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-rw-r--r--common/src/main/java/org/onap/so/client/RestTemplateConfig.java34
-rw-r--r--common/src/main/java/org/onap/so/configuration/rest/BasicHttpHeadersProvider.java54
-rw-r--r--common/src/main/java/org/onap/so/configuration/rest/HttpClientConnectionConfiguration.java87
-rw-r--r--common/src/main/java/org/onap/so/configuration/rest/HttpComponentsClientConfiguration.java73
-rw-r--r--common/src/main/java/org/onap/so/configuration/rest/HttpHeadersProvider.java35
-rw-r--r--common/src/main/java/org/onap/so/logging/jaxrs/filter/SpringClientFilter.java2
-rw-r--r--common/src/main/java/org/onap/so/rest/exceptions/InvalidRestRequestException.java37
-rw-r--r--common/src/main/java/org/onap/so/rest/exceptions/RestProcessingException.java37
-rw-r--r--common/src/main/java/org/onap/so/rest/service/HttpRestServiceProvider.java72
-rw-r--r--common/src/main/java/org/onap/so/rest/service/HttpRestServiceProviderImpl.java144
10 files changed, 567 insertions, 8 deletions
diff --git a/common/src/main/java/org/onap/so/client/RestTemplateConfig.java b/common/src/main/java/org/onap/so/client/RestTemplateConfig.java
index 14556f1211..34ad6ef758 100644
--- a/common/src/main/java/org/onap/so/client/RestTemplateConfig.java
+++ b/common/src/main/java/org/onap/so/client/RestTemplateConfig.java
@@ -20,7 +20,10 @@
package org.onap.so.client;
+import org.onap.so.configuration.rest.HttpComponentsClientConfiguration;
import org.onap.so.logging.jaxrs.filter.SpringClientFilter;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.client.BufferingClientHttpRequestFactory;
@@ -30,11 +33,28 @@ import org.springframework.web.client.RestTemplate;
@Configuration
public class RestTemplateConfig {
- @Bean
- public RestTemplate restTemplate() {
- RestTemplate restTemplate = new RestTemplate();
- restTemplate.setRequestFactory(new BufferingClientHttpRequestFactory(new HttpComponentsClientHttpRequestFactory()));
- restTemplate.getInterceptors().add(new SpringClientFilter());
- return restTemplate;
- }
+ public static final String CONFIGURABLE_REST_TEMPLATE = "configurableRestTemplate";
+
+ @Autowired
+ private HttpComponentsClientConfiguration httpComponentsClientConfiguration;
+
+ @Bean
+ public RestTemplate restTemplate() {
+ final RestTemplate restTemplate = new RestTemplate();
+ restTemplate
+ .setRequestFactory(new BufferingClientHttpRequestFactory(new HttpComponentsClientHttpRequestFactory()));
+ restTemplate.getInterceptors().add(new SpringClientFilter());
+ return restTemplate;
+ }
+
+ @Bean
+ @Qualifier(CONFIGURABLE_REST_TEMPLATE)
+ public RestTemplate configurableRestTemplate() {
+ final HttpComponentsClientHttpRequestFactory clientHttpRequestFactory =
+ httpComponentsClientConfiguration.httpComponentsClientHttpRequestFactory();
+ final RestTemplate restTemplate =
+ new RestTemplate(new BufferingClientHttpRequestFactory(clientHttpRequestFactory));
+ restTemplate.getInterceptors().add(new SpringClientFilter());
+ return restTemplate;
+ }
}
diff --git a/common/src/main/java/org/onap/so/configuration/rest/BasicHttpHeadersProvider.java b/common/src/main/java/org/onap/so/configuration/rest/BasicHttpHeadersProvider.java
new file mode 100644
index 0000000000..7606f3a8d3
--- /dev/null
+++ b/common/src/main/java/org/onap/so/configuration/rest/BasicHttpHeadersProvider.java
@@ -0,0 +1,54 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.configuration.rest;
+
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.MediaType;
+
+/**
+ * @author waqas.ikram@est.tech
+ */
+public class BasicHttpHeadersProvider implements HttpHeadersProvider {
+
+ public static final String AUTHORIZATION_HEADER = "Authorization";
+
+ private final HttpHeaders headers = new HttpHeaders();
+
+ public BasicHttpHeadersProvider(final String authorization) {
