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| #!/usr/bin/env perl
# 言語: perl
# バージョン: 5.36以上
# 依存: Moo, JSON, Time::HiRes（cpanmでインストール）
use v5.36;
package ResponseRole {
use Moo::Role;
requires 'render';
}
package SuccessResponse {
use Moo;
use JSON qw(encode_json);
with 'ResponseRole';
has data => (is => 'ro', required => 1);
sub render($self) {
my $body = encode_json({
success => JSON::true,
message => 'リクエストが正常に処理されました',
data => $self->data,
});
return "HTTP/1.1 200 OK\nContent-Type: application/json\n\n$body";
}
}
package ErrorResponse {
use Moo;
use JSON qw(encode_json);
with 'ResponseRole';
has status => (is => 'ro', required => 1);
has error_code => (is => 'ro', required => 1);
has message => (is => 'ro', required => 1);
sub render($self) {
my $body = encode_json({
success => JSON::false,
error => $self->message,
code => $self->error_code,
});
return sprintf(
"HTTP/1.1 %s\nContent-Type: application/json\n\n%s",
$self->status, $body,
);
}
}
package RateLimitResponse {
use Moo;
use JSON qw(encode_json);
with 'ResponseRole';
has retry_after => (is => 'ro', default => sub { 60 });
sub render($self) {
my $body = encode_json({
success => JSON::false,
error => 'リクエスト数が上限を超えました',
code => 'RATE_LIMIT_EXCEEDED',
retry_after => $self->retry_after,
});
return sprintf(
"HTTP/1.1 429 Too Many Requests\nContent-Type: application/json\nRetry-After: %d\n\n%s",
$self->retry_after, $body,
);
}
}
package ServerErrorResponse {
use Moo;
use JSON qw(encode_json);
with 'ResponseRole';
has error_id => (is => 'ro', required => 1);
sub render($self) {
my $body = encode_json({
success => JSON::false,
error => 'サーバー内部エラーが発生しました',
code => 'INTERNAL_ERROR',
error_id => $self->error_id,
});
return "HTTP/1.1 500 Internal Server Error\nContent-Type: application/json\n\n$body";
}
}
package Scenario {
use Moo;
use Time::HiRes qw(gettimeofday tv_interval);
sub create_response($self) {
die "create_response must be implemented by subclass";
}
sub scenario_name($self) {
my $class = ref($self);
$class =~ s/Scenario$//;
return $class;
}
sub log_request($self) {
my $name = $self->scenario_name;
my $timestamp = localtime();
say STDERR "[$timestamp] Processing: $name";
}
sub log_complete($self, $elapsed) {
my $name = $self->scenario_name;
my $timestamp = localtime();
say STDERR "[$timestamp] Completed: $name (${elapsed}ms)";
}
sub execute($self) {
my $start = [gettimeofday];
$self->log_request;
my $response = $self->create_response;
my $elapsed = int(tv_interval($start) * 1000);
$self->log_complete($elapsed);
return $response->render;
}
}
package SuccessScenario {
use Moo;
extends 'Scenario';
sub create_response($self) {
return SuccessResponse->new(
data => { id => 1, name => 'サンプルアイテム' },
);
}
}
package NotFoundScenario {
use Moo;
extends 'Scenario';
sub create_response($self) {
return ErrorResponse->new(
status => '404 Not Found',
error_code => 'NOT_FOUND',
message => 'リソースが見つかりません',
);
}
}
package RateLimitScenario {
use Moo;
extends 'Scenario';
has retry_after => (is => 'ro', default => sub { 60 });
sub create_response($self) {
return RateLimitResponse->new(
retry_after => $self->retry_after,
);
}
}
package ServerErrorScenario {
use Moo;
extends 'Scenario';
sub create_response($self) {
my $error_id = sprintf("ERR-%06d", int(rand(1000000)));
return ServerErrorResponse->new(error_id => $error_id);
}
}
for my $scenario_class (qw(
SuccessScenario
NotFoundScenario
RateLimitScenario
ServerErrorScenario
)) {
say "=== $scenario_class ===";
my $scenario = $scenario_class->new;
say $scenario->execute;
say "";
}
|
