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authorning.xi <ning.xi@est.tech>2020-02-20 11:17:28 +0800
committerning.xi <ning.xi@est.tech>2020-02-20 12:36:05 +0800
commitffe99e4b5c10956ed05c8cd11c8a3fca78427cbb (patch)
tree154c44b9b92ceb69a97a06389363dd06b2488153
parent8d22852d50a9b76dd05f68fef2717bb37f3b5bc6 (diff)
remove code duplication in plugin-event-carrier
Issue-ID: POLICY-1884 Change-Id: I610d7ee34d640cc3a7d3381b24993ee9b6f76f2d Signed-off-by: ning.xi <ning.xi@est.tech>
-rw-r--r--plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restclient/src/main/java/org/onap/policy/apex/plugins/event/carrier/restclient/RestClientCarrierTechnologyParameters.java204
-rw-r--r--plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restclient/src/test/java/org/onap/policy/apex/plugins/event/carrier/restclient/RestClientCarrierTechnologyParametersTest.java2
-rw-r--r--plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restrequestor/src/main/java/org/onap/policy/apex/plugins/event/carrier/restrequestor/RestRequestorCarrierTechnologyParameters.java180
-rw-r--r--plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restrequestor/src/test/java/org/onap/policy/apex/plugins/event/carrier/restrequestor/RestRequestorCarrierTechnologyParametersTest.java2
-rw-r--r--services/services-engine/src/main/java/org/onap/policy/apex/service/parameters/carriertechnology/RestPluginCarrierTechnologyParameters.java277
5 files changed, 298 insertions, 367 deletions
diff --git a/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restclient/src/main/java/org/onap/policy/apex/plugins/event/carrier/restclient/RestClientCarrierTechnologyParameters.java b/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restclient/src/main/java/org/onap/policy/apex/plugins/event/carrier/restclient/RestClientCarrierTechnologyParameters.java
index 8d783c5cd..0b73a8793 100644
--- a/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restclient/src/main/java/org/onap/policy/apex/plugins/event/carrier/restclient/RestClientCarrierTechnologyParameters.java
+++ b/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restclient/src/main/java/org/onap/policy/apex/plugins/event/carrier/restclient/RestClientCarrierTechnologyParameters.java
@@ -34,7 +34,7 @@ import javax.ws.rs.core.MultivaluedMap;
import lombok.Getter;
import lombok.Setter;
import org.apache.commons.lang3.StringUtils;
-import org.onap.policy.apex.service.parameters.carriertechnology.CarrierTechnologyParameters;
+import org.onap.policy.apex.service.parameters.carriertechnology.RestPluginCarrierTechnologyParameters;
import org.onap.policy.common.parameters.GroupValidationResult;
import org.onap.policy.common.parameters.ValidationStatus;
import org.onap.policy.common.utils.validation.ParameterValidationUtils;
@@ -62,211 +62,23 @@ import org.slf4j.LoggerFactory;
//@formatter:on
@Setter
@Getter
-public class RestClientCarrierTechnologyParameters extends CarrierTechnologyParameters {
+public class RestClientCarrierTechnologyParameters extends RestPluginCarrierTechnologyParameters {
// Get a reference to the logger
private static final Logger LOGGER = LoggerFactory.getLogger(RestClientCarrierTechnologyParameters.class);
-
- /** The supported HTTP methods. */
- public enum HttpMethod {
- GET, PUT, POST, DELETE
- }
-
- /** The label of this carrier technology. */
- public static final String RESTCLIENT_CARRIER_TECHNOLOGY_LABEL = "RESTCLIENT";
-
- /** The producer plugin class for the REST carrier technology. */
- public static final String RESTCLIENT_EVENT_PRODUCER_PLUGIN_CLASS = ApexRestClientProducer.class.getName();
-
- /** The consumer plugin class for the REST carrier technology. */
- public static final String RESTCLIENT_EVENT_CONSUMER_PLUGIN_CLASS = ApexRestClientConsumer.class.getName();
-
- /** The default HTTP code filter, allows 2xx HTTP codes through. */
- public static final String DEFAULT_HTTP_CODE_FILTER = "[2][0-9][0-9]";
-
- // Commonly occurring strings
- private static final String HTTP_HEADERS = "httpHeaders";
- private static final String HTTP_CODE_FILTER = "httpCodeFilter";
-
- // Regular expression patterns for finding and checking keys in URLs
- private static final Pattern patternProperKey = Pattern.compile("(?<=\\{)[^}]*(?=\\})");
- private static final Pattern patternErrorKey =
- Pattern.compile("(\\{[^\\{}]*.?\\{)|(\\{[^\\{}]*$)|(\\}[^\\{}]*.?\\})|(^[^\\{}]*.?\\})|\\{\\s*\\}");
-
- private String url = null;
- private HttpMethod httpMethod = null;
- private String[][] httpHeaders = null;
- private String httpCodeFilter = DEFAULT_HTTP_CODE_FILTER;
-
/**
* Constructor to create a REST carrier technology parameters instance and register the instance with the parameter
* service.
