Adding support for types as tree using ModelKnowledge as cache

src/main/java/org/gcube/informationsystem/resourceregistry/client/RRCTypesDiscoverer.java

@@ -0,0 +1,26 @@
+package org.gcube.informationsystem.resourceregistry.client;
+
+import java.util.Collection;
+
+import org.gcube.informationsystem.base.reference.AccessType;
+import org.gcube.informationsystem.model.knowledge.TypesDiscoverer;
+import org.gcube.informationsystem.types.reference.Type;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public class RRCTypesDiscoverer implements TypesDiscoverer<Type> {
+
+	protected ResourceRegistryClient resourceRegistryClient;
+	
+	public RRCTypesDiscoverer(ResourceRegistryClient resourceRegistryClient) {
+		this.resourceRegistryClient = resourceRegistryClient;
+	}
+	
+	@Override
+	public Collection<Type> discover(AccessType accessType) {
+		
+		return null;
+	}
+
+}

src/main/java/org/gcube/informationsystem/resourceregistry/client/ResourceRegistryClientImpl.java

@@ -43,8 +43,10 @@ import org.gcube.informationsystem.resourceregistry.api.rest.QueryTemplatePath;
 import org.gcube.informationsystem.resourceregistry.api.rest.TypePath;
 import org.gcube.informationsystem.resourceregistry.api.rest.httputils.HTTPUtility;
 import org.gcube.informationsystem.serialization.ElementMapper;
+import org.gcube.informationsystem.tree.Node;
 import org.gcube.informationsystem.types.TypeMapper;
 import org.gcube.informationsystem.types.knowledge.TypeInformation;
+import org.gcube.informationsystem.types.knowledge.TypesKnowledge;
 import org.gcube.informationsystem.types.reference.Type;
 import org.gcube.informationsystem.utils.TypeUtility;
 import org.slf4j.Logger;
@@ -66,7 +68,7 @@ public class ResourceRegistryClientImpl extends BaseRequestInfo implements Resou
 	
 	protected ContextCache contextCache;
 	
-	protected ModelKnowledge<Type, TypeInformation> modelKnowledge;
+	protected TypesKnowledge typesKnowledge;
 	
 	@Deprecated
 	@Override
@@ -148,21 +150,30 @@ public class ResourceRegistryClientImpl extends BaseRequestInfo implements Resou
 	}
 	
 	public ResourceRegistryClientImpl(String address) {
-		this(address, true);
+		this(address, true, true);
 	}
 	
-	public ResourceRegistryClientImpl(String address, boolean sharedContextCache) {
+	public ResourceRegistryClientImpl(String address, boolean sharedContextCache, boolean sharedModelKnowledge) {
 		super();
 		this.address = address;
 		this.headers = new HashMap<>();
 		if(sharedContextCache) {
-			contextCache = ContextCache.getInstance();
+			this.contextCache = ContextCache.getInstance();
 		}else {
-			contextCache = new ContextCache();
+			this.contextCache = new ContextCache();
 		}
-		contextCache.setContextCacheRenewal(contextCacheRenewal);
+		this.contextCache.setContextCacheRenewal(contextCacheRenewal);
+		
+		if(sharedModelKnowledge) {
+			this.typesKnowledge = TypesKnowledge.getInstance();
+		}else {
+			this.typesKnowledge = new TypesKnowledge();
+		}
+		typesKnowledge.setTypesDiscoverer(new RRCTypesDiscoverer(this));
 	}
 	
+	
+	
 	/**
 	 * It reads all the contexts from server. 
 	 * The cache used for contexts is bypassed and not updated.
@@ -210,6 +221,10 @@ public class ResourceRegistryClientImpl extends BaseRequestInfo implements Resou
 		return contextCache;
 	}
 	
+	public ModelKnowledge<Type, TypeInformation> getModelKnowledge() {
+		return typesKnowledge.getModelKnowledge();
+	}
+
 	/**
 	 * It reads the context from server. 
 	 * The cache used for contexts is bypassed and not updated.
@@ -318,6 +333,14 @@ public class ResourceRegistryClientImpl extends BaseRequestInfo implements Resou
 	
 	@Override
 	public boolean existType(String typeName) throws ResourceRegistryException {
+		try {
+			return typesKnowledge.getModelKnowledge().getTypeByName(typeName) != null;
+		}catch (RuntimeException e) {
+			return false;
+		}
+	}
+	
+	public boolean existTypeFromServer(String typeName) throws ResourceRegistryException {
 		try {
 			logger.info("Going to get {} schema", typeName);
 			GXHTTPStringRequest gxHTTPStringRequest = getGXHTTPStringRequest();
@@ -344,7 +367,7 @@ public class ResourceRegistryClientImpl extends BaseRequestInfo implements Resou
 			// logger.trace("Error while getting {}schema for {}", polymorphic ?
 			// AccessPath.POLYMORPHIC_PARAM + " " : "",
 			// type, e);
-			throw new RuntimeException(e);
+			throw new ResourceRegistryException(e);
 		}
 	}
 	
@@ -357,10 +380,43 @@ public class ResourceRegistryClientImpl extends BaseRequestInfo implements Resou
 		} catch(ResourceRegistryException e) {
 			throw e;
 		} catch(Exception e) {
-			throw new RuntimeException(e);
+			throw new ResourceRegistryException(e);
 		}
 	}
 	
+	public <ERElem extends ERElement> List<Type> getTypeFromServer(Class<ERElem> clazz, Boolean polymorphic)
+			throws SchemaNotFoundException, ResourceRegistryException {
+		try {
+			String json = getTypeFromServer(TypeUtility.getTypeName(clazz), polymorphic);
+			return TypeMapper.deserializeTypeDefinitions(json);
+		} catch(ResourceRegistryException e) {
+			throw e;
+		} catch(Exception e) {
+			throw new ResourceRegistryException(e);
+		}
+	}
+	
+	/*
+	@Override
+	public String getType(String typeName, Boolean polymorphic)
+	*/
+	public String getTypeFromKnowledge(String typeName, Boolean polymorphic)
+			throws SchemaNotFoundException, ResourceRegistryException {
+		try {
+			 Node<Type> node = typesKnowledge.getModelKnowledge().getNodeByName(typeName);
+			 if(polymorphic) {
+				 // TODO
+			 }else {
+				 // TODO
+			 }
+			 return null;
+		} catch(Exception e) {
+			throw new ResourceRegistryException(e);
+		}
+	}
+	
+	
+	// public String getTypeFromServer(String typeName, Boolean polymorphic)
 	@Override
 	public String getType(String typeName, Boolean polymorphic)
 			throws SchemaNotFoundException, ResourceRegistryException {