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tshrkmd/play_scala_json_sample.scala

Last active December 28, 2015 18:39
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ちょっと雑だけどplay2.2のjsonのバインドサンプル
Raw
play_scala_json_sample.scala
package jp.daneko.json.sample
import org.specs2._
import play.api.libs.json._
import play.api.libs.functional.syntax._
class Sample extends Specification {
def is = s2"""
sampleとして次のようなjsonがある場合
<pre><code class="prettyprint">
${Json.prettyPrint(js)}
</code></pre>
case class にバインドできる1 $e1
case class にバインドできる2 $e2
case class にバインドできる3 $e3
case class にバインドできる3 $e4
"""
val sampleJsonStr = """
|{
| "a" : [
| { "aa":1 },
| { "aa":2 ,"bb" : 2},
| { "aa":3 ,"cc" : 3}
| ],
| "b" : 1,
| "c" : 2,
| "d" : 3,
| "e" : 4,
| "f" : 5,
| "g" : 6,
| "h" : 7,
| "i" : 8,
| "j" : 9,
| "k" : 10,
| "l" : 11,
| "m" : 12,
| "n" : 13,
| "o" : 14,
| "p" : 15,
| "q" : 16,
| "r" : 17,
| "s" : 18,
| "t" : 19,
| "u" : 20,
| "v" : 21,
| "w" : 22,
| "x" : 23,
| "y" : 24,
| "z" : 25
|}
| """.stripMargin
val js = Json.parse(sampleJsonStr)
//case class A(aa: Int, bb: Int)
case class A(aa: Int, bb: Option[Int], cc: Option[Int])
case class AN(
a: List[A],
b: Int,
c: Int,
d: Int,
e: Int,
f: Int,
g: Int,
h: Int,
i: Int,
j: Int,
k: Int,
l: Int,
m: Int,
n: Int)
case class OZ(
o: Int,
p: Int,
q: Int,
r: Int,
s: Int,
t: Int,
u: Int,
v: Int,
w: Int,
x: Int,
y: Int,
z: Int)
case class AZ(an: AN, oz: OZ)
implicit val reada = Json.reads[A]
val readaz = ((
(__ \ 'a).read[List[A]] ~
(__ \ 'b).read[Int] ~
(__ \ 'c).read[Int] ~
(__ \ 'd).read[Int] ~
(__ \ 'e).read[Int] ~
(__ \ 'f).read[Int] ~
(__ \ 'g).read[Int] ~
(__ \ 'h).read[Int] ~
(__ \ 'i).read[Int] ~
(__ \ 'j).read[Int] ~
(__ \ 'k).read[Int] ~
(__ \ 'l).read[Int] ~
(__ \ 'm).read[Int] ~
(__ \ 'n).read[Int]
).apply(AN.apply _) and (
(__ \ 'o).read[Int] ~
(__ \ 'p).read[Int] ~
(__ \ 'q).read[Int] ~
(__ \ 'r).read[Int] ~
(__ \ 's).read[Int] ~
(__ \ 't).read[Int] ~
(__ \ 'u).read[Int] ~
(__ \ 'v).read[Int] ~
(__ \ 'w).read[Int] ~
(__ \ 'x).read[Int] ~
(__ \ 'y).read[Int] ~
(__ \ 'z).read[Int]
).apply(OZ.apply _))(AZ.apply _)
def e1 = {
val res = js.validate[AZ](readaz)
(res.asOpt must beSome).updateMessage(s => s + " : bindできてない").orThrow
(res.asOpt.get.oz.z === 25).updateMessage(s => s + " : 一体なにをbindしたのかね?").orThrow
}
case class AA(a: Int, b: Int, c: Int)
implicit val readA = Json.format[AA]
