log.debug("Number of components fetched is {}", foundResources.size());
log.debug("Number of components non cached is {}", notFoundResources.size());
}
return Either.left(result);
}
/**
* get components for catalog
*
* @param components
* @param componentTypeEnum
* @return
*/
public Either<ImmutablePair<List<Component>, Set<String>>, ActionStatus> getComponentsForCatalog(
Map<String, Long> components, ComponentTypeEnum componentTypeEnum) {
if (!isEnabled()) {
log.debug("In getComponentsForCatalog for type {}. Cache is disabled.",
componentTypeEnum.name().toLowerCase());
return Either.right(ActionStatus.NOT_ALLOWED);
}
log.debug("In getComponentsForCatalog for type {}", componentTypeEnum.name().toLowerCase());
Function<List<Component>, List<Component>> filterFieldsFunc = this::filterForCatalog;
Map<String, Long> leftComponentsForSearch = new HashMap<>();
leftComponentsForSearch.putAll(components);
// get components from inmemory cache
List<Component> componentsFromMemory = null;
if (catalogInMemoryEnabled) {
componentsFromMemory = getDataFromInMemoryCache(components.keySet(), componentTypeEnum);
log.debug("The number of components of type {} fetched from memory is {}",
componentTypeEnum.name().toLowerCase(),
componentsFromMemory == null ? 0 : componentsFromMemory.size());
if (componentsFromMemory != null) {
List<String> ignoredComponents = new ArrayList<>();
for (Component componentFromMem : componentsFromMemory) {
if (componentFromMem.getLastUpdateDate().longValue() != components
.get(componentFromMem.getUniqueId()).longValue()) {
// Ignore the component from memory
ignoredComponents.add(componentFromMem.getUniqueId());
}
}
log.debug("Number of components from type {} ignored from memory cache is {}",
componentTypeEnum.name().toLowerCase(), ignoredComponents.size());
// remove from memory result the components which are not valid
componentsFromMemory = componentsFromMemory.stream()
.filter(p -> !ignoredComponents.contains(p.getUniqueId())).collect(Collectors.toList());
// Remove from leftComponentsForSearch the valid components from
// memory
componentsFromMemory.forEach(p -> leftComponentsForSearch.remove(p.getUniqueId()));
}
} else {
log.debug("Catalog InMemory cache is disabled");
}
log.debug("Number of components from type {} needed to fetch is {}", componentTypeEnum.name().toLowerCase(),
leftComponentsForSearch.size());
// get components from cassandra cache and filter each component
Either<ImmutablePair<List<Component>, Set<String>>, ActionStatus> result = getComponents(
leftComponentsForSearch, filterFieldsFunc);
if (result.isLeft()) {
// add inmemory components to the valid components(not dirty)
List<Component> foundComponents = result.left().value().getLeft();
if (componentsFromMemory != null) {
foundComponents.addAll(componentsFromMemory);
}
if (catalogInMemoryEnabled) {
updateCatalogInMemoryCacheWithCertified(foundComponents, componentTypeEnum);
}
}
return result;
}
/**
* @param components
* - Map of <componentUniqueId, last update date>
* @param filterFieldsFunc
* @return
*/
public Either<ImmutablePair<List<Component>, Set<String>>, ActionStatus> getComponents(Map<String, Long> components,
Function<List<Component>, List<Component>> filterFieldsFunc) {
if (!isEnabled()) {
log.debug(COMPONENT_CACHE_IS_DISABLED);
return Either.right(ActionStatus.NOT_ALLOWED);
}
Either<ImmutablePair<List<Component>, Set<String>>, ActionStatus> componentsFull = getComponentsFull(
components);
if (componentsFull.isRight()) {
return Either.right(componentsFull.right().value());
}
ImmutablePair<List<Component>, Set<String>> immutablePair = componentsFull.left().value();
List<Component> foundResources = immutablePair.left;
Set<String> notFoundResources = immutablePair.right;
List<Component> filterdFoundResources = filterFieldsFunc.apply(foundResources);
ImmutablePair<List<Component>, Set<String>> result = new ImmutablePair<>(
filterdFoundResources, notFoundResources);
return Either.left(result);
}
/**
* get the component and its modification time from cache
*
* @param componentUid
* @param filterFieldsFunc
* @return
*/
public Either<ImmutablePair<Component, Long>, ActionStatus> getComponentAndTime(String componentUid,
Function<Component, Component> filterFieldsFunc) {
Either<ImmutablePair<Component, ComponentCacheData>, ActionStatus> componentFromCache = getComponentFromCache(
componentUid, null, filterFieldsFunc);
if (componentFromCache.isRight()) {
return Either.right(componentFromCache.right().value());
}
ImmutablePair<Component, ComponentCacheData> immutablePair = componentFromCache.left().value();
ImmutablePair<Component, Long> result = new ImmutablePair<>(immutablePair.left,
immutablePair.right.getModificationTime().getTime());
return Either.left(result);
}
private Either<ImmutablePair<Component, ComponentCacheData>, ActionStatus> getComponentFromCache(
String componentUid, Long lastModificationTime, Function<Component, Component> filterFieldsFunc) {
if (!isEnabled()) {
return Either.right(ActionStatus.NOT_ALLOWED);
}
Either<ComponentCacheData, ActionStatus> componentRes = componentCassandraDao.getComponent(componentUid);
if (componentRes.isRight()) {
return Either.right(componentRes.right().value());
}
ComponentCacheData componentCacheData = componentRes.left().value();
if (lastModificationTime != null) {
long cacheCompModificationTime = componentCacheData.getModificationTime().getTime();
if (lastModificationTime != cacheCompModificationTime) {
log.debug(
"Component {} found in cache but its modification time {} does not match to the timestamp in cache {}.",
componentUid, lastModificationTime, cacheCompModificationTime);
return Either.right(ActionStatus.INVALID_CONTENT);
}
}
Either<? extends Component, Boolean> convertRes = convertComponentCacheToComponent(componentCacheData);
if (convertRes.isRight()) {
return Either.right(ActionStatus.CONVERT_COMPONENT_ERROR);
}
Component component = convertRes.left().value();
Component filteredComponent = component;
if (filterFieldsFunc != null) {
filteredComponent = filterFieldsFunc.apply(component);
}
ImmutablePair<Component, ComponentCacheData> result = new ImmutablePair<>(
filteredComponent, componentCacheData);
return Either.left(result);
}
public ActionStatus deleteComponentFromCache(String id) {
if (!isEnabled()) {
return ActionStatus.NOT_ALLOWED;
}
CassandraOperationStatus status = this.componentCassandraDao.deleteComponent(id);
if (CassandraOperationStatus.OK.equals(status)) {
return ActionStatus.OK;
} else {
log.debug("delete component failed with error {}", status);
return ActionStatus.GENERAL_ERROR;
}
}
}
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