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package graphql;

import graphql.language.BooleanValue;

import graphql.language.FloatValue;

import graphql.language.IntValue;

import graphql.language.StringValue;

import graphql.schema.Coercing;

import graphql.schema.GraphQLScalarType;

public class Scalars {

public static GraphQLScalarType GraphQLInt = new GraphQLScalarType("Int", "Built-in Int", new Coercing() {

@Override

public Object serialize(Object input) {

if (input instanceof String) {

return Integer.parseInt((String) input);

} else if (input instanceof Integer) {

return input;

} else {

throw new GraphQLException("Illegal value for GraphQLInt:" + input);

}

}

@Override

public Object parseValue(Object input) {

return serialize(input);

}

@Override

public Object parseLiteral(Object input) {

if (!(input instanceof IntValue)) return null;

return ((IntValue) input).getValue();

}

});

public static GraphQLScalarType GraphQLLong = new GraphQLScalarType("Long", "Long type", new Coercing() {

@Override

public Object serialize(Object input) {

if (input instanceof String) {

return Long.parseLong((String) input);

} else if (input instanceof Long) {

return input;

} else if (input instanceof Integer) {

return ((Integer) input).longValue();

} else {

throw new GraphQLException("");

}

}

@Override

public Object parseValue(Object input) {

return serialize(input);

}

@Override

public Object parseLiteral(Object input) {

if (input instanceof StringValue) {

return Long.parseLong(((StringValue) input).getValue());

} else if (input instanceof IntValue) {

return ((IntValue) input).getValue();

}

return null;

}

});

public static GraphQLScalarType GraphQLFloat = new GraphQLScalarType("Float", "Built-in Float", new Coercing() {

@Override

public Object serialize(Object input) {

if (input instanceof String) {

return Float.parseFloat((String) input);

} else if (input instanceof Float) {

return input;

} else {

throw new GraphQLException();

}

}

@Override

public Object parseValue(Object input) {

return serialize(input);

}

@Override

public Object parseLiteral(Object input) {

return ((FloatValue) input).getValue().floatValue();

}

});

public static GraphQLScalarType GraphQLString = new GraphQLScalarType("String", "Built-in String", new Coercing() {

@Override

public Object serialize(Object input) {

return input == null ? null : input.toString();

}

@Override

public Object parseValue(Object input) {

return serialize(input);

}

@Override

public Object parseLiteral(Object input) {

if (!(input instanceof StringValue)) return null;

return ((StringValue) input).getValue();

}

});

public static GraphQLScalarType GraphQLBoolean = new GraphQLScalarType("Boolean", "Built-in Boolean", new Coercing() {

@Override

public Object serialize(Object input) {

if (input instanceof Boolean) {

return input;

} else if (input instanceof Integer) {

return (Integer) input > 0;

} else if (input instanceof String) {

return Boolean.parseBoolean((String) input);

} else {

throw new GraphQLException();

}

}

@Override

public Object parseValue(Object input) {

return serialize(input);

}

@Override

public Object parseLiteral(Object input) {

if (!(input instanceof BooleanValue)) return null;

return ((BooleanValue) input).isValue();

}

});

public static GraphQLScalarType GraphQLID = new GraphQLScalarType("ID", "Built-in ID", new Coercing() {

@Override

public Object serialize(Object input) {

if (input instanceof String) {

return input;

}

throw new GraphQLException();

}

@Override

public Object parseValue(Object input) {

return serialize(input);

}

@Override

public Object parseLiteral(Object input) {

if (!(input instanceof StringValue)) return null;

return ((StringValue) input).getValue();

}

});

}