+ headers.add(AUTHORIZATION_HEADER, authorization);
+ headers.setContentType(MediaType.APPLICATION_JSON);
+ }
+
+ public BasicHttpHeadersProvider() {
+ headers.setContentType(MediaType.APPLICATION_JSON);
+ }
+
+ @Override
+ public HttpHeaders getHttpHeaders() {
+ return headers;
+ }
+
+ @Override
+ public String toString() {
+ return "BasicHttpHeadersProvider [headers=" + headers + "]";
+ }
+
+}
diff --git a/common/src/main/java/org/onap/so/configuration/rest/HttpClientConnectionConfiguration.java b/common/src/main/java/org/onap/so/configuration/rest/HttpClientConnectionConfiguration.java
new file mode 100644
index 0000000000..a5a4cb7d53
--- /dev/null
+++ b/common/src/main/java/org/onap/so/configuration/rest/HttpClientConnectionConfiguration.java
@@ -0,0 +1,87 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.configuration.rest;
+
+import java.util.concurrent.TimeUnit;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+
+/**
+ * This class is used configure the parameters needed for
+ * {@link org.apache.http.impl.client.CloseableHttpClient}
+ *
+ * @author waqas.ikram@est.tech
+ */
+@Service
+public class HttpClientConnectionConfiguration {
+
+ @Value(value = "${rest.http.client.configuration.connTimeOutInSec:10}")
+ private int connectionTimeOutInSeconds;
+
+ @Value(value = "${rest.http.client.configuration.socketTimeOutInSec:180}")
+ private int socketTimeOutInSeconds;
+
+ @Value(value = "${rest.http.client.configuration.socketTimeOutInSec:600}")
+ private int timeToLiveInSeconds;
+
+ @Value(value = "${rest.http.client.configuration.maxConnections:10}")
+ private int maxConnections;
+
+ @Value(value = "${rest.http.client.configuration.maxConnectionsPerRoute:2}")
+ private int maxConnectionsPerRoute;
+
+ /**
+ * @return the socket connection time out in milliseconds
+ */
+ public int getSocketTimeOutInMiliSeconds() {
+ return (int) TimeUnit.SECONDS.toMillis(socketTimeOutInSeconds);
+ }
+
+ /**
+ * @return the maximum total connection value.
+ */
+ public int getMaxConnections() {
+ return maxConnections;
+ }
+
+ /**
+ * @return the maximum connection per route value.
+ */
+ public int getMaxConnectionsPerRoute() {
+ return maxConnectionsPerRoute;
+ }
+
+ /**
+ * @return the connect time out value in milliseconds.
+ */
+ public int getConnectionTimeOutInMilliSeconds() {
+ return (int) TimeUnit.SECONDS.toMillis(connectionTimeOutInSeconds);
+ }
+
+ /**
+ * @return the connection time to live value in mintues.
+ */
+ public int getTimeToLiveInMins() {
+ return (int) TimeUnit.SECONDS.toMinutes(timeToLiveInSeconds);
+ }
+
+}
diff --git a/common/src/main/java/org/onap/so/configuration/rest/HttpComponentsClientConfiguration.java b/common/src/main/java/org/onap/so/configuration/rest/HttpComponentsClientConfiguration.java
new file mode 100644
index 0000000000..e943aef159
--- /dev/null
+++ b/common/src/main/java/org/onap/so/configuration/rest/HttpComponentsClientConfiguration.java
@@ -0,0 +1,73 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2018 Ericsson. 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.configuration.rest;
+
+import java.util.concurrent.TimeUnit;
+
+import org.apache.http.client.config.RequestConfig;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClientBuilder;
+import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
+
+/**
+ * Allow user to configure {@link org.apache.http.client.HttpClient}
+ *
+ * @author waqas.ikram@est.tech
+ */
+@Configuration
+public class HttpComponentsClientConfiguration {
+
+ private final HttpClientConnectionConfiguration clientConnectionConfiguration;
+
+ @Autowired
+ public HttpComponentsClientConfiguration(final HttpClientConnectionConfiguration clientConnectionConfiguration) {
+ this.clientConnectionConfiguration = clientConnectionConfiguration;
