tomee-8.0/pt/examples/mp-custom-healthcheck.html - tomee-site-pub - Git at Google

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     <div id="main-block" class="container main-block">
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             <div class='page-header'>

               <h1>MicroProfile Custom Health Check</h1>
             </div>
           </div>
         </div>
         <div class="row">

             <div class="col-md-12">
                 <div class="paragraph">
 <p>Este é um exemplo de como usar MicroProfile Custom Health Check em TomEE.</p>
 </div>
 <h4 id="_health_feature" class="discrete">Health Feature</h4>
 <div class="paragraph">
 <p>Os links de status (Health checks) são usados para verificar os estados dos serviços e recursos que uma aplicação depende ou mesmo expor seus
 status. Por exemplo, em um ambiente de cluster, onde um nó não íntegro precisa ser descartado (terminated, shutdown) e eventualmente
 substituído por outra instância íntegra.</p>
 </div>
 <div class="paragraph">
 <p>Por padrão, <a href="https://github.com/eclipse/microprofile-health">microprofile-health-api</a> proporciona a saida básica de um nó simplesmente
 acessando o endpoint <a href="http://host:port/health" class="bare">http://host:port/health</a>.</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre class="highlight"><code class="language-json" data-lang="json">{"checks":[],"outcome":"UP","status":"UP"}</code></pre>
 </div>
 </div>
 <div class="paragraph">
 <p>Para fornecer uma saída personalizada, digamos que temos uma API do tempo, e se o serviço se tornar indisponível,
 devemos relatar o serviço como inativo (DOWN).</p>
 </div>
 <div class="paragraph">
 <p>Para iniciar com uma saída personalizada, é necessário implementar a interface <a href="https://github.com/eclipse/microprofile-health/blob/master/api/src/main/java/org/eclipse/microprofile/health/HealthCheck.java">HealthCheck</a>,
 transforme a classe em um bean gerenciado anotando-a com <code>@ApplicationScoped</code> e <code>@Health</code> para ativar a verificação personalizada.
 Veja mais detalhes aqui <a href="https://github.com/apache/geronimo-health/blob/master/geronimo-health/src/main/java/org/apache/geronimo/microprofile/impl/health/cdi/GeronimoHealthExtension.java">GeronimoHealthExtension.java</a></p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre class="highlight"><code class="language-java" data-lang="java">@Health
 @ApplicationScoped
 public class WeatherServiceHealthCheck implements HealthCheck {

     @Inject WeatherGateway weatherGateway;

     @Override
     public HealthCheckResponse call() {
         HealthCheckResponseBuilder responseBuilder = HealthCheckResponse.named("OpenWeatherMap");
         try {
             WeatherApiStatus status = weatherGateway.getApiStatus();
             return responseBuilder.withData("weatherServiceApiUrl", status.getUrl())
                     .withData("weatherServiceApiVersion", status.getVersion())
                     .withData("weatherServiceMessage", status.getMessage())
                     .up().build();
         } catch (WeatherException e) {
             return responseBuilder.withData("weatherServiceErrorMessage", e.getMessage()).down().build();
         }
     }
 }</code></pre>
 </div>
 </div>
 <div class="paragraph">
 <p>No exemplo acima, o link de status é <a href="https://openweathermap.org/appid">OpenWeatherMap</a> (<em>somente ilustrativo</em>) que fornece uma
 plano de assinatura para acessar seus serviços e, se o limite de chamadas for excedido, a API ficará indisponível até sua
 renovação.</p>
 </div>
 <h3 id="_exemplos" class="discrete">Exemplos</h3>
 <div class="listingblock">
 <div class="title">Executando o aplicativo</div>
 <div class="content">
 <pre>    mvn clean install tomee:run</pre>
 </div>
 </div>
 <h4 id="_exemplo_1" class="discrete">Exemplo 1</h4>
 <div class="paragraph">
 <p>Quando acessado o endpoint /health, OpenWeatherMap nos diz que nossas chamadas restantes estão acabando e que devemos tomar
 uma ação antes que fique indisponível.</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>curl http://localhost:8080/mp-custom-healthcheck/health</pre>
 </div>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre class="highlight"><code class="language-json" data-lang="json">{
    "checks":[
       {
          "data":{
             "weatherServiceApiVersion":"2.5",
             "weatherServiceMessage":"Your account will become unavailable soon due to limitation of your
                                     subscription type. Remaining API calls are 1",
             "weatherServiceApiUrl":"http://api.openweathermap.org/data/2.5/"
          },
          "name":"OpenWeatherMap",
          "state":"UP"
       }
    ],
    "outcome":"UP",
    "status":"UP"
 }</code></pre>
 </div>
 </div>
 <h4 id="_exemplo_2" class="discrete">Exemplo 2</h4>
 <div class="paragraph">
 <p>A API do tempo ainda está funcionando bem.</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>curl http://localhost:8080/mp-custom-healthcheck/weather/day/status</pre>
 </div>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre class="highlight"><code class="language-text" data-lang="text">Hi, today is a sunny day!</code></pre>
 </div>
 </div>
 <h4 id="_exemplo_3" class="discrete">Exemplo 3</h4>
 <div class="paragraph">
 <p>Quando acessamos novamente o endpoint /health, OpenWeatherMap nos diz que nossa conta está temporariamente bloqueada e esse
 serviço é relatado como inativo (DOWN).</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>curl http://localhost:8080/mp-custom-healthcheck/health</pre>
 </div>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre class="highlight"><code class="language-json" data-lang="json">{
    "checks":[
       {
          "data":{
             "weatherServiceErrorMessage":"Your account is temporary blocked due to exceeding of
             requests limitation of your subscription type. Please choose the proper subscription
             http://openweathermap.org/price"
          },
          "name":"weatherservice",
          "state":"DOWN"
       }
    ],
    "outcome":"DOWN",
    "status":"DOWN"
 }</code></pre>
 </div>
 </div>
 <h4 id="_exemplo_4" class="discrete">Exemplo 4</h4>
 <div class="paragraph">
 <p>A API do tempo parou.</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>curl http://localhost:8080/mp-custom-healthcheck/weather/day/status</pre>
 </div>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre class="highlight"><code class="language-text" data-lang="text">Weather Service is unavailable at moment, retry later.</code></pre>
 </div>
 </div>
 <h5 id="_executando_os_testes" class="discrete">Executando os testes</h5>
 <div class="paragraph">
 <p>Você pode também testar usando <a href="src/test/java/org/superbiz/rest/WeatherServiceTest.java">WeatherServiceTest.java</a> disponível no projeto.</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>mvn clean test</pre>
 </div>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>[INFO] Results:
 [INFO]
 [INFO] Tests run: 4, Failures: 0, Errors: 0, Skipped:</pre>
 </div>
 </div>
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	<div id="main-block" class="container main-block">
	<div class="row title">
	<div class="col-md-12">
	<div class='page-header'>