*/
public RestClientCarrierTechnologyParameters() {
super();
-
+ CARRIER_TECHNOLOGY_LABEL = "RESTCLIENT";
+ EVENT_PRODUCER_PLUGIN_CLASS = ApexRestClientProducer.class.getName();
+ EVENT_CONSUMER_PLUGIN_CLASS = ApexRestClientConsumer.class.getName();
// Set the carrier technology properties for the web socket carrier technology
- this.setLabel(RESTCLIENT_CARRIER_TECHNOLOGY_LABEL);
- this.setEventProducerPluginClass(RESTCLIENT_EVENT_PRODUCER_PLUGIN_CLASS);
- this.setEventConsumerPluginClass(RESTCLIENT_EVENT_CONSUMER_PLUGIN_CLASS);
- }
-
- /**
- * Check if http headers have been set for the REST request.
- *
- * @return true if headers have been set
- */
- public boolean checkHttpHeadersSet() {
- return httpHeaders != null && httpHeaders.length > 0;
+ this.setLabel(CARRIER_TECHNOLOGY_LABEL);
+ this.setEventProducerPluginClass(EVENT_PRODUCER_PLUGIN_CLASS);
+ this.setEventConsumerPluginClass(EVENT_CONSUMER_PLUGIN_CLASS);
}
- /**
- * Gets the http headers for the REST request as a multivalued map.
- *
- * @return the headers
- */
- public MultivaluedMap<String, Object> getHttpHeadersAsMultivaluedMap() {
- if (httpHeaders == null) {
- return null;
- }
-
- // Load the HTTP headers into the map
- MultivaluedMap<String, Object> httpHeaderMap = new MultivaluedHashMap<>();
-
- for (String[] httpHeader : httpHeaders) {
- httpHeaderMap.putSingle(httpHeader[0], httpHeader[1]);
- }
-
- return httpHeaderMap;
- }
-
- /**
- * Sets the header for the REST request.
- *
- * @param httpHeaders the incoming HTTP headers
- */
- public void setHttpHeaders(final String[][] httpHeaders) {
- this.httpHeaders = httpHeaders;
- }
-
- /**
- * Get the tag for the REST Producer Properties.
- *
- * @return set of the tags
- */
- public Set<String> getKeysFromUrl() {
- Matcher matcher = patternProperKey.matcher(getUrl());
- Set<String> key = new HashSet<>();
- while (matcher.find()) {
- key.add(matcher.group());
- }
- return key;
- }
- /**
- * {@inheritDoc}.
- */
- @Override
- public GroupValidationResult validate() {
- GroupValidationResult result = super.validate();
-
- result = validateUrl(result);
-
- result = validateHttpHeaders(result);
-
- return validateHttpCodeFilter(result);
- }
-
- // @formatter:off
- /**
- * Validate the URL.
- *
- * <p>Checks:
- * http://www.blah.com/{par1/somethingelse (Missing end tag) use {[^\\{}]*$
- * http://www.blah.com/{par1/{some}thingelse (Nested tag) use {[^}]*{
- * http://www.blah.com/{par1}/some}thingelse (Missing start tag1) use }[^{}]*.}
- * http://www.blah.com/par1}/somethingelse (Missing start tag2) use }[^{}]*}
- * http://www.blah.com/{}/somethingelse (Empty tag) use {[\s]*}
- * @param result the result of the validation
- */
- // @formatter:on
- private GroupValidationResult validateUrl(final GroupValidationResult result) {
- // Check if the URL has been set for event output
- if (getUrl() == null) {
- result.setResult("url", ValidationStatus.INVALID, "no URL has been set for event sending on REST client");
- return result;
- }
-
- Matcher matcher = patternErrorKey.matcher(getUrl());
- if (matcher.find()) {
- result.setResult("url", ValidationStatus.INVALID,
- "no proper URL has been set for event sending on REST client");
- }
-
- return result;
- }
-
- /**
- * Validate the HTTP headers.
