probe sdc by retrieving service model if uuid configured

If system.properties has value for probe.sdc.model.uuid then usd
this value for retrieving service model
otherwise probe only sdc connectivity with sdc2/rest/healthCheck

Issue-ID: VID-378
Signed-off-by: Eylon Malin <eylon.malin@intl.att.com>
Change-Id: Icd1c31217e56a8c0cfa5c2f2bc5f11e0c8dd7ff8
Signed-off-by: Eylon Malin <eylon.malin@intl.att.com>

8 files changed, 293 insertions, 65 deletions

diff --git a/vid-app-common/src/main/java/org/onap/vid/aai/ResponseWithRequestInfo.java b/vid-app-common/src/main/java/org/onap/vid/aai/ResponseWithRequestInfo.kt
index 567099c81..aaa41c2d3 100644
--- a/vid-app-common/src/main/java/org/onap/vid/aai/ResponseWithRequestInfo.java
+++ b/vid-app-common/src/main/java/org/onap/vid/aai/ResponseWithRequestInfo.kt
@@ -18,32 +18,17 @@
  * ============LICENSE_END=========================================================
  */
 
-package org.onap.vid.aai;
+package org.onap.vid.aai
 
-import org.springframework.http.HttpMethod;
+import io.joshworks.restclient.http.HttpResponse
+import org.springframework.http.HttpMethod
 
-import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response
 
-public class ResponseWithRequestInfo {
-    private String requestUrl;
-    private HttpMethod requestHttpMethod;
-    private Response response;
+open class BaseResponseWithRequestInfo(val requestUrl: String?, val requestHttpMethod: HttpMethod)
 
-    public ResponseWithRequestInfo(Response response, String requestUrl, HttpMethod requestHttpMethod) {
-        this.response = response;
-        this.requestUrl = requestUrl;
-        this.requestHttpMethod = requestHttpMethod;
-    }
+class HttpResponseWithRequestInfo<T>(val response: HttpResponse<T>?, requestUrl: String?, requestHttpMethod: HttpMethod) :
+        BaseResponseWithRequestInfo(requestUrl, requestHttpMethod)
 
-    public String getRequestUrl() {
-        return requestUrl;
-    }
-
-    public HttpMethod getRequestHttpMethod() {
-        return requestHttpMethod;
-    }
-
-    public Response getResponse() {
-        return response;
-    }
-}
+class ResponseWithRequestInfo(val response: Response?, requestUrl: String?, requestHttpMethod: HttpMethod) :
+        BaseResponseWithRequestInfo(requestUrl, requestHttpMethod)
diff --git a/vid-app-common/src/main/java/org/onap/vid/asdc/AsdcClient.java b/vid-app-common/src/main/java/org/onap/vid/asdc/AsdcClient.java
index fc04080d9..44257a62e 100644
--- a/vid-app-common/src/main/java/org/onap/vid/asdc/AsdcClient.java
+++ b/vid-app-common/src/main/java/org/onap/vid/asdc/AsdcClient.java
@@ -22,10 +22,11 @@
 package org.onap.vid.asdc;
 
 import io.joshworks.restclient.http.HttpResponse;
-import org.onap.vid.asdc.beans.Service;
-
+import java.io.InputStream;
 import java.nio.file.Path;
 import java.util.UUID;
+import org.onap.vid.aai.HttpResponseWithRequestInfo;
+import org.onap.vid.asdc.beans.Service;
 
 /**
  * The Interface AsdcClient.
@@ -55,6 +56,8 @@ public interface AsdcClient {
 	Path getServiceToscaModel(UUID uuid) throws AsdcCatalogException;
 
 
+	HttpResponseWithRequestInfo<InputStream> getServiceInputStream(UUID serviceUuid, boolean warpException);
+
 	HttpResponse<String> checkSDCConnectivity();
 
 	String getBaseUrl();
diff --git a/vid-app-common/src/main/java/org/onap/vid/asdc/rest/SdcRestClient.java b/vid-app-common/src/main/java/org/onap/vid/asdc/rest/SdcRestClient.java
index a82110744..decf446d6 100644
--- a/vid-app-common/src/main/java/org/onap/vid/asdc/rest/SdcRestClient.java
+++ b/vid-app-common/src/main/java/org/onap/vid/asdc/rest/SdcRestClient.java
@@ -20,11 +20,32 @@
 
 package org.onap.vid.asdc.rest;
 
