Move cps files to root dir

Issue-ID: CIMAN-33
Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>

5 files changed, 395 insertions, 0 deletions

diff --git a/cps-rest/src/main/java/org/onap/cps/Application.java b/cps-rest/src/main/java/org/onap/cps/Application.java
new file mode 100644
index 0000000000..9f6c2edce9
--- /dev/null
+++ b/cps-rest/src/main/java/org/onap/cps/Application.java
@@ -0,0 +1,32 @@
+/*-

+ * ============LICENSE_START=======================================================

+ *  Copyright (C) 2020 Nordix Foundation. 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.cps;

+

+import org.springframework.boot.SpringApplication;

+import org.springframework.boot.autoconfigure.SpringBootApplication;

+

+@SpringBootApplication

+public class Application {

+

+    public static void main(String[] args) {

+        SpringApplication.run(Application.class, args);

+    }

+}
\ No newline at end of file
diff --git a/cps-rest/src/main/java/org/onap/cps/rest/controller/CpsRestController.java b/cps-rest/src/main/java/org/onap/cps/rest/controller/CpsRestController.java
new file mode 100644
index 0000000000..90c287cdaf
--- /dev/null
+++ b/cps-rest/src/main/java/org/onap/cps/rest/controller/CpsRestController.java
@@ -0,0 +1,182 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2020 Nordix Foundation
+ *  Modifications Copyright (C) 2020 Bell Canada. 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.cps.rest.controller;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonSyntaxException;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import javax.validation.Valid;
+import org.onap.cps.api.CpService;
+import org.onap.cps.exceptions.CpsException;
+import org.onap.cps.exceptions.CpsValidationException;
+import org.onap.cps.rest.api.CpsRestApi;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
+
+@RestController
+public class CpsRestController implements CpsRestApi {
+
+    @Autowired
+    private CpService cpService;
+
+    @Override
+    public ResponseEntity<Object> createAnchor(@Valid MultipartFile multipartFile, String dataspaceName) {
+        return null;
+    }
+
+    @Override
+    public ResponseEntity<Object> createModules(@Valid MultipartFile multipartFile, String dataspaceName) {
+        final File fileToParse = saveToFile(multipartFile);
+        final SchemaContext schemaContext = cpService.parseAndValidateModel(fileToParse);
+        cpService.storeSchemaContext(schemaContext, dataspaceName);
+        return new ResponseEntity<>("Resource successfully created", HttpStatus.CREATED);
+    }
+
+    @Override
+    public ResponseEntity<Object> createNode(@Valid MultipartFile multipartFile, String dataspaceName) {
+        return null;
+    }
+
+    @Override
+    public ResponseEntity<Object> deleteAnchor(String dataspaceName, String anchorName) {
+        return null;
+    }
+
+    @Override
+    public ResponseEntity<Object> deleteDataspace(String dataspaceName) {
+        return null;
+    }
+
+    @Override
+    public ResponseEntity<Object> getAnchor(String dataspaceName, String anchorName) {
+        return null;
+    }
+
+    @Override
+    public ResponseEntity<Object> getAnchors(String dataspaceName) {
+        return null;
+    }
+
+    @Override
+    public ResponseEntity<Object> getModule(String dataspaceName, @Valid String namespaceName, @Valid String revision) {
+        return null;
+    }
+
+    @Override
+    public ResponseEntity<Object> getNode(@Valid String body, String dataspaceName) {
+        return null;
+    }
+
+    @Override
+    public ResponseEntity<Object> getNodeByDataspaceAndAnchor(@Valid String body, String dataspaceName,
+        String anchorName) {
+        return null;
+    }
+
+    /*
+    Old rest endpoints before contract first approach (Need to be removed).
+     */
+
+    /**
+     * Upload a JSON file.
+     *
+     * @param uploadedFile the JSON Multipart file.
+     * @return a ResponseEntity.
+     */
+    @PostMapping("/upload-yang-json-data-file")
+    public final ResponseEntity<String> uploadYangJsonDataFile(
+        @RequestParam("file") MultipartFile uploadedFile) {