- *
- * @param result the result of the validation
- */
- private GroupValidationResult validateHttpHeaders(final GroupValidationResult result) {
- if (httpHeaders == null) {
- return result;
- }
-
- for (String[] httpHeader : httpHeaders) {
- if (httpHeader == null) {
- result.setResult(HTTP_HEADERS, ValidationStatus.INVALID, "HTTP header array entry is null");
- } else if (httpHeader.length != 2) {
- result.setResult(HTTP_HEADERS, ValidationStatus.INVALID,
- "HTTP header array entries must have one key and one value: "
- + Arrays.deepToString(httpHeader));
- } else if (!ParameterValidationUtils.validateStringParameter(httpHeader[0])) {
- result.setResult(HTTP_HEADERS, ValidationStatus.INVALID,
- "HTTP header key is null or blank: " + Arrays.deepToString(httpHeader));
- } else if (!ParameterValidationUtils.validateStringParameter(httpHeader[1])) {
- result.setResult(HTTP_HEADERS, ValidationStatus.INVALID,
- "HTTP header value is null or blank: " + Arrays.deepToString(httpHeader));
- }
- }
-
- return result;
- }
-
- /**
- * Validate the HTTP code filter.
- *
- * @param result the result of the validation
- */
- public GroupValidationResult validateHttpCodeFilter(final GroupValidationResult result) {
- if (httpCodeFilter == null) {
- httpCodeFilter = DEFAULT_HTTP_CODE_FILTER;
-
- } else if (StringUtils.isBlank(httpCodeFilter)) {
- result.setResult(HTTP_CODE_FILTER, ValidationStatus.INVALID,
- "HTTP code filter must be specified as a three digit regular expression");
- } else {
- try {
- Pattern.compile(httpCodeFilter);
- } catch (PatternSyntaxException pse) {
- String message =
- "Invalid HTTP code filter, the filter must be specified as a three digit regular expression: "
- + pse.getMessage();
- result.setResult(HTTP_CODE_FILTER, ValidationStatus.INVALID, message);
- LOGGER.debug(message, pse);
- }
- }
-
- return result;
- }
-
- /**
- * {@inheritDoc}.
- */
- @Override
- public String toString() {
- return "RestClientCarrierTechnologyParameters [url=" + url + ", httpMethod=" + httpMethod + ", httpHeaders="
- + Arrays.deepToString(httpHeaders) + ", httpCodeFilter=" + httpCodeFilter + "]";
- }
}
diff --git a/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restclient/src/test/java/org/onap/policy/apex/plugins/event/carrier/restclient/RestClientCarrierTechnologyParametersTest.java b/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restclient/src/test/java/org/onap/policy/apex/plugins/event/carrier/restclient/RestClientCarrierTechnologyParametersTest.java
index ef0384f9c..0e4ddd0a3 100644
--- a/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restclient/src/test/java/org/onap/policy/apex/plugins/event/carrier/restclient/RestClientCarrierTechnologyParametersTest.java
+++ b/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restclient/src/test/java/org/onap/policy/apex/plugins/event/carrier/restclient/RestClientCarrierTechnologyParametersTest.java
@@ -175,7 +175,7 @@ public class RestClientCarrierTechnologyParametersTest {
rrctp.setHttpMethod(RestClientCarrierTechnologyParameters.HttpMethod.DELETE);
assertEquals(RestClientCarrierTechnologyParameters.HttpMethod.DELETE, rrctp.getHttpMethod());
- assertEquals("RestClientCarrierTechnologyParameters "
+ assertEquals("RESTCLIENTCarrierTechnologyParameters "
+ "[url=http://some.where, httpMethod=DELETE, httpHeaders=[[aaa, bbb], [ccc, ddd]], "
+ "httpCodeFilter=[1-5][0][0-5]]", rrctp.toString());
}
diff --git a/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restrequestor/src/main/java/org/onap/policy/apex/plugins/event/carrier/restrequestor/RestRequestorCarrierTechnologyParameters.java b/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restrequestor/src/main/java/org/onap/policy/apex/plugins/event/carrier/restrequestor/RestRequestorCarrierTechnologyParameters.java
