Update schema service to fail to start

when all of the schema failed to load
so the microservice wouldn't be in a
bad state and also have the microservice
dictate what versions of schema they are using

Issue-ID: AAI-2329
Change-Id: Ie2e6e2bb3bac37b2ad57ada613e7c0e65647b64e
Signed-off-by: Kajur, Harish (vk250x) <vk250x@att.com>

7 files changed, 203 insertions, 25 deletions

diff --git a/aai-rest/src/main/java/org/onap/aai/restclient/AAIRestClient.java b/aai-rest/src/main/java/org/onap/aai/restclient/AAIRestClient.java
new file mode 100644
index 00000000..652f399a
--- /dev/null
+++ b/aai-rest/src/main/java/org/onap/aai/restclient/AAIRestClient.java
@@ -0,0 +1,88 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017-2019 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.aai.restclient;
+
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.MediaType;
+import org.springframework.stereotype.Component;
+import org.springframework.util.MultiValueMap;
+
+import java.util.Collections;
+import java.util.Map;
+
+@Component(value=ClientType.AAI)
+public class AAIRestClient extends TwoWaySSLRestClient{
+
+	private static EELFLogger logger = EELFManager.getInstance().getLogger(AAIRestClient.class);
+
+	@Value("${aai.base.url}")
+	private String baseUrl;
+
+	@Value("${aai.ssl.key-store}")
+	private String keystorePath;
+
+	@Value("${aai.ssl.trust-store}")
+	private String truststorePath;
+
+	@Value("${aai.ssl.key-store-password}")
+	private String keystorePassword;
+
+	@Value("${aai.ssl.trust-store-password}")
+	private String truststorePassword;
+
+	@Override
+	public String getBaseUrl() {
+		return baseUrl;
+	}
+
+	@Override
+	protected String getKeystorePath() {
+		return keystorePath;
+	}
+
+	@Override
+	protected String getTruststorePath() {
+		return truststorePath;
+	}
+
+	@Override
+	protected char[] getKeystorePassword() {
+		return keystorePassword.toCharArray();
+	}
+
+	@Override
+	protected char[] getTruststorePassword() {
+		return truststorePassword.toCharArray();
+	}
+
+	@Override
+	public MultiValueMap<String, String> getHeaders(Map<String, String> headers) {
+		HttpHeaders httpHeaders = new HttpHeaders();
+		httpHeaders.setAccept(Collections.singletonList(MediaType.APPLICATION_JSON));
+		httpHeaders.setContentType(MediaType.APPLICATION_JSON);
+		httpHeaders.add("Real-Time", "true");
+		headers.forEach(httpHeaders::add);
+		return httpHeaders;
+	}
+
+}
diff --git a/aai-rest/src/main/java/org/onap/aai/restclient/ClientType.java b/aai-rest/src/main/java/org/onap/aai/restclient/ClientType.java
new file mode 100644
index 00000000..855bab71
--- /dev/null
+++ b/aai-rest/src/main/java/org/onap/aai/restclient/ClientType.java
@@ -0,0 +1,24 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017-2019 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.aai.restclient;
+
+public class ClientType {
+    public static final String AAI = "aai-rest-client";
+}
diff --git a/aai-rest/src/main/java/org/onap/aai/restclient/NoAuthRestClient.java b/aai-rest/src/main/java/org/onap/aai/restclient/NoAuthRestClient.java
index 7e3524d7..47fe99d8 100644
--- a/aai-rest/src/main/java/org/onap/aai/restclient/NoAuthRestClient.java
+++ b/aai-rest/src/main/java/org/onap/aai/restclient/NoAuthRestClient.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * org.onap.aai
  * ================================================================================
- * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2017-2019 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.
@@ -42,7 +42,7 @@ public abstract class NoAuthRestClient extends RestClient{
 				.requestFactory(new HttpComponentsClientHttpRequestFactory(client))
 				.build();
 
-		restTemplate.setErrorHandler(new RestClientResponseErrorHandler(getLogger()));
+		restTemplate.setErrorHandler(new RestClientResponseErrorHandler());
 	}
 
 	@Override
diff --git a/aai-rest/src/main/java/org/onap/aai/restclient/OneWaySSLRestClient.java b/aai-rest/src/main/java/org/onap/aai/restclient/OneWaySSLRestClient.java
index e502e5e5..96cd51e8 100644
--- a/aai-rest/src/main/java/org/onap/aai/restclient/OneWaySSLRestClient.java
+++ b/aai-rest/src/main/java/org/onap/aai/restclient/OneWaySSLRestClient.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * org.onap.aai
  * ================================================================================
- * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2017-2019 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.
@@ -19,6 +19,8 @@
  */
 package org.onap.aai.restclient;
 
