Removed Dependency: httpclient

Issue-ID: HOLMES-414
Signed-off-by: tang peng <tang.peng5@zte.com.cn>
Change-Id: I30ce6a5ecbb6fa881d46ee78bc7fc2fb198b46db

5 files changed, 119 insertions, 58 deletions

diff --git a/engine-d/src/main/java/org/onap/holmes/dsa/dmaappolling/Subscriber.java b/engine-d/src/main/java/org/onap/holmes/dsa/dmaappolling/Subscriber.java
index 245647d..2c9d88b 100644
--- a/engine-d/src/main/java/org/onap/holmes/dsa/dmaappolling/Subscriber.java
+++ b/engine-d/src/main/java/org/onap/holmes/dsa/dmaappolling/Subscriber.java
@@ -19,18 +19,13 @@ package org.onap.holmes.dsa.dmaappolling;
 import lombok.Getter;
 import lombok.Setter;
 import lombok.extern.slf4j.Slf4j;
-import org.apache.http.HttpResponse;
-import org.apache.http.client.methods.HttpGet;
-import org.apache.http.impl.client.CloseableHttpClient;
 import org.onap.holmes.common.api.stat.VesAlarm;
 import org.onap.holmes.common.dropwizard.ioc.utils.ServiceLocatorHolder;
 import org.onap.holmes.common.exception.CorrelationException;
-import org.onap.holmes.common.utils.GsonUtil;
-import org.onap.holmes.common.utils.HttpsUtils;
+import org.onap.holmes.common.utils.JerseyClient;
 
 import java.io.IOException;
 import java.util.ArrayList;
-import java.util.HashMap;
 import java.util.List;
 import java.util.UUID;
 
@@ -83,27 +78,11 @@ public class Subscriber {
     }
 
     private List<String> getDMaaPData() throws Exception {
-        String response;
-        CloseableHttpClient closeableHttpClient = null;
-        HttpGet httpGet = new HttpGet(url + "/" + consumerGroup + "/" + consumer + "?timeout=" + period);
-        try {
-            closeableHttpClient = HttpsUtils.getConditionalHttpsClient(timeout);
-            HttpResponse httpResponse = HttpsUtils
-                    .get(httpGet, new HashMap<>(), closeableHttpClient);
-            response = HttpsUtils.extractResponseEntity(httpResponse);
-        } catch (Exception e) {
-            throw e;
-        } finally {
-            httpGet.releaseConnection();
-            if (closeableHttpClient != null) {
-                try {
-                    closeableHttpClient.close();
-                } catch (IOException e) {
-                    log.warn("Failed to close http client!");
-                }
-            }
-        }
-        return GsonUtil.jsonToBean(response, List.class);
+        return new JerseyClient()
+                .path(consumerGroup)
+                .path(consumer)
+                .queryParam("timeout", period)
+                .get(url, List.class);
     }
 
     private List<VesAlarm> extractVesAlarm(List<String> responseEntity) throws IOException {
diff --git a/engine-d/src/main/java/org/onap/holmes/engine/EngineDActiveApp.java b/engine-d/src/main/java/org/onap/holmes/engine/EngineDActiveApp.java
index 135334a..37b5c07 100644
--- a/engine-d/src/main/java/org/onap/holmes/engine/EngineDActiveApp.java
+++ b/engine-d/src/main/java/org/onap/holmes/engine/EngineDActiveApp.java
@@ -1,5 +1,5 @@
 /**
- * Copyright 2017-2018 ZTE Corporation.
+ * Copyright 2017-2021 ZTE Corporation.
  * <p>
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,6 +19,7 @@ import io.dropwizard.setup.Environment;
 import lombok.extern.slf4j.Slf4j;
 import org.onap.holmes.common.config.MicroServiceConfig;
 import org.onap.holmes.common.dropwizard.ioc.bundle.IOCApplication;
+import org.onap.holmes.common.utils.CommonUtils;
 import org.onap.holmes.common.utils.transactionid.TransactionIdFilter;
 import org.onap.holmes.engine.dcae.DcaeConfigurationPolling;
 
