Java.libraries.jersey3.oneof_model.mustache Maven / Gradle / Ivy
import {{javaxPackage}}.ws.rs.core.GenericType;
import {{javaxPackage}}.ws.rs.core.Response;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.MapperFeature;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
import com.fasterxml.jackson.databind.ser.std.StdSerializer;
import {{invokerPackage}}.JSON;
{{>additionalModelTypeAnnotations}}{{>generatedAnnotation}}{{>xmlAnnotation}}
@JsonDeserialize(using = {{classname}}.{{classname}}Deserializer.class)
@JsonSerialize(using = {{classname}}.{{classname}}Serializer.class)
public class {{classname}} extends AbstractOpenApiSchema{{#vendorExtensions.x-implements}} implements {{{.}}}{{^-last}}, {{/-last}}{{/vendorExtensions.x-implements}} {
private static final Logger log = Logger.getLogger({{classname}}.class.getName());
public static class {{classname}}Serializer extends StdSerializer<{{classname}}> {
public {{classname}}Serializer(Class<{{classname}}> t) {
super(t);
}
public {{classname}}Serializer() {
this(null);
}
@Override
public void serialize({{classname}} value, JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonProcessingException {
jgen.writeObject(value.getActualInstance());
}
}
public static class {{classname}}Deserializer extends StdDeserializer<{{classname}}> {
public {{classname}}Deserializer() {
this({{classname}}.class);
}
public {{classname}}Deserializer(Class vc) {
super(vc);
}
@Override
public {{classname}} deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException, JsonProcessingException {
JsonNode tree = jp.readValueAsTree();
Object deserialized = null;
{{#useOneOfDiscriminatorLookup}}
{{#discriminator}}
{{classname}} new{{classname}} = new {{classname}}();
Map result2 = tree.traverse(jp.getCodec()).readValueAs(new TypeReference>() {});
String discriminatorValue = (String)result2.get("{{{propertyBaseName}}}");
switch (discriminatorValue) {
{{#mappedModels}}
case "{{{mappingName}}}":
deserialized = tree.traverse(jp.getCodec()).readValueAs({{{modelName}}}.class);
new{{classname}}.setActualInstance(deserialized);
return new{{classname}};
{{/mappedModels}}
default:
log.log(Level.WARNING, String.format("Failed to lookup discriminator value `%s` for {{classname}}. Possible values:{{#mappedModels}} {{{mappingName}}}{{/mappedModels}}", discriminatorValue));
}
{{/discriminator}}
{{/useOneOfDiscriminatorLookup}}
boolean typeCoercion = ctxt.isEnabled(MapperFeature.ALLOW_COERCION_OF_SCALARS);
int match = 0;
JsonToken token = tree.traverse(jp.getCodec()).nextToken();
{{#composedSchemas}}
{{#oneOf}}
// deserialize {{{dataType}}}{{#isNullable}} (nullable){{/isNullable}}
try {
{{^isArray}}
boolean attemptParsing = true;
{{#isPrimitiveType}}
attemptParsing = typeCoercion; //respect type coercion setting
if (!attemptParsing) {
{{#isString}}
attemptParsing |= (token == JsonToken.VALUE_STRING);
{{/isString}}
{{#isInteger}}
attemptParsing |= (token == JsonToken.VALUE_NUMBER_INT);
{{/isInteger}}
{{#isLong}}
attemptParsing |= (token == JsonToken.VALUE_NUMBER_INT);
{{/isLong}}
{{#isShort}}
attemptParsing |= (token == JsonToken.VALUE_NUMBER_INT);
{{/isShort}}
{{#isFloat}}
attemptParsing |= (token == JsonToken.VALUE_NUMBER_FLOAT);
{{/isFloat}}
{{#isDouble}}
attemptParsing |= (token == JsonToken.VALUE_NUMBER_FLOAT);
{{/isDouble}}
{{#isNumber}}
attemptParsing |= (token == JsonToken.VALUE_NUMBER_FLOAT);
{{/isNumber}}
{{#isDecimal}}
attemptParsing |= (token == JsonToken.VALUE_NUMBER_FLOAT);
{{/isDecimal}}
{{#isBoolean}}
attemptParsing |= (token == JsonToken.VALUE_FALSE || token == JsonToken.VALUE_TRUE);
{{/isBoolean}}
{{#isNullable}}
attemptParsing |= (token == JsonToken.VALUE_NULL);
{{/isNullable}}
}
{{/isPrimitiveType}}
if (attemptParsing) {
{{#isMap}}
final TypeReference<{{{dataType}}}> ref = new TypeReference<{{{dataType}}}>(){};
deserialized = tree.traverse(jp.getCodec()).readValueAs(ref);
{{/isMap}}
{{^isMap}}
deserialized = tree.traverse(jp.getCodec()).readValueAs({{{dataType}}}.class);
{{/isMap}}
// TODO: there is no validation against JSON schema constraints
// (min, max, enum, pattern...), this does not perform a strict JSON
// validation, which means the 'match' count may be higher than it should be.
match++;
log.log(Level.FINER, "Input data matches schema '{{{dataType}}}'");
}
{{/isArray}}
{{#isArray}}
if (token == JsonToken.START_ARRAY) {
final TypeReference<{{{dataType}}}> ref = new TypeReference<{{{dataType}}}>(){};
deserialized = tree.traverse(jp.getCodec()).readValueAs(ref);
// TODO: there is no validation against JSON schema constraints
// (min, max, enum, pattern...), this does not perform a strict JSON
// validation, which means the 'match' count may be higher than it should be.
