1 files changed, 97 insertions, 0 deletions
diff --git a/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-impl/src/main/java/org/openecomp/sdc/validation/impl/validators/YamlValidator.java b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-impl/src/main/java/org/openecomp/sdc/validation/impl/validators/YamlValidator.java
new file mode 100644
index 0000000000..4d05b2b066
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-impl/src/main/java/org/openecomp/sdc/validation/impl/validators/YamlValidator.java
@@ -0,0 +1,97 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T 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.openecomp.sdc.validation.impl.validators;
+
+import org.openecomp.core.utilities.yaml.YamlUtil;
+import org.openecomp.core.validation.errors.ErrorMessagesFormatBuilder;
+import org.openecomp.core.validation.errors.Messages;
+import org.openecomp.core.validation.interfaces.Validator;
+import org.openecomp.core.validation.types.GlobalValidationContext;
+import org.openecomp.sdc.datatypes.error.ErrorLevel;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.yaml.snakeyaml.error.MarkedYAMLException;
+import org.yaml.snakeyaml.parser.ParserException;
+
+import java.io.InputStream;
+import java.util.Collection;
+import java.util.Map;
+
+public class YamlValidator implements Validator {
+
+  private static final Logger logger = LoggerFactory.getLogger(YamlValidator.class);
+
+  @Override
+  public void validate(GlobalValidationContext globalContext) {
+
+    Collection<String> files = globalContext.files(
+        (fileName, globalValidationContext) -> (fileName.endsWith(".yaml")
+            || fileName.endsWith(".yml") || fileName.endsWith(".env")));
+
+    files.stream().forEach(fileName -> validate(fileName, globalContext));
+  }
+
+  private void validate(String fileName, GlobalValidationContext globalContext) {
+    InputStream rowContent = globalContext.getFileContent(fileName);
+    if (rowContent == null) {
+      globalContext.addMessage(fileName, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
+          .getErrorWithParameters(Messages.INVALID_YAML_FORMAT_REASON.getErrorMessage(),
+              Messages.EMPTY_YAML_FILE.getErrorMessage()));
+      return; /* no need to continue validation */
+    }
+
+    try {
+      convert(rowContent, Map.class);
+    } catch (Exception exception) {
+
+      globalContext.addMessage(fileName, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
+          .getErrorWithParameters(Messages.INVALID_YAML_FORMAT_REASON.getErrorMessage(),
+              getParserExceptionReason(exception)));
+      logger.error("Exception in yaml parser. message:" + exception.getMessage());
+    }
+  }
+
+  private String getParserExceptionReason(Exception exception) {
+    String reason = null;
+
+    if (exception.getCause() instanceof MarkedYAMLException) {
+      if (exception.getCause() != null) {
+        if (exception.getCause().getCause() instanceof ParserException) {
+          reason = exception.getCause().getCause().getMessage();
+        } else {
+          reason = exception.getCause().getMessage();
+        }
+      }
+    } else if (exception instanceof MarkedYAMLException) {
+
+      reason = exception.getMessage();
+
+    } else {
+      reason = Messages.GENERAL_YAML_PARSER_ERROR.getErrorMessage();
+    }
+    return reason;
+  }
+
+
+  private <T> T convert(InputStream content, Class<T> type) {
+    return new YamlUtil().yamlToObject(content, type);
+  }
+}