1 files changed, 112 insertions, 0 deletions
diff --git a/sdnr/wt/devicemanager-onap/onf14/provider/src/test/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/onf14/util/TestYangParserUtil.java b/sdnr/wt/devicemanager-onap/onf14/provider/src/test/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/onf14/util/TestYangParserUtil.java
new file mode 100644
index 000000000..a0cfa6760
--- /dev/null
+++ b/sdnr/wt/devicemanager-onap/onf14/provider/src/test/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/onf14/util/TestYangParserUtil.java
@@ -0,0 +1,112 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP : ccsdk features
+ * ================================================================================
+ * Copyright (C) 2022 highstreet technologies GmbH Intellectual Property.
+ * 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.ccsdk.features.sdnr.wt.devicemanager.onf14.util;
+
+import java.io.File;
+import java.io.FileFilter;
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.ServiceLoader;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import org.eclipse.jdt.annotation.NonNull;
+import org.opendaylight.yangtools.yang.common.QName;
+import org.opendaylight.yangtools.yang.common.YangConstants;
+import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
+import org.opendaylight.yangtools.yang.model.repo.api.SchemaSourceRepresentation;
+import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
+import org.opendaylight.yangtools.yang.parser.api.YangParser;
+import org.opendaylight.yangtools.yang.parser.api.YangParserConfiguration;
+import org.opendaylight.yangtools.yang.parser.api.YangParserException;
+import org.opendaylight.yangtools.yang.parser.api.YangParserFactory;
+import org.opendaylight.yangtools.yang.parser.api.YangSyntaxErrorException;
+
+public final class TestYangParserUtil {
+
+	private static final FileFilter YANG_FILE_FILTER = file -> {
+		final String name = file.getName();
+		return name.endsWith(YangConstants.RFC6020_YANG_FILE_EXTENSION) && file.isFile();
+	};
+
+	private static final @NonNull YangParserFactory PARSER_FACTORY;
+
+	static {
+		final Iterator<@NonNull YangParserFactory> it = ServiceLoader.load(YangParserFactory.class).iterator();
+		if (!it.hasNext()) {
+			throw new IllegalStateException("No YangParserFactory found");
+		}
+		PARSER_FACTORY = it.next();
+	}
+
+	public static EffectiveModelContext parseYangFiles(final YangParserConfiguration config, final File... files) {
+		return parseYangFiles(config, Arrays.asList(files));
+	}
+
+	public static EffectiveModelContext parseYangFiles(final YangParserConfiguration config,
+			final Collection<File> files) {
+		return parseSources(config, files.stream().map(YangTextSchemaSource::forFile).collect(Collectors.toList()));
+	}
+
+	public static EffectiveModelContext parseYangResourceDirectory(final String resourcePath) {
+		return parseYangResourceDirectory(resourcePath, YangParserConfiguration.DEFAULT);
+	}
+
+	public static EffectiveModelContext parseYangResourceDirectory(final String resourcePath,
+			final YangParserConfiguration config) {
+		final URI directoryPath;
+		try {
+			directoryPath = TestYangParserUtil.class.getResource(resourcePath).toURI();
+		} catch (URISyntaxException e) {
+			throw new IllegalArgumentException("Failed to open resource " + resourcePath, e);
+		}
+		return parseYangFiles(config, new File(directoryPath).listFiles(YANG_FILE_FILTER));
+	}
+
+	public static EffectiveModelContext parseYangSources(final YangParserConfiguration config,
+			final Set<QName> supportedFeatures, final YangTextSchemaSource... sources) {
+		return parseSources(config, Arrays.asList(sources));
+	}
+
+	public static EffectiveModelContext parseSources(final YangParserConfiguration config,
+			final Collection<? extends SchemaSourceRepresentation> sources) {
+		final YangParser parser = PARSER_FACTORY.createParser(config);
+
+		try {
+			parser.addSources(sources);
+		} catch (YangSyntaxErrorException e) {
+			throw new IllegalArgumentException("Malformed source", e);
+		} catch (IOException e) {
+			throw new IllegalArgumentException("Failed to read a source", e);
+		}
+
+		try {
+			return parser.buildEffectiveModel();
+		} catch (YangParserException e) {
+			throw new IllegalStateException("Failed to assemble SchemaContext", e);
+		}
+	}
+}