+import static javax.ws.rs.core.MediaType.APPLICATION_JSON;
+import static javax.ws.rs.core.MediaType.APPLICATION_OCTET_STREAM;
+import static org.onap.portalsdk.core.util.SystemProperties.APP_DISPLAY_NAME;
+import static org.onap.vid.asdc.AsdcClient.URIS.METADATA_URL_TEMPLATE;
+import static org.onap.vid.asdc.AsdcClient.URIS.TOSCA_MODEL_URL_TEMPLATE;
+import static org.onap.vid.client.SyncRestClientInterface.HEADERS.AUTHORIZATION;
+import static org.onap.vid.client.SyncRestClientInterface.HEADERS.CONTENT_TYPE;
+import static org.onap.vid.client.SyncRestClientInterface.HEADERS.X_ECOMP_INSTANCE_ID;
+import static org.onap.vid.utils.Logging.REQUEST_ID_HEADER_KEY;
+import static org.onap.vid.utils.Logging.logRequest;
+
 import com.att.eelf.configuration.EELFLogger;
 import com.google.common.collect.ImmutableMap;
 import io.joshworks.restclient.http.HttpResponse;
 import io.vavr.control.Try;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardCopyOption;
+import java.util.Collections;
+import java.util.Map;
+import java.util.UUID;
 import org.onap.portalsdk.core.util.SystemProperties;
+import org.onap.vid.aai.ExceptionWithRequestInfo;
+import org.onap.vid.aai.HttpResponseWithRequestInfo;
 import org.onap.vid.asdc.AsdcCatalogException;
 import org.onap.vid.asdc.AsdcClient;
 import org.onap.vid.asdc.beans.Service;
@@ -34,26 +55,6 @@ import org.onap.vid.properties.VidProperties;
 import org.onap.vid.utils.Logging;
 import org.springframework.http.HttpMethod;
 
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.StandardCopyOption;
-import java.util.Collections;
-import java.util.Map;
-import java.util.UUID;
-
-import static javax.ws.rs.core.MediaType.APPLICATION_JSON;
-import static javax.ws.rs.core.MediaType.APPLICATION_OCTET_STREAM;
-import static org.onap.portalsdk.core.util.SystemProperties.APP_DISPLAY_NAME;
-import static org.onap.vid.asdc.AsdcClient.URIS.METADATA_URL_TEMPLATE;
-import static org.onap.vid.asdc.AsdcClient.URIS.TOSCA_MODEL_URL_TEMPLATE;
-import static org.onap.vid.client.SyncRestClientInterface.HEADERS.AUTHORIZATION;
-import static org.onap.vid.client.SyncRestClientInterface.HEADERS.CONTENT_TYPE;
-import static org.onap.vid.client.SyncRestClientInterface.HEADERS.X_ECOMP_INSTANCE_ID;
-import static org.onap.vid.utils.Logging.REQUEST_ID_HEADER_KEY;
-import static org.onap.vid.utils.Logging.logRequest;
-
 public class SdcRestClient implements AsdcClient {
 
     private String baseUrl;
@@ -86,17 +87,28 @@ public class SdcRestClient implements AsdcClient {
 
     @Override
     public Path getServiceToscaModel(UUID uuid) throws AsdcCatalogException {
-        String finalUrl = String.format(TOSCA_MODEL_URL_TEMPLATE, baseUrl, path, uuid);
-        logRequest(LOGGER, HttpMethod.GET, finalUrl);
-
         InputStream inputStream = Try
-                .of(() -> syncRestClient.getStream(finalUrl, prepareHeaders(auth, APPLICATION_OCTET_STREAM), Collections.emptyMap()))
+                .of(() -> getServiceInputStream(uuid, false))
                 .getOrElseThrow(AsdcCatalogException::new)
+                .getResponse()
                 .getBody();
 
         return createTmpFile(inputStream);
     }
 
+    @Override
+    public HttpResponseWithRequestInfo<InputStream> getServiceInputStream(UUID serviceUuid, boolean warpException) {
+        String finalUrl = String.format(TOSCA_MODEL_URL_TEMPLATE, baseUrl, path, serviceUuid);
+        logRequest(LOGGER, HttpMethod.GET, finalUrl);
+        try {
+            HttpResponse<InputStream> httpResponse = syncRestClient.getStream(finalUrl, prepareHeaders(auth, APPLICATION_OCTET_STREAM), Collections.emptyMap());
+            return new HttpResponseWithRequestInfo<>(httpResponse, finalUrl, HttpMethod.GET);
+        }
+        catch (RuntimeException exception) {
+            throw warpException ? new ExceptionWithRequestInfo(HttpMethod.GET, finalUrl, exception) : exception;
+        }
+    }
+
 
