我想将Actuator添加到我的Spring应用程序(而不是Spring Boot)。 确切地说,我需要使用执行器HealthCheck,因此我将能够创建具有不同健康指标的bean,并且他们将在/ health上创建完整的健康检查。
起初我尝试将@EndpointAutoConfiguration
添加到我的@Configuration
课程,但是有豆子冲突,因为我有我的海关豆,我真的需要,所以没有必要除HealthIndicatorAutoConfiguration
答案 0 :(得分:0)
可能的解决方案是使用关键字段创建自定义HealthIndicator和HealthIndicatorCollector。还添加了一个servlet:
contextHandler.addServlet(new ServletHolder(platformHealthCheckServlet), "/healthcheck");
这将从上下文中收集所有自定义HealthIndicators并在/ healthcheck端点处创建良好的状态json:
@Autowired
public CustomHealthCheckServlet(Map<String, CustomHealthIndicator> healthIndicatorMap, ObjectMapper objectMapper) {
this.healthIndicatorMap = Collections.unmodifiableMap(healthIndicatorMap);
this.mapper = objectMapper;
}
CustomHealthIndicator ,它添加了 setCritical 方法:
public interface CustomHealthIndicator extends HealthIndicator {
void setCritical(boolean var1);
}
CustomAbstractHealthIndicator 覆盖了 AbstractHealthIndicator 中的 doHealthCheck 方法,向其构建器添加了关键细节并创建了自己的抽象方法 doCheck >:
public abstract class CustomAbstractHealthIndicator extends AbstractHealthIndicator
implements CustomHealthIndicator {
private boolean critical = false;
public CustomAbstractHealthIndicator() {
}
public void setCritical(boolean critical) {
this.critical = critical;
}
@Override
protected void doHealthCheck(Builder builder) throws Exception {
builder.withDetail("critical", this.critical);
this.doCheck(builder);
}
protected abstract Builder doCheck(Builder var1) throws Exception;
}
还有另一个Custom类,它根据每个运行状况的严重状态来聚合运行状况bean,并根据整个运行状况的关键状态来计算整个应用程序的状态,而忽略不重要但可用于监视的指标:
public class CustomHealthAggregator implements HealthAggregator {
private List<String> statusOrder;
public CustomHealthAggregator() {
setStatusOrder(Status.DOWN, Status.OUT_OF_SERVICE, Status.UP,
Status.UNKNOWN);
}
public void setStatusOrder(Status... statusOrder) {
String[] order = new String[statusOrder.length];
for (int i = 0; i < statusOrder.length; i++) {
order[i] = statusOrder[i].getCode();
}
setStatusOrder(Arrays.asList(order));
}
public void setStatusOrder(List<String> statusOrder) {
Assert.notNull(statusOrder, "StatusOrder must not be null");
this.statusOrder = statusOrder;
}
protected Status aggregateStatus(List<Status> candidates) {
// Only sort those status instances that we know about
List<Status> filteredCandidates = new ArrayList<Status>();
for (Status candidate : candidates) {
if (this.statusOrder.contains(candidate.getCode())) {
filteredCandidates.add(candidate);
}
}
// If no status is given return UP
if (filteredCandidates.isEmpty()) {
return Status.UP;
}
// Sort given Status instances by configured order
Collections.sort(filteredCandidates,
new StatusComparator(this.statusOrder));
return filteredCandidates.get(0);
}
@Override
public Health aggregate(Map<String, Health> healths) {
List<Status> statusCandidates = healths.entrySet()
.stream()
.filter(healthEntry ->
healthEntry.getValue().getDetails().get("critical").equals(true))
.map(e -> e.getValue().getStatus())
.collect(Collectors.toList());
Status status = aggregateStatus(statusCandidates);
Map<String, Object> details = new LinkedMap();
details.put("version", AppVersionUtil.getAppVersion());
details.putAll(aggregateDetails(healths));
return new Health.Builder(status, details).build();
}
protected Map<String, Object> aggregateDetails(Map<String, Health> healths)
{
return new LinkedHashMap<String, Object>(healths);
}
private class StatusComparator implements Comparator<Status> {
private final List<String> statusOrder;
StatusComparator(List<String> statusOrder) {
this.statusOrder = statusOrder;
}
@Override
public int compare(Status s1, Status s2) {
int i1 = this.statusOrder.indexOf(s1.getCode());
int i2 = this.statusOrder.indexOf(s2.getCode());
return (i1 < i2 ? -1 : (i1 == i2 ? s1.getCode().compareTo(s2.getCode()) : 1));
}
}
}