index e66ff608a..0d122c67b 100644
--- a/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restrequestor/src/main/java/org/onap/policy/apex/plugins/event/carrier/restrequestor/RestRequestorCarrierTechnologyParameters.java
+++ b/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restrequestor/src/main/java/org/onap/policy/apex/plugins/event/carrier/restrequestor/RestRequestorCarrierTechnologyParameters.java
@@ -34,7 +34,7 @@ import javax.ws.rs.core.MultivaluedMap;
import lombok.Getter;
import lombok.Setter;
import org.apache.commons.lang3.StringUtils;
-import org.onap.policy.apex.service.parameters.carriertechnology.CarrierTechnologyParameters;
+import org.onap.policy.apex.service.parameters.carriertechnology.RestPluginCarrierTechnologyParameters;
import org.onap.policy.common.parameters.GroupValidationResult;
import org.onap.policy.common.parameters.ValidationStatus;
import org.onap.policy.common.utils.validation.ParameterValidationUtils;
@@ -63,25 +63,11 @@ import org.slf4j.LoggerFactory;
//@formatter:on
@Getter
@Setter
-public class RestRequestorCarrierTechnologyParameters extends CarrierTechnologyParameters {
+public class RestRequestorCarrierTechnologyParameters extends RestPluginCarrierTechnologyParameters {
// Get a reference to the logger
private static final Logger LOGGER = LoggerFactory.getLogger(RestRequestorCarrierTechnologyParameters.class);
- /** The supported HTTP methods. */
- public enum HttpMethod {
- GET, PUT, POST, DELETE
- }
-
- /** The label of this carrier technology. */
- public static final String RESTREQUESTOR_CARRIER_TECHNOLOGY_LABEL = "RESTREQUESTOR";
-
- /** The producer plugin class for the REST carrier technology. */
- public static final String RESTREQUSTOR_EVENT_PRODUCER_PLUGIN_CLASS =
- ApexRestRequestorProducer.class.getName();
- /** The consumer plugin class for the REST carrier technology. */
- public static final String RESTREQUSTOR_EVENT_CONSUMER_PLUGIN_CLASS =
- ApexRestRequestorConsumer.class.getName();
/** The default HTTP method for request events. */
public static final HttpMethod DEFAULT_REQUESTOR_HTTP_METHOD = HttpMethod.GET;
@@ -89,23 +75,6 @@ public class RestRequestorCarrierTechnologyParameters extends CarrierTechnologyP
/** The default timeout for REST requests. */
public static final long DEFAULT_REST_REQUEST_TIMEOUT = 500;
- /** The default HTTP code filter, allows 2xx HTTP codes through. */
- public static final String DEFAULT_HTTP_CODE_FILTER = "[2][0-9][0-9]";
-
- // Commonly occurring strings
- private static final String HTTP_HEADERS = "httpHeaders";
- private static final String HTTP_CODE_FILTER = "httpCodeFilter";
-
- // Regular expression patterns for finding and checking keys in URLs
- private static final Pattern patternProperKey = Pattern.compile("(?<=\\{)[^}]*(?=\\})");
- private static final Pattern patternErrorKey =
- Pattern.compile("(\\{[^\\{}]*.?\\{)|(\\{[^\\{}]*$)|(\\}[^\\{}]*.?\\})|(^[^\\{}]*.?\\})|\\{\\s*\\}");
-
- private String url = null;
- private HttpMethod httpMethod = null;
- private String[][] httpHeaders = null;
- private String httpCodeFilter = DEFAULT_HTTP_CODE_FILTER;
-
/**
* Constructor to create a REST carrier technology parameters instance and register the instance with the parameter
* service.
@@ -114,76 +83,13 @@ public class RestRequestorCarrierTechnologyParameters extends CarrierTechnologyP
super();
// Set the carrier technology properties for the web socket carrier technology
- this.setLabel(RESTREQUESTOR_CARRIER_TECHNOLOGY_LABEL);
- this.setEventProducerPluginClass(RESTREQUSTOR_EVENT_PRODUCER_PLUGIN_CLASS);
- this.setEventConsumerPluginClass(RESTREQUSTOR_EVENT_CONSUMER_PLUGIN_CLASS);
- }
-
- /**
- * Check if http headers have been set for the REST request.
