Http put added

Change-Id: Id21b799a35b531c30f0c1b5df5c6daac6fd56e92
Issue-ID: DCAEGEN2-407
Signed-off-by: pwielebs <piotr.wielebski@nokia.com>

8 files changed, 474 insertions, 0 deletions

diff --git a/prh-aai-client/src/main/java/org/onap/dcaegen2/services/config/AAIHttpClientConfiguration.java b/prh-aai-client/src/main/java/org/onap/dcaegen2/services/config/AAIHttpClientConfiguration.java
new file mode 100644
index 00000000..9f93f896
--- /dev/null
+++ b/prh-aai-client/src/main/java/org/onap/dcaegen2/services/config/AAIHttpClientConfiguration.java
@@ -0,0 +1,54 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * PNF-REGISTRATION-HANDLER
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA 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.dcaegen2.services.config;
+
+
+import org.immutables.value.Value;
+import org.springframework.stereotype.Component;
+
+import java.io.Serializable;
+
+
+@Component
+@Value.Immutable(prehash = true)
+@Value.Style(stagedBuilder = true)
+public abstract class AAIHttpClientConfiguration implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @Value.Parameter
+    public abstract String aaiHost();
+
+    @Value.Parameter
+    public abstract Integer aaiHostPortNumber();
+
+    @Value.Parameter
+    public abstract String aaiProtocol();
+
+    @Value.Parameter
+    public abstract String aaiUserName();
+
+    @Value.Parameter
+    public abstract String aaiUserPassword();
+
+    @Value.Parameter
+    public abstract Boolean aaiIgnoreSSLCertificateErrors();
+
+}
diff --git a/prh-aai-client/src/main/java/org/onap/dcaegen2/services/service/AAIExtendedHttpClient.java b/prh-aai-client/src/main/java/org/onap/dcaegen2/services/service/AAIExtendedHttpClient.java
new file mode 100644
index 00000000..24149e6d
--- /dev/null
+++ b/prh-aai-client/src/main/java/org/onap/dcaegen2/services/service/AAIExtendedHttpClient.java
@@ -0,0 +1,30 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * PNF-REGISTRATION-HANDLER
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA 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.dcaegen2.services.service;
+
+import org.onap.dcaegen2.services.utils.HttpRequestDetails;
+
+import java.util.Optional;
+
+
+@FunctionalInterface
+public interface AAIExtendedHttpClient {
+    Optional<String> getHttpResponse(HttpRequestDetails httpRequestDetails);
+}
diff --git a/prh-aai-client/src/main/java/org/onap/dcaegen2/services/service/AAIExtendedHttpClientImpl.java b/prh-aai-client/src/main/java/org/onap/dcaegen2/services/service/AAIExtendedHttpClientImpl.java
new file mode 100644
index 00000000..133a537e
--- /dev/null
+++ b/prh-aai-client/src/main/java/org/onap/dcaegen2/services/service/AAIExtendedHttpClientImpl.java
@@ -0,0 +1,162 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * PNF-REGISTRATION-HANDLER
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA 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.dcaegen2.services.service;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.http.HttpEntity;
+import org.apache.http.client.ResponseHandler;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.client.methods.HttpPut;
+import org.apache.http.client.methods.HttpRequestBase;
+import org.apache.http.client.utils.URIBuilder;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.util.EntityUtils;
+import org.onap.dcaegen2.services.config.AAIHttpClientConfiguration;
+import org.onap.dcaegen2.services.utils.HttpRequestDetails;
+import org.onap.dcaegen2.services.utils.HttpUtils;
+import org.onap.dcaegen2.services.utils.RequestVerbs;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+
+import javax.annotation.Nonnull;
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Optional;
+
+public class AAIExtendedHttpClientImpl implements AAIExtendedHttpClient {
+
+    Logger logger = LoggerFactory.getLogger(AAIExtendedHttpClientImpl.class);