match++;
log.log(Level.FINER, "Input data matches schema '{{{dataType}}}'");
}
{{/isArray}}
} catch (Exception e) {
// deserialization failed, continue
log.log(Level.FINER, "Input data does not match schema '{{{dataType}}}'", e);
}
{{/oneOf}}
{{/composedSchemas}}
if (match == 1) {
{{classname}} ret = new {{classname}}();
ret.setActualInstance(deserialized);
return ret;
}
throw new IOException(String.format("Failed deserialization for {{classname}}: %d classes match result, expected 1", match));
}
/**
* Handle deserialization of the 'null' value.
*/
@Override
public {{classname}} getNullValue(DeserializationContext ctxt) throws JsonMappingException {
{{#isNullable}}
return null;
{{/isNullable}}
{{^isNullable}}
throw new JsonMappingException(ctxt.getParser(), "{{classname}} cannot be null");
{{/isNullable}}
}
}
// store a list of schema names defined in oneOf
public static final Map> schemas = new HashMap<>();
public {{classname}}() {
super("oneOf", {{#isNullable}}Boolean.TRUE{{/isNullable}}{{^isNullable}}Boolean.FALSE{{/isNullable}});
}
{{> libraries/jersey2/additional_properties }}
{{#additionalPropertiesType}}
/**
* Return true if this {{name}} object is equal to o.
*/
@Override
public boolean equals(Object o) {
return super.equals(o) && Objects.equals(this.additionalProperties, (({{classname}})o).additionalProperties);
}
@Override
public int hashCode() {
return Objects.hash(getActualInstance(), isNullable(), getSchemaType(), additionalProperties);
}
{{/additionalPropertiesType}}
{{#composedSchemas}}
{{#oneOf}}
{{^vendorExtensions.x-duplicated-data-type}}
public {{classname}}({{{baseType}}} o) {
super("oneOf", {{#isNullable}}Boolean.TRUE{{/isNullable}}{{^isNullable}}Boolean.FALSE{{/isNullable}});
setActualInstance(o);
}
{{/vendorExtensions.x-duplicated-data-type}}
{{/oneOf}}
{{/composedSchemas}}
static {
{{#oneOf}}
schemas.put("{{{.}}}", new GenericType<{{{.}}}>() {
});
{{/oneOf}}
JSON.registerDescendants({{classname}}.class, Collections.unmodifiableMap(schemas));
{{#discriminator}}
// Initialize and register the discriminator mappings.
Map> mappings = new HashMap<>();
{{#mappedModels}}
mappings.put("{{mappingName}}", {{modelName}}.class);
{{/mappedModels}}
mappings.put("{{name}}", {{classname}}.class);
JSON.registerDiscriminator({{classname}}.class, "{{propertyBaseName}}", mappings);
{{/discriminator}}
}
@Override
public Map> getSchemas() {
return {{classname}}.schemas;
}
/**
* Set the instance that matches the oneOf child schema, check
* the instance parameter is valid against the oneOf child schemas:
* {{#oneOf}}{{{.}}}{{^-last}}, {{/-last}}{{/oneOf}}
*
* It could be an instance of the 'oneOf' schemas.
* The oneOf child schemas may themselves be a composed schema (allOf, anyOf, oneOf).
*/
@Override
public void setActualInstance(Object instance) {
{{#isNullable}}
if (instance == null) {
super.setActualInstance(instance);
return;
}
{{/isNullable}}
{{#composedSchemas}}
{{#oneOf}}
{{^vendorExtensions.x-duplicated-data-type}}
if (JSON.isInstanceOf({{{baseType}}}.class, instance, new HashSet<>())) {
super.setActualInstance(instance);
return;
}
{{/vendorExtensions.x-duplicated-data-type}}
{{/oneOf}}
{{/composedSchemas}}
throw new RuntimeException("Invalid instance type. Must be {{#oneOf}}{{{.}}}{{^-last}}, {{/-last}}{{/oneOf}}");
}
/**
* Get the actual instance, which can be the following:
* {{#oneOf}}{{{.}}}{{^-last}}, {{/-last}}{{/oneOf}}
*
* @return The actual instance ({{#oneOf}}{{{.}}}{{^-last}}, {{/-last}}{{/oneOf}})
*/
@Override
public Object getActualInstance() {
return super.getActualInstance();
}
{{#composedSchemas}}
{{#oneOf}}
{{^vendorExtensions.x-duplicated-data-type-ignoring-erasure}}
/**
* Get the actual instance of `{{{dataType}}}`. If the actual instance is not `{{{dataType}}}`,
* the ClassCastException will be thrown.
*
* @return The actual instance of `{{{dataType}}}`
* @throws ClassCastException if the instance is not `{{{dataType}}}`
*/
public {{{dataType}}} get{{#sanitizeGeneric}}{{{dataType}}}{{/sanitizeGeneric}}() throws ClassCastException {
return ({{{dataType}}})super.getActualInstance();
}
{{/vendorExtensions.x-duplicated-data-type-ignoring-erasure}}
{{/oneOf}}
{{/composedSchemas}}
}
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