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Issue2068.groovy
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package graphql
import graphql.schema.DataFetcher
import graphql.schema.DataFetchingEnvironment
import graphql.schema.StaticDataFetcher
import graphql.schema.idl.RuntimeWiring
import org.apache.commons.lang3.concurrent.BasicThreadFactory
import org.dataloader.BatchLoader
import org.dataloader.DataLoader
import org.dataloader.DataLoaderOptions
import org.dataloader.DataLoaderRegistry
import spock.lang.Specification
import java.util.concurrent.CompletableFuture
import java.util.concurrent.CompletionStage
import java.util.concurrent.SynchronousQueue
import java.util.concurrent.ThreadFactory
import java.util.concurrent.ThreadPoolExecutor
import java.util.concurrent.TimeUnit
import static graphql.ExecutionInput.newExecutionInput
import static graphql.schema.idl.TypeRuntimeWiring.newTypeWiring
class Issue2068 extends Specification {
def "shouldn't hang on exception in resolveFieldWithInfo"() {
setup:
def sdl = """
type Nation {
name: String
}
type Toy {
name: String
}
type Owner {
nation: Nation
}
type Cat {
toys: [Toy]
}
type Dog {
owner: Owner
}
type Pets {
cats: [Cat]
dogs: [Dog]
}
type Query {
pets: Pets
}
"""
def cats = [['id': "cat-1"]]
def dogs = [['id': "dog-1"]]
ThreadFactory threadFactory = new BasicThreadFactory.Builder()
.namingPattern("resolver-chain-thread-%d").build()
def executor = new ThreadPoolExecutor(15, 15, 0L,
TimeUnit.MILLISECONDS, new SynchronousQueue<>(), threadFactory,
new ThreadPoolExecutor.CallerRunsPolicy())
DataFetcher nationsDf = { env -> env.getDataLoader("owner.nation").load(env) }
DataFetcher ownersDf = { env -> env.getDataLoader("dog.owner").load(env) }
def wiring = RuntimeWiring.newRuntimeWiring()
.type(newTypeWiring("Query")
.dataFetcher("pets", new StaticDataFetcher(['cats': cats, 'dogs': dogs])))
.type(newTypeWiring("Cat")
.dataFetcher("toys", new StaticDataFetcher(new AbstractList() {
@Override
Object get(int i) {
throw new RuntimeException("Simulated failure");
}
@Override
int size() {
return 1
}
})))
.type(newTypeWiring("Dog")
.dataFetcher("owner", ownersDf))
.type(newTypeWiring("Owner")
.dataFetcher("nation", nationsDf))
.build()
def schema = TestUtil.schema(sdl, wiring)
when:
def graphql = GraphQL.newGraphQL(schema)
.build()
DataLoaderRegistry dataLoaderRegistry = mkNewDataLoaderRegistry(executor)
graphql.execute(newExecutionInput()
.dataLoaderRegistry(dataLoaderRegistry)
.query("""
query LoadPets {
pets {
cats {
toys {
name
}
}
dogs {
owner {
nation {
name
}
}
}
}
}
""")
.build())
then: "execution with single instrumentation shouldn't hang"
// wait for each future to complete and grab the results
thrown(RuntimeException)
when:
graphql = GraphQL.newGraphQL(schema)
.build()
graphql.execute(newExecutionInput()
.dataLoaderRegistry(dataLoaderRegistry)
.query("""
query LoadPets {
pets {
cats {
toys {
name
}
}
dogs {
owner {
nation {
name
}
}
}
}
}
""")
.build())
then: "execution with chained instrumentation shouldn't hang"
// wait for each future to complete and grab the results
thrown(RuntimeException)
}
private static DataLoaderRegistry mkNewDataLoaderRegistry(executor) {
def dataLoaderNations = new DataLoader<Object, Object>(new BatchLoader<DataFetchingEnvironment, List<Object>>() {
@Override
CompletionStage<List<List<Object>>> load(List<DataFetchingEnvironment> keys) {
return CompletableFuture.supplyAsync({
def nations = []
for (int i = 1; i <= 1; i++) {
nations.add(['id': "nation-$i", 'name': "nation-$i"])
}
return nations
}, executor) as CompletionStage<List<List<Object>>>
}
}, DataLoaderOptions.newOptions().setMaxBatchSize(5))
def dataLoaderOwners = new DataLoader<Object, Object>(new BatchLoader<DataFetchingEnvironment, List<Object>>() {
@Override
CompletionStage<List<List<Object>>> load(List<DataFetchingEnvironment> keys) {
return CompletableFuture.supplyAsync({
def owners = []
for (int i = 1; i <= 1; i++) {
owners.add(['id': "owner-$i"])
}
return owners
}, executor) as CompletionStage<List<List<Object>>>
}
}, DataLoaderOptions.newOptions().setMaxBatchSize(5))
def dataLoaderRegistry = new DataLoaderRegistry()
dataLoaderRegistry.register("dog.owner", dataLoaderOwners)
dataLoaderRegistry.register("owner.nation", dataLoaderNations)
dataLoaderRegistry
}
}