Add code to support interaction with other ONAP components.

Issue-ID: USECASEUI-696
Change-Id: Ic403827c7dc443bb20d0e0971155ce3a36730be3
Signed-off-by: hekeguang <hekeguang@chinamobile.com>

3 files changed, 171 insertions, 0 deletions

diff --git a/intentanalysis/pom.xml b/intentanalysis/pom.xml
index 88c5de6..56efe9a 100644
--- a/intentanalysis/pom.xml
+++ b/intentanalysis/pom.xml
@@ -164,6 +164,21 @@
             <version>2.0.206</version>
             <scope>test</scope>
         </dependency>
+	<dependency>
+            <groupId>com.squareup.retrofit2</groupId>
+            <artifactId>retrofit</artifactId>
+            <version>2.7.2</version>
+        </dependency>
+        <dependency>
+            <groupId>com.squareup.retrofit2</groupId>
+            <artifactId>converter-jackson</artifactId>
+            <version>2.3.0</version>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>fastjson</artifactId>
+            <version>2.0.6</version>
+        </dependency>
     </dependencies>
     <build>
         <plugins>
diff --git a/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/util/CustomTrustManager.java b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/util/CustomTrustManager.java
new file mode 100644
index 0000000..daed733
--- /dev/null
+++ b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/util/CustomTrustManager.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2022 CMCC, Inc. and others. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onap.usecaseui.intentanalysis.utils;
+
+import javax.net.ssl.X509TrustManager;
+import java.security.cert.CertificateException;
+import java.security.cert.X509Certificate;
+
+public class CustomTrustManager implements X509TrustManager {
+
+    @Override
+    public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
+
+    }
+
+    @Override
+    public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
+
+    }
+
+    @Override
+    public X509Certificate[] getAcceptedIssuers() {
+        return new X509Certificate[0];
+    }
+}
diff --git a/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/util/RestfulServices.java b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/util/RestfulServices.java
new file mode 100644
index 0000000..f37021f
--- /dev/null
+++ b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/util/RestfulServices.java
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2022 CMCC, Inc. and others. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onap.usecaseui.intentanalysis.utils;
+
+import okhttp3.MediaType;
+import okhttp3.OkHttpClient;
+import okhttp3.RequestBody;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import retrofit2.Retrofit;
+import retrofit2.converter.jackson.JacksonConverterFactory;
+
+import javax.net.ssl.*;
+import javax.servlet.http.HttpServletRequest;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.security.SecureRandom;
+import java.util.concurrent.TimeUnit;
+
+public class RestfulServices {
+
+    private static final Logger logger = LoggerFactory.getLogger(RestfulServices.class);
+
+    public static <T> T create(String baseUrl, Class<T> clazz) {
+        Retrofit retrofit = new Retrofit.Builder()
+                .baseUrl(baseUrl)
+                .addConverterFactory(JacksonConverterFactory.create())
+                .build();
+        return retrofit.create(clazz);
+    }
+
+    public static <T> T create(Class<T> clazz) {
+        //Set the interface response time
+
+        OkHttpClient okHttpClient = new OkHttpClient.Builder()
+                .connectTimeout(300, TimeUnit.SECONDS)
+                .readTimeout(300, TimeUnit.SECONDS)
+                .sslSocketFactory(getSSLSocketFactory(), new CustomTrustManager())
+                .hostnameVerifier(getHostnameVerifier())
+                .build();
+
+        String msbUrl = getMsbAddress();
+        Retrofit retrofit = new Retrofit.Builder()
+                .baseUrl("https://" + msbUrl + "/")
+                .client(okHttpClient)
+                .addConverterFactory(JacksonConverterFactory.create())
+                .build();
+
+        return retrofit.create(clazz);
+    }
+
+    public static String getMsbAddress() {
+        String msbAddress = System.getenv("MSB_ADDR");
+        if (msbAddress == null) {
+            return "";
+        }
+        return msbAddress;
+    }
+
+    public static RequestBody extractBody(HttpServletRequest request) throws IOException {
+        BufferedReader br = null;
+        StringBuilder sb = new StringBuilder("");
+        try {
+            br = request.getReader();
+            String str;
+            while ((str = br.readLine()) != null) {
+                sb.append(str);
+            }
+            br.close();
+            logger.info("The request body content is: " + sb.toString());
+            return RequestBody.create(MediaType.parse("application/json"), sb.toString());
+        } catch (Exception e) {
+            logger.info("RestfulServices occur exection,this content is: " + e.getMessage());
+            return RequestBody.create(MediaType.parse("application/json"), sb.toString());
+        } finally {
+            if (null != br) {
+                br.close();
+            }
+        }
+    }
+
+    public static SSLSocketFactory getSSLSocketFactory() {
+        SSLSocketFactory ssfFactory = null;
+
+        try {
+            SSLContext sc = SSLContext.getInstance("TLS");
+            sc.init(null, new TrustManager[]{new CustomTrustManager()}, new SecureRandom());
+
+            ssfFactory = sc.getSocketFactory();
+        } catch (Exception e) {
+        }
+
+        return ssfFactory;
+    }
+
+    public static HostnameVerifier getHostnameVerifier() {
+        HostnameVerifier   hostnameVerifier= new HostnameVerifier() {
+            public boolean verify(String hostname, SSLSession session) {
+                return true;
+            }
+        };
+        return hostnameVerifier;
+    }
+}
+