Add functionality for reading ENV variables

Issue-ID: AAF-996
Signed-off-by: pwielebs <piotr.wielebski@nokia.com>
Change-Id: If216040d59390f0956bae7f747c8cb6bce2a7f9f

17 files changed, 932 insertions, 0 deletions

diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/CertServiceClient.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/CertServiceClient.java
index e5f1a6a0..4416d0ec 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/CertServiceClient.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/CertServiceClient.java
@@ -16,6 +16,7 @@
  * limitations under the License.
  * ============LICENSE_END=========================================================
  */
+
 package org.onap.aaf.certservice.client;
 
 public class CertServiceClient {
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/ClientConfigurationEnvs.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/ClientConfigurationEnvs.java
new file mode 100644
index 00000000..57e46be9
--- /dev/null
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/ClientConfigurationEnvs.java
@@ -0,0 +1,28 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.aaf.certservice.client.common;
+
+public enum ClientConfigurationEnvs {
+    REQUEST_URL,
+    REQUEST_TIMEOUT,
+    OUTPUT_PATH,
+    CA_NAME
+}
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/CsrConfigurationEnvs.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/CsrConfigurationEnvs.java
new file mode 100644
index 00000000..5913b73b
--- /dev/null
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/CsrConfigurationEnvs.java
@@ -0,0 +1,31 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.aaf.certservice.client.common;
+
+public enum CsrConfigurationEnvs {
+    COMMON_NAME,
+    ORGANIZATION,
+    ORGANIZATION_UNIT,
+    LOCATION,
+    STATE,
+    COUNTRY,
+    SANS
+}
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/EnvProvider.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/EnvProvider.java
new file mode 100644
index 00000000..fce2568b
--- /dev/null
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/EnvProvider.java
@@ -0,0 +1,29 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.aaf.certservice.client.common;
+
+import org.onap.aaf.certservice.client.exceptions.ClientConfigurationException;
+
+public class EnvProvider {
+    public String readEnvVariable(String envVariable) throws ClientConfigurationException {
+        return System.getProperty(envVariable);
+    }
+}
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/EnvValidationUtils.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/EnvValidationUtils.java
new file mode 100644
index 00000000..bd71c3cd
--- /dev/null
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/EnvValidationUtils.java
@@ -0,0 +1,68 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.aaf.certservice.client.common;
+
+import java.util.regex.Pattern;
+
+public final class EnvValidationUtils {
+
+    private EnvValidationUtils() {}
+
+    public static Boolean isPathValid(String path) {
+        return path.matches("^/|(/[a-zA-Z0-9_-]+)+$");
+    }
+
+    public static Boolean isAlphaNumeric(String caName) {
+        return caName.matches("^[a-zA-Z0-9]*$");
+    }
+
+    public static Boolean isEnvExists(String envValue) {
+        return envValue != null && !"".equals(envValue);
+    }
+
+    public static Boolean isCountryValid(String country) {
+        return country.matches("^([A-Z][A-Z])$");
+    }
+
+    public static Boolean isCommonNameValid(String commonName) {
+        return !isSpecialCharsPresent(commonName) &&
+                !isHttpProtocolsPresent(commonName) &&
+                !isIpAddressPresent(commonName) &&
+                !isPortNumberPresent(commonName);
+    }
+
+    static Boolean isPortNumberPresent(String stringToCheck) {
+        return Pattern.compile(":[0-9]{1,5}").matcher(stringToCheck).find();
+    }
+
+    static Boolean isIpAddressPresent(String stringToCheck) {
+        return Pattern.compile("[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}").matcher(stringToCheck).find();
+    }
+
