Package io.dropwizard.jersey.params

Class AbstractParam<T>

java.lang.Object

io.dropwizard.jersey.params.AbstractParam<T>

Type Parameters:

T - the type of value wrapped by the parameter

Direct Known Subclasses:

InstantParam, InstantSecondParam, IntParam, LocalDateParam, LocalDateTimeParam, LocalTimeParam, LongParam, NonEmptyStringParam, OffsetDateTimeParam, UUIDParam, YearMonthParam, YearParam, ZonedDateTimeParam, ZoneIdParam

public abstract class AbstractParam<T>
extends Object

An abstract base class from which to build Jersey parameter classes.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractParam(@Nullable String input)	Given an input value from a client, creates a parameter wrapping its parsed value.
protected	AbstractParam(@Nullable String input, String parameterName)	Given an input value from a client, creates a parameter wrapping its parsed value.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
protected @Nullable javax.ws.rs.core.Response	error(@Nullable String input, Exception e)	Deprecated. instead of returning a Response from this method, subclasses should override errorMessage(java.lang.Exception) and getErrorStatus() to allow a WebApplicationException to be thrown which is mapped to a response using the exception mappers.
protected String	errorMessage(Exception e)	Given a string representation which was unable to be parsed and the exception thrown, produce an error message to be sent to the client.
protected ErrorMessage	generateErrorMessage(@Nullable String input, Exception e)	Generates an ErrorMessage to return to the client.
T	get()	Returns the underlying value.
protected javax.ws.rs.core.Response.Status	getErrorStatus()	Given a string representation which was unable to be parsed, produce a Response.Status for the Response to be sent to the client.
int	hashCode()
protected javax.ws.rs.core.MediaType	mediaType()	Deprecated. the media type should be set by the exception mapper instead
protected abstract T	parse(@Nullable String input)	Given a string representation, parse it and return an instance of the parameter type.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

AbstractParam

protected AbstractParam(@Nullable String input)

Given an input value from a client, creates a parameter wrapping its parsed value.

Parameters:

input - an input value from a client request, might be null

AbstractParam

protected AbstractParam(@Nullable String input,
                        String parameterName)

Given an input value from a client, creates a parameter wrapping its parsed value.

Parameters:

input - an input value from a client request, might be null

parameterName - name of the parameter with the provided value

Method Detail

generateErrorMessage

protected ErrorMessage generateErrorMessage(@Nullable String input,
                                            Exception e)

Generates an ErrorMessage to return to the client.

Parameters:

input - the raw input value

e - the exception thrown while parsing input

Returns:

the ErrorMessage with the message and status to return to the client

error

@Deprecated
protected @Nullable javax.ws.rs.core.Response error(@Nullable String input,
                                                    Exception e)

Deprecated.

instead of returning a Response from this method, subclasses should override errorMessage(java.lang.Exception) and getErrorStatus() to allow a WebApplicationException to be thrown which is mapped to a response using the exception mappers.

Deprecated - instead of throwing a WebApplicationException that contains a response with an entity, AbstractParam now throws a WebApplicationException that contains a message and status code, and can be mapped to a response using exception mappers. This method is kept for backwards compatibility with user-defined AbstractParam implementations that implement custom error behavior by overriding this method.

Given a string representation which was unable to be parsed and the exception thrown, produce a Response to be sent to the client.

Parameters:

input - the raw input value

e - the exception thrown while parsing input

Returns:

the Response to be sent to the client, or null to allow AbstractParam to throw a WebApplicationException that contains a message and status code.

mediaType

@Deprecated
protected javax.ws.rs.core.MediaType mediaType()

Deprecated.

the media type should be set by the exception mapper instead

Deprecated - the media type should be set by the exception mapper instead. This method is no longer called by AbstractParam.

Returns:

not used

errorMessage

protected String errorMessage(Exception e)

Given a string representation which was unable to be parsed and the exception thrown, produce an error message to be sent to the client.

Parameters:

e - the exception thrown while parsing input

Returns:

the error message to be sent the client

getErrorStatus

protected javax.ws.rs.core.Response.Status getErrorStatus()

Given a string representation which was unable to be parsed, produce a Response.Status for the Response to be sent to the client.

Returns:

the HTTP Response.Status of the error message

parse

protected abstract T parse(@Nullable String input)
                    throws Exception

Given a string representation, parse it and return an instance of the parameter type.

Parameters:

input - the raw input

Returns:

input, parsed as an instance of T

Throws:

Exception - if there is an error parsing the input

get

public T get()

Returns the underlying value.

Returns:

the underlying value

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object