     @Override
     public HttpResponse<String> checkSDCConnectivity() {
diff --git a/vid-app-common/src/main/java/org/onap/vid/model/probes/HttpRequestMetadata.java b/vid-app-common/src/main/java/org/onap/vid/model/probes/HttpRequestMetadata.java
index 1638a376c..b284b01d9 100644
--- a/vid-app-common/src/main/java/org/onap/vid/model/probes/HttpRequestMetadata.java
+++ b/vid-app-common/src/main/java/org/onap/vid/model/probes/HttpRequestMetadata.java
@@ -22,9 +22,11 @@
 package org.onap.vid.model.probes;
 
 import com.google.common.base.MoreObjects;
-import io.joshworks.restclient.http.HttpResponse;
+import java.nio.charset.StandardCharsets;
+import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.onap.vid.aai.ExceptionWithRequestInfo;
+import org.onap.vid.aai.HttpResponseWithRequestInfo;
 import org.onap.vid.aai.ResponseWithRequestInfo;
 import org.onap.vid.mso.RestObjectWithRequestInfo;
 import org.onap.vid.utils.Logging;
@@ -81,6 +83,19 @@ public class HttpRequestMetadata extends StatusMetadata {
                 duration);
     }
 
+    public HttpRequestMetadata(HttpResponseWithRequestInfo response, String description, long duration, boolean readRawData) {
+        super(description, duration);
+        this.httpMethod = response.getRequestHttpMethod();
+        this.url = response.getRequestUrl();
+        this.httpCode = response.getResponse().getStatus();
+        if (readRawData) {
+            try {
+                this.rawData = IOUtils.toString(response.getResponse().getRawBody(), StandardCharsets.UTF_8.name());
+            } catch (Exception e) {
+                //Nothing to do here
+            }
+        }
+    }
 
 
     public HttpMethod getHttpMethod() {
diff --git a/vid-app-common/src/main/java/org/onap/vid/services/VidServiceImpl.java b/vid-app-common/src/main/java/org/onap/vid/services/VidServiceImpl.java
index 9d6f74def..a5988a156 100644
--- a/vid-app-common/src/main/java/org/onap/vid/services/VidServiceImpl.java
+++ b/vid-app-common/src/main/java/org/onap/vid/services/VidServiceImpl.java
@@ -20,12 +20,22 @@
  */
 package org.onap.vid.services;
 
+import static org.onap.vid.model.probes.ExternalComponentStatus.Component.SDC;
+import static org.onap.vid.properties.Features.FLAG_SERVICE_MODEL_CACHE;
+
 import com.google.common.cache.CacheBuilder;
 import com.google.common.cache.CacheLoader;
 import com.google.common.cache.LoadingCache;
 import io.joshworks.restclient.http.HttpResponse;
+import java.io.InputStream;
+import java.nio.file.Path;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
 import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
 import org.onap.sdc.tosca.parser.exceptions.SdcToscaParserException;
+import org.onap.vid.aai.ExceptionWithRequestInfo;
+import org.onap.vid.aai.HttpResponseWithRequestInfo;
 import org.onap.vid.asdc.AsdcCatalogException;
 import org.onap.vid.asdc.AsdcClient;
 import org.onap.vid.asdc.beans.Service;
@@ -34,20 +44,16 @@ import org.onap.vid.asdc.parser.ToscaParserImpl;
 import org.onap.vid.asdc.parser.ToscaParserImpl2;
 import org.onap.vid.exceptions.GenericUncheckedException;
 import org.onap.vid.model.ServiceModel;
+import org.onap.vid.model.probes.ErrorMetadata;
 import org.onap.vid.model.probes.ExternalComponentStatus;
 import org.onap.vid.model.probes.HttpRequestMetadata;
+import org.onap.vid.model.probes.StatusMetadata;
+import org.onap.vid.properties.VidProperties;
 import org.onap.vid.utils.Logging;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpMethod;
 import org.togglz.core.manager.FeatureManager;
 