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
 import org.apache.http.client.HttpClient;
 import org.apache.http.impl.client.HttpClients;
 import org.apache.http.ssl.SSLContextBuilder;
@@ -36,6 +38,8 @@ import java.security.KeyStore;
 
 public abstract class OneWaySSLRestClient extends RestClient {
 
+    private static EELFLogger logger = EELFManager.getInstance().getLogger(OneWaySSLRestClient.class);
+
     private RestTemplate restTemplate;
 
     @PostConstruct
@@ -59,7 +63,7 @@ public abstract class OneWaySSLRestClient extends RestClient {
             .requestFactory(new HttpComponentsClientHttpRequestFactory(client))
             .build();
 
-        restTemplate.setErrorHandler(new RestClientResponseErrorHandler(getLogger()));
+        restTemplate.setErrorHandler(new RestClientResponseErrorHandler());
 
     }
 
diff --git a/aai-rest/src/main/java/org/onap/aai/restclient/RestClient.java b/aai-rest/src/main/java/org/onap/aai/restclient/RestClient.java
index a17880f3..6ac51b2f 100644
--- a/aai-rest/src/main/java/org/onap/aai/restclient/RestClient.java
+++ b/aai-rest/src/main/java/org/onap/aai/restclient/RestClient.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * org.onap.aai
  * ================================================================================
- * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2017-2019 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Modifications Copyright © 2018 IBM.
  * ================================================================================
@@ -32,6 +32,8 @@ import org.springframework.util.MultiValueMap;
 import org.springframework.web.client.RestClientException;
 import org.springframework.web.client.RestTemplate;
 
+import java.net.URI;
+import java.net.URISyntaxException;
 import java.util.Map;
 
 public abstract class RestClient {
@@ -40,17 +42,82 @@ public abstract class RestClient {
     @Value("${spring.application.name}")
     protected String appName;
 
-    public ResponseEntity execute(String uri, HttpMethod method, Map<String, String> headers, String body) throws RestClientException {
 
-        HttpEntity httpEntity;
-        log.debug("Headers: " + headers.toString());
+    /**
+     * Execute the given http method against the uri with passed headers
+     * @param uri properly encoded, can include query params also properly encoded
+     * @param method http method of the request
+     * @param headers headers for the request
+     * @param body body of the request
+     * @return response of request
+     * @throws RestClientException on internal rest template exception or invalid url
+     */
+    public ResponseEntity execute(String uri, HttpMethod method, Map<String,String> headers, String body) throws RestClientException {
+
+        HttpEntity<String> httpEntity;
+        log.debug ("Headers: {}", headers);
         if (body == null) {
-            httpEntity = new HttpEntity(getHeaders(headers));
+            httpEntity = new HttpEntity<>(getHeaders(headers));
         } else {
-            httpEntity = new HttpEntity(body, getHeaders(headers));
+            httpEntity = new HttpEntity<>(body, getHeaders(headers));
         }
-        String url = getBaseUrl() + uri;
-        return getRestTemplate().exchange(url, method, httpEntity, String.class);
+
+        // verify that either the base url ends with '/' or uri starts with '/', adjust uri accordingly.
+        if (getBaseUrl().endsWith("/") && uri.startsWith("/")) {
+            uri = uri.replaceFirst("/", "");
+        } else if (!getBaseUrl().endsWith("/") && !uri.startsWith("/")) {
+            uri = "/" + uri;
+        }
+
+        URI url;
+        try {
+            url = new URI(getBaseUrl() + uri);
+        } catch (URISyntaxException e) {
+            log.error("URL syntax error with url {}{}", getBaseUrl(), uri);
+            throw new RestClientException(e.getMessage());
+        }
+        log.debug("METHOD={},URL={},http={}" + method, url, httpEntity);
+
+        ResponseEntity responseEntity = getRestTemplate().exchange(url, method, httpEntity, String.class);
+        log.debug("RESPONSE={}", responseEntity);
+        return responseEntity;
+    }
+
+    /**
+     * Execute the given http method against the uri with passed headers
+     * @param uri properly encoded, can include query params also properly encoded
+     * @param method http method of the request
+     * @param headers headers for the request
+     * @param body body of the request
+     * @return response of request
+     * @throws RestClientException on internal rest template exception or invalid url
+     */
+    public ResponseEntity execute(String uri, String method, Map<String,String> headers, String body) throws RestClientException{
+        return execute(uri, HttpMethod.valueOf(method), headers, body);
+    }
+
+    /**
+     * Execute the given http method against the uri with passed headers
+     * @param uri properly encoded, can include query params also properly encoded
+     * @param method http method of the request
+     * @param headers headers for the request
+     * @return response of request
+     * @throws RestClientException on internal rest template exception or invalid url
+     */
+    public ResponseEntity execute(String uri, HttpMethod method, Map<String,String> headers) throws RestClientException{
+        return execute(uri, method, headers, null);
+    }
+
+    /**
+     * Execute the given http method against the uri with passed headers
+     * @param uri properly encoded, can include query params also properly encoded
+     * @param method http method of the request
+     * @param headers headers for the request
+     * @return response of request
+     * @throws RestClientException on internal rest template exception or invalid url
+     */
+    public ResponseEntity execute(String uri, String method, Map<String,String> headers) throws RestClientException{
+        return execute(uri, HttpMethod.valueOf(method), headers, null);
     }
 
