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    • graphql.execution.instrumentation.SimpleInstrumentation Maven / Gradle / Ivy

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    package graphql.execution.instrumentation;

import graphql.ExecutionResult;
import graphql.PublicApi;
import graphql.execution.ExecutionContext;
import graphql.execution.instrumentation.parameters.InstrumentationDeferredFieldParameters;
import graphql.execution.instrumentation.parameters.InstrumentationExecuteOperationParameters;
import graphql.execution.instrumentation.parameters.InstrumentationExecutionParameters;
import graphql.execution.instrumentation.parameters.InstrumentationExecutionStrategyParameters;
import graphql.execution.instrumentation.parameters.InstrumentationFieldCompleteParameters;
import graphql.execution.instrumentation.parameters.InstrumentationFieldFetchParameters;
import graphql.execution.instrumentation.parameters.InstrumentationFieldParameters;
import graphql.execution.instrumentation.parameters.InstrumentationValidationParameters;
import graphql.language.Document;
import graphql.schema.DataFetcher;
import graphql.schema.GraphQLSchema;
import graphql.validation.ValidationError;

import java.util.List;
import java.util.concurrent.CompletableFuture;

/**
 * An implementation of {@link graphql.execution.instrumentation.Instrumentation} that does nothing.  It can be used
 * as a base for derived classes where you only implement the methods you want to
 */
@PublicApi
public class SimpleInstrumentation implements Instrumentation {

    /**
     * A singleton instance of a {@link graphql.execution.instrumentation.Instrumentation} that does nothing
     */
    public static final SimpleInstrumentation INSTANCE = new SimpleInstrumentation();

    public SimpleInstrumentation() {
    }

    @Override
    public InstrumentationState createState() {
        return null;
    }

    @Override
    public InstrumentationContext beginExecution(InstrumentationExecutionParameters parameters) {
        return new SimpleInstrumentationContext<>();
    }

    @Override
    public InstrumentationContext beginParse(InstrumentationExecutionParameters parameters) {
        return new SimpleInstrumentationContext<>();
    }

    @Override
    public InstrumentationContext> beginValidation(InstrumentationValidationParameters parameters) {
        return new SimpleInstrumentationContext<>();
    }

    @Override
    public ExecutionStrategyInstrumentationContext beginExecutionStrategy(InstrumentationExecutionStrategyParameters parameters) {
        return new ExecutionStrategyInstrumentationContext() {
            @Override
            public void onDispatched(CompletableFuture result) {

            }

            @Override
            public void onCompleted(ExecutionResult result, Throwable t) {

            }
        };
    }

    @Override
    public DeferredFieldInstrumentationContext beginDeferredField(InstrumentationDeferredFieldParameters parameters) {
        return new DeferredFieldInstrumentationContext() {
            @Override
            public void onDispatched(CompletableFuture result) {

            }

            @Override
            public void onCompleted(ExecutionResult result, Throwable t) {

            }
        };
    }

    @Override
    public InstrumentationContext beginExecuteOperation(InstrumentationExecuteOperationParameters parameters) {
        return new SimpleInstrumentationContext<>();
    }

    @Override
    public InstrumentationContext beginField(InstrumentationFieldParameters parameters) {
        return new SimpleInstrumentationContext<>();
    }

    @Override
    public InstrumentationContext beginFieldFetch(InstrumentationFieldFetchParameters parameters) {
        return new SimpleInstrumentationContext<>();
    }


    @Override
    public InstrumentationContext beginFieldComplete(InstrumentationFieldCompleteParameters parameters) {
        return new SimpleInstrumentationContext<>();
    }

    @Override
    public InstrumentationContext beginFieldListComplete(InstrumentationFieldCompleteParameters parameters) {
        return new SimpleInstrumentationContext<>();
    }

    @Override
    public GraphQLSchema instrumentSchema(GraphQLSchema schema, InstrumentationExecutionParameters parameters) {
        return schema;
    }

    @Override
    public ExecutionContext instrumentExecutionContext(ExecutionContext executionContext, InstrumentationExecutionParameters parameters) {
        return executionContext;
    }

    @Override
    public DataFetcher instrumentDataFetcher(DataFetcher dataFetcher, InstrumentationFieldFetchParameters parameters) {
        return dataFetcher;
    }

    @Override
    public CompletableFuture instrumentExecutionResult(ExecutionResult executionResult, InstrumentationExecutionParameters parameters) {
        return CompletableFuture.completedFuture(executionResult);
    }

}
    
    
    
    

    




    
    
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