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Merge remote-tracking branch 'entur/otp2_fix_transmodel_api_relax_tra…
…nsit_group_priority' into otp2_entur_develop
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83 changes: 83 additions & 0 deletions
83
src/main/java/org/opentripplanner/framework/graphql/scalar/CostScalarFactory.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| package org.opentripplanner.framework.graphql.scalar; | ||
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| import graphql.GraphQLContext; | ||
| import graphql.execution.CoercedVariables; | ||
| import graphql.language.StringValue; | ||
| import graphql.language.Value; | ||
| import graphql.schema.Coercing; | ||
| import graphql.schema.CoercingParseLiteralException; | ||
| import graphql.schema.CoercingParseValueException; | ||
| import graphql.schema.GraphQLScalarType; | ||
| import java.util.Locale; | ||
| import java.util.NoSuchElementException; | ||
| import javax.annotation.Nonnull; | ||
| import org.opentripplanner.framework.model.Cost; | ||
| import org.opentripplanner.framework.time.DurationUtils; | ||
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|
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| public class CostScalarFactory { | ||
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| private static final String TYPENAME = "Cost"; | ||
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| private static final String DOCUMENTATION = | ||
| "A cost value, normally a value of 1 is equivalent to riding transit for 1 second, " + | ||
| "but it might not depending on the use-case. Format: 3665 = DT1h1m5s = 1h1m5s"; | ||
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| private static final GraphQLScalarType SCALAR_INSTANCE = createCostScalar(); | ||
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| private CostScalarFactory() {} | ||
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| public static GraphQLScalarType costScalar() { | ||
| return SCALAR_INSTANCE; | ||
| } | ||
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| private static GraphQLScalarType createCostScalar() { | ||
| return GraphQLScalarType | ||
| .newScalar() | ||
| .name(TYPENAME) | ||
| .description(DOCUMENTATION) | ||
| .coercing(createCoercing()) | ||
| .build(); | ||
| } | ||
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| private static String serializeCost(Cost cost) { | ||
| return cost.asDuration().toString(); | ||
| } | ||
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| private static Cost parseCost(String input) throws CoercingParseValueException { | ||
| try { | ||
| return Cost.fromDuration(DurationUtils.parseSecondsOrDuration(input).orElseThrow()); | ||
| } catch (IllegalArgumentException | NoSuchElementException e) { | ||
| throw new CoercingParseValueException(e.getMessage(), e); | ||
| } | ||
| } | ||
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| private static Coercing<Cost, String> createCoercing() { | ||
| return new Coercing<>() { | ||
| @Override | ||
| public String serialize(@Nonnull Object result, GraphQLContext c, Locale l) { | ||
| return serializeCost((Cost) result); | ||
| } | ||
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| @Override | ||
| public Cost parseValue(Object input, GraphQLContext c, Locale l) | ||
| throws CoercingParseValueException { | ||
| return parseCost((String) input); | ||
| } | ||
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| @Override | ||
| public Cost parseLiteral(Value<?> input, CoercedVariables v, GraphQLContext c, Locale l) | ||
| throws CoercingParseLiteralException { | ||
| if (input instanceof StringValue stringValue) { | ||
| return parseCost(stringValue.getValue()); | ||
| } | ||
| return null; | ||
| } | ||
|
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| @Override | ||
| @Nonnull | ||
| public Value<?> valueToLiteral(Object input, GraphQLContext c, Locale l) { | ||
| return StringValue.of((String) input); | ||
| } | ||
| }; | ||
| } | ||
| } |
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