- *
- * @return true if headers have beenset
- */
- public boolean checkHttpHeadersSet() {
- return httpHeaders != null && httpHeaders.length > 0;
- }
-
- /**
- * Gets the http headers for the REST request as a multivalued map.
- *
- * @return the headers
- */
- public MultivaluedMap<String, Object> getHttpHeadersAsMultivaluedMap() {
- if (httpHeaders == null) {
- return null;
- }
-
- // Load the HTTP headers into the map
- MultivaluedMap<String, Object> httpHeaderMap = new MultivaluedHashMap<>();
-
- for (String[] httpHeader : httpHeaders) {
- httpHeaderMap.putSingle(httpHeader[0], httpHeader[1]);
- }
-
- return httpHeaderMap;
- }
-
- /**
- * Sets the header for the REST request.
- *
- * @param httpHeaders the incoming HTTP headers
- */
- public void setHttpHeaders(final String[][] httpHeaders) {
- this.httpHeaders = httpHeaders;
- }
-
- /**
- * Get the tag for the REST Producer Properties.
- *
- * @return set of the tags
- */
- public Set<String> getKeysFromUrl() {
- Matcher matcher = patternProperKey.matcher(getUrl());
- Set<String> key = new HashSet<>();
- while (matcher.find()) {
- key.add(matcher.group());
- }
- return key;
- }
-
-
- /**
- * {@inheritDoc}.
- */
- @Override
- public GroupValidationResult validate() {
- GroupValidationResult result = super.validate();
-
- result = validateUrl(result);
-
- result = validateHttpHeaders(result);
-
- return validateHttpCodeFilter(result);
+ CARRIER_TECHNOLOGY_LABEL = "RESTREQUESTOR";
+ EVENT_PRODUCER_PLUGIN_CLASS = ApexRestRequestorProducer.class.getName();
+ EVENT_CONSUMER_PLUGIN_CLASS = ApexRestRequestorConsumer.class.getName();
+ // Set the carrier technology properties for the web socket carrier technology
+ this.setLabel(CARRIER_TECHNOLOGY_LABEL);
+ this.setEventProducerPluginClass(EVENT_PRODUCER_PLUGIN_CLASS);
+ this.setEventConsumerPluginClass(EVENT_CONSUMER_PLUGIN_CLASS);
}
// @formatter:off
@@ -199,7 +105,8 @@ public class RestRequestorCarrierTechnologyParameters extends CarrierTechnologyP
* @param result the result of the validation
*/
// @formatter:on
- private GroupValidationResult validateUrl(final GroupValidationResult result) {
+ @Override
+ public GroupValidationResult validateUrl(final GroupValidationResult result) {
// URL is only set on Requestor consumers
if (getUrl() == null) {
return result;
@@ -213,69 +120,4 @@ public class RestRequestorCarrierTechnologyParameters extends CarrierTechnologyP
return result;
}
-
- /**
- * Validate the HTTP headers.
- *
- * @param result the result of the validation
- */
- private GroupValidationResult validateHttpHeaders(final GroupValidationResult result) {
- if (httpHeaders == null) {
- return result;
- }
-
- for (String[] httpHeader : httpHeaders) {
- if (httpHeader == null) {
- result.setResult(HTTP_HEADERS, ValidationStatus.INVALID, "HTTP header array entry is null");
- } else if (httpHeader.length != 2) {
- result.setResult(HTTP_HEADERS, ValidationStatus.INVALID,
- "HTTP header array entries must have one key and one value: "
- + Arrays.deepToString(httpHeader));
- } else if (!ParameterValidationUtils.validateStringParameter(httpHeader[0])) {
- result.setResult(HTTP_HEADERS, ValidationStatus.INVALID,
- "HTTP header key is null or blank: " + Arrays.deepToString(httpHeader));
- } else if (!ParameterValidationUtils.validateStringParameter(httpHeader[1])) {
- result.setResult(HTTP_HEADERS, ValidationStatus.INVALID,
- "HTTP header value is null or blank: " + Arrays.deepToString(httpHeader));
- }
- }
-
- return result;
- }
-
- /**
- * Validate the HTTP code filter.