+        validateJsonStructure(uploadedFile);
+        final int persistenceObjectId = cpService.storeJsonStructure(getJsonString(uploadedFile));
+        return new ResponseEntity<String>(
+            "Object stored in CPS with identity: " + persistenceObjectId, HttpStatus.OK);
+
+    }
+
+    /**
+     * Read a JSON Object using the object identifier.
+     *
+     * @param jsonObjectId the JSON object identifier.
+     * @return a ResponseEntity.
+     */
+    @GetMapping("/json-object/{id}")
+    public final ResponseEntity<String> getJsonObjectById(
+        @PathVariable("id") final int jsonObjectId) {
+        return new ResponseEntity<String>(cpService.getJsonById(jsonObjectId), HttpStatus.OK);
+    }
+
+    /**
+     * Delete a JSON Object using the object identifier.
+     *
+     * @param jsonObjectId the JSON object identifier.
+     * @return a ResponseEntity.
+     */
+    @DeleteMapping("json-object/{id}")
+    public final ResponseEntity<Object> deleteJsonObjectById(
+        @PathVariable("id") final int jsonObjectId) {
+        cpService.deleteJsonById(jsonObjectId);
+        return new ResponseEntity<>(HttpStatus.NO_CONTENT);
+    }
+
+    private static void validateJsonStructure(final MultipartFile multipartFile) {
+        try {
+            final Gson gson = new Gson();
+            gson.fromJson(getJsonString(multipartFile), Object.class);
+        } catch (JsonSyntaxException e) {
+            throw new CpsValidationException("Not a valid JSON file.", e);
+        }
+    }
+
+    private static File saveToFile(final MultipartFile multipartFile) {
+        try {
+            final File file = File.createTempFile("tempFile", ".yang");
+            file.deleteOnExit();
+
+            try (OutputStream outputStream = new FileOutputStream(file)) {
+                outputStream.write(multipartFile.getBytes());
+            }
+            return file;
+
+        } catch (IOException e) {
+            throw new CpsException(e);
+        }
+    }
+
+    private static String getJsonString(final MultipartFile multipartFile) {
+        try {
+            return new String(multipartFile.getBytes());
+        } catch (IOException e) {
+            throw new CpsException(e);
+        }
+    }
+}
\ No newline at end of file
diff --git a/cps-rest/src/main/java/org/onap/cps/rest/exceptions/CpsRestExceptionHandler.java b/cps-rest/src/main/java/org/onap/cps/rest/exceptions/CpsRestExceptionHandler.java
new file mode 100644
index 0000000000..9cf4935d4e
--- /dev/null
+++ b/cps-rest/src/main/java/org/onap/cps/rest/exceptions/CpsRestExceptionHandler.java
@@ -0,0 +1,98 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2020 Pantheon.tech
+ *  ================================================================================
+ *  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.cps.rest.exceptions;
+
+import org.apache.commons.lang3.exception.ExceptionUtils;
+import org.hibernate.exception.ConstraintViolationException;
+import org.onap.cps.exceptions.CpsException;
+import org.onap.cps.exceptions.CpsNotFoundException;
+import org.onap.cps.exceptions.CpsValidationException;
+import org.onap.cps.rest.controller.CpsRestController;
+import org.springframework.dao.EmptyResultDataAccessException;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+@RestControllerAdvice(assignableTypes = {CpsRestController.class})
+public class CpsRestExceptionHandler {
+
+    /**
+     * Default exception handler.
+     *
+     * @param exception the exception to handle
+     * @return response with response code 500.
+     */
+    @ExceptionHandler
+    public ResponseEntity<Object> handleInternalErrorException(Exception exception) {
+        return buildErrorResponse(HttpStatus.INTERNAL_SERVER_ERROR, exception);
+    }
+
+    /*
+        TODO: Rid off extra dependencies.
+
+        Generic exception handler and CpsException (incl. children) are the only
+        exceptions to be handled here. All the other exceptions which require a special
+        treatment should be rethrown as CpsException in the place of occurrence ->