+ }
+
+ @Bean
+ public HttpComponentsClientHttpRequestFactory httpComponentsClientHttpRequestFactory() {
+ return new HttpComponentsClientHttpRequestFactory(httpClient());
+ }
+
+ @Bean
+ public CloseableHttpClient httpClient() {
+ return HttpClientBuilder.create().setConnectionManager(poolingHttpClientConnectionManager())
+ .setMaxConnPerRoute(clientConnectionConfiguration.getMaxConnectionsPerRoute())
+ .setMaxConnTotal(clientConnectionConfiguration.getMaxConnections())
+ .setDefaultRequestConfig(requestConfig()).build();
+ }
+
+ @Bean
+ public PoolingHttpClientConnectionManager poolingHttpClientConnectionManager() {
+ return new PoolingHttpClientConnectionManager(clientConnectionConfiguration.getTimeToLiveInMins(),
+ TimeUnit.MINUTES);
+ }
+
+ @Bean
+ public RequestConfig requestConfig() {
+ return RequestConfig.custom().setSocketTimeout(clientConnectionConfiguration.getSocketTimeOutInMiliSeconds())
+ .setConnectTimeout(clientConnectionConfiguration.getConnectionTimeOutInMilliSeconds()).build();
+ }
+}
diff --git a/common/src/main/java/org/onap/so/configuration/rest/HttpHeadersProvider.java b/common/src/main/java/org/onap/so/configuration/rest/HttpHeadersProvider.java
new file mode 100644
index 0000000000..0cff7b4ba0
--- /dev/null
+++ b/common/src/main/java/org/onap/so/configuration/rest/HttpHeadersProvider.java
@@ -0,0 +1,35 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.configuration.rest;
+
+import org.springframework.http.HttpHeaders;
+
+/**
+ * Providers {@link org.springframework.http.HttpHeaders} for HTTP requests
+ *
+ * @author waqas.ikram@est.tech
+ *
+ */
+public interface HttpHeadersProvider {
+
+ HttpHeaders getHttpHeaders();
+
+}
diff --git a/common/src/main/java/org/onap/so/logging/jaxrs/filter/SpringClientFilter.java b/common/src/main/java/org/onap/so/logging/jaxrs/filter/SpringClientFilter.java
index cecef1945b..ed63a706a2 100644
--- a/common/src/main/java/org/onap/so/logging/jaxrs/filter/SpringClientFilter.java
+++ b/common/src/main/java/org/onap/so/logging/jaxrs/filter/SpringClientFilter.java
@@ -57,6 +57,7 @@ public class SpringClientFilter implements ClientHttpRequestInterceptor {
}
private void processRequest(HttpRequest request, byte[] body) throws IOException {
+ setInvocationId();
setupHeaders(request);
setupMDC(request);
if (log.isDebugEnabled()) {
@@ -89,7 +90,6 @@ public class SpringClientFilter implements ClientHttpRequestInterceptor {
MDC.put(ONAPLogConstants.MDCs.INVOKE_TIMESTAMP, ZonedDateTime.now(ZoneOffset.UTC).format(DateTimeFormatter.ISO_INSTANT));
MDC.put(ONAPLogConstants.MDCs.TARGET_SERVICE_NAME, clientRequest.getURI().toString());
MDC.put(ONAPLogConstants.MDCs.RESPONSE_STATUS_CODE, ONAPLogConstants.ResponseStatus.INPROGRESS.toString());
- setInvocationId();
MDC.put(ONAPLogConstants.MDCs.TARGET_ENTITY,extractTargetEntity(clientRequest));
}
diff --git a/common/src/main/java/org/onap/so/rest/exceptions/InvalidRestRequestException.java b/common/src/main/java/org/onap/so/rest/exceptions/InvalidRestRequestException.java
new file mode 100644
index 0000000000..2a9799315e
--- /dev/null
+++ b/common/src/main/java/org/onap/so/rest/exceptions/InvalidRestRequestException.java
@@ -0,0 +1,37 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.rest.exceptions;
+
+/**
+ * @author waqas.ikram@est.tech
+ *
+ */
+public class InvalidRestRequestException extends RuntimeException {
+ private static final long serialVersionUID = -1158414939006977465L;
+
+ public InvalidRestRequestException(final String message) {
+ super(message);
+ }
+
+ public InvalidRestRequestException(final String message, final Throwable cause) {
+ super(message, cause);
+ }
+}
diff --git a/common/src/main/java/org/onap/so/rest/exceptions/RestProcessingException.java b/common/src/main/java/org/onap/so/rest/exceptions/RestProcessingException.java