def e2 = {
val sampleJson = """
|[
| {
| "a" : 1,
| "b" : 2,
| "c" : 3
| },
| {
| "a" : 1,
| "b" : 2,
| "c" : 3
| },
| {
| "a" : 1,
| "b" : 2,
| "c" : 3
| }
|]
| """.stripMargin
val res = Json.parse(sampleJson).validate[List[AA]]
(res.asOpt must beSome).updateMessage(s => s + " : bindできてない").orThrow
res.asOpt.get.size === 3
}
case class AN3(
a: Int,
b: Int,
c: Int,
d: Int,
e: Int,
f: Int,
g: Int,
h: Int,
i: Int,
j: Int,
k: Int,
l: Int,
m: Int,
n: Int)
case class OZ3(
o: Int,
p: Int,
q: Int,
r: Int,
s: Int,
t: Int,
u: Int,
v: Int,
w: Int,
x: Int,
y: Int,
z: Int)
case class AZ3(an: AN3, oz: OZ3)
implicit val readaz3 = ((
(__ \ 'a).read[Int] ~
(__ \ 'b).read[Int] ~
(__ \ 'c).read[Int] ~
(__ \ 'd).read[Int] ~
(__ \ 'e).read[Int] ~
(__ \ 'f).read[Int] ~
(__ \ 'g).read[Int] ~
(__ \ 'h).read[Int] ~
(__ \ 'i).read[Int] ~
(__ \ 'j).read[Int] ~
(__ \ 'k).read[Int] ~
(__ \ 'l).read[Int] ~
(__ \ 'm).read[Int] ~
(__ \ 'n).read[Int]
).apply(AN3.apply _) and (
(__ \ 'o).read[Int] ~
(__ \ 'p).read[Int] ~
(__ \ 'q).read[Int] ~
(__ \ 'r).read[Int] ~
(__ \ 's).read[Int] ~
(__ \ 't).read[Int] ~
(__ \ 'u).read[Int] ~
(__ \ 'v).read[Int] ~
(__ \ 'w).read[Int] ~
(__ \ 'x).read[Int] ~
(__ \ 'y).read[Int] ~
(__ \ 'z).read[Int]
).apply(OZ3.apply _))(AZ3.apply _)
def e3 = {
val sampleJson = """
|[
| {
| "a" : 0,
| "b" : 1,
| "c" : 2,
| "d" : 3,
| "e" : 4,
| "f" : 5,
| "g" : 6,
| "h" : 7,
| "i" : 8,
| "j" : 9,
| "k" : 10,
| "l" : 11,
| "m" : 12,
| "n" : 13,
| "o" : 14,
| "p" : 15,
| "q" : 16,
| "r" : 17,
| "s" : 18,
| "t" : 19,
| "u" : 20,
| "v" : 21,
| "w" : 22,
| "x" : 23,
| "y" : 24,
| "z" : 25
| },
| {
| "a" : 0,
| "b" : 1,
| "c" : 2,
| "d" : 3,
| "e" : 4,
| "f" : 5,
| "g" : 6,
| "h" : 7,
| "i" : 8,
| "j" : 9,
| "k" : 10,
| "l" : 11,
| "m" : 12,
| "n" : 13,
| "o" : 14,
| "p" : 15,
| "q" : 16,
| "r" : 17,
| "s" : 18,
| "t" : 19,
| "u" : 20,
| "v" : 21,
| "w" : 22,
| "x" : 23,
| "y" : 24,
| "z" : 25
| },
| {
| "a" : 0,
| "b" : 1,
| "c" : 2,
| "d" : 3,
| "e" : 4,
| "f" : 5,
| "g" : 6,
| "h" : 7,
| "i" : 8,
| "j" : 9,
| "k" : 10,
| "l" : 11,
| "m" : 12,
| "n" : 13,
| "o" : 14,
| "p" : 15,
| "q" : 16,
| "r" : 17,
| "s" : 18,
| "t" : 19,
| "u" : 20,
| "v" : 21,
| "w" : 22,
| "x" : 23,
| "y" : 24,
| "z" : 25
| }
|]
| """.stripMargin
val res = Json.parse(sampleJson).validate[List[AZ3]]
(res.asOpt must beSome).updateMessage(s => s + " : bindできてない").orThrow
