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Module for automatic Functionalities
/**
* Copyright 2019 MetaRing s.r.l.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.metaring.framework.functionality;
import static java.util.concurrent.CompletableFuture.completedFuture;
import java.util.Arrays;
import java.util.concurrent.CompletableFuture;
import java.util.function.Function;
import com.metaring.framework.Core;
import com.metaring.framework.exception.ManagedException;
import com.metaring.framework.type.DataRepresentation;
import com.metaring.framework.util.StringUtil;
public class FunctionalitiesManager {
public static final CompletableFuture executeFromJson(String functionalityFullyQualifiedName, Functionality callingFunctionality, String inputJson) throws FunctionalityNotFoundException {
return executeWork(FunctionalitiesInfoProvider.get(functionalityFullyQualifiedName), null, callingFunctionality, inputJson, true);
}
public static final CompletableFuture call(FunctionalityInfo functionalityInfo, Class functionalityClass, Functionality callingFunctionality, Object input, Function transformer) {
return executeWork(functionalityInfo, functionalityClass, callingFunctionality, input, false, transformer);
}
public static final CompletableFuture callFromJson(FunctionalityInfo functionalityInfo, Class functionalityClass, Functionality callingFunctionality, String input, Function transformer) {
return executeWork(functionalityInfo, functionalityClass, callingFunctionality, input, true, transformer);
}
public static final CompletableFuture callFromJson(FunctionalityInfo functionalityInfo, Functionality callingFunctionality, String input, Function transformer) {
return executeWork(functionalityInfo, null, callingFunctionality, input, true, transformer);
}
private static final CompletableFuture executeWork(FunctionalityInfo functionalityInfo, Class functionalityClass, Functionality callingFunctionality, Object input, boolean toJson, Function transformer) {
final CompletableFuture result = new CompletableFuture<>();
FunctionalitiesManager.executeWork(functionalityInfo, functionalityClass, callingFunctionality, input, toJson).whenCompleteAsync((res, error) -> {
try {
if(error != null) {
throw error;
}
DataRepresentation r = verifyAndReturnFunctionalityExecutionResult(res);
result.complete(transformer != null && r != null ? transformer.apply(r) : null);
} catch (Throwable e) {
result.completeExceptionally(e);
}
}, FunctionalityControllerManager.INSTANCE);
return result;
}
public static final DataRepresentation verifyAndReturnFunctionalityExecutionResult(FunctionalityExecutionResult functionalityExecutionResult) throws ManagedException, UnmanagedException {
return verifyAndReturnFunctionalityExecutionResult(functionalityExecutionResult, null);
}
public static final DataRepresentation verifyAndReturnFunctionalityExecutionResult(FunctionalityExecutionResult functionalityExecutionResult, String warningData) throws ManagedException, UnmanagedException {
if (functionalityExecutionResult == null) {
throw new FunctionalityExecutionResultCheckException(FunctionalitiesManager.getStack(FunctionalityExecutionStepEnumerator.VERIFY_RESULT), "Functionality execution result is null");
}
if (functionalityExecutionResult.getVerdict() == FunctionalityExecutionVerdictEnumerator.WARNING) {
FunctionalityExecutionWarningDataSeries functionalityExecutionWarningDataSeries = functionalityExecutionResult.getWarningData();
if (functionalityExecutionWarningDataSeries == null) {
throw new FunctionalityExecutionResultCheckException(FunctionalitiesManager.getStack(FunctionalityExecutionStepEnumerator.VERIFY_RESULT), "Warning data is null");
}
if (functionalityExecutionWarningDataSeries.size() == 0) {
throw new FunctionalityExecutionResultCheckException(FunctionalitiesManager.getStack(FunctionalityExecutionStepEnumerator.VERIFY_RESULT), "No Warning data provided");
}
StringBuilder stringBuilder = new StringBuilder();
for (int l = 0; l < functionalityExecutionResult.getWarningData().size(); ++l) {
FunctionalityExecutionWarningData functionalityExecutionWarningData = functionalityExecutionResult.getWarningData().get(l);
if (functionalityExecutionWarningData == null) {
throw new FunctionalityExecutionResultCheckException(FunctionalitiesManager.getStack(FunctionalityExecutionStepEnumerator.VERIFY_RESULT), "Warning data entry is null");
}
if (functionalityExecutionWarningData.getStep() == null) {
throw new FunctionalityExecutionResultCheckException(FunctionalitiesManager.getStack(FunctionalityExecutionStepEnumerator.VERIFY_RESULT), "Warning data entry step is null");
}
if (functionalityExecutionWarningData.getMessage() == null) {
