diff options
Diffstat (limited to 'mso-api-handlers/mso-api-handler-common/src/main/java/org/openecomp/mso/apihandler/common/XMLValidator.java')
-rw-r--r-- | mso-api-handlers/mso-api-handler-common/src/main/java/org/openecomp/mso/apihandler/common/XMLValidator.java | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/mso-api-handlers/mso-api-handler-common/src/main/java/org/openecomp/mso/apihandler/common/XMLValidator.java b/mso-api-handlers/mso-api-handler-common/src/main/java/org/openecomp/mso/apihandler/common/XMLValidator.java new file mode 100644 index 0000000000..bd73b226a2 --- /dev/null +++ b/mso-api-handlers/mso-api-handler-common/src/main/java/org/openecomp/mso/apihandler/common/XMLValidator.java @@ -0,0 +1,103 @@ +/*- + * ============LICENSE_START======================================================= + * OPENECOMP - MSO + * ================================================================================ + * 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.mso.apihandler.common; + + +import java.io.FileInputStream; +import java.io.IOException; + +import javax.xml.XMLConstants; +import javax.xml.transform.Source; +import javax.xml.transform.stream.StreamSource; +import javax.xml.validation.Schema; +import javax.xml.validation.SchemaFactory; +import javax.xml.validation.Validator; + +import org.apache.commons.io.IOUtils; +import org.xml.sax.SAXException; + +import org.openecomp.mso.logger.MessageEnum; +import org.openecomp.mso.logger.MsoAlarmLogger; +import org.openecomp.mso.logger.MsoLogger; + +public class XMLValidator { + + private static String XSDS_PATH; + + static { + String prefixMsoPropertiesPath = System.getProperty ("mso.config.path"); + if (prefixMsoPropertiesPath == null) { + prefixMsoPropertiesPath = ""; + } + XSDS_PATH = prefixMsoPropertiesPath + "xsds/"; + } + + private String stringXsd; + private String errorMsg = null; + private SchemaFactory factory; + private Schema schema; + + private static MsoLogger msoLogger = MsoLogger.getMsoLogger (MsoLogger.Catalog.APIH); + private static MsoAlarmLogger alarmLogger = new MsoAlarmLogger (); + + public XMLValidator (String xsdFile) { + + try (FileInputStream xsdStream = new FileInputStream (XSDS_PATH + xsdFile)) { + + stringXsd = IOUtils.toString (xsdStream); + + factory = SchemaFactory.newInstance (XMLConstants.W3C_XML_SCHEMA_NS_URI); + factory.setResourceResolver ((new PathResourceResolver (XSDS_PATH))); + factory.setFeature (XMLConstants.FEATURE_SECURE_PROCESSING, true); + + String quotedXsd = stringXsd.replaceAll (""", "\""); + Source src = new StreamSource (new java.io.StringReader (quotedXsd)); + schema = factory.newSchema (src); + + } catch (IOException | SAXException e) { + msoLogger.debug ("Cannot open file " + XSDS_PATH + xsdFile, e); + errorMsg = "ErrorDetails: xsd file " + xsdFile + "could not be opened - " + e.getMessage (); + } + } + + // Returns null when XML valid, otherwise returns error details. + public String isXmlValid (String stringXml) { + try { + if (errorMsg != null && !errorMsg.isEmpty ()) { + return errorMsg; + } + Source src2 = new StreamSource (new java.io.StringReader (stringXml)); + Validator validator = schema.newValidator (); + validator.validate (src2); + + } catch (IOException | SAXException e) { + msoLogger.debug ("Exception: ", e); + return ("ErrorDetails: " + e.getMessage ()); + + } catch (Exception e) { + msoLogger.error (MessageEnum.APIH_CANNOT_READ_SCHEMA, "", "", MsoLogger.ErrorCode.SchemaError, "APIH cannot read schema file", e); + alarmLogger.sendAlarm ("MsoConfigurationError", MsoAlarmLogger.CRITICAL, "Unable to read the schema file"); + return "ErrorDetails: " + "Unable to read the schema file"; + } + + return null; + } +} |