1 files changed, 143 insertions, 0 deletions
diff --git a/bpmn/MSORESTClient/src/main/java/org/openecomp/mso/rest/APIResponse.java b/bpmn/MSORESTClient/src/main/java/org/openecomp/mso/rest/APIResponse.java
new file mode 100644
index 0000000000..dfb9f36e9a
--- /dev/null
+++ b/bpmn/MSORESTClient/src/main/java/org/openecomp/mso/rest/APIResponse.java
@@ -0,0 +1,143 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * OPENECOMP - MSO
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.mso.rest;
+
+import java.io.IOException;
+
+import org.apache.http.Header;
+import org.apache.http.HttpResponse;
+import org.apache.http.util.EntityUtils;
+
+/**
+ * An immutable class that encapsulates an API response.
+ * 
+ * @version 1.0
+ * @since 1.0
+ */
+public class APIResponse {
+    private final int statusCode;
+    private final byte[] responseBody;
+    private final HttpHeader[] headers;
+
+    /**
+     * Internal method used to create http headers using the specified
+     * HttpResponse object.
+     *
+     * @param httpResponse used to create headers
+     * @return http headers
+     */
+    private HttpHeader[] buildHeaders(final HttpResponse httpResponse) {
+        final Header[] headers = httpResponse.getAllHeaders();
+
+        HttpHeader[] httpHeaders = new HttpHeader[headers.length];
+        for (int i = 0; i < headers.length; ++i) {
+            final Header header = headers[i];
+            final String name = header.getName();
+            final String value = header.getValue(); 
+            final HttpHeader httpHeader = new HttpHeader(name, value);
+            httpHeaders[i] = httpHeader;
+        } 
+
+        return httpHeaders;
+    }
+
+    /**
+     * Create an APIResponse object using the specified HttpResponse object.
+     *
+     * @param httpResponse used to create the APIResponse
+     *
+     * @throws RESTException if unable to read from the HttpResponse object
+     */
+    public APIResponse(final HttpResponse httpResponse) throws RESTException {
+        try {
+            this.statusCode = httpResponse.getStatusLine().getStatusCode();
+
+            if (httpResponse.getEntity() == null)
+            {
+                this.responseBody = null;
+            }
+            else
+            {
+                this.responseBody = EntityUtils.toByteArray(httpResponse.getEntity());
+            }
+
+            this.headers = buildHeaders(httpResponse);
+        } catch (IOException ioe) {
+            throw new RESTException(ioe);
+        }
+    }
+
+    /**
+     * Gets the http status code returned by the api server.
+     * <p>
+     * For example, status code 200 represents 'OK.' 
+     *
+     * @return status code
+     */
+    public int getStatusCode() {
+        return this.statusCode;
+    }
+
+    /**
+     * Gets the http response body as a byte array.
+     *
+     * @return http response body
+     */
+    public byte[] getResponseBodyAsByteArray() {
+        return this.responseBody;
+    }
+
+    /**
+     * Gets the http response body as a string.
+     *
+     * @return http response body
+     */
+    public String getResponseBodyAsString() {
+        if (this.responseBody != null) {
+            return new String(this.responseBody);
+        } else {
+            return "";
+        }
+    }
+
+    /**
+     * Gets a list of all the headers returned by the API response.
+     *
+     * @return an array of all the HttpHeaders 
+     */
+    public HttpHeader[] getAllHeaders() {
+        // avoid exposing internals, create copy
+        HttpHeader[] copy = new HttpHeader[this.headers.length];
+        for (int i = 0; i < this.headers.length; ++i) {
+            copy[i] = headers[i];
+        }
+        return copy;
+    }
+
+    public String getFirstHeader(String name) {
+        for (HttpHeader header : headers) {
+            if (header.getName().equals(name)) {
+                return header.getValue();
+            }
+        }
+        return null;
+    }
+}