+    static Boolean isHttpProtocolsPresent(String stringToCheck) {
+        return Pattern.compile("[h][t][t][p][:][/][/]|[h][t][t][p][s][:][/][/]").matcher(stringToCheck).find();
+    }
+
+
+    public static Boolean isSpecialCharsPresent(String stringToCheck) {
+        return Pattern.compile("[~#@*$+%!()?/{}<>\\|_^]").matcher(stringToCheck).find();
+    }
+}
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/EnvsForClient.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/EnvsForClient.java
new file mode 100644
index 00000000..1ba32a3f
--- /dev/null
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/EnvsForClient.java
@@ -0,0 +1,53 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.aaf.certservice.client.common;
+
+public class EnvsForClient {
+
+    private String urlToCertService;
+    private String requestTimeOut;
+    private String outputPath;
+    private String caName;
+
+    EnvsForClient() {
+        EnvProvider envProvider = new EnvProvider();
+        this.urlToCertService = envProvider.readEnvVariable(ClientConfigurationEnvs.REQUEST_URL.toString());
+        this.requestTimeOut = envProvider.readEnvVariable(ClientConfigurationEnvs.REQUEST_TIMEOUT.toString());
+        this.outputPath = envProvider.readEnvVariable(ClientConfigurationEnvs.OUTPUT_PATH.toString());
+        this.caName = envProvider.readEnvVariable(ClientConfigurationEnvs.CA_NAME.toString());
+    }
+
+    public String getUrlToCertService() {
+        return urlToCertService;
+    }
+
+    public String getRequestTimeOut() {
+        return requestTimeOut;
+    }
+
+    public String getOutputPath() {
+        return outputPath;
+    }
+
+    public String getCaName() {
+        return caName;
+    }
+}
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/EnvsForCsr.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/EnvsForCsr.java
new file mode 100644
index 00000000..1f6c9c96
--- /dev/null
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/common/EnvsForCsr.java
@@ -0,0 +1,71 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.aaf.certservice.client.common;
+
+public class EnvsForCsr {
+    private String commonName;
+    private String organization;
+    private String organizationUnit;
+    private String location;
+    private String state;
+    private String country;
+    private String subjectAlternativesName;
+
+    EnvsForCsr() {
+        EnvProvider envProvider = new EnvProvider();
+        this.commonName = envProvider.readEnvVariable(CsrConfigurationEnvs.COMMON_NAME.toString());
+        this.organization = envProvider.readEnvVariable(CsrConfigurationEnvs.ORGANIZATION.toString());
+        this.organizationUnit = envProvider.readEnvVariable(CsrConfigurationEnvs.ORGANIZATION_UNIT.toString());
+        this.location = envProvider.readEnvVariable(CsrConfigurationEnvs.LOCATION.toString());
+        this.state = envProvider.readEnvVariable(CsrConfigurationEnvs.STATE.toString());
+        this.country = envProvider.readEnvVariable(CsrConfigurationEnvs.COUNTRY.toString());
+        this.subjectAlternativesName = envProvider.readEnvVariable(CsrConfigurationEnvs.SANS.toString());
+    }
+
+    public String getCommonName() {
+        return commonName;
+    }
+
+    public String getOrganization() {
+        return organization;
+    }
+
+    public String getOrganizationUnit() {
+        return organizationUnit;
+    }
+
+    public String getLocation() {
+        return location;
+    }
+
+    public String getState() {
+        return state;
+    }
+
+    public String getCountry() {
+        return country;
+    }
+
+
+    public String getSubjectAlternativesName() {
+        return subjectAlternativesName;
+    }
+}
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/exceptions/ClientConfigurationException.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/exceptions/ClientConfigurationException.java
new file mode 100644
index 00000000..c895e176
--- /dev/null
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/exceptions/ClientConfigurationException.java
@@ -0,0 +1,28 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.aaf.certservice.client.exceptions;