+
+    private final CloseableHttpClient closeableHttpClient;
+    private final String aaiHost;
+    private final String aaiProtocol;
+    private final Integer aaiHostPortNumber;
+
+    @Autowired
+    public AAIExtendedHttpClientImpl (AAIHttpClientConfiguration aaiHttpClientConfiguration) {
+        final AAIHttpClient aaiHttpClient = new AAIHttpClientImpl(aaiHttpClientConfiguration);
+        closeableHttpClient = aaiHttpClient.getAAIHttpClient();
+        aaiHost = aaiHttpClientConfiguration.aaiHost();
+        aaiProtocol = aaiHttpClientConfiguration.aaiProtocol();
+        aaiHostPortNumber = aaiHttpClientConfiguration.aaiHostPortNumber();
+    }
+
+    @Override
+    public Optional<String> getHttpResponse(HttpRequestDetails httpRequestDetails) {
+
+        Optional<String> extendedDetails = Optional.empty();
+
+        final URI extendedURI = createAAIExtendedURI(httpRequestDetails.aaiAPIPath(),
+                httpRequestDetails.queryParameters());
+        final HttpRequestBase request = createHttpRequest(extendedURI, httpRequestDetails);
+
+        if (request == null) {
+            return Optional.empty();
+        }
+
+        for (Map.Entry<String, String> headersEntry : httpRequestDetails.headers().entrySet()) {
+            request.addHeader(headersEntry.getKey(), headersEntry.getValue());
+        }
+
+        try {
+            extendedDetails = closeableHttpClient.execute(request, aaiResponseHandler());
+        } catch (IOException e) {
+            logger.error("Exception while executing HTTP request: {}", e);
+        }
+
+        if (extendedDetails.isPresent()) {
+            return extendedDetails;
+        } else {
+            return Optional.empty();
+        }
+    }
+
+    private URI createAAIExtendedURI(final String path, Map<String, String> queryParams) {
+        URI extendedURI = null;
+
+        final URIBuilder uriBuilder = new URIBuilder().setScheme(this.aaiProtocol).setHost(this.aaiHost)
+                .setPort(this.aaiHostPortNumber)
+                .setPath(path);
+        final String customQuery = createCustomQuery(queryParams);
+
+        if (StringUtils.isNoneBlank(customQuery)) {
+            uriBuilder.setCustomQuery(customQuery);
+        }
+
+        try {
+            logger.info("Building extended URI");
+            extendedURI = uriBuilder.build();
+        } catch (URISyntaxException e) {
+            logger.error("Exception while building extended URI: {}", e);
+        }
+
+        return extendedURI;
+    }
+
+    private String createCustomQuery(@Nonnull final Map<String, String> queryParams) {
+        final StringBuilder queryStringBuilder = new StringBuilder("");
+        final Iterator<Map.Entry<String, String>> queryParamIterator = queryParams.entrySet().iterator();
+
+        while (queryParamIterator.hasNext()) {
+            final Map.Entry<String, String> queryParamsEntry = queryParamIterator.next();
+            queryStringBuilder.append(queryParamsEntry.getKey()).append("=").append(queryParamsEntry.getValue());
+            if (queryParamIterator.hasNext()) {
+                queryStringBuilder.append("&");
+            }
+        }
+
+        return queryStringBuilder.toString();
+    }
+
+    private ResponseHandler<Optional<String>> aaiResponseHandler() {
+        return httpResponse ->  {
+            final int responseCode = httpResponse.getStatusLine().getStatusCode();
+            final HttpEntity responseEntity = httpResponse.getEntity();
+
+            if (HttpUtils.isSuccessfulResponseCode(responseCode) && responseEntity != null) {
+                logger.info("HTTP response successful.");
+                final String aaiResponse = EntityUtils.toString(responseEntity);
+                return Optional.of(aaiResponse);
+            } else {
