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FileSponge
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Atomic access to data structures

This commit is contained in:
Andrea Cavalli 2021-09-17 20:42:35 +02:00
parent 8522e7a866
commit 7d8c236a8f
1 changed files with 19 additions and 13 deletions
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32
src/main/java/org/warp/filesponge/FileSponge.java
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@ -61,7 +61,7 @@ public class FileSponge implements URLsHandler {
return Mono
.<Void>fromRunnable(() -> {
synchronized (structuresLock) {
var cacheAccessClone = cacheAccess.clone();
var cacheAccessClone = this.cacheAccess.clone();
cacheAccessClone.add(urlsCache);
this.cacheAccess = cacheAccessClone;
@ -78,8 +78,9 @@ public class FileSponge implements URLsHandler {
AtomicBoolean alreadyPrintedDebug = new AtomicBoolean(false);
return Mono
.fromCallable(() -> {
List<Flux<DataBlock>> contentRequests = new ArrayList<>(cacheAccess.size());
for (URLsDiskHandler urlsHandler : cacheAccess) {
var ca = this.cacheAccess;
List<Flux<DataBlock>> contentRequests = new ArrayList<>(ca.size());
for (URLsDiskHandler urlsHandler : ca) {
contentRequests.add(urlsHandler.requestContent(url));
}
return contentRequests;
@ -93,13 +94,15 @@ public class FileSponge implements URLsHandler {
.switchIfEmpty(Mono
.fromCallable(() -> {
logger.debug("Downloading file \"{}\" content", url);
List<Flux<DataBlock>> contentRequestsAndCaching = new ArrayList<>(urlsHandlers.size());
for (URLsHandler urlsHandler : urlsHandlers) {
var uh = this.urlsHandlers;
List<Flux<DataBlock>> contentRequestsAndCaching = new ArrayList<>(uh.size());
for (URLsHandler urlsHandler : uh) {
contentRequestsAndCaching.add(urlsHandler
.requestContent(url)
.flatMapSequential(dataBlock -> {
List<Mono<Void>> cacheWriteActions = new ArrayList<>(cacheWrite.size());
for (URLsWriter urlsWriter : cacheWrite) {
var cw = this.cacheWrite;
List<Mono<Void>> cacheWriteActions = new ArrayList<>(cw.size());
for (URLsWriter urlsWriter : cw) {
cacheWriteActions.add(urlsWriter.writeContentBlock(url, dataBlock));
}
return Mono.when(cacheWriteActions).thenReturn(dataBlock);
@ -120,8 +123,9 @@ public class FileSponge implements URLsHandler {
public Mono<Metadata> requestMetadata(URL url) {
return Mono
.fromCallable(() -> {
List<Mono<Metadata>> metadataRequests = new ArrayList<>(cacheAccess.size());
for (URLsDiskHandler urlsHandler : cacheAccess) {
var ca = this.cacheAccess;
List<Mono<Metadata>> metadataRequests = new ArrayList<>(ca.size());
for (URLsDiskHandler urlsHandler : ca) {
metadataRequests.add(urlsHandler.requestMetadata(url));
}
return metadataRequests;
@ -135,13 +139,15 @@ public class FileSponge implements URLsHandler {
.switchIfEmpty(Mono
.fromCallable(() -> {
logger.debug("Downloading file \"{}\" metadata", url);
List<Mono<Metadata>> metadataRequestsAndCaching = new ArrayList<>(urlsHandlers.size());
for (URLsHandler urlsHandler : urlsHandlers) {
var uh = this.urlsHandlers;
List<Mono<Metadata>> metadataRequestsAndCaching = new ArrayList<>(uh.size());
for (URLsHandler urlsHandler : uh) {
metadataRequestsAndCaching.add(urlsHandler
.requestMetadata(url)
.flatMap(meta -> {
List<Mono<Void>> cacheWriteActions = new ArrayList<>(cacheWrite.size());
for (URLsWriter urlsWriter : cacheWrite) {
var cw = this.cacheWrite;
List<Mono<Void>> cacheWriteActions = new ArrayList<>(cw.size());
for (URLsWriter urlsWriter : cw) {
cacheWriteActions.add(urlsWriter.writeMetadata(url, meta));
}
return Mono.when(cacheWriteActions).thenReturn(meta);