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package org.onap.sdc.dcae.composition.impl;
import org.json.JSONArray;
import org.json.JSONException;
import org.onap.sdc.common.onaplog.Enums.LogLevel;
import org.onap.sdc.common.onaplog.OnapLoggerError;
import org.onap.sdc.dcae.catalog.Catalog;
import org.onap.sdc.dcae.catalog.engine.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.async.DeferredResult;
@Component
public class CompositionCatalogBusinessLogic {
@Autowired
private CatalogController catalogController;
protected OnapLoggerError errLogger = OnapLoggerError.getInstance();
public DeferredResult<CatalogResponse> getItems(ItemsRequest theRequest) {
final ItemsRequest request = (theRequest == null) ? ItemsRequest.EMPTY_REQUEST : theRequest;
Catalog catalog = catalogController.getCatalog(request.getCatalog());
DeferredResult<CatalogResponse> result = new DeferredResult<>(request.getTimeout());
catalog.rootsByLabel(request.getStartingLabel()).setHandler(catalogController.new CatalogHandler<Catalog.Folders>(request, result) {
public CatalogResponse handleData(Catalog.Folders theFolders) {
JSONArray ja = new JSONArray();
if (theFolders != null) {
for (Catalog.Folder folder : theFolders) {
ja.put(catalogController.patchData(catalog, folder.data()));
}
}
CatalogResponse response = new CatalogResponse(this.request);
try {
response.data().put("elements", ja);
} catch (JSONException e) {
errLogger.log(LogLevel.ERROR, this.getClass().getName(), "JSONException putting json elements to response {}", e);
}
return response;
}
});
return result;
}
public DeferredResult<CatalogResponse> getItemById(ItemsRequest theRequest, String theItemId) {
final ItemsRequest request = (theRequest == null) ? ItemsRequest.EMPTY_REQUEST : theRequest;
Catalog catalog = catalogController.getCatalog(request.getCatalog());
DeferredResult<CatalogResponse> result = new DeferredResult<>(request.getTimeout());
catalog.folder(theItemId).withParts().withPartAnnotations().withItems().withItemAnnotations().withItemModels().execute().setHandler(new FolderHandler(catalog, request, result));
return result;
}
public DeferredResult getModelById(ElementRequest theRequest, String theItemId) {
final ElementRequest request = (theRequest == null) ? ElementRequest.EMPTY_REQUEST : theRequest;
Catalog catalog = catalogController.getCatalog(request.getCatalog());
DeferredResult<CatalogResponse> result = new DeferredResult<>(request.getTimeout());
// try {
catalog.item(theItemId).withModels().execute().setHandler(new ItemHandler(catalog, request, result));
// } catch (IllegalArgumentException e) {
// errLogger.log(LogLevel.ERROR, this.getClass().getName(), "Error fetching catalog model with id {}. Message: {}", theItemId, e);
// result.setErrorResult(new CatalogError(request, "Catalog API failed", e));
// }
return result;
}
public DeferredResult<CatalogResponse> getTypeInfo(ElementRequest theRequest, String theItemId, String theTypeName) {
final ElementRequest request = (theRequest == null) ? ElementRequest.EMPTY_REQUEST : theRequest;
Catalog catalog = catalogController.getCatalog(request.getCatalog());
DeferredResult<CatalogResponse> result = new DeferredResult<>(request.getTimeout());
catalog.type(theItemId, theTypeName).withHierarchy().withCapabilities().withRequirements().execute().setHandler(catalogController.new CatalogHandler<Catalog.Type>(request, result) {
public CatalogResponse handleData(Catalog.Type theType) {
CatalogResponse response = new CatalogResponse(this.request);
if (theType != null) {
try {
response.data().put("type", catalogController.patchData(catalog, theType.data()));
} catch (JSONException e) {
errLogger.log(LogLevel.ERROR, this.getClass().getName(), "Exception processing catalog {}", e);
}
}
return response;
}
});
return result;
}
/// Nested Catalog Data Handlers ///
private class FolderHandler extends CatalogController.CatalogHandler<Catalog.Folder> {
private Catalog catalog;
private FolderHandler(Catalog catalog, ItemsRequest request, DeferredResult result) {
catalogController.super(request, result);
this.catalog = catalog;
}
private void patchCatalogData(Catalog.Elements folders, Catalog catalog) {
if (folders != null) {
folders.forEach(folder -> {
catalogController.patchData(catalog, ((Catalog.Element) folder).data());
// lots of ephemere proxies created here ..
Catalog.Elements annotations = ((Catalog.Element) folder).elements("annotations", Catalog.Annotations.class);
if (annotations != null) {
annotations.forEach(a -> catalogController.patchData(catalog, ((Catalog.Annotation) a).data()));
}
});
}
}
public CatalogResponse handleData(Catalog.Folder theFolder) {
CatalogResponse response = new CatalogResponse(this.request);
if (theFolder == null) {
return response;
}
try {
Catalog.Elements folders = theFolder.elements("parts", Catalog.Folders.class);
patchCatalogData(folders, catalog);
Catalog.Elements items = theFolder.elements("items", Catalog.Items.class);
patchCatalogData(items, catalog);
} catch (Exception x) {
errLogger.log(LogLevel.ERROR, this.getClass().getName(), "Exception processing catalog {}", x);
return new CatalogError(this.request, "", x);
}
try {
response.data().put("element", theFolder.data());
} catch (JSONException e) {
errLogger.log(LogLevel.ERROR, this.getClass().getName(), "JSONException putting element to response {}", e);
}
return response;
}
}
private class ItemHandler extends CatalogController.CatalogHandler<Catalog.Item> {
private Catalog catalog;
private ItemHandler(Catalog catalog, ElementRequest request, DeferredResult result) {
catalogController.super(request, result);
this.catalog = catalog;
}
public CatalogResponse handleData(Catalog.Item theItem) {
if (theItem == null) {
return new CatalogError(this.request, "No such item");
}
Catalog.Templates models;
try {
models = (Catalog.Templates) theItem.elements("models", Catalog.Templates.class);
} catch (Exception x) {
return new CatalogError(this.request, "Failed to decode templates from result", x);
}
if (models == null || models.isEmpty()) {
return new CatalogError(this.request, "Item has no models");
}
if (models.size() > 1) {
return new CatalogError(this.request, "Item has more than one model !?");
}
try {
catalog.template(models.get(0).id()).withInputs().withOutputs().withNodes().withNodeProperties().withNodePropertiesAssignments().withNodeRequirements().withNodeCapabilities().withNodeCapabilityProperties()
.withNodeCapabilityPropertyAssignments().withPolicies().withPolicyProperties().withPolicyPropertiesAssignments().execute().setHandler(new TemplateHandler(this.catalog, this.request, this.result));
} catch (Exception e) {
errLogger.log(LogLevel.ERROR, this.getClass().getName(), "Exception caught during Catalog Item Handler: {}", e);
}
return null;
}
}
private class TemplateHandler extends CatalogController.CatalogHandler<Catalog.Template> {
private Catalog catalog;
private TemplateHandler(Catalog catalog, CatalogRequest request, DeferredResult result) {
catalogController.super(request, result);
this.catalog = catalog;
}
public CatalogResponse handleData(Catalog.Template theTemplate) {
CatalogResponse response = new CatalogResponse(this.request);
if (theTemplate != null) {
try {
response.data().put("model", catalogController.patchData(catalog, theTemplate.data()));
} catch (JSONException e) {
errLogger.log(LogLevel.ERROR, this.getClass().getName(), "JSONException putting model to response {}", e);
}
}
return response;
}
}
}
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