@@ -42,7 +43,7 @@ public class EngineDActiveApp extends IOCApplication<EngineDAppConfig> {
         if (!"1".equals(System.getenv("TESTING"))) {
             ScheduledExecutorService service = Executors.newSingleThreadScheduledExecutor();
             service.scheduleAtFixedRate(
-                    new DcaeConfigurationPolling(MicroServiceConfig.getEnv(MicroServiceConfig.HOSTNAME)), 0,
+                    new DcaeConfigurationPolling(CommonUtils.getEnv(MicroServiceConfig.HOSTNAME)), 0,
                     DcaeConfigurationPolling.POLLING_PERIOD, TimeUnit.MILLISECONDS);
         }
 
diff --git a/engine-d/src/main/java/org/onap/holmes/engine/Initializer.java b/engine-d/src/main/java/org/onap/holmes/engine/Initializer.java
index 2e13be3..9eca2a6 100644
--- a/engine-d/src/main/java/org/onap/holmes/engine/Initializer.java
+++ b/engine-d/src/main/java/org/onap/holmes/engine/Initializer.java
@@ -18,7 +18,7 @@ package org.onap.holmes.engine;
 
 import org.jvnet.hk2.annotations.Service;
 import org.onap.holmes.common.exception.CorrelationException;
-import org.onap.holmes.common.utils.HttpsUtils;
+import org.onap.holmes.common.utils.CommonUtils;
 import org.onap.holmes.common.utils.MsbRegister;
 import org.onap.msb.sdk.discovery.entity.MicroServiceInfo;
 import org.onap.msb.sdk.discovery.entity.Node;
@@ -30,7 +30,9 @@ import javax.inject.Inject;
 import java.util.HashSet;
 import java.util.Set;
 
-import static org.onap.holmes.common.config.MicroServiceConfig.*;
+import static org.onap.holmes.common.config.MicroServiceConfig.getMicroServiceIpAndPort;
+import static org.onap.holmes.common.utils.CommonUtils.getEnv;
+import static org.onap.holmes.common.utils.CommonUtils.isIpAddress;
 
 @Service
 public class Initializer {
@@ -61,13 +63,13 @@ public class Initializer {
         msinfo.setProtocol("REST");
         msinfo.setVisualRange("0|1");
         msinfo.setLb_policy("round-robin");
-        msinfo.setEnable_ssl(HttpsUtils.isHttpsEnabled());
+        msinfo.setEnable_ssl(CommonUtils.isHttpsEnabled());
         Set<Node> nodes = new HashSet<>();
         Node node = new Node();
         node.setIp(isIpAddress(serviceIpAndPort[0]) ? serviceIpAndPort[0] : getEnv("HOLMES_ENGINE_MGMT_SERVICE_HOST"));
         node.setPort("9102");
         /* Following codes will cause an unregistration from MSB (due to MSB malfunction), comment them for now
-        String msbAddrTemplate = (HttpsUtils.isHttpsEnabled() ? "https" : "http")
+        String msbAddrTemplate = (CommonUtils.isHttpsEnabled() ? "https" : "http")
                 + "://%s:%s/api/holmes-engine-mgmt/v1/healthcheck";
         node.setCheckType("HTTP");
         node.setCheckUrl(String.format(msbAddrTemplate, serviceAddrInfo[0], "9102"));
diff --git a/engine-d/src/test/java/org/onap/holmes/dsa/dmaappolling/SubscriberTest.java b/engine-d/src/test/java/org/onap/holmes/dsa/dmaappolling/SubscriberTest.java
index 3301b89..4cf1caf 100644
--- a/engine-d/src/test/java/org/onap/holmes/dsa/dmaappolling/SubscriberTest.java
+++ b/engine-d/src/test/java/org/onap/holmes/dsa/dmaappolling/SubscriberTest.java
@@ -15,48 +15,49 @@
  */
 package org.onap.holmes.dsa.dmaappolling;
 
-import org.apache.http.HttpResponse;
-import org.apache.http.client.methods.HttpGet;
-import org.apache.http.impl.client.CloseableHttpClient;
-import org.easymock.EasyMock;
 import org.glassfish.hk2.api.ServiceLocator;
 import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.ExpectedException;
 import org.junit.runner.RunWith;
 import org.onap.holmes.common.api.stat.AlarmAdditionalField;
 import org.onap.holmes.common.api.stat.VesAlarm;
 import org.onap.holmes.common.dropwizard.ioc.utils.ServiceLocatorHolder;
-import org.onap.holmes.common.utils.GsonUtil;
-import org.onap.holmes.common.utils.HttpsUtils;
+import org.onap.holmes.common.exception.CorrelationException;
+import org.onap.holmes.common.utils.JerseyClient;
 import org.powermock.api.easymock.PowerMock;
 import org.powermock.core.classloader.annotations.PowerMockIgnore;
 import org.powermock.core.classloader.annotations.PrepareForTest;
 import org.powermock.modules.junit4.PowerMockRunner;
 
 import java.util.ArrayList;
-import java.util.HashMap;
 import java.util.List;
 
+import static org.easymock.EasyMock.*;
 import static org.hamcrest.CoreMatchers.*;
 import static org.junit.Assert.assertThat;
 