- *
- * @param result the result of the validation
- */
- public GroupValidationResult validateHttpCodeFilter(final GroupValidationResult result) {
- if (httpCodeFilter == null) {
- httpCodeFilter = DEFAULT_HTTP_CODE_FILTER;
-
- } else if (StringUtils.isBlank(httpCodeFilter)) {
- result.setResult(HTTP_CODE_FILTER, ValidationStatus.INVALID,
- "HTTP code filter must be specified as a three digit regular expression");
- } else {
- try {
- Pattern.compile(httpCodeFilter);
- } catch (PatternSyntaxException pse) {
- String message =
- "Invalid HTTP code filter, the filter must be specified as a three digit regular expression: "
- + pse.getMessage();
- result.setResult(HTTP_CODE_FILTER, ValidationStatus.INVALID, message);
- LOGGER.debug(message, pse);
- }
- }
-
- return result;
- }
-
- /**
- * {@inheritDoc}.
- */
- @Override
- public String toString() {
- return "RESTRequestorCarrierTechnologyParameters [url=" + url + ", httpMethod=" + httpMethod + ", httpHeaders="
- + Arrays.deepToString(httpHeaders) + ", httpCodeFilter=" + httpCodeFilter + "]";
- }
}
diff --git a/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restrequestor/src/test/java/org/onap/policy/apex/plugins/event/carrier/restrequestor/RestRequestorCarrierTechnologyParametersTest.java b/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restrequestor/src/test/java/org/onap/policy/apex/plugins/event/carrier/restrequestor/RestRequestorCarrierTechnologyParametersTest.java
index 96cf8490b..b9b997f09 100644
--- a/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restrequestor/src/test/java/org/onap/policy/apex/plugins/event/carrier/restrequestor/RestRequestorCarrierTechnologyParametersTest.java
+++ b/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restrequestor/src/test/java/org/onap/policy/apex/plugins/event/carrier/restrequestor/RestRequestorCarrierTechnologyParametersTest.java
@@ -162,7 +162,7 @@ public class RestRequestorCarrierTechnologyParametersTest {
rrctp.setHttpMethod(RestRequestorCarrierTechnologyParameters.HttpMethod.DELETE);
assertEquals(RestRequestorCarrierTechnologyParameters.HttpMethod.DELETE, rrctp.getHttpMethod());
- assertEquals("RESTRequestorCarrierTechnologyParameters "
+ assertEquals("RESTREQUESTORCarrierTechnologyParameters "
+ "[url=http://some.where, httpMethod=DELETE, httpHeaders=[[aaa, bbb], [ccc, ddd]],"
+ " httpCodeFilter=[1-5][0][0-5]]", rrctp.toString());
}
diff --git a/services/services-engine/src/main/java/org/onap/policy/apex/service/parameters/carriertechnology/RestPluginCarrierTechnologyParameters.java b/services/services-engine/src/main/java/org/onap/policy/apex/service/parameters/carriertechnology/RestPluginCarrierTechnologyParameters.java
new file mode 100644
index 000000000..f548f636a
--- /dev/null
+++ b/services/services-engine/src/main/java/org/onap/policy/apex/service/parameters/carriertechnology/RestPluginCarrierTechnologyParameters.java
@@ -0,0 +1,277 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * Modifications 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.policy.apex.service.parameters.carriertechnology;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.regex.PatternSyntaxException;
+
+import javax.ws.rs.core.MultivaluedHashMap;
+import javax.ws.rs.core.MultivaluedMap;
+
+import lombok.Getter;
+import lombok.Setter;
+import org.apache.commons.lang3.StringUtils;
+import org.onap.policy.apex.service.parameters.carriertechnology.CarrierTechnologyParameters;
+import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.common.parameters.ValidationStatus;
+import org.onap.policy.common.utils.validation.ParameterValidationUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+// @formatter:off
+/**
+ * Apex plugin parameters for REST as an event carrier technology with Apex.
+ *
+ * <p>The parameters for this plugin are:
+ * <ol>
+ * <li>url: The URL that the Apex Rest client will connect to over REST for event reception or event sending. This
+ * parameter is mandatory.
+ * <li>httpMethod: The HTTP method to use when sending events over REST, legal values are POST (default) and PUT. When
+ * receiving events, the REST client plugin always uses the HTTP GET method.
+ * <li>httpHeaders, the HTTP headers to send on REST requests, optional parameter, defaults to none.