+                String aaiResponse = responseEntity != null ? EntityUtils.toString(responseEntity) : "";
+                logger.error("HTTP response not successful : {}", aaiResponse);
+                return Optional.empty();
+            }
+        };
+    }
+
+    private HttpRequestBase createHttpRequest(URI extendedURI, HttpRequestDetails httpRequestDetails) {
+        if (isExtendedURINotNull(extendedURI) && (httpRequestDetails.requestVerb().equals(RequestVerbs.GET))) {
+            return new HttpGet(extendedURI);
+        } else if (isExtendedURINotNull(extendedURI) && (httpRequestDetails.requestVerb().equals(RequestVerbs.PUT))) {
+            return new HttpPut(extendedURI);
+        } else {
+            return null;
+        }
+    }
+
+    private Boolean isExtendedURINotNull(URI extendedURI) {
+        return extendedURI != null ? true : false;
+    }
+}
diff --git a/prh-aai-client/src/main/java/org/onap/dcaegen2/services/service/AAIHttpClient.java b/prh-aai-client/src/main/java/org/onap/dcaegen2/services/service/AAIHttpClient.java
new file mode 100644
index 00000000..c60027c2
--- /dev/null
+++ b/prh-aai-client/src/main/java/org/onap/dcaegen2/services/service/AAIHttpClient.java
@@ -0,0 +1,29 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * PNF-REGISTRATION-HANDLER
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA 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.dcaegen2.services.service;
+
+import org.apache.http.impl.client.CloseableHttpClient;
+
+@FunctionalInterface
+public interface AAIHttpClient {
+    CloseableHttpClient getAAIHttpClient();
+}
+
diff --git a/prh-aai-client/src/main/java/org/onap/dcaegen2/services/service/AAIHttpClientImpl.java b/prh-aai-client/src/main/java/org/onap/dcaegen2/services/service/AAIHttpClientImpl.java
new file mode 100644
index 00000000..90b551db
--- /dev/null
+++ b/prh-aai-client/src/main/java/org/onap/dcaegen2/services/service/AAIHttpClientImpl.java
@@ -0,0 +1,93 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * PNF-REGISTRATION-HANDLER
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA 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.dcaegen2.services.service;
+
+import org.apache.http.auth.AuthScope;
+import org.apache.http.auth.Credentials;
+import org.apache.http.auth.UsernamePasswordCredentials;
+import org.apache.http.client.CredentialsProvider;
+import org.apache.http.conn.ssl.NoopHostnameVerifier;
+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.impl.client.HttpClients;
+import org.apache.http.ssl.SSLContextBuilder;
+import org.apache.http.ssl.TrustStrategy;
+import org.onap.dcaegen2.services.config.AAIHttpClientConfiguration;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+
+import java.security.KeyManagementException;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+
+public class AAIHttpClientImpl implements AAIHttpClient {
+
+    Logger logger = LoggerFactory.getLogger(AAIHttpClientImpl.class);
+
+    private AAIHttpClientConfiguration aaiHttpClientConfig;
+
+    @Autowired
+    public AAIHttpClientImpl(AAIHttpClientConfiguration aaiHttpClientConfiguration) {
+        this.aaiHttpClientConfig = aaiHttpClientConfiguration;
+    }
+
+    @Override
+    public CloseableHttpClient getAAIHttpClient() {
+
+        final HttpClientBuilder httpClientBuilder = HttpClients.custom().useSystemProperties();
+        final boolean aaiIgnoreSSLCertificateErrors = aaiHttpClientConfig.aaiIgnoreSSLCertificateErrors();
+
+        TrustStrategy acceptingTrustStrategy = (cert, authType) -> true;
+
+        if (aaiIgnoreSSLCertificateErrors) {
+            try {
+                logger.info("Setting SSL Context for AAI HTTP Client");
+                httpClientBuilder.setSSLContext(new SSLContextBuilder()
+                        .loadTrustMaterial(null, acceptingTrustStrategy)