     public ResponseEntity executeResource(String uri, HttpMethod method, Map<String, String> headers, String body) throws RestClientException {
@@ -66,10 +133,6 @@ public abstract class RestClient {
         return getRestTemplate().exchange(url, method, httpEntity, Resource.class);
     }
 
-    public ResponseEntity execute(String uri, String method, Map<String, String> headers) throws RestClientException {
-        return execute(uri, HttpMethod.valueOf(method), headers, null);
-    }
-
     public ResponseEntity getGetRequest(String content, String uri, Map<String, String> headersMap) {
         return this.execute(
             uri,
@@ -94,6 +157,4 @@ public abstract class RestClient {
 
     protected abstract MultiValueMap<String, String> getHeaders(Map<String, String> headers);
 
-    protected abstract EELFLogger getLogger();
-
 }
diff --git a/aai-rest/src/main/java/org/onap/aai/restclient/RestClientResponseErrorHandler.java b/aai-rest/src/main/java/org/onap/aai/restclient/RestClientResponseErrorHandler.java
index 1d6486b0..2271a1f5 100644
--- a/aai-rest/src/main/java/org/onap/aai/restclient/RestClientResponseErrorHandler.java
+++ b/aai-rest/src/main/java/org/onap/aai/restclient/RestClientResponseErrorHandler.java
@@ -20,6 +20,7 @@
 package org.onap.aai.restclient;
 
 import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.client.ClientHttpResponse;
 import org.springframework.web.client.ResponseErrorHandler;
@@ -28,11 +29,7 @@ import java.io.IOException;
 
 public class RestClientResponseErrorHandler implements ResponseErrorHandler {
 
-    private EELFLogger logger;
-
-    public RestClientResponseErrorHandler(EELFLogger logger) {
-        this.logger = logger;
-    }
+    private static EELFLogger logger = EELFManager.getInstance().getLogger(RestClientResponseErrorHandler.class);
 
     @Override
     public boolean hasError(ClientHttpResponse clientHttpResponse) throws IOException {
diff --git a/aai-rest/src/main/java/org/onap/aai/restclient/TwoWaySSLRestClient.java b/aai-rest/src/main/java/org/onap/aai/restclient/TwoWaySSLRestClient.java
index 2fe9500f..dd5deaa6 100644
--- a/aai-rest/src/main/java/org/onap/aai/restclient/TwoWaySSLRestClient.java
+++ b/aai-rest/src/main/java/org/onap/aai/restclient/TwoWaySSLRestClient.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * org.onap.aai
  * ================================================================================
- * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2017-2019 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.
@@ -19,6 +19,8 @@
  */
 package org.onap.aai.restclient;
 
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
 import org.apache.http.client.HttpClient;
 import org.apache.http.impl.client.HttpClients;
 import org.apache.http.ssl.SSLContextBuilder;
@@ -36,6 +38,8 @@ import java.security.KeyStore;
 
 public abstract class TwoWaySSLRestClient extends RestClient {
 
+    private static EELFLogger logger = EELFManager.getInstance().getLogger(TwoWaySSLRestClient.class);
+
     private RestTemplate restTemplate;
 
     @PostConstruct
@@ -62,7 +66,7 @@ public abstract class TwoWaySSLRestClient extends RestClient {
             .requestFactory(new HttpComponentsClientHttpRequestFactory(client))
             .build();
 
-        restTemplate.setErrorHandler(new RestClientResponseErrorHandler(getLogger()));
+        restTemplate.setErrorHandler(new RestClientResponseErrorHandler());
 
     }