private boolean resourceIsExpirable(RepoResource resource, HttpRepo repo) {
// If the file is expirable then the expirable mechanism is responsible to update the file and
// the properties
String path = resource.getRepoPath().getPath();
CacheExpiry cacheExpiry = ContextHelper.get().beanForType(CacheExpiry.class);
return cacheExpiry.isExpirable(repo.getLocalCacheRepo(), path);
}
/**
* Performs local properties update
*
* @param resource
* @return success/failure
*/
private boolean doPull(RepoResource resource) {
log.debug("Downloading properties for artifact {}", resource);
String repoKey = StringUtils.replaceLast(resource.getRepoPath().getRepoKey(), "-cache", "");
HttpRepo repo = (HttpRepo) repositoryService.remoteRepositoryByKey(repoKey);
// If file doesn't exist then do mot update properties since it will be updated during file
// download
if (!repositoryService.exists(resource.getRepoPath())) {
return false;
}
// If properties not expire the return false, no need to get properties drom the remote repo
if (repo == null
|| resourceIsExpirable(resource, repo)
|| !isPropertiesExpired(resource, repo)) {
return false;
}
String remotePath = repo.getUrl() + "/" + resource.getRepoPath().getPath() + ":properties";
HttpGet getMethod = new HttpGet(HttpUtils.encodeQuery(remotePath));
try {
CloseableHttpResponse getResponse = repo.executeMethod(getMethod);
boolean ok = HttpStatus.SC_OK == getResponse.getStatusLine().getStatusCode();
boolean notFound = HttpStatus.SC_NOT_FOUND == getResponse.getStatusLine().getStatusCode();
if (ok || notFound) {
InputStream stream = getResponse.getEntity().getContent();
Properties properties = (Properties) InfoFactoryHolder.get().createProperties();
if (ok && stream != null) {
RepoRequests.logToContext("Received remote property content");
Properties remoteProperties =
(Properties) InfoFactoryHolder.get().getFileSystemXStream().fromXML(stream);
for (String remotePropertyKey : remoteProperties.keySet()) {
Set<String> values = remoteProperties.get(remotePropertyKey);
RepoRequests.logToContext(
"Found remote property key '{}' with values '%s'", remotePropertyKey, values);
if (!remotePropertyKey.startsWith(ReplicationAddon.PROP_REPLICATION_PREFIX)) {
properties.putAll(remotePropertyKey, values);
}
}
}
updateRemoteProperties(resource, properties);
}
repositoryService.unexpireIfExists(
repo.getLocalCacheRepo(), resource.getRepoPath().getPath());
} catch (IOException e) {
log.debug("Cannot update remote properties", e);
return false;
}
return true;
}
/**
* Checks whether given resource's properties cache has expired
*
* @param resource - repo resource
* @param repo - http repo
* @return yes/no
*/
private boolean isPropertiesExpired(RepoResource resource, HttpRepo repo) {
RepoPath repoPath = resource.getRepoPath();
long lastUpdated = repositoryService.getFileInfo(repoPath).getLastUpdated();
long cacheAge = System.currentTimeMillis() - lastUpdated;
long retrievalCachePeriodMillis = repo.getRetrievalCachePeriodSecs() * 1000L;
// If cache age is less than retrieval cache period then do not update properties.
if (cacheAge < retrievalCachePeriodMillis) {
return false;
}
return true;
}