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    • graphql.execution.AbstractAsyncExecutionStrategy Maven / Gradle / Ivy

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    package graphql.execution;

import com.google.common.collect.Maps;
import graphql.ExecutionResult;
import graphql.ExecutionResultImpl;
import graphql.PublicSpi;

import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.function.BiConsumer;


@PublicSpi
public abstract class AbstractAsyncExecutionStrategy extends ExecutionStrategy {

    public AbstractAsyncExecutionStrategy() {
    }

    public AbstractAsyncExecutionStrategy(DataFetcherExceptionHandler dataFetcherExceptionHandler) {
        super(dataFetcherExceptionHandler);
    }

    protected BiConsumer, Throwable> handleResults(ExecutionContext executionContext, List fieldNames, CompletableFuture overallResult) {
        return (List results, Throwable exception) -> {
            if (exception != null) {
                handleNonNullException(executionContext, overallResult, exception);
                return;
            }
            Map resolvedValuesByField = Maps.newLinkedHashMapWithExpectedSize(fieldNames.size());
            int ix = 0;
            for (Object result : results) {
                String fieldName = fieldNames.get(ix++);
                resolvedValuesByField.put(fieldName, result);
            }
            overallResult.complete(new ExecutionResultImpl(resolvedValuesByField, executionContext.getErrors()));
        };
    }
}
    
    
    
    

    




    
    
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