+
+
+public class ClientConfigurationException extends RuntimeException {
+    public ClientConfigurationException(String message) {
+        super(message);
+    }
+}
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/exceptions/CsrConfigurationException.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/exceptions/CsrConfigurationException.java
new file mode 100644
index 00000000..83e38c32
--- /dev/null
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/exceptions/CsrConfigurationException.java
@@ -0,0 +1,28 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.aaf.certservice.client.exceptions;
+
+
+public class CsrConfigurationException extends RuntimeException {
+    public CsrConfigurationException(String message) {
+        super(message);
+    }
+}
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/AbstractConfigurationFactory.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/AbstractConfigurationFactory.java
new file mode 100644
index 00000000..6adbc038
--- /dev/null
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/AbstractConfigurationFactory.java
@@ -0,0 +1,25 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.aaf.certservice.client.model;
+
+public interface AbstractConfigurationFactory<T extends ConfigurationModel> {
+    T create();
+}
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/ClientConfiguration.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/ClientConfiguration.java
new file mode 100644
index 00000000..4dda61ea
--- /dev/null
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/ClientConfiguration.java
@@ -0,0 +1,75 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.aaf.certservice.client.model;
+
+public class ClientConfiguration implements ConfigurationModel{
+
+    Integer DEFAULT_TIMEOUT_MS = 30000;
+    String DEFAULT_REQUEST_URL = "http://cert-service:8080/v1/certificate/";
+
+    private String urlToCertService;
+    private Integer requestTimeout;
+    private String certsOutputPath;
+    private String caName;
+
+
+    public ClientConfiguration() {
+        urlToCertService = DEFAULT_REQUEST_URL;
+        requestTimeout = DEFAULT_TIMEOUT_MS;
+    }
+
+
+    public String getUrlToCertService() {
+        return urlToCertService;
+    }
+
+    public ClientConfiguration setUrlToCertService(String urlToCertService) {
+        this.urlToCertService = urlToCertService;
+        return this;
+    }
+
+    public Integer getRequestTimeout() {
+        return requestTimeout;
+    }
+
+    public ClientConfiguration setRequestTimeout(Integer requestTimeout) {
+        this.requestTimeout = requestTimeout;
+        return this;
+    }
+
+    public String getCertsOutputPath() {
+        return certsOutputPath;
+    }
+
+    public ClientConfiguration setCertsOutputPath(String certsOutputPath) {
+        this.certsOutputPath = certsOutputPath;
+        return this;
+    }
+
+    public String getCaName() {
+        return caName;
+    }
+
+    public ClientConfiguration setCaName(String caName) {
+        this.caName = caName;
+        return this;
+    }
+}
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/ClientConfigurationFactory.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/ClientConfigurationFactory.java
new file mode 100644
index 00000000..43c6838c
--- /dev/null
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/ClientConfigurationFactory.java
@@ -0,0 +1,64 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.aaf.certservice.client.model;
+
+import org.onap.aaf.certservice.client.common.ClientConfigurationEnvs;
+import org.onap.aaf.certservice.client.common.EnvValidationUtils;
+import org.onap.aaf.certservice.client.common.EnvsForClient;
+import org.onap.aaf.certservice.client.exceptions.ClientConfigurationException;
+
+import java.util.Optional;
+
+class ClientConfigurationFactory implements AbstractConfigurationFactory<ClientConfiguration> {
+
+    private final EnvsForClient envsForClient;
+
+
+    ClientConfigurationFactory(EnvsForClient envsForClient) {
+        this.envsForClient = envsForClient;