-import java.nio.file.Path;
-import java.util.UUID;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.TimeUnit;
-
-import static org.onap.vid.properties.Features.FLAG_SERVICE_MODEL_CACHE;
-
 /**
  * The Class VidController.
  */
@@ -150,6 +156,20 @@ public class VidServiceImpl implements VidService {
 
     @Override
     public ExternalComponentStatus probeComponent() {
+        UUID modelUUID;
+        try {
+            modelUUID = UUID.fromString(VidProperties.getPropertyWithDefault(
+                VidProperties.PROBE_SDC_MODEL_UUID,""));
+        }
+        //in case of no such PROBE_SDC_MODEL_UUID property or non uuid there we check only sdc connectivity
+        catch (Exception e) {
+            return probeComponentBySdcConnectivity();
+        }
+
+        return probeSdcByGettingModel(modelUUID);
+    }
+
+    public ExternalComponentStatus probeComponentBySdcConnectivity() {
         long startTime = System.currentTimeMillis();
         ExternalComponentStatus externalComponentStatus;
         try {
@@ -158,10 +178,49 @@ public class VidServiceImpl implements VidService {
                     System.currentTimeMillis() - startTime);
             externalComponentStatus = new ExternalComponentStatus(ExternalComponentStatus.Component.SDC, stringHttpResponse.isSuccessful(), httpRequestMetadata);
         } catch (Exception e) {
-            HttpRequestMetadata httpRequestMetadata = new HttpRequestMetadata(HttpMethod.GET, 0,
-                    AsdcClient.URIS.HEALTH_CHECK_ENDPOINT, "", Logging.exceptionToDescription(e), System.currentTimeMillis() - startTime);
-            externalComponentStatus = new ExternalComponentStatus(ExternalComponentStatus.Component.SDC, false, httpRequestMetadata);
+            ErrorMetadata errorMetadata = new ErrorMetadata(Logging.exceptionToDescription(e), System.currentTimeMillis() - startTime);
+            externalComponentStatus = new ExternalComponentStatus(ExternalComponentStatus.Component.SDC, false, errorMetadata);
         }
         return externalComponentStatus;
     }
+
+    protected ExternalComponentStatus probeSdcByGettingModel(UUID modelUUID) {
+        final long startTime = System.currentTimeMillis();
+
+        HttpResponseWithRequestInfo<InputStream> response = null;
+        try {
+            response = asdcClient.getServiceInputStream(modelUUID, true);
+            int responseStatusCode = response.getResponse().getStatus();
+
+            if (responseStatusCode == 404) {
+                return errorStatus(response, startTime, "model " + modelUUID + " not found in SDC" +
+                    " (consider updating vid probe configuration '" + VidProperties.PROBE_SDC_MODEL_UUID + "')");
+            } else if (responseStatusCode >= 400) {
+                return errorStatus(response, startTime, "error while retrieving model " + modelUUID + " from SDC");
+            } else {
+                InputStream inputStreamEntity = response.getResponse().getRawBody();//validate we can read the input steam from the response
+                if (inputStreamEntity.read() <= 0) {
+                    return errorStatus(response, startTime, "error reading model " + modelUUID + " from SDC");
+                } else {
+                    // RESPONSE IS SUCCESS
+                    return new ExternalComponentStatus(SDC, true,
+                        new HttpRequestMetadata(response, "OK", startTime, false));
+                }
+            }
+        } catch (ExceptionWithRequestInfo e) {
+            return new ExternalComponentStatus(SDC, false,
+                new HttpRequestMetadata(e, System.currentTimeMillis() - startTime));
+        } catch (Exception e) {
+            return errorStatus(response, startTime, Logging.exceptionToDescription(e));
+        }
+    }
+
+    private ExternalComponentStatus errorStatus(HttpResponseWithRequestInfo<InputStream> response, long startTime, String description) {
+        final long duration = System.currentTimeMillis() - startTime;
+        StatusMetadata statusMetadata = (response == null) ?
+            new ErrorMetadata(description, duration) :
+            new HttpRequestMetadata(response, description, duration, true);
+
+        return new ExternalComponentStatus(SDC, false, statusMetadata);
+    }
 }
diff --git a/vid-app-common/src/test/java/org/onap/vid/aai/AaiClientTest.java b/vid-app-common/src/test/java/org/onap/vid/aai/AaiClientTest.java
index b2d8e85fa..9793862ca 100644
--- a/vid-app-common/src/test/java/org/onap/vid/aai/AaiClientTest.java
+++ b/vid-app-common/src/test/java/org/onap/vid/aai/AaiClientTest.java
@@ -56,6 +56,7 @@ import java.net.URI;
 import java.security.cert.CertificateException;
 import java.util.ArrayList;
 import java.util.Map;
+import java.util.Optional;
 import java.util.function.BiConsumer;
 import java.util.function.Function;
 import java.util.stream.Stream;
diff --git a/vid-app-common/src/main/java/org/onap/vid/asdc/local/LocalAsdcClient.java b/vid-app-common/src/test/java/org/onap/vid/asdc/local/LocalAsdcClient.java
index ce1bbe930..2f5853e47 100644
--- a/vid-app-common/src/main/java/org/onap/vid/asdc/local/LocalAsdcClient.java
+++ b/vid-app-common/src/test/java/org/onap/vid/asdc/local/LocalAsdcClient.java
@@ -27,6 +27,7 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 import io.joshworks.restclient.http.HttpResponse;
 import java.io.File;
 import java.io.IOException;
+import java.io.InputStream;
 import java.io.UnsupportedEncodingException;
 import java.net.URLDecoder;
 import java.nio.file.Path;
@@ -34,6 +35,7 @@ import java.nio.file.Paths;
 import java.util.UUID;
 import org.json.JSONArray;
 import org.json.JSONObject;
+import org.onap.vid.aai.HttpResponseWithRequestInfo;
 import org.onap.vid.asdc.AsdcCatalogException;
 import org.onap.vid.asdc.AsdcClient;
 import org.onap.vid.asdc.beans.Service;
@@ -162,6 +164,10 @@ public class LocalAsdcClient implements AsdcClient {
         return HttpResponse.fallback("");
     }
 