 @RunWith(PowerMockRunner.class)
-@PrepareForTest({ServiceLocatorHolder.class, ServiceLocator.class, HttpsUtils.class, Subscriber.class})
+@PrepareForTest({ServiceLocatorHolder.class, ServiceLocator.class, Subscriber.class})
 @PowerMockIgnore("javax.net.ssl.*")
 public class SubscriberTest {
 
     private DMaaPResponseUtil util = new DMaaPResponseUtil();
 
+    @Rule
+    public ExpectedException thrown = ExpectedException.none();
+
     @Before
     public void init() {
         PowerMock.mockStatic(ServiceLocatorHolder.class);
         ServiceLocator serviceLocator = PowerMock.createMock(ServiceLocator.class);
-        EasyMock.expect(ServiceLocatorHolder.getLocator()).andReturn(serviceLocator).anyTimes();
-        EasyMock.expect(serviceLocator.getService(DMaaPResponseUtil.class)).andReturn(util).anyTimes();
+        expect(ServiceLocatorHolder.getLocator()).andReturn(serviceLocator).anyTimes();
+        expect(serviceLocator.getService(DMaaPResponseUtil.class)).andReturn(util).anyTimes();
     }
 
     @Test
-    public void subscribe() throws Exception {
+    public void subscribe_normal() throws Exception {
         VesAlarm vesAlarm = new VesAlarm();
         vesAlarm.setDomain("ONAP");
         vesAlarm.setEventId("123");
@@ -119,17 +120,12 @@ public class SubscriberTest {
 
         List<String> responseList = new ArrayList<>();
         responseList.add(eventString);
-        String responseJson = GsonUtil.beanToJson(responseList);
-
-        PowerMock.mockStatic(HttpsUtils.class);
-        CloseableHttpClient mockedCloseableHttpClient = PowerMock.createMock(CloseableHttpClient.class);
-        HttpResponse httpResponse = PowerMock.createMock(HttpResponse.class);
-        EasyMock.expect(HttpsUtils.getConditionalHttpsClient(15000)).andReturn(mockedCloseableHttpClient);
-        EasyMock.expect(HttpsUtils.get(EasyMock.anyObject(HttpGet.class),
-                EasyMock.anyObject(HashMap.class), EasyMock.anyObject(CloseableHttpClient.class))).andReturn(httpResponse);
-        EasyMock.expect(HttpsUtils.extractResponseEntity(httpResponse)).andReturn(responseJson);
-        mockedCloseableHttpClient.close();
-        EasyMock.expectLastCall();
+
+        JerseyClient mockedClient = PowerMock.createMock(JerseyClient.class);
+        PowerMock.expectNew(JerseyClient.class).andReturn(mockedClient);
+        expect(mockedClient.path(anyString())).andReturn(mockedClient).times(2);
+        expect(mockedClient.queryParam(anyString(), anyInt())).andReturn(mockedClient);
+        expect(mockedClient.get(anyString(), anyObject())).andReturn(responseList);
 
         PowerMock.replayAll();
 
