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GraphqL Java
There is a newer version: 2021-03-26T09-09-21-fabd441
package graphql.nadel;

import graphql.PublicApi;
import graphql.cachecontrol.CacheControl;
import graphql.execution.ExecutionId;
import graphql.language.Document;
import graphql.language.FragmentDefinition;
import graphql.language.OperationDefinition;

import java.util.LinkedHashMap;
import java.util.Map;

import static graphql.Assert.assertNotNull;


@PublicApi
public class ServiceExecutionParameters {

    private final Document query;
    private final Object context;
    private final Map variables;
    private final Map fragments;
    private final OperationDefinition operationDefinition;
    private final ExecutionId executionId;
    private final CacheControl cacheControl;
    private final Object serviceContext;
    private final boolean hydrationCall;

    private ServiceExecutionParameters(Builder builder) {
        this.query = assertNotNull(builder.query);
        this.variables = assertNotNull(builder.variables);
        this.fragments = assertNotNull(builder.fragments);
        this.operationDefinition = assertNotNull(builder.operationDefinition);
        this.context = builder.context;
        this.executionId = builder.executionId;
        this.cacheControl = builder.cacheControl;
        this.serviceContext = builder.serviceContext;
        this.hydrationCall = builder.hydrationCall;
    }

    public Document getQuery() {
        return query;
    }

    public Object getContext() {
        return context;
    }

    public ExecutionId getExecutionId() {
        return executionId;
    }

    public CacheControl getCacheControl() {
        return cacheControl;
    }

    public Map getVariables() {
        return variables;
    }

    public Map getFragments() {
        return fragments;
    }

    public OperationDefinition getOperationDefinition() {
        return operationDefinition;
    }

    public OperationDefinition.Operation getOperation() {
        return operationDefinition.getOperation();
    }

    public  T getServiceContext() {
        return (T) serviceContext;
    }

    public boolean isHydrationCall() {
        return hydrationCall;
    }

    public static Builder newServiceExecutionParameters() {
        return new Builder();
    }

    public static class Builder {
        private Document query;
        private Object context;
        private Map variables = new LinkedHashMap<>();
        private Map fragments = new LinkedHashMap<>();
        private OperationDefinition operationDefinition;
        private ExecutionId executionId;
        private CacheControl cacheControl;
        private Object serviceContext;
        private boolean hydrationCall;

        private Builder() {
        }

        public Builder query(Document query) {
            this.query = query;
            return this;
        }

        public Builder context(Object context) {
            this.context = context;
            return this;
        }

        public Builder executionId(ExecutionId executionId) {
            this.executionId = executionId;
            return this;
        }

        public Builder cacheControl(CacheControl cacheControl) {
            this.cacheControl = cacheControl;
            return this;
        }

        public Builder variables(Map variables) {
            this.variables.putAll(variables);
            return this;
        }

        public Builder fragments(Map fragments) {
            this.fragments.putAll(fragments);
            return this;
        }

        public Builder operationDefinition(OperationDefinition operationDefinition) {
            this.operationDefinition = operationDefinition;
            return this;
        }

        public Builder serviceContext(Object serviceContext) {
            this.serviceContext = serviceContext;
            return this;
        }

        public Builder hydrationCall(boolean isHydrationCall) {
            this.hydrationCall = isHydrationCall;
            return this;
        }

        public ServiceExecutionParameters build() {
            return new ServiceExecutionParameters(this);
        }
    }
}