res.asOpt.get.size === 3
}
case class AN4(
a: List[A],
b: Int,
c: Int,
d: Int,
e: Int,
f: Int,
g: Int,
h: Int,
i: Int,
j: Int,
k: Int,
l: Int,
m: Int,
n: Int)
case class OZ4(
o: Int,
p: Int,
q: Int,
r: Int,
s: Int,
t: Int,
u: Int,
v: Int,
w: Int,
x: Int,
y: Int,
z: Int)
case class AZ4(an: AN4, oz: OZ4)
implicit val readaz4 = ((
(__ \ 'a).read[List[A]] ~
(__ \ 'b).read[Int] ~
(__ \ 'c).read[Int] ~
(__ \ 'd).read[Int] ~
(__ \ 'e).read[Int] ~
(__ \ 'f).read[Int] ~
(__ \ 'g).read[Int] ~
(__ \ 'h).read[Int] ~
(__ \ 'i).read[Int] ~
(__ \ 'j).read[Int] ~
(__ \ 'k).read[Int] ~
(__ \ 'l).read[Int] ~
(__ \ 'm).read[Int] ~
(__ \ 'n).read[Int]
).apply(AN4.apply _) and (
(__ \ 'o).read[Int] ~
(__ \ 'p).read[Int] ~
(__ \ 'q).read[Int] ~
(__ \ 'r).read[Int] ~
(__ \ 's).read[Int] ~
(__ \ 't).read[Int] ~
(__ \ 'u).read[Int] ~
(__ \ 'v).read[Int] ~
(__ \ 'w).read[Int] ~
(__ \ 'x).read[Int] ~
(__ \ 'y).read[Int] ~
(__ \ 'z).read[Int]
).apply(OZ4.apply _))(AZ4.apply _)
def e4 = {
val sampleJson = """
|[
| {
| "a" : [
| { "aa":1 },
| { "aa":2 ,"bb" : 2},
| { "aa":3 ,"cc" : 3}
| ],
| "b" : 1,
| "c" : 2,
| "d" : 3,
| "e" : 4,
| "f" : 5,
| "g" : 6,
| "h" : 7,
| "i" : 8,
| "j" : 9,
| "k" : 10,
| "l" : 11,
| "m" : 12,
| "n" : 13,
| "o" : 14,
| "p" : 15,
| "q" : 16,
| "r" : 17,
| "s" : 18,
| "t" : 19,
| "u" : 20,
| "v" : 21,
| "w" : 22,
| "x" : 23,
| "y" : 24,
| "z" : 25
| },
| {
| "a" : [
| { "aa":1 },
| { "aa":2 ,"bb" : 2},
| { "aa":3 ,"cc" : 3}
| ],
| "b" : 1,
| "c" : 2,
| "d" : 3,
| "e" : 4,
| "f" : 5,
| "g" : 6,
| "h" : 7,
| "i" : 8,
| "j" : 9,
| "k" : 10,
| "l" : 11,
| "m" : 12,
| "n" : 13,
| "o" : 14,
| "p" : 15,
| "q" : 16,
| "r" : 17,
| "s" : 18,
| "t" : 19,
| "u" : 20,
| "v" : 21,
| "w" : 22,
| "x" : 23,
| "y" : 24,
| "z" : 25
| },
| {
| "a" : [
| { "aa":1 },
| { "aa":2 ,"bb" : 2},
| { "aa":3 ,"cc" : 3}
| ],
| "b" : 1,
| "c" : 2,
| "d" : 3,
| "e" : 4,
| "f" : 5,
| "g" : 6,
| "h" : 7,
| "i" : 8,
| "j" : 9,
| "k" : 10,
| "l" : 11,
| "m" : 12,
| "n" : 13,
| "o" : 14,
| "p" : 15,
| "q" : 16,
| "r" : 17,
| "s" : 18,
| "t" : 19,
| "u" : 20,
| "v" : 21,
| "w" : 22,
| "x" : 23,
| "y" : 24,
| "z" : 25
| }
|]
| """.stripMargin
val res = Json.parse(sampleJson).validate[List[AZ4]]
(res.asOpt must beSome).updateMessage(s => s + " : bindできてない").orThrow
res.asOpt.get.size === 3
}
}
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