+ * <li>httpCodeFilter: a regular expression filter for returned HTTP codes, if the returned HTTP code passes this
+ * filter, then the request is assumed to have succeeded by the plugin, optional, defaults to allowing 2xx codes
+ * through, that is a regular expression of "[2][0-9][0-9]"
+ * </ol>
+ *
+ * @author Ning Xi(ning.xi@ericsson.com)
+ */
+//@formatter:on
+@Setter
+@Getter
+public class RestPluginCarrierTechnologyParameters extends CarrierTechnologyParameters {
+ // Get a reference to the logger
+ private static final Logger LOGGER = LoggerFactory.getLogger(RestPluginCarrierTechnologyParameters.class);
+
+ /** The supported HTTP methods. */
+ public enum HttpMethod {
+ GET, PUT, POST, DELETE
+ }
+
+ /** The label of this carrier technology. */
+ protected String CARRIER_TECHNOLOGY_LABEL;
+
+ /** The producer plugin class for the REST carrier technology. */
+ protected String EVENT_PRODUCER_PLUGIN_CLASS;
+
+ /** The consumer plugin class for the REST carrier technology. */
+ protected String EVENT_CONSUMER_PLUGIN_CLASS;
+
+ /** The default HTTP code filter, allows 2xx HTTP codes through. */
+ public static final String DEFAULT_HTTP_CODE_FILTER = "[2][0-9][0-9]";
+
+ // Commonly occurring strings
+ private static final String HTTP_HEADERS = "httpHeaders";
+ private static final String HTTP_CODE_FILTER = "httpCodeFilter";
+
+ // Regular expression patterns for finding and checking keys in URLs
+ private static final Pattern patternProperKey = Pattern.compile("(?<=\\{)[^}]*(?=\\})");
+ protected static final Pattern patternErrorKey =
+ Pattern.compile("(\\{[^\\{}]*.?\\{)|(\\{[^\\{}]*$)|(\\}[^\\{}]*.?\\})|(^[^\\{}]*.?\\})|\\{\\s*\\}");
+
+ //variable
+ protected String url = null;
+ protected HttpMethod httpMethod = null;
+ protected String[][] httpHeaders = null;
+ protected String httpCodeFilter = DEFAULT_HTTP_CODE_FILTER;
+
+ /**
+ * Constructor to create a REST carrier technology parameters instance and register the instance with the parameter
+ * service.
+ */
+ public RestPluginCarrierTechnologyParameters() {
+ super();
+
+ // Set the carrier technology properties for the web socket carrier technology
+ CARRIER_TECHNOLOGY_LABEL = "RESTPLUGIN";
+ EVENT_PRODUCER_PLUGIN_CLASS = "PRODUCER";
+ EVENT_CONSUMER_PLUGIN_CLASS = "CONSUMER";
+ this.setLabel(CARRIER_TECHNOLOGY_LABEL);
+ this.setEventProducerPluginClass(EVENT_PRODUCER_PLUGIN_CLASS);
+ this.setEventConsumerPluginClass(EVENT_CONSUMER_PLUGIN_CLASS);
+ }
+
+ /**
+ * Check if http headers have been set for the REST request.
+ *
+ * @return true if headers have been set
+ */
+ public boolean checkHttpHeadersSet() {
+ return httpHeaders != null && httpHeaders.length > 0;
+ }
+
+ /**
+ * Gets the http headers for the REST request as a multivalued map.
+ *
+ * @return the headers
+ */
+ public MultivaluedMap<String, Object> getHttpHeadersAsMultivaluedMap() {
+ if (httpHeaders == null) {
+ return null;
+ }
+
+ // Load the HTTP headers into the map
+ MultivaluedMap<String, Object> httpHeaderMap = new MultivaluedHashMap<>();
+
+ for (String[] httpHeader : httpHeaders) {
+ httpHeaderMap.putSingle(httpHeader[0], httpHeader[1]);
+ }
+
+ return httpHeaderMap;
+ }
+
+ /**
+ * Sets the header for the REST request.
+ *
+ * @param httpHeaders the incoming HTTP headers
+ */
+ public void setHttpHeaders(final String[][] httpHeaders) {
+ this.httpHeaders = httpHeaders;
+ }
+
+ /**
+ * Get the tag for the REST Producer Properties.
+ *
+ * @return set of the tags
+ */
+ public Set<String> getKeysFromUrl() {
+ Matcher matcher = patternProperKey.matcher(getUrl());
+ Set<String> key = new HashSet<>();
+ while (matcher.find()) {
+ key.add(matcher.group());
+ }
+ return key;
+ }
+
+ /**
+ * {@inheritDoc}.