+    }
+
+
+    @Override
+    public ClientConfiguration create() throws ClientConfigurationException {
+
+        ClientConfiguration configuration = new ClientConfiguration();
+
+        Optional.ofNullable(envsForClient.getUrlToCertService()).filter(EnvValidationUtils::isEnvExists)
+                .map(configuration::setUrlToCertService);
+
+        Optional.ofNullable(envsForClient.getRequestTimeOut()).filter(EnvValidationUtils::isEnvExists)
+                .map(timeout -> configuration.setRequestTimeout(Integer.valueOf(timeout)));
+
+        Optional.ofNullable(envsForClient.getOutputPath()).filter(EnvValidationUtils::isEnvExists)
+                .filter(EnvValidationUtils::isPathValid)
+                .map(configuration::setCertsOutputPath)
+                .orElseThrow(() -> new ClientConfigurationException(ClientConfigurationEnvs.OUTPUT_PATH + " is invalid."));
+
+        Optional.ofNullable(envsForClient.getCaName()).filter(EnvValidationUtils::isEnvExists)
+                .filter(EnvValidationUtils::isAlphaNumeric)
+                .map(configuration::setCaName)
+                .orElseThrow(() -> new ClientConfigurationException(ClientConfigurationEnvs.CA_NAME + " is invalid."));
+
+        return configuration;
+    }
+}
+
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/ConfigurationModel.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/ConfigurationModel.java
new file mode 100644
index 00000000..ca7deb72
--- /dev/null
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/ConfigurationModel.java
@@ -0,0 +1,24 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.aaf.certservice.client.model;
+
+public interface ConfigurationModel {
+}
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/CsrConfiguration.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/CsrConfiguration.java
new file mode 100644
index 00000000..27b6d931
--- /dev/null
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/CsrConfiguration.java
@@ -0,0 +1,97 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.aaf.certservice.client.model;
+
+
+public class CsrConfiguration implements ConfigurationModel {
+
+    private String commonName;
+    private String organization;
+    private String state;
+    private String country;
+    private String organizationUnit;
+    private String location;
+    private String subjectAlternativeNames;
+
+
+    public String getCommonName() {
+        return commonName;
+    }
+
+    public CsrConfiguration setCommonName(String commonName) {
+        this.commonName = commonName;
+        return this;
+    }
+
+    public String getOrganization() {
+        return organization;
+    }
+
+    public CsrConfiguration setOrganization(String organization) {
+        this.organization = organization;
+        return this;
+    }
+
+    public String getState() {
+        return state;
+    }
+
+    public CsrConfiguration setState(String state) {
+        this.state = state;
+        return this;
+    }
+
+    public String getCountry() {
+        return country;
+    }
+
+    public CsrConfiguration setCountry(String country) {
+        this.country = country;
+        return this;
+    }
+
+    public String getOrganizationUnit() {
+        return organizationUnit;
+    }
+
+    public CsrConfiguration setOrganizationUnit(String organizationUnit) {
+        this.organizationUnit = organizationUnit;
+        return this;
+    }
+
+    public String getLocation() {
+        return location;
+    }
+
+    public CsrConfiguration setLocation(String location) {
+        this.location = location;
+        return this;
+    }
+
+    public String getSubjectAlternativeNames() {
+        return subjectAlternativeNames;
+    }
+
+    public CsrConfiguration setSubjectAlternativeNames(String subjectAlternativeNames) {
+        this.subjectAlternativeNames = subjectAlternativeNames;
+        return this;
+    }
+}
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/CsrConfigurationFactory.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/CsrConfigurationFactory.java
new file mode 100644