+        e.g. persistence exceptions are to be handled in cps-ri module.
+     */
+
+    @ExceptionHandler({ConstraintViolationException.class})
+    public ResponseEntity<Object> handleBadRequestException(Exception exception) {
+        return buildErrorResponse(HttpStatus.BAD_REQUEST, exception);
+    }
+
+    @ExceptionHandler({EmptyResultDataAccessException.class})
+    public ResponseEntity<Object> handleNotFoundException(Exception exception) {
+        return buildErrorResponse(HttpStatus.NOT_FOUND, exception);
+    }
+
+    @ExceptionHandler({CpsException.class})
+    public ResponseEntity<Object> handleCpsException(CpsException exception) {
+        return buildErrorResponse(HttpStatus.INTERNAL_SERVER_ERROR, exception.getMessage(), extractDetails(exception));
+    }
+
+    @ExceptionHandler({CpsValidationException.class})
+    public ResponseEntity<Object> handleCpsValidationException(CpsException exception) {
+        return buildErrorResponse(HttpStatus.BAD_REQUEST, exception.getMessage(), extractDetails(exception));
+    }
+
+    @ExceptionHandler({CpsNotFoundException.class})
+    public ResponseEntity<Object> handleCpsNotFoundException(CpsException exception) {
+        return buildErrorResponse(HttpStatus.NOT_FOUND, exception.getMessage(), extractDetails(exception));
+    }
+
+    private static ResponseEntity<Object> buildErrorResponse(HttpStatus status, Exception exception) {
+        return buildErrorResponse(status, exception.getMessage(), ExceptionUtils.getStackTrace(exception));
+    }
+
+    private static ResponseEntity<Object> buildErrorResponse(HttpStatus status, String message, String details) {
+        return new ResponseEntity<>(
+            ErrorMessage.builder().status(status.toString()).message(message).details(details).build(),
+            status
+        );
+    }
+
+    private static String extractDetails(CpsException exception) {
+        return exception.getCause() == null
+            ? exception.getDetails()
+            : ExceptionUtils.getStackTrace(exception.getCause());
+    }
+}
diff --git a/cps-rest/src/main/java/org/onap/cps/rest/exceptions/ErrorMessage.java b/cps-rest/src/main/java/org/onap/cps/rest/exceptions/ErrorMessage.java
new file mode 100644
index 0000000000..1f2a0b7860
--- /dev/null
+++ b/cps-rest/src/main/java/org/onap/cps/rest/exceptions/ErrorMessage.java
@@ -0,0 +1,37 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2020 Pantheon.tech
+ *  ================================================================================
+ *  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.cps.rest.exceptions;
+
+import lombok.Builder;
+import lombok.Data;
+
+/**
+ * Temporary POJO class used as error response model.
+ * TODO: To replace with model class generated from Open API specification.
+ *
+ */
+@Builder
+@Data
+public class ErrorMessage {
+    private String status;
+    private String message;
+    private String details;
+}
+
diff --git a/cps-rest/src/main/java/org/onap/cps/swagger/config/SpringFoxConfig.java b/cps-rest/src/main/java/org/onap/cps/swagger/config/SpringFoxConfig.java
new file mode 100644
index 0000000000..73e179511b
--- /dev/null
+++ b/cps-rest/src/main/java/org/onap/cps/swagger/config/SpringFoxConfig.java
@@ -0,0 +1,46 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2020 Bell Canada. 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.cps.swagger.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import springfox.documentation.builders.PathSelectors;
+import springfox.documentation.builders.RequestHandlerSelectors;
+import springfox.documentation.spi.DocumentationType;
+import springfox.documentation.spring.web.plugins.Docket;
+
+/**
+ * Swagger configuration.
+ */
+@Configuration
+public class SpringFoxConfig {
+
+    /**
+     * Define api configuration.
+     */
+    @Bean
+    public Docket api() {
+        return new Docket(DocumentationType.OAS_30)
+                       .select()
+                       .apis(RequestHandlerSelectors.any())
+                       .paths(PathSelectors.any())
+                       .build();
+    }
+}