+ */
+ @Override
+ public GroupValidationResult validate() {
+ GroupValidationResult result = super.validate();
+
+ result = validateUrl(result);
+
+ result = validateHttpHeaders(result);
+
+ return validateHttpCodeFilter(result);
+ }
+
+ // @formatter:off
+ /**
+ * Validate the URL.
+ *
+ * <p>Checks:
+ * http://www.blah.com/{par1/somethingelse (Missing end tag) use {[^\\{}]*$
+ * http://www.blah.com/{par1/{some}thingelse (Nested tag) use {[^}]*{
+ * http://www.blah.com/{par1}/some}thingelse (Missing start tag1) use }[^{}]*.}
+ * http://www.blah.com/par1}/somethingelse (Missing start tag2) use }[^{}]*}
+ * http://www.blah.com/{}/somethingelse (Empty tag) use {[\s]*}
+ * @param result the result of the validation
+ */
+ // @formatter:on
+ public GroupValidationResult validateUrl(final GroupValidationResult result) {
+ // Check if the URL has been set for event output
+ String URL_ERROR_MSG = "no URL has been set for event sending on " + CARRIER_TECHNOLOGY_LABEL;
+ if (getUrl() == null) {
+ result.setResult("url", ValidationStatus.INVALID, URL_ERROR_MSG);
+ return result;
+ }
+
+ Matcher matcher = patternErrorKey.matcher(getUrl());
+ if (matcher.find()) {
+ result.setResult("url", ValidationStatus.INVALID,
+ URL_ERROR_MSG);
+ }
+
+ return result;
+ }
+
+ /**
+ * Validate the HTTP headers.
+ *
+ * @param result the result of the validation
+ */
+ private GroupValidationResult validateHttpHeaders(final GroupValidationResult result) {
+ if (httpHeaders == null) {
+ return result;
+ }
+
+ for (String[] httpHeader : httpHeaders) {
+ if (httpHeader == null) {
+ result.setResult(HTTP_HEADERS, ValidationStatus.INVALID, "HTTP header array entry is null");
+ } else if (httpHeader.length != 2) {
+ result.setResult(HTTP_HEADERS, ValidationStatus.INVALID,
+ "HTTP header array entries must have one key and one value: "
+ + Arrays.deepToString(httpHeader));
+ } else if (!ParameterValidationUtils.validateStringParameter(httpHeader[0])) {
+ result.setResult(HTTP_HEADERS, ValidationStatus.INVALID,
+ "HTTP header key is null or blank: " + Arrays.deepToString(httpHeader));
+ } else if (!ParameterValidationUtils.validateStringParameter(httpHeader[1])) {
+ result.setResult(HTTP_HEADERS, ValidationStatus.INVALID,
+ "HTTP header value is null or blank: " + Arrays.deepToString(httpHeader));
+ }
+ }
+
+ return result;
+ }
+
+ /**
+ * Validate the HTTP code filter.
+ *
+ * @param result the result of the validation
+ */
+ public GroupValidationResult validateHttpCodeFilter(final GroupValidationResult result) {
+ if (httpCodeFilter == null) {
+ httpCodeFilter = DEFAULT_HTTP_CODE_FILTER;
+
+ } else if (StringUtils.isBlank(httpCodeFilter)) {
+ result.setResult(HTTP_CODE_FILTER, ValidationStatus.INVALID,
+ "HTTP code filter must be specified as a three digit regular expression");
+ } else {
+ try {
+ Pattern.compile(httpCodeFilter);
+ } catch (PatternSyntaxException pse) {
+ String message =
+ "Invalid HTTP code filter, the filter must be specified as a three digit regular expression: "
+ + pse.getMessage();
+ result.setResult(HTTP_CODE_FILTER, ValidationStatus.INVALID, message);
+ LOGGER.debug(message, pse);
+ }
+ }
+
+ return result;
+ }
+
+ /**
+ * {@inheritDoc}.
+ */
+ @Override
+ public String toString() {
+ return CARRIER_TECHNOLOGY_LABEL +"CarrierTechnologyParameters [url=" + url + ", httpMethod=" + httpMethod + ", httpHeaders="
+ + Arrays.deepToString(httpHeaders) + ", httpCodeFilter=" + httpCodeFilter + "]";
+ }
+}