index 00000000..1b3a252b
--- /dev/null
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/model/CsrConfigurationFactory.java
@@ -0,0 +1,75 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.aaf.certservice.client.model;
+
+import org.onap.aaf.certservice.client.common.CsrConfigurationEnvs;
+import org.onap.aaf.certservice.client.common.EnvValidationUtils;
+import org.onap.aaf.certservice.client.common.EnvsForCsr;
+import org.onap.aaf.certservice.client.exceptions.CsrConfigurationException;
+
+import java.util.Optional;
+
+class CsrConfigurationFactory implements AbstractConfigurationFactory<CsrConfiguration> {
+
+    private final EnvsForCsr envsForCsr;
+
+
+    CsrConfigurationFactory(EnvsForCsr envsForCsr) {
+        this.envsForCsr = envsForCsr;
+    }
+
+
+    @Override
+    public CsrConfiguration create() throws CsrConfigurationException {
+
+        CsrConfiguration configuration = new CsrConfiguration();
+
+        Optional.ofNullable(envsForCsr.getCommonName()).filter(EnvValidationUtils::isEnvExists)
+                .filter(EnvValidationUtils::isCommonNameValid)
+                .map(configuration::setCommonName)
+                .orElseThrow(() -> new CsrConfigurationException(CsrConfigurationEnvs.COMMON_NAME + " is invalid."));
+
+        Optional.ofNullable(envsForCsr.getOrganization()).filter(EnvValidationUtils::isEnvExists)
+                .filter(org -> !EnvValidationUtils.isSpecialCharsPresent(org))
+                .map(configuration::setOrganization)
+                .orElseThrow(() -> new CsrConfigurationException(CsrConfigurationEnvs.ORGANIZATION + " is invalid."));
+
+        Optional.ofNullable(envsForCsr.getState()).filter(EnvValidationUtils::isEnvExists)
+                .map(configuration::setState)
+                .orElseThrow(() -> new CsrConfigurationException(CsrConfigurationEnvs.STATE + " is invalid."));
+
+        Optional.ofNullable(envsForCsr.getCountry()).filter(EnvValidationUtils::isEnvExists)
+                .filter(EnvValidationUtils::isCountryValid)
+                .map(configuration::setCountry)
+                .orElseThrow(() -> new CsrConfigurationException(CsrConfigurationEnvs.COUNTRY + " is invalid."));
+
+        Optional.ofNullable(envsForCsr.getOrganizationUnit()).filter(EnvValidationUtils::isEnvExists)
+                .map(configuration::setOrganizationUnit);
+
+        Optional.ofNullable(envsForCsr.getLocation()).filter(EnvValidationUtils::isEnvExists)
+                .map(configuration::setLocation);
+
+        Optional.ofNullable(envsForCsr.getSubjectAlternativesName()).filter(EnvValidationUtils::isEnvExists)
+                .map(configuration::setSubjectAlternativeNames);
+
+        return configuration;
+    }
+}
diff --git a/certServiceClient/src/test/java/org/onap/aaf/certservice/client/model/ClientConfigurationFactoryTest.java b/certServiceClient/src/test/java/org/onap/aaf/certservice/client/model/ClientConfigurationFactoryTest.java
new file mode 100644
index 00000000..e21f2510
--- /dev/null
+++ b/certServiceClient/src/test/java/org/onap/aaf/certservice/client/model/ClientConfigurationFactoryTest.java
@@ -0,0 +1,126 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.aaf.certservice.client.model;
+
+import org.junit.jupiter.api.Test;
+import org.onap.aaf.certservice.client.common.ClientConfigurationEnvs;
+import org.onap.aaf.certservice.client.common.EnvsForClient;
+import org.onap.aaf.certservice.client.exceptions.ClientConfigurationException;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+public class ClientConfigurationFactoryTest {
+
+    final String CA_NAME_VALID =  "caaaftest2";
+    final String TIME_OUT_VALID = "30000";
+    final String OUTPUT_PATH_VALID = "/opt/app/osaaf";
+    final String URL_TO_CERT_SERVICE_VALID = "http://cert-service:8080/v1/certificate/";
+    final String CA_NAME_INVALID =  "caaaftest2#$";
+    final String OUTPUT_PATH_INVALID = "/opt//app/osaaf";
+
+    private EnvsForClient envsForClient = mock(EnvsForClient.class);
+
+
+    @Test
+    void create_shouldReturnSuccessWhenAllVariablesAreSetAndValid() {