+    @Override
+    public HttpResponseWithRequestInfo<InputStream> getServiceInputStream(UUID serviceUuid, boolean warpException) {
+        return null;
+    }
 
     @Override
     public String getBaseUrl(){
diff --git a/vid-app-common/src/test/java/org/onap/vid/services/VidServiceImplTest.java b/vid-app-common/src/test/java/org/onap/vid/services/VidServiceImplTest.java
index ff6b7f0b1..65712b423 100644
--- a/vid-app-common/src/test/java/org/onap/vid/services/VidServiceImplTest.java
+++ b/vid-app-common/src/test/java/org/onap/vid/services/VidServiceImplTest.java
@@ -21,27 +21,44 @@
 package org.onap.vid.services;
 
 import static java.util.stream.Collectors.toMap;
+import static org.apache.commons.lang3.ObjectUtils.defaultIfNull;
 import static org.hamcrest.CoreMatchers.containsString;
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.instanceOf;
 import static org.hamcrest.CoreMatchers.is;
 import static org.hamcrest.Matchers.not;
 import static org.hamcrest.Matchers.nullValue;
 import static org.hamcrest.core.IsSame.sameInstance;
 import static org.junit.Assert.assertThat;
+import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.any;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
+import static org.testng.AssertJUnit.assertTrue;
 
+import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import io.joshworks.restclient.http.HttpResponse;
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
 import java.util.Map;
 import java.util.UUID;
+import java.util.function.BiConsumer;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import javax.ws.rs.ProcessingException;
+import org.apache.commons.lang3.RandomUtils;
 import org.apache.commons.lang3.reflect.FieldUtils;
+import org.apache.commons.lang3.tuple.Triple;
 import org.mockito.Answers;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 import org.onap.sdc.tosca.parser.exceptions.SdcToscaParserException;
+import org.onap.vid.aai.ExceptionWithRequestInfo;
+import org.onap.vid.aai.HttpResponseWithRequestInfo;
 import org.onap.vid.asdc.AsdcCatalogException;
 import org.onap.vid.asdc.AsdcClient;
 import org.onap.vid.asdc.beans.Service;
@@ -50,7 +67,10 @@ import org.onap.vid.model.ServiceModel;
 import org.onap.vid.model.probes.ExternalComponentStatus;
 import org.onap.vid.model.probes.HttpRequestMetadata;
 import org.onap.vid.properties.Features;
+import org.onap.vid.testUtils.TestUtils;
+import org.springframework.http.HttpMethod;
 import org.testng.annotations.BeforeMethod;
+import org.testng.annotations.DataProvider;
 import org.testng.annotations.Test;
 import org.togglz.core.manager.FeatureManager;
 
