opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/xml/XmlNetconfValidator.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.netconf.util.xml;
  10
  11 import com.google.common.base.Preconditions;
  12 import java.io.IOException;
  13 import java.io.InputStream;
  14 import javax.xml.transform.Source;
  15 import javax.xml.transform.dom.DOMSource;
  16 import javax.xml.validation.Schema;
  17 import javax.xml.validation.Validator;
  18 import org.opendaylight.controller.config.util.xml.XmlUtil;
  19 import org.w3c.dom.Document;
  20 import org.xml.sax.SAXException;
  21
  22 public final class XmlNetconfValidator {
  23
  24     private static final Schema SCHEMA;
  25
  26     private XmlNetconfValidator() {}
  27
  28     static {
  29         final InputStream xmlSchema = XmlNetconfValidator.class.getResourceAsStream("/xml.xsd");
  30         Preconditions.checkNotNull(xmlSchema, "Cannot find xml.xsd");
  31
  32         final InputStream rfc4714Schema = XmlNetconfValidator.class.getResourceAsStream("/rfc4741.xsd");
  33         Preconditions.checkNotNull(rfc4714Schema, "Cannot find rfc4741.xsd");
  34         SCHEMA = XmlUtil.loadSchema(xmlSchema, rfc4714Schema);
  35     }
  36
  37     public static void validate(Document inputDocument) throws SAXException, IOException {
  38         final Validator validator = SCHEMA.newValidator();
  39         final Source source = new DOMSource(inputDocument);
  40         validator.validate(source);
  41     }
  42 }