+        // given
+        when(envsForClient.getCaName()).thenReturn(CA_NAME_VALID);
+        when(envsForClient.getOutputPath()).thenReturn(OUTPUT_PATH_VALID);
+        when(envsForClient.getRequestTimeOut()).thenReturn(TIME_OUT_VALID);
+        when(envsForClient.getUrlToCertService()).thenReturn(URL_TO_CERT_SERVICE_VALID);
+
+        // when
+        ClientConfiguration configuration = new ClientConfigurationFactory(envsForClient).create();
+
+        // then
+        assertThat(configuration.getCaName()).isEqualTo(CA_NAME_VALID);
+        assertThat(configuration.getRequestTimeout()).isEqualTo(Integer.valueOf(TIME_OUT_VALID));
+        assertThat(configuration.getCertsOutputPath()).isEqualTo(OUTPUT_PATH_VALID);
+        assertThat(configuration.getUrlToCertService()).isEqualTo(URL_TO_CERT_SERVICE_VALID);
+    }
+
+    @Test
+    void create_shouldReturnSuccessWhenDefaultVariablesAreNotSet() {
+        // given
+        when(envsForClient.getCaName()).thenReturn(CA_NAME_VALID);
+        when(envsForClient.getOutputPath()).thenReturn(OUTPUT_PATH_VALID);
+
+        // when
+        ClientConfiguration configuration = new ClientConfigurationFactory(envsForClient).create();
+
+        // then
+        assertThat(configuration.getCaName()).isEqualTo(CA_NAME_VALID);
+        assertThat(configuration.getRequestTimeout()).isEqualTo(Integer.valueOf(TIME_OUT_VALID));
+        assertThat(configuration.getCertsOutputPath()).isEqualTo(OUTPUT_PATH_VALID);
+        assertThat(configuration.getUrlToCertService()).isEqualTo(URL_TO_CERT_SERVICE_VALID);
+    }
+
+    @Test
+    void create_shouldReturnClientExceptionWhenRequiredVariableIsNotSet() {
+        // given
+        when(envsForClient.getOutputPath()).thenReturn(OUTPUT_PATH_VALID);
+
+        // when
+        ClientConfigurationFactory configurationFactory = new ClientConfigurationFactory(envsForClient);
+
+        // when/then
+        assertThatExceptionOfType(ClientConfigurationException.class)
+                .isThrownBy(configurationFactory::create)
+                .withMessageContaining(ClientConfigurationEnvs.CA_NAME + " is invalid.");
+    }
+
+    @Test
+    void create_shouldReturnClientExceptionWhenCANameContainsSpecialCharacters() {
+        // given
+        when(envsForClient.getCaName()).thenReturn(CA_NAME_INVALID);
+        when(envsForClient.getOutputPath()).thenReturn(OUTPUT_PATH_VALID);
+        when(envsForClient.getRequestTimeOut()).thenReturn(TIME_OUT_VALID);
+        when(envsForClient.getUrlToCertService()).thenReturn(URL_TO_CERT_SERVICE_VALID);
+
+        // when
+        ClientConfigurationFactory configurationFactory = new ClientConfigurationFactory(envsForClient);
+
+        // when/then
+        assertThatExceptionOfType(ClientConfigurationException.class)
+                .isThrownBy(configurationFactory::create)
+                .withMessageContaining(ClientConfigurationEnvs.CA_NAME + " is invalid.");
+    }
+
+    @Test
+    void create_shouldReturnClientExceptionWhenOutputPathContainsSpecialCharacters() {
+        // given
+        when(envsForClient.getCaName()).thenReturn(CA_NAME_VALID);
+        when(envsForClient.getOutputPath()).thenReturn(OUTPUT_PATH_INVALID);
+        when(envsForClient.getRequestTimeOut()).thenReturn(TIME_OUT_VALID);
+        when(envsForClient.getUrlToCertService()).thenReturn(URL_TO_CERT_SERVICE_VALID);
+
+        // when
+        ClientConfigurationFactory configurationFactory = new ClientConfigurationFactory(envsForClient);
+
+        // when/then
+        assertThatExceptionOfType(ClientConfigurationException.class)
+                .isThrownBy(configurationFactory::create)
+                .withMessageContaining(ClientConfigurationEnvs.OUTPUT_PATH + " is invalid.");
+    }
+}
diff --git a/certServiceClient/src/test/java/org/onap/aaf/certservice/client/model/CsrConfigurationFactoryTest.java b/certServiceClient/src/test/java/org/onap/aaf/certservice/client/model/CsrConfigurationFactoryTest.java
new file mode 100644
index 00000000..39d44592
--- /dev/null
+++ b/certServiceClient/src/test/java/org/onap/aaf/certservice/client/model/CsrConfigurationFactoryTest.java
