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resource-registry-query-template-client
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Backported service instance predictive URL

This commit is contained in:
Luca Frosini 2022-07-21 18:17:30 +02:00
parent f3a09871b0
commit 4ed56600d6
1 changed files with 6 additions and 79 deletions
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85
src/main/java/org/gcube/informationsystem/resourceregistry/queries/templates/ResourceRegistryQueryTemplateClientFactory.java
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@ -1,17 +1,10 @@
package org.gcube.informationsystem.resourceregistry.queries.templates;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import org.gcube.common.authorization.library.AuthorizationEntry;
import org.gcube.common.authorization.library.provider.SecurityTokenProvider;
import org.gcube.common.resources.gcore.GCoreEndpoint;
import org.gcube.common.resources.gcore.ServiceEndpoint;
import org.gcube.common.scope.api.ScopeProvider;
import org.gcube.informationsystem.resourceregistry.api.Constants;
import org.gcube.resources.discovery.client.queries.api.SimpleQuery;
import org.gcube.resources.discovery.icclient.ICFactory;
import org.gcube.informationsystem.resourceregistry.api.rest.ServiceInstance;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ -22,28 +15,6 @@ public class ResourceRegistryQueryTemplateClientFactory {
private static final Logger logger = LoggerFactory.getLogger(ResourceRegistryQueryTemplateClientFactory.class);
protected static List<String> addresses;
static {
addresses = new ArrayList<>();
}
private static String FORCED_URL = null;
protected static void forceToURL(String url){
FORCED_URL = url;
}
private static String classFormat = "$resource/Profile/ServiceClass/text() eq '%1s'";
private static String nameFormat = "$resource/Profile/ServiceName/text() eq '%1s'";
private static String statusFormat = "$resource/Profile/DeploymentData/Status/text() eq 'ready'";
private static String containsFormat = "$entry/@EntryName eq '%1s'";
private static String serviceEndpointCategoryFormat = "$resource/Profile/Category/text() eq '%1s'";
private static String serviceEndpointNameFormat = "$resource/Profile/Name/text() eq '%1s'";
private static String serviceEndpointstatusFormat = "$resource/Profile/RunTime/Status/text() eq 'READY'";
public static String getCurrentContextFullName() {
String token = SecurityTokenProvider.instance.get();
AuthorizationEntry authorizationEntry = null;
@ -55,43 +26,10 @@ public class ResourceRegistryQueryTemplateClientFactory {
return authorizationEntry.getContext();
}
private static SimpleQuery queryForService(){
return ICFactory.queryFor(GCoreEndpoint.class)
.addCondition(String.format(classFormat, Constants.SERVICE_CLASS))
.addCondition(String.format(nameFormat, Constants.SERVICE_NAME))
.addCondition(String.format(statusFormat))
.addVariable("$entry","$resource/Profile/AccessPoint/RunningInstanceInterfaces/Endpoint")
.addCondition(String.format(containsFormat, Constants.SERVICE_ENTRY_NAME))
.setResult("$entry/text()");
}
private static String FORCED_URL = null;
private static SimpleQuery queryForProxy(){
return ICFactory.queryFor(ServiceEndpoint.class)
.addCondition(String.format(serviceEndpointCategoryFormat, Constants.SERVICE_CLASS))
.addCondition(String.format(serviceEndpointNameFormat, Constants.SERVICE_NAME))
.addCondition(String.format(serviceEndpointstatusFormat))
.addVariable("$entry","$resource/Profile/AccessPoint/Interface/Endpoint")
.addCondition(String.format(containsFormat, Constants.SERVICE_ENTRY_NAME))
.setResult("$entry/text()");
}
protected static List<String> getAddresses(){
List<String> addresses = new ArrayList<>();
try {
SimpleQuery proxyQuery = queryForProxy();
addresses = ICFactory.client().submit(proxyQuery);
if(addresses==null || addresses.isEmpty()){
throw new Exception("No ResourceRegistry Proxy Found");
}
} catch (Exception e) {
logger.debug("{}. Looking for RunningInstance.", e.getMessage());
SimpleQuery serviceQuery = queryForService();
addresses = ICFactory.client().submit(serviceQuery);
}
return addresses;
protected static void forceToURL(String url){
FORCED_URL = url;
}
public static ResourceRegistryQueryTemplateClient create() {
@ -100,21 +38,10 @@ public class ResourceRegistryQueryTemplateClientFactory {
if(FORCED_URL!=null){
address = FORCED_URL;
}else {
if(addresses==null || addresses.isEmpty()) {
addresses = getAddresses();
}
if(addresses==null || addresses.isEmpty()){
String error = String.format("No %s:%s found in the current context %s", Constants.SERVICE_CLASS, Constants.SERVICE_NAME, getCurrentContextFullName());
throw new RuntimeException(error);
}
Random random = new Random();
int index = random.nextInt(addresses.size());
address = addresses.get(index);
address = String.format("%s/%s", ServiceInstance.getServiceURL(),Constants.SERVICE_NAME);
}
logger.trace("The {} will be contacted at {}", Constants.SERVICE_NAME, address);
return new ResourceRegistryQueryTemplateClientImpl(address);
}