new file mode 100644
index 0000000000..e8ce00c7e5
--- /dev/null
+++ b/common/src/main/java/org/onap/so/rest/exceptions/RestProcessingException.java
@@ -0,0 +1,37 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.so.rest.exceptions;
+
+/**
+ * @author waqas.ikram@est.tech
+ *
+ */
+public class RestProcessingException extends RuntimeException {
+
+ private static final long serialVersionUID = 16862313537198441L;
+
+ public RestProcessingException(final String message) {
+ super(message);
+ }
+
+ public RestProcessingException(final String message, final Throwable cause) {
+ super(message, cause);
+ }
+}
diff --git a/common/src/main/java/org/onap/so/rest/service/HttpRestServiceProvider.java b/common/src/main/java/org/onap/so/rest/service/HttpRestServiceProvider.java
new file mode 100644
index 0000000000..43b2fb4292
--- /dev/null
+++ b/common/src/main/java/org/onap/so/rest/service/HttpRestServiceProvider.java
@@ -0,0 +1,72 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.rest.service;
+
+import org.springframework.http.ResponseEntity;
+
+import com.google.common.base.Optional;
+
+/**
+ * @author waqas.ikram@est.tech
+ */
+public interface HttpRestServiceProvider {
+
+ /**
+ * Execute the HTTP GET to the given URI template
+ *
+ * @param url the URL
+ * @param clazz the type of the return value
+ * @return Returns the body of this entity.
+ */
+ public <T> Optional<T> get(final String url, final Class<T> clazz);
+
+ /**
+ * Execute the HTTP GET to the given URI template
+ *
+ * @param url the URL
+ * @param clazz the type of the return value
+ * @return Returns the {@link ResponseEntity}.
+ */
+ public <T> ResponseEntity<T> getHttpResponse(final String url, final Class<T> clazz);
+
+
+ /**
+ * Execute the HTTP POST to the given URI template
+ *
+ * @param object the entity (i.e. body) to write to the request
+ * @param url the URL
+ * @param clazz the type of the return value
+ * @return Returns the body of this entity.
+ */
+ public <T> Optional<T> post(final Object object, final String url, final Class<T> clazz);
+
+ /**
+ * Execute the HTTP POST to the given URI template
+ *
+ * @param object the entity (i.e. body) to write to the request
+ * @param url the URL
+ * @param clazz the type of the return value
+ * @return Returns the {@link ResponseEntity}.
+ */
+ public <T> ResponseEntity<T> postHttpRequest(final Object object, final String url, final Class<T> clazz);
+
+
+}
diff --git a/common/src/main/java/org/onap/so/rest/service/HttpRestServiceProviderImpl.java b/common/src/main/java/org/onap/so/rest/service/HttpRestServiceProviderImpl.java
new file mode 100644
index 0000000000..032df84a98
--- /dev/null
+++ b/common/src/main/java/org/onap/so/rest/service/HttpRestServiceProviderImpl.java
@@ -0,0 +1,144 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.rest.service;
+
+import org.onap.so.configuration.rest.BasicHttpHeadersProvider;
+import org.onap.so.configuration.rest.HttpHeadersProvider;
+import org.onap.so.rest.exceptions.InvalidRestRequestException;
+import org.onap.so.rest.exceptions.RestProcessingException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.client.HttpClientErrorException;
+import org.springframework.web.client.RestClientException;
+import org.springframework.web.client.RestTemplate;
+
+import com.google.common.base.Optional;
+
+/**
+ * A Service to perform HTTP requests
+ *
+ * @author waqas.ikram@est.tech
+ */
+public class HttpRestServiceProviderImpl implements HttpRestServiceProvider {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(HttpRestServiceProviderImpl.class);
+ private final RestTemplate restTemplate;
+ private final HttpHeadersProvider httpHeadersProvider;
+
+ public HttpRestServiceProviderImpl(final RestTemplate restTemplate) {