	<h1>MicroProfile Custom Health Check</h1>
	</div>
	</div>
	</div>
	<div class="row">

	<div class="col-md-12">
	<div class="paragraph">
	<p>Este é um exemplo de como usar MicroProfile Custom Health Check em TomEE.</p>
	</div>
	<h4 id="_health_feature" class="discrete">Health Feature</h4>
	<div class="paragraph">
	<p>Os links de status (Health checks) são usados para verificar os estados dos serviços e recursos que uma aplicação depende ou mesmo expor seus
	status. Por exemplo, em um ambiente de cluster, onde um nó não íntegro precisa ser descartado (terminated, shutdown) e eventualmente
	substituído por outra instância íntegra.</p>
	</div>
	<div class="paragraph">
	<p>Por padrão, <a href="https://github.com/eclipse/microprofile-health">microprofile-health-api</a> proporciona a saida básica de um nó simplesmente
	acessando o endpoint <a href="http://host:port/health" class="bare">http://host:port/health</a>.</p>
	</div>
	<div class="listingblock">
	<div class="content">
	<pre class="highlight"><code class="language-json" data-lang="json">{"checks":[],"outcome":"UP","status":"UP"}</code></pre>
	</div>
	</div>
	<div class="paragraph">
	<p>Para fornecer uma saída personalizada, digamos que temos uma API do tempo, e se o serviço se tornar indisponível,
	devemos relatar o serviço como inativo (DOWN).</p>
	</div>
	<div class="paragraph">
	<p>Para iniciar com uma saída personalizada, é necessário implementar a interface <a href="https://github.com/eclipse/microprofile-health/blob/master/api/src/main/java/org/eclipse/microprofile/health/HealthCheck.java">HealthCheck</a>,
	transforme a classe em um bean gerenciado anotando-a com <code>@ApplicationScoped</code> e <code>@Health</code> para ativar a verificação personalizada.
	Veja mais detalhes aqui <a href="https://github.com/apache/geronimo-health/blob/master/geronimo-health/src/main/java/org/apache/geronimo/microprofile/impl/health/cdi/GeronimoHealthExtension.java">GeronimoHealthExtension.java</a></p>
	</div>
	<div class="listingblock">
	<div class="content">
	<pre class="highlight"><code class="language-java" data-lang="java">@Health
	@ApplicationScoped
	public class WeatherServiceHealthCheck implements HealthCheck {

	@Inject WeatherGateway weatherGateway;

