+/*
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2020 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.cps.api.impl;
+
+
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.Iterator;
+import java.util.ServiceLoader;
+import org.onap.cps.api.CPService;
+import org.onap.cps.spi.ModelPersistencyService;
+import org.opendaylight.yangtools.yang.model.api.Module;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import org.opendaylight.yangtools.yang.model.parser.api.YangParser;
+import org.opendaylight.yangtools.yang.model.parser.api.YangParserException;
+import org.opendaylight.yangtools.yang.model.parser.api.YangParserFactory;
+import org.opendaylight.yangtools.yang.model.repo.api.StatementParserMode;
+import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component
+public class CPServiceImpl implements CPService {
+
+ private final static Logger LOGGER = LoggerFactory.getLogger(CPServiceImpl.class);
+
+ private static final YangParserFactory PARSER_FACTORY;
+
+ static {
+ final Iterator<YangParserFactory> it =
+ ServiceLoader.load(YangParserFactory.class).iterator();
+ if (!it.hasNext()) {
+ throw new IllegalStateException("No YangParserFactory found");
+ }
+ PARSER_FACTORY = it.next();
+ }
+
+ @Autowired
+ private ModelPersistencyService modelPersistencyService;
+
+ @Override
+ public SchemaContext parseAndValidateModel(final String yangModelContent)
+ throws IOException, YangParserException {
+ final File tempFile = File.createTempFile("yang", ".yang");
+ try (BufferedWriter writer = new BufferedWriter(new FileWriter(tempFile))) {
+ writer.write(yangModelContent);
+ } catch (IOException e) {
+ LOGGER.error("Unable to write to temporary file {}", e.getMessage());
+ }
+ return parseAndValidateModel(tempFile);
+ }
+
+ @Override
+ public SchemaContext parseAndValidateModel(final File yangModelFile) throws IOException, YangParserException {
+ final YangTextSchemaSource yangTextSchemaSource = YangTextSchemaSource.forFile(yangModelFile);
+ final YangParser yangParser = PARSER_FACTORY.createParser(StatementParserMode.DEFAULT_MODE);
+ yangParser.addSource(yangTextSchemaSource);
+ return yangParser.buildEffectiveModel();
+ }
+
+ @Override
+ public void storeSchemaContext(final SchemaContext schemaContext) {
+ for (final Module module : schemaContext.getModules()) {
+ modelPersistencyService.storeModule(module.getName(), module.toString(),
+ module.getRevision().toString());
+ }
+ }
+}