throw new FunctionalityExecutionResultCheckException(FunctionalitiesManager.getStack(FunctionalityExecutionStepEnumerator.VERIFY_RESULT), "Warning data entry message is null");
}
stringBuilder.append("\n");
stringBuilder.append("Warning data message retreived during ");
stringBuilder.append(functionalityExecutionWarningData.getStep().getName()).append(" step:");
stringBuilder.append("\n\t");
stringBuilder.append(functionalityExecutionWarningData.getMessage());
stringBuilder.append("\n");
}
warningData = stringBuilder.toString();
String warningMessage = warningData;
Core.SYSKB.getSystemLogger().warning(warningMessage);
}
if (functionalityExecutionResult.getVerdict() == FunctionalityExecutionVerdictEnumerator.FAULT) {
FunctionalityExecutionError functionalityExecutionError = functionalityExecutionResult.getErrorData();
if (functionalityExecutionError == null) {
throw new FunctionalityExecutionResultCheckException(FunctionalitiesManager.getStack(FunctionalityExecutionStepEnumerator.VERIFY_RESULT), "Error data is null");
}
if (functionalityExecutionError.getStack() == null) {
throw new FunctionalityExecutionResultCheckException(FunctionalitiesManager.getStack(FunctionalityExecutionStepEnumerator.VERIFY_RESULT), "Error data stack is null");
}
FunctionalityStepErrorData functionalityStepErrorData = functionalityExecutionError.getErrorData();
if (functionalityStepErrorData == null) {
throw new FunctionalityExecutionResultCheckException(FunctionalitiesManager.getStack(FunctionalityExecutionStepEnumerator.VERIFY_RESULT), "Step error data is null");
}
if (functionalityStepErrorData.getType() == null) {
throw new FunctionalityExecutionResultCheckException(FunctionalitiesManager.getStack(FunctionalityExecutionStepEnumerator.VERIFY_RESULT), "Error data type is null");
}
if (functionalityStepErrorData.getMessage() == null) {
throw new FunctionalityExecutionResultCheckException(FunctionalitiesManager.getStack(FunctionalityExecutionStepEnumerator.VERIFY_RESULT), "Error data message is null");
}
if (functionalityStepErrorData.getType() == FunctionalityErrorTypeEnumerator.UNMANAGED) {
throw new RebuiltUnmanagedException(functionalityExecutionError);
}
throw new RebuiltManagedException(functionalityStepErrorData);
}
return functionalityExecutionResult.getResult();
}
public static final DataRepresentation verifyAndSaveData(FunctionalityExecutionResult functionalityExecutionResult, String warningData, Throwable e) {
DataRepresentation result = null;
try {
result = FunctionalitiesManager.verifyAndReturnFunctionalityExecutionResult(functionalityExecutionResult, warningData);
}
catch (Exception ex) {
e = ex;
}
return result;
}
private static final CompletableFuture executeWork(FunctionalityInfo functionalityInfo, Class functionalityClass, Functionality callingFunctionality, Object input, boolean fromJson) {
try {
AbstractFunctionality functionality = FunctionalitiesProvider.getFunctionality(functionalityInfo, functionalityClass);
return functionality.execute(callingFunctionality == null ? new FunctionalityContext() : callingFunctionality.getContext(), fromJson ? functionality.getInputFromJson(input == null ? null : input.toString()) : input);
} catch (FunctionalityCreationException e) {
return completedFuture(launchCreationUnmanagedError(callingFunctionality, e));
}
}
private static final FunctionalityExecutionResult launchCreationUnmanagedError(Functionality callingFunctionality, Throwable t) {
return FunctionalityExecutionResult.create(FunctionalityExecutionVerdictEnumerator.FAULT, null, FunctionalityExecutionError.create(FunctionalitiesManager.getStack(callingFunctionality), FunctionalityStepErrorData.create(FunctionalityErrorTypeEnumerator.UNMANAGED, null, null, StringUtil.fromThrowableToString(t), -1l)), null, null);
}
public static final FunctionalityStackElementSeries getStack(Functionality functionality) {
if (functionality != null && functionality.getContext() != null) {
return functionality.getContext().getStack().toStackElementSeries();
}
return getStack(FunctionalityExecutionStepEnumerator.CALL);
}
public static final FunctionalityStackElementSeries getStack(FunctionalityExecutionStepEnumerator functionalityExecutionStepEnumerator) {
return FunctionalityStackElementSeries.create(FunctionalityStackElement.create("<" + functionalityExecutionStepEnumerator.getName().toLowerCase() + ">", functionalityExecutionStepEnumerator));
}
protected static final Functionality getCallingFunctionality() {
try {
return FunctionalitiesProvider.getFunctionalityByClassName(Arrays.asList(Thread.currentThread().getStackTrace()).stream().map(StackTraceElement::getClassName).filter(it -> it.endsWith("FunctionalityImpl")).findFirst().get());
} catch (Exception e) {
return null;
}
}
}