@@ -151,10 +171,7 @@ public class VidServiceImplTest {
 
     @Test
     public void shouldCheckConnectionToSdc() {
-        when(asdcClientMock.checkSDCConnectivity()).thenReturn(httpResponse);
-        when(httpResponse.isSuccessful()).thenReturn(true);
-        when(httpResponse.getBody()).thenReturn("sampleBody");
-
+        mockGoodSdcConnectivityResponse();
 
         ExternalComponentStatus externalComponentStatus = vidService.probeComponent();
 
@@ -164,6 +181,12 @@ public class VidServiceImplTest {
         assertThat(metadata.getRawData(), is("sampleBody"));
     }
 
+    private void mockGoodSdcConnectivityResponse() {
+        when(asdcClientMock.checkSDCConnectivity()).thenReturn(httpResponse);
+        when(httpResponse.isSuccessful()).thenReturn(true);
+        when(httpResponse.getBody()).thenReturn("sampleBody");
+    }
+
     @Test
     public void shouldProperlyHandleNotWorkingSDCConnection(){
         when(asdcClientMock.checkSDCConnectivity()).thenThrow(new RuntimeException("not working"));
@@ -173,5 +196,129 @@ public class VidServiceImplTest {
         assertThat(externalComponentStatus.isAvailable(), is(false));
         assertThat(externalComponentStatus.getMetadata().getDescription(),containsString("not working"));
     }
+
+    @Test
+    public void shouldNotProbeBySdcConnectionIfProbeUuidConfigured() throws Exception {
+        TestUtils.testWithSystemProperty(
+            "probe.sdc.model.uuid",
+            UUID.randomUUID().toString(),
+            ()->{
+                mockGoodSdcConnectivityResponse(); //no mocking for probeSdcByGettingModel
+                ExternalComponentStatus externalComponentStatus = vidService.probeComponent();
+                assertThat(externalComponentStatus.isAvailable(), is(false));
+            }
+        );
+    }
+
+
+    @Test
+    public void givenProbeUUID_whenAsdcClientReturnNormal_thenProbeComponentReturnAvailableAnswer() throws Exception {
+
+        final UUID uuidForProbe = UUID.randomUUID();
+        final HttpResponse<InputStream> mockResponse = mock(HttpResponse.class);
+        responseSetupper(mockResponse, 200, new ByteArrayInputStream(RandomUtils.nextBytes(66000)));
+        when(asdcClientMock.getServiceInputStream(eq(uuidForProbe), eq(true))).thenReturn(
+            new HttpResponseWithRequestInfo(mockResponse, "my pretty url", HttpMethod.GET)
+        );
+
+        TestUtils.testWithSystemProperty(
+            "probe.sdc.model.uuid",
+            uuidForProbe.toString(),
+            ()-> {
+
+                ExternalComponentStatus sdcComponentStatus = vidService.probeComponent();
+                assertTrue(sdcComponentStatus.isAvailable());
+                assertThat(sdcComponentStatus.getComponent(), is(ExternalComponentStatus.Component.SDC));
+                assertThat(sdcComponentStatus.getMetadata().getDescription(), equalTo("OK"));
+                assertThat(sdcComponentStatus.getMetadata(), instanceOf(HttpRequestMetadata.class));
+
+                HttpRequestMetadata componentStatusMetadata = ((HttpRequestMetadata) sdcComponentStatus.getMetadata());
+                assertThat(componentStatusMetadata.getHttpMethod(), equalTo(HttpMethod.GET));
+                assertThat(componentStatusMetadata.getHttpCode(), equalTo(200));
+                assertThat(componentStatusMetadata.getUrl(), equalTo("my pretty url"));
+            }
+        );
+    }
+
+    private static void responseSetupper(HttpResponse<InputStream> r, Integer httpCode, InputStream body) {
+        when(r.getStatus()).thenReturn(httpCode);
+        when(r.getRawBody()).thenReturn(body);
+    }
+
+    @DataProvider
+    public static Object[][] executionResults() {
+        final BiConsumer<AsdcClient, HttpResponse<InputStream>> defaultClientSetup = (c, r) ->