+ this.restTemplate = restTemplate;
+ this.httpHeadersProvider = new BasicHttpHeadersProvider();
+ }
+
+ public HttpRestServiceProviderImpl(final RestTemplate restTemplate, final HttpHeadersProvider httpHeadersProvider) {
+ this.restTemplate = restTemplate;
+ this.httpHeadersProvider = httpHeadersProvider;
+ }
+
+ @Override
+ public <T> Optional<T> get(final String url, final Class<T> clazz) {
+ final ResponseEntity<T> response = getHttpResponse(url, clazz);
+ if (!response.getStatusCode().equals(HttpStatus.OK)) {
+ final String message =
+ "Unable to invoke HTTP GET using URL: " + url + ", Response Code: " + response.getStatusCode();
+ LOGGER.error(message);
+ return Optional.absent();
+ }
+
+ if (response.hasBody()) {
+ return Optional.of(response.getBody());
+ }
+ return Optional.absent();
+ }
+
+
+ @Override
+ public <T> ResponseEntity<T> getHttpResponse(final String url, final Class<T> clazz) {
+ LOGGER.trace("Will invoke HTTP GET using URL: {}", url);
+ try {
+ final HttpEntity<?> request = new HttpEntity<>(getHttpHeaders());
+ return restTemplate.exchange(url, HttpMethod.GET, request, clazz);
+
+ } catch (final HttpClientErrorException httpClientErrorException) {
+ final String message = "Unable to invoke HTTP GET using url: " + url + ", Response: "
+ + httpClientErrorException.getRawStatusCode();
+ LOGGER.error(message, httpClientErrorException);
+ final int rawStatusCode = httpClientErrorException.getRawStatusCode();
+ if (rawStatusCode == HttpStatus.BAD_REQUEST.value() || rawStatusCode == HttpStatus.NOT_FOUND.value()) {
+ throw new InvalidRestRequestException("No result found for given url: " + url);
+ }
+ throw new RestProcessingException("Unable to invoke HTTP GET using URL: " + url);
+
+ } catch (final RestClientException restClientException) {
+ LOGGER.error("Unable to invoke HTTP GET using url: {}", url, restClientException);
+ throw new RestProcessingException("Unable to invoke HTTP GET using URL: " + url, restClientException);
+ }
+ }
+
+ @Override
+ public <T> Optional<T> post(final Object object, final String url, final Class<T> clazz) {
+ final ResponseEntity<T> response = postHttpRequest(object, url, clazz);
+ if (!response.getStatusCode().equals(HttpStatus.OK)) {
+ final String message =
+ "Unable to invoke HTTP GET using URL: " + url + ", Response Code: " + response.getStatusCode();
+ LOGGER.error(message);
+ return Optional.absent();
+ }
+
+ if (response.hasBody()) {
+ return Optional.of(response.getBody());
+ }
+
+ return Optional.absent();
+ }
+
+
+ @Override
+ public <T> ResponseEntity<T> postHttpRequest(final Object object, final String url, final Class<T> clazz) {
+ try {
+ final HttpEntity<?> request = new HttpEntity<>(object, getHttpHeaders());
+ return restTemplate.exchange(url, HttpMethod.POST, request, clazz);
+
+ } catch (final HttpClientErrorException httpClientErrorException) {
+ final String message = "Unable to invoke HTTP POST using url: " + url + ", Response: "
+ + httpClientErrorException.getRawStatusCode();
+ LOGGER.error(message, httpClientErrorException);
+ final int rawStatusCode = httpClientErrorException.getRawStatusCode();
+ if (rawStatusCode == HttpStatus.BAD_REQUEST.value() || rawStatusCode == HttpStatus.NOT_FOUND.value()) {
+ throw new InvalidRestRequestException("No result found for given url: " + url);
+ }
+ throw new RestProcessingException("Unable to invoke HTTP GET using URL: " + url);
+
+ } catch (final RestClientException restClientException) {
+ LOGGER.error("Unable to invoke HTTP POST using url: {}", url, restClientException);
+ throw new RestProcessingException("Unable to invoke HTTP GET using URL: " + url, restClientException);
+ }
+ }
+
+ private HttpHeaders getHttpHeaders() {
+ return httpHeadersProvider.getHttpHeaders();
+ }
+}