Refactoring of Cmpv2Client code for sending CertRequest

Issue-ID: AAF-1036
Signed-off-by: EmmettCox <emmett.cox@est.tech>
Change-Id: Ic0d95b35abb3ca2406b77bbe6e0cd51da0968684

1 files changed, 65 insertions, 0 deletions

diff --git a/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/impl/Cmpv2HttpClient.java b/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/impl/Cmpv2HttpClient.java
new file mode 100644
index 00000000..b1f96333
--- /dev/null
+++ b/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/impl/Cmpv2HttpClient.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2019 Ericsson Software Technology AB. 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.aaf.certservice.cmpv2client.impl;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import org.apache.http.client.methods.CloseableHttpResponse;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.entity.ByteArrayEntity;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.bouncycastle.asn1.cmp.PKIMessage;
+import org.onap.aaf.certservice.cmpv2client.exceptions.CmpClientException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+class Cmpv2HttpClient {
+
+  private static final Logger LOG = LoggerFactory.getLogger(Cmpv2HttpClient.class);
+
+  private static final String CONTENT_TYPE = "Content-type";
+  private static final String CMP_REQUEST_MIMETYPE = "application/pkixcmp";
+  private CloseableHttpClient httpClient;
+
+  public Cmpv2HttpClient(CloseableHttpClient httpClient){
+    this.httpClient = httpClient;
+  }
+
+  public byte[] postRequest(
+      final PKIMessage pkiMessage,
+      final String urlString,
+      final String caName)
+      throws CmpClientException {
+    try (final ByteArrayOutputStream byteArrOutputStream = new ByteArrayOutputStream()) {
+      final HttpPost postRequest = new HttpPost(urlString);
+      final byte[] requestBytes = pkiMessage.getEncoded();
+
+      postRequest.setEntity(new ByteArrayEntity(requestBytes));
+      postRequest.setHeader(CONTENT_TYPE, CMP_REQUEST_MIMETYPE);
+
+      try (CloseableHttpResponse response = httpClient.execute(postRequest)) {
+        response.getEntity().writeTo(byteArrOutputStream);
+      }
+      return byteArrOutputStream.toByteArray();
+    } catch (IOException ioe) {
+      CmpClientException cmpClientException =
+          new CmpClientException("IOException error while trying to connect CA " + caName, ioe);
+      LOG.error("IOException error {}, while trying to connect CA {}", ioe.getMessage(), caName);
+      throw cmpClientException;
+    }
+  }
+}