+            when(c.getServiceInputStream(any(), eq(true))).thenReturn(new HttpResponseWithRequestInfo(r, "foo url", HttpMethod.GET));
+
+        final ByteArrayInputStream defaultResponseBody = new ByteArrayInputStream(RandomUtils.nextBytes(200));
+
+        return Stream.<Triple<HttpRequestMetadata, BiConsumer<AsdcClient, HttpResponse<InputStream>>, Consumer<HttpResponse<InputStream>>>>of(
+
+            Triple.of(
+                new HttpRequestMetadata(null, 200, null, null, "IllegalStateException", 0),
+                defaultClientSetup,
+                r -> {
+                    when(r.getStatus()).thenReturn(200);
+                    when(r.getRawBody()).thenThrow(new IllegalStateException("good news for people who love bad news"));
+                }
+            ),
+
+            Triple.of(
+                new HttpRequestMetadata(null, 200, null, null, "error reading model", 0),
+                defaultClientSetup,
+                r -> responseSetupper(r, 200, new ByteArrayInputStream(new byte[0]))
+            ),
+//
+            Triple.of(
+                new HttpRequestMetadata(null, 200, null, null, "NullPointerException", 0),
+                defaultClientSetup,
+                r -> responseSetupper(r, 200, null)
+            ),
+//
+            Triple.of(
+                new HttpRequestMetadata(null, 0, "bar url", null, "java.net.ConnectException: Connection refused", 0),
+                (c, r) ->
+                    when(c.getServiceInputStream(any(), eq(true))).thenThrow(new ExceptionWithRequestInfo(HttpMethod.GET, "bar url",
+                        new ProcessingException("java.net.ConnectException: Connection refused: connect"))),
+                r -> responseSetupper(r, 200, defaultResponseBody)
+            ),
+
+            Triple.of(
+                new HttpRequestMetadata(null, 500, null, null, "error while retrieving model", 0),
+                defaultClientSetup,
+                r -> responseSetupper(r, 500, defaultResponseBody)
+            ),
+
+            Triple.of(
+                new HttpRequestMetadata(null, 404, null, null, "updating vid probe configuration", 0),
+                defaultClientSetup,
+                r -> responseSetupper(r, 404, defaultResponseBody)
+            )
+
+        ).map(t -> ImmutableList.of(t.getLeft(), t.getMiddle(), t.getRight()).toArray()).collect(Collectors.toList()).toArray(new Object[][]{});
+    }
+
+    @Test(dataProvider = "executionResults")
+    public void whenClientReturnWithError_thenProbeSdcByGettingModelDescribes(HttpRequestMetadata expectedMetadata,
+        BiConsumer<AsdcClient, HttpResponse<InputStream>> clientSetup,
+        Consumer<HttpResponse<InputStream>> responseSetup) {
+
+        final HttpResponse<InputStream> mockResponse = mock(HttpResponse.class);
+        clientSetup.accept(asdcClientMock, mockResponse);
+        responseSetup.accept(mockResponse);
+
+        ExternalComponentStatus sdcComponentStatus = vidService.probeSdcByGettingModel(UUID.randomUUID());
+        assertThat(sdcComponentStatus.getComponent(), is(ExternalComponentStatus.Component.SDC));
+        assertThat(sdcComponentStatus.getMetadata(), instanceOf(HttpRequestMetadata.class));
+
+        HttpRequestMetadata componentStatusMetadata = ((HttpRequestMetadata) sdcComponentStatus.getMetadata());
+        assertThat(componentStatusMetadata.getDescription(), containsString(defaultIfNull(expectedMetadata.getDescription(), "OK")));
+        assertThat(componentStatusMetadata.getHttpMethod(), equalTo(defaultIfNull(expectedMetadata.getHttpMethod(), HttpMethod.GET)));
+        assertThat(componentStatusMetadata.getHttpCode(), equalTo(expectedMetadata.getHttpCode()));
+        assertThat(componentStatusMetadata.getUrl(), equalTo(defaultIfNull(expectedMetadata.getUrl(), "foo url")));
+
+        assertThat(sdcComponentStatus.isAvailable(), is(false));
+    }
+
 }