@@ -145,6 +141,91 @@ public class SubscriberTest {
     }
 
     @Test
+    public void subscribe_retrieve_data_exception() throws Exception {
+        thrown.expect(CorrelationException.class);
+        thrown.expectMessage("Failed to get data from DMaaP.");
+
+        VesAlarm vesAlarm = new VesAlarm();
+        vesAlarm.setDomain("ONAP");
+        vesAlarm.setEventId("123");
+        vesAlarm.setEventName("Event-123");
+        vesAlarm.setEventType("EventType");
+        vesAlarm.setLastEpochMicrosec(1000L);
+        vesAlarm.setNfcNamingCode("123");
+        vesAlarm.setNfNamingCode("123");
+        vesAlarm.setPriority("high");
+        vesAlarm.setReportingEntityId("ID-123");
+        vesAlarm.setReportingEntityName("Name-123");
+        vesAlarm.setSequence(1);
+        vesAlarm.setSourceId("Source-123");
+        vesAlarm.setSourceName("Source-123");
+        vesAlarm.setStartEpochMicrosec(500L);
+        vesAlarm.setVersion(1L);
+        List<AlarmAdditionalField> alarmAdditionalFields = new ArrayList<>();
+        AlarmAdditionalField field = new AlarmAdditionalField();
+        field.setName("addInfo");
+        field.setValue("addInfo");
+        alarmAdditionalFields.add(field);
+        vesAlarm.setAlarmAdditionalInformation(alarmAdditionalFields);
+        vesAlarm.setAlarmCondition("alarmCondition");
+        vesAlarm.setAlarmInterfaceA("alarmInterfaceA");
+        vesAlarm.setEventCategory("eventCategory");
+        vesAlarm.setEventSeverity("eventSeverity");
+        vesAlarm.setEventSourceType("eventSourceType");
+        vesAlarm.setFaultFieldsVersion(1L);
+        vesAlarm.setSpecificProblem("specificProblem");
+        vesAlarm.setVfStatus("vfStatus");
+
+        String eventString = "{\"event\": {\"commonEventHeader\": {" +
+                "\"domain\": \"ONAP\"," +
+                "\"eventId\": \"123\"," +
+                "\"eventName\": \"Event-123\"," +
+                "\"eventType\": \"EventType\"," +
+                "\"lastEpochMicrosec\": 1000," +
+                "\"nfcNamingCode\": \"123\"," +
+                "\"nfNamingCode\": \"123\"," +
+                "\"priority\": \"high\"," +
+                "\"reportingEntityId\": \"ID-123\"," +
+                "\"reportingEntityName\": \"Name-123\"," +
+                "\"sequence\": 1," +
+                "\"sourceId\": \"Source-123\"," +
+                "\"sourceName\": \"Source-123\"," +
+                "\"startEpochMicrosec\": 500," +
+                "\"version\": 1" +
+                "}," +
+                " \"faultFields\" : {" +
+                "\"alarmAdditionalInformation\": [{\"name\":\"addInfo\", \"value\":\"addInfo\"}]," +
+                "\"alarmCondition\": \"alarmCondition\"," +
+                "\"alarmInterfaceA\": \"alarmInterfaceA\"," +
+                "\"eventCategory\": \"eventCategory\"," +
+                "\"eventSeverity\": \"eventSeverity\"," +
+                "\"eventSourceType\": \"eventSourceType\"," +
+                "\"faultFieldsVersion\": 1," +
+                "\"specificProblem\": \"specificProblem\"," +
+                "\"vfStatus\": \"vfStatus\"" +
+                "}}}";
+
+        List<String> responseList = new ArrayList<>();
+        responseList.add(eventString);
+
+        JerseyClient mockedClient = PowerMock.createMock(JerseyClient.class);
+        PowerMock.expectNew(JerseyClient.class).andReturn(mockedClient);
+        expect(mockedClient.path(anyString())).andReturn(mockedClient).times(2);
+        expect(mockedClient.queryParam(anyString(), anyInt())).andReturn(mockedClient);
+        expect(mockedClient.get(anyString(), anyObject())).andThrow(new RuntimeException());
+
+        PowerMock.replayAll();
+
+        Subscriber subscriber = new Subscriber();
+        subscriber.setUrl("https://www.onap.org");
+        subscriber.setConsumerGroup("group");
+        subscriber.setConsumer("consumer");
+        List<VesAlarm> vesAlarms = subscriber.subscribe();
+
+        PowerMock.verifyAll();
+    }
+
+    @Test
     public void testSetterAndGetter() {
 
         PowerMock.replayAll();
diff --git a/engine-d/src/test/java/org/onap/holmes/engine/InitializerTest.java b/engine-d/src/test/java/org/onap/holmes/engine/InitializerTest.java
index e1915e6..d6d0b67 100644
--- a/engine-d/src/test/java/org/onap/holmes/engine/InitializerTest.java
+++ b/engine-d/src/test/java/org/onap/holmes/engine/InitializerTest.java
@@ -22,13 +22,11 @@ import org.onap.holmes.common.utils.MsbRegister;
 import org.onap.msb.sdk.discovery.entity.MicroServiceInfo;
 import org.powermock.api.easymock.PowerMock;
 import org.powermock.core.classloader.annotations.PrepareForTest;
-import org.powermock.core.classloader.annotations.SuppressStaticInitializationFor;
 import org.powermock.modules.junit4.PowerMockRunner;
 import org.powermock.reflect.internal.WhiteboxImpl;
 
 @RunWith(PowerMockRunner.class)
 @PrepareForTest(MicroServiceConfig.class)
-@SuppressStaticInitializationFor("org.onap.holmes.common.utils.HttpsUtils")
 public class InitializerTest {
 
     @Test
@@ -38,7 +36,7 @@ public class InitializerTest {
 
         PowerMock.mockStaticPartial(MicroServiceConfig.class, "getMicroServiceIpAndPort", "getEnv");
         EasyMock.expect(MicroServiceConfig.getMicroServiceIpAndPort()).andReturn(new String[]{"127.0.0.1", "443"});
-        EasyMock.expect(MicroServiceConfig.getEnv("ENABLE_ENCRYPT")).andReturn("true");
+        System.setProperty("ENABLE_ENCRYPT", "true");
 
         mockedMsbRegister.register2Msb(EasyMock.anyObject(MicroServiceInfo.class));
         EasyMock.expectLastCall();