[POLICY-22] Reorganizing drools-apps

Change-Id: I5f9bb3908f8d55c466dd847ae5e01a424e9ba364
Signed-off-by: Gao, Chenfei (cg287m) <chenfei.gao11@gmail.com>
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>

1 files changed, 115 insertions, 0 deletions

diff --git a/controlloop/common/model-impl/rest/src/main/java/org/onap/policy/rest/RESTManager.java b/controlloop/common/model-impl/rest/src/main/java/org/onap/policy/rest/RESTManager.java
new file mode 100644
index 000000000..e42ab1693
--- /dev/null
+++ b/controlloop/common/model-impl/rest/src/main/java/org/onap/policy/rest/RESTManager.java
@@ -0,0 +1,115 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * rest
+ * ================================================================================
+ * 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.onap.policy.rest;
+
+import java.io.IOException;
+import java.util.Map;
+
+import org.apache.http.HttpResponse;
+import org.apache.http.auth.AuthScope;
+import org.apache.http.auth.UsernamePasswordCredentials;
+import org.apache.http.client.CredentialsProvider;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.entity.StringEntity;
+import org.apache.http.impl.client.BasicCredentialsProvider;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClientBuilder;
+import org.apache.http.util.EntityUtils;
+
+public final class RESTManager {
+
+	public static class Pair<A, B> {
+		public final A a;
+		public final B b;
+		
+		public Pair(A a, B b) {
+			this.a = a;
+			this.b = b;
+		}
+	}
+
+	public static Pair<Integer, String> post(String url, String username, String password, Map<String, String> headers, String contentType, String body) {
+		CredentialsProvider credentials = new BasicCredentialsProvider();
+		credentials.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(username, password));
+		
+		System.out.println("HTTP REQUEST: " + url + " -> " + username + ((password!=null)?password.length():"-") + " -> " + contentType);
+		if (headers != null) {
+			System.out.println("Headers: ");
+			headers.forEach((name, value) -> {
+			    System.out.println(name + " -> " + value);
+			});
+		}
+		System.out.println(body);
+		
+		try (CloseableHttpClient client = HttpClientBuilder.create().setDefaultCredentialsProvider(credentials).build()) {
+
+			HttpPost post = new HttpPost(url);
+			for (String key : headers.keySet()) {
+				post.addHeader(key, headers.get(key));
+			}
+			post.addHeader("Content-Type", contentType);
+			
+			StringEntity input = new StringEntity(body);
+			input.setContentType(contentType);
+			post.setEntity(input);
+			
+			HttpResponse response = client.execute(post);
+			
+			String returnBody = EntityUtils.toString(response.getEntity(), "UTF-8");
+			System.out.println("HTTP POST Response Status Code: " + response.getStatusLine().getStatusCode());
+			System.out.println("HTTP POST Response Body:");
+			System.out.println(returnBody);
+
+			return new Pair<Integer, String>(response.getStatusLine().getStatusCode(), returnBody);
+		} catch (IOException e) {
+			System.err.println("Failed to POST to " + url + e.getLocalizedMessage());
+			return null;
+		}
+		
+	}
+
+	public static Pair<Integer, String> get(String url, String username, String password, Map<String, String> headers) {
+		
+		CredentialsProvider credentials = new BasicCredentialsProvider();
+		credentials.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(username, password));
+		
+		try (CloseableHttpClient client = HttpClientBuilder.create().setDefaultCredentialsProvider(credentials).build()) {
+
+			HttpGet get = new HttpGet(url);
+			for (String key : headers.keySet()) {
+				get.addHeader(key, headers.get(key));
+			}
+			
+			HttpResponse response = client.execute(get);
+			
+			String returnBody = EntityUtils.toString(response.getEntity(), "UTF-8");
+			System.out.println("HTTP GET Response Status Code: " + response.getStatusLine().getStatusCode());
+			System.out.println("HTTP GET Response Body:");
+			System.out.println(returnBody);
+
+			return new Pair<Integer, String>(response.getStatusLine().getStatusCode(), returnBody);
+		} catch (IOException e) {
+			System.err.println("Failed to GET to " + url + e.getLocalizedMessage());
+			return null;
+		}
+	}
+}