+                        .build());
+
+            } catch (NoSuchAlgorithmException | KeyStoreException |  KeyManagementException e )  {
+                logger.error("Exception while setting SSL Context for AAI HTTP Client: {}", e);
+            }
+
+            httpClientBuilder.setSSLHostnameVerifier(NoopHostnameVerifier.INSTANCE);
+        }
+
+        final String aaiUserName = aaiHttpClientConfig.aaiUserName();
+
+        final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
+
+        if (aaiUserName != null) {
+            final String aaiHost = aaiHttpClientConfig.aaiHost();
+            final Integer aaiHostPortNumber = aaiHttpClientConfig.aaiHostPortNumber();
+            final String aaiUserPassword = aaiHttpClientConfig.aaiUserPassword();
+            final AuthScope aaiHostPortAuthScope = new AuthScope(aaiHost, aaiHostPortNumber);
+            final Credentials aaiCredentials = new UsernamePasswordCredentials(aaiUserName, aaiUserPassword);
+            credentialsProvider.setCredentials(aaiHostPortAuthScope, aaiCredentials);
+        }
+
+        httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider);
+
+        return httpClientBuilder.build();
+    }
+}
diff --git a/prh-aai-client/src/main/java/org/onap/dcaegen2/services/utils/HttpRequestDetails.java b/prh-aai-client/src/main/java/org/onap/dcaegen2/services/utils/HttpRequestDetails.java
new file mode 100644
index 00000000..896e3068
--- /dev/null
+++ b/prh-aai-client/src/main/java/org/onap/dcaegen2/services/utils/HttpRequestDetails.java
@@ -0,0 +1,45 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * PNF-REGISTRATION-HANDLER
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA 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.dcaegen2.services.utils;
+
+
+import org.immutables.value.Value;
+
+import java.io.Serializable;
+import java.util.Map;
+
+@Value.Immutable(prehash = true)
+@Value.Style(stagedBuilder = true)
+public abstract class HttpRequestDetails implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @Value.Parameter
+    public abstract String aaiAPIPath();
+
+    @Value.Parameter
+    public abstract Map<String,String> queryParameters();
+
+    @Value.Parameter
+    public abstract Map<String,String> headers();
+
+    @Value.Parameter
+    public abstract RequestVerbs requestVerb();
+}
diff --git a/prh-aai-client/src/main/java/org/onap/dcaegen2/services/utils/HttpUtils.java b/prh-aai-client/src/main/java/org/onap/dcaegen2/services/utils/HttpUtils.java
new file mode 100644
index 00000000..eac7f83a
--- /dev/null
+++ b/prh-aai-client/src/main/java/org/onap/dcaegen2/services/utils/HttpUtils.java
@@ -0,0 +1,33 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * PNF-REGISTRATION-HANDLER
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA 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.dcaegen2.services.utils;
+
+import org.apache.http.HttpStatus;
+
+public final class HttpUtils implements HttpStatus {
+
+    public static final String JSON_APPLICATION_TYPE = "application/json";
+
+    private HttpUtils() {}
+
+    public static boolean isSuccessfulResponseCode(Integer statusCode) {
+        return statusCode >= 200 && statusCode < 300;
+    }
+}
diff --git a/prh-aai-client/src/main/java/org/onap/dcaegen2/services/utils/RequestVerbs.java b/prh-aai-client/src/main/java/org/onap/dcaegen2/services/utils/RequestVerbs.java
new file mode 100644
index 00000000..f350aa48
--- /dev/null
+++ b/prh-aai-client/src/main/java/org/onap/dcaegen2/services/utils/RequestVerbs.java
@@ -0,0 +1,28 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * PNF-REGISTRATION-HANDLER
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA 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.dcaegen2.services.utils;
+
+public enum RequestVerbs {
+    GET,
+    PUT;
+
+    private RequestVerbs() {};
+}