@@ -0,0 +1,109 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.aaf.certservice.client.model;
+
+import org.junit.jupiter.api.Test;
+import org.onap.aaf.certservice.client.common.CsrConfigurationEnvs;
+import org.onap.aaf.certservice.client.common.EnvsForCsr;
+import org.onap.aaf.certservice.client.exceptions.CsrConfigurationException;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+public class CsrConfigurationFactoryTest {
+
+    final String COMMON_NAME_VALID = "onap.org";
+    final String SANS_VALID = "test-name";
+    final String COUNTRY_VALID = "US";
+    final String LOCATION_VALID = "San-Francisco";
+    final String ORGANIZATION_VALID =  "Linux-Foundation";
+    final String ORGANIZATION_UNIT_VALID = "ONAP";
+    final String STATE_VALID = "California";
+    final String COMMON_NAME_INVALID = "onap.org*&";
+
+    private EnvsForCsr envsForCsr = mock(EnvsForCsr.class);
+
+
+    @Test
+    void create_shouldReturnSuccessWhenAllVariablesAreSetAndValid() {
+        // given
+        when(envsForCsr.getCommonName()).thenReturn(COMMON_NAME_VALID);
+        when(envsForCsr.getSubjectAlternativesName()).thenReturn(SANS_VALID);
+        when(envsForCsr.getCountry()).thenReturn(COUNTRY_VALID);
+        when(envsForCsr.getLocation()).thenReturn(LOCATION_VALID);
+        when(envsForCsr.getOrganization()).thenReturn(ORGANIZATION_VALID);
+        when(envsForCsr.getOrganizationUnit()).thenReturn(ORGANIZATION_UNIT_VALID);
+        when(envsForCsr.getState()).thenReturn(STATE_VALID);
+
+        // when
+        CsrConfiguration configuration = new CsrConfigurationFactory(envsForCsr).create();
+
+        // then
+        assertThat(configuration.getCommonName()).isEqualTo(COMMON_NAME_VALID);
+        assertThat(configuration.getSubjectAlternativeNames()).isEqualTo(SANS_VALID);
+        assertThat(configuration.getCountry()).isEqualTo(COUNTRY_VALID);
+        assertThat(configuration.getLocation()).isEqualTo(LOCATION_VALID);
+        assertThat(configuration.getOrganization()).isEqualTo(ORGANIZATION_VALID);
+        assertThat(configuration.getOrganizationUnit()).isEqualTo(ORGANIZATION_UNIT_VALID);
+        assertThat(configuration.getState()).isEqualTo(STATE_VALID);
+    }
+
+    @Test
+    void create_shouldReturnSuccessWhenNotRequiredVariablesAreNotSet() {
+        // given
+        when(envsForCsr.getCommonName()).thenReturn(COMMON_NAME_VALID);
+        when(envsForCsr.getState()).thenReturn(STATE_VALID);
+        when(envsForCsr.getCountry()).thenReturn(COUNTRY_VALID);
+        when(envsForCsr.getOrganization()).thenReturn(ORGANIZATION_VALID);
+
+        // when
+        CsrConfiguration configuration = new CsrConfigurationFactory(envsForCsr).create();
+
+        // then
+        assertThat(configuration.getCommonName()).isEqualTo(COMMON_NAME_VALID);
+        assertThat(configuration.getCountry()).isEqualTo(COUNTRY_VALID);
+        assertThat(configuration.getOrganization()).isEqualTo(ORGANIZATION_VALID);
+        assertThat(configuration.getState()).isEqualTo(STATE_VALID);
+    }
+
+
+    @Test
+    void create_shouldReturnCsrConfigurationExceptionWhenCommonNameContainsSpecialCharacters() {
+        // given
+        when(envsForCsr.getCommonName()).thenReturn(COMMON_NAME_INVALID);
+        when(envsForCsr.getSubjectAlternativesName()).thenReturn(SANS_VALID);
+        when(envsForCsr.getCountry()).thenReturn(COUNTRY_VALID);
+        when(envsForCsr.getLocation()).thenReturn(LOCATION_VALID);
+        when(envsForCsr.getOrganization()).thenReturn(ORGANIZATION_VALID);
+        when(envsForCsr.getOrganizationUnit()).thenReturn(ORGANIZATION_UNIT_VALID);
+        when(envsForCsr.getState()).thenReturn(SANS_VALID);
+
+        // when
+        CsrConfigurationFactory configurationFactory = new CsrConfigurationFactory(envsForCsr);
+
+        // when/then
+        assertThatExceptionOfType(CsrConfigurationException.class)
+                .isThrownBy(configurationFactory::create)
+                .withMessageContaining(CsrConfigurationEnvs.COMMON_NAME + " is invalid.");
+    }
+}