	@Override
	public HealthCheckResponse call() {
	HealthCheckResponseBuilder responseBuilder = HealthCheckResponse.named("OpenWeatherMap");
	try {
	WeatherApiStatus status = weatherGateway.getApiStatus();
	return responseBuilder.withData("weatherServiceApiUrl", status.getUrl())
	.withData("weatherServiceApiVersion", status.getVersion())
	.withData("weatherServiceMessage", status.getMessage())
	.up().build();
	} catch (WeatherException e) {
	return responseBuilder.withData("weatherServiceErrorMessage", e.getMessage()).down().build();
	}
	}
	}</code></pre>
	</div>
	</div>
	<div class="paragraph">
	<p>No exemplo acima, o link de status é <a href="https://openweathermap.org/appid">OpenWeatherMap</a> (<em>somente ilustrativo</em>) que fornece uma
	plano de assinatura para acessar seus serviços e, se o limite de chamadas for excedido, a API ficará indisponível até sua
	renovação.</p>
	</div>
	<h3 id="_exemplos" class="discrete">Exemplos</h3>
	<div class="listingblock">
	<div class="title">Executando o aplicativo</div>
	<div class="content">
	<pre> mvn clean install tomee:run</pre>
	</div>
	</div>
	<h4 id="_exemplo_1" class="discrete">Exemplo 1</h4>
	<div class="paragraph">
	<p>Quando acessado o endpoint /health, OpenWeatherMap nos diz que nossas chamadas restantes estão acabando e que devemos tomar
	uma ação antes que fique indisponível.</p>
	</div>
	<div class="listingblock">
	<div class="content">
	<pre>curl http://localhost:8080/mp-custom-healthcheck/health</pre>
	</div>
	</div>
	<div class="listingblock">
	<div class="content">
	<pre class="highlight"><code class="language-json" data-lang="json">{
	"checks":[
	{
	"data":{
	"weatherServiceApiVersion":"2.5",
	"weatherServiceMessage":"Your account will become unavailable soon due to limitation of your
	subscription type. Remaining API calls are 1",
	"weatherServiceApiUrl":"http://api.openweathermap.org/data/2.5/"
	},
	"name":"OpenWeatherMap",
	"state":"UP"
	}
	],
	"outcome":"UP",
	"status":"UP"
	}</code></pre>
	</div>
	</div>
	<h4 id="_exemplo_2" class="discrete">Exemplo 2</h4>
	<div class="paragraph">
	<p>A API do tempo ainda está funcionando bem.</p>
	</div>
	<div class="listingblock">
	<div class="content">
	<pre>curl http://localhost:8080/mp-custom-healthcheck/weather/day/status</pre>
	</div>
	</div>
	<div class="listingblock">
	<div class="content">
	<pre class="highlight"><code class="language-text" data-lang="text">Hi, today is a sunny day!</code></pre>
	</div>
	</div>
	<h4 id="_exemplo_3" class="discrete">Exemplo 3</h4>
	<div class="paragraph">
	<p>Quando acessamos novamente o endpoint /health, OpenWeatherMap nos diz que nossa conta está temporariamente bloqueada e esse
	serviço é relatado como inativo (DOWN).</p>
	</div>
	<div class="listingblock">
	<div class="content">
	<pre>curl http://localhost:8080/mp-custom-healthcheck/health</pre>
	</div>
	</div>
	<div class="listingblock">
	<div class="content">
	<pre class="highlight"><code class="language-json" data-lang="json">{
	"checks":[
	{
	"data":{
	"weatherServiceErrorMessage":"Your account is temporary blocked due to exceeding of
	requests limitation of your subscription type. Please choose the proper subscription
	http://openweathermap.org/price"
	},
	"name":"weatherservice",
	"state":"DOWN"
	}
	],
	"outcome":"DOWN",
	"status":"DOWN"
	}</code></pre>
	</div>
	</div>
	<h4 id="_exemplo_4" class="discrete">Exemplo 4</h4>
	<div class="paragraph">
	<p>A API do tempo parou.</p>
	</div>
	<div class="listingblock">
	<div class="content">
	<pre>curl http://localhost:8080/mp-custom-healthcheck/weather/day/status</pre>
	</div>
	</div>
	<div class="listingblock">
	<div class="content">
	<pre class="highlight"><code class="language-text" data-lang="text">Weather Service is unavailable at moment, retry later.</code></pre>
	</div>
	</div>
	<h5 id="_executando_os_testes" class="discrete">Executando os testes</h5>
	<div class="paragraph">
	<p>Você pode também testar usando <a href="src/test/java/org/superbiz/rest/WeatherServiceTest.java">WeatherServiceTest.java</a> disponível no projeto.</p>
	</div>
	<div class="listingblock">
	<div class="content">
	<pre>mvn clean test</pre>
	</div>
	</div>
	<div class="listingblock">
	<div class="content">
	<pre>[INFO] Results:
	[INFO]
	[INFO] Tests run: 4, Failures: 0, Errors: 0, Skipped:</pre>
	</div>
	</div>
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