sxp-integration/sxp-ise-adapter/src/main/java/org/opendaylight/groupbasedpolicy/sxp_ise_adapter/impl/util/IseReplyUtil.java

   1 /*
   2  * Copyright (c) 2016 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.groupbasedpolicy.sxp_ise_adapter.impl.util;
  10
  11 import com.sun.jersey.api.client.ClientResponse;
  12 import com.sun.jersey.api.client.WebResource;
  13 import java.io.StringReader;
  14 import java.util.Iterator;
  15 import javax.xml.XMLConstants;
  16 import javax.xml.namespace.NamespaceContext;
  17 import javax.xml.xpath.XPath;
  18 import javax.xml.xpath.XPathFactory;
  19 import org.xml.sax.InputSource;
  20
  21 /**
  22  * Purpose: provide common functionality upon ise reply message
  23  */
  24 public class IseReplyUtil {
  25
  26     public static final String EXPRESSION_SGT_ALL_LINK_HREFS = "/ns3:searchResult/ns3:resources/ns5:resource/link/@href";
  27     public static final String EXPRESSION_SGT_DETAIL = "./ns4:sgt";
  28     public static final String EXPRESSION_SGT_NAME_ATTR = "./@name";
  29     public static final String EXPRESSION_SGT_VALUE = "./value/text()";
  30
  31     private IseReplyUtil() {
  32         throw new IllegalAccessError("util class - no instances supported");
  33     }
  34
  35
  36     public static String deliverResponse(final WebResource.Builder requestBuilder) {
  37         return requestBuilder.get(ClientResponse.class).getEntity(String.class);
  38     }
  39
  40     /**
  41      * @return initiated xpath with ise namespace context injected
  42      */
  43     public static XPath setupXpath() {
  44         final NamespaceContext nsContext = new NamespaceContext() {
  45             public String getNamespaceURI(String prefix) {
  46                 final String outcome;
  47                 if (prefix == null) {
  48                     throw new NullPointerException("Null prefix");
  49                 }
  50
  51                 if ("ns5".equals(prefix)) {
  52                     outcome = "ers.ise.cisco.com";
  53                 } else if ("ns3".equals(prefix)) {
  54                     outcome = "v2.ers.ise.cisco.com";
  55                 } else if ("ns4".equals(prefix)) {
  56                     outcome = "trustsec.ers.ise.cisco.com";
  57                 } else {
  58                     outcome = XMLConstants.NULL_NS_URI;
  59                 }
  60                 return outcome;
  61             }
  62
  63             // This method isn't necessary for XPath processing.
  64             public String getPrefix(String uri) {
  65                 throw new UnsupportedOperationException();
  66             }
  67
  68             // This method isn't necessary for XPath processing either.
  69             public Iterator getPrefixes(String uri) {
  70                 throw new UnsupportedOperationException();
  71             }
  72         };
  73
  74         XPath xpath = XPathFactory.newInstance().newXPath();
  75         xpath.setNamespaceContext(nsContext);
  76         return xpath;
  77     }
  78
  79     public static InputSource createInputSource(final String rawSgtDetail) {
  80         return new InputSource(new StringReader(rawSgtDetail));
  81     }
  82 }