private void setAttributes(
     JrdsElement probeNode, Object o, Map<String, PropertyDescriptor> beans, Object... context)
     throws IllegalArgumentException, InvocationTargetException {
   // Resolve the beans
   for (JrdsElement attrNode : probeNode.getChildElementsByName("attr")) {
     String name = attrNode.getAttribute("name");
     PropertyDescriptor bean = beans.get(name);
     if (bean == null) {
       logger.error("Unknonw bean " + name);
       continue;
     }
     String textValue = Util.parseTemplate(attrNode.getTextContent(), context);
     logger.trace(Util.delayedFormatString("Fond attribute %s with value %s", name, textValue));
     try {
       Constructor<?> c = bean.getPropertyType().getConstructor(String.class);
       Object value = c.newInstance(textValue);
       bean.getWriteMethod().invoke(o, value);
     } catch (IllegalArgumentException e) {
       throw new InvocationTargetException(e, HostBuilder.class.getName());
     } catch (SecurityException e) {
       throw new InvocationTargetException(e, HostBuilder.class.getName());
     } catch (InstantiationException e) {
       throw new InvocationTargetException(e, HostBuilder.class.getName());
     } catch (IllegalAccessException e) {
       throw new InvocationTargetException(e, HostBuilder.class.getName());
     } catch (InvocationTargetException e) {
       throw new InvocationTargetException(e, HostBuilder.class.getName());
     } catch (NoSuchMethodException e) {
       throw new InvocationTargetException(e, HostBuilder.class.getName());
     }
   }
 }
Exemple #2
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 public Filter makeFilter(JrdsDocument n)
     throws SecurityException, IllegalArgumentException, NoSuchMethodException,
         IllegalAccessException, InvocationTargetException, InstantiationException {
   JrdsElement root = n.getRootElement();
   JrdsElement name = root.getElementbyName("name");
   if (name == null) return null;
   FilterXml f = new FilterXml(name.getTextContent());
   setMethod(root.getChildElementsByName("path"), f, "addPath", String.class);
   setMethod(root.getChildElementsByName("tag"), f, "addTag", String.class);
   setMethod(root.getChildElementsByName("qualifiedname"), f, "addGraph", String.class);
   doACL(f, n, root);
   logger.trace(Util.delayedFormatString("Filter loaded: %s", f.getName()));
   return f;
 }
  /**
   * Enumerate the connections found in an XML node
   *
   * @param domNode a node to parse
   * @param host
   * @return
   */
  Set<ConnectionInfo> makeConnexion(JrdsElement domNode, Object parent) {
    Set<ConnectionInfo> connectionSet = new HashSet<ConnectionInfo>();

    // Check for the old SNMP connection node
    ConnectionInfo cnxSnmp = parseSnmp(domNode);
    if (cnxSnmp != null) connectionSet.add(cnxSnmp);

    for (JrdsElement cnxNode : domNode.getChildElementsByName("connection")) {
      String type = cnxNode.getAttribute("type");
      if (type == null) {
        logger.error("No type declared for a connection");
        continue;
      }
      String name = cnxNode.getAttribute("name");

      try {
        // Load the class for the connection
        @SuppressWarnings("unchecked")
        Class<? extends Connection<?>> connectionClass =
            (Class<? extends Connection<?>>) classLoader.loadClass(type);

        // Build the arguments vector for the connection
        List<Object> args = ArgFactory.makeArgs(cnxNode);

        // Resolve the bean for the connection
        Map<String, String> attrs = new HashMap<String, String>();
        for (JrdsElement attrNode : cnxNode.getChildElementsByName("attr")) {
          String attrName = attrNode.getAttribute("name");
          String textValue = Util.parseTemplate(attrNode.getTextContent(), parent);
          attrs.put(attrName, textValue);
        }
        ConnectionInfo cnx = new ConnectionInfo(connectionClass, name, args, attrs);
        connectionSet.add(cnx);
        logger.debug(Util.delayedFormatString("Added connection %s to node %s", cnx, parent));
      } catch (NoClassDefFoundError ex) {
        logger.warn("Connection class not found: " + type + ": " + ex);
      } catch (ClassCastException ex) {
        logger.warn(type + " is not a connection");
      } catch (LinkageError ex) {
        logger.warn(
            "Incompatible code version during connection creation of type " + type + ": " + ex, ex);
      } catch (Exception ex) {
        logger.warn("Error during connection creation of type " + type + ": " + ex, ex);
      }
    }
    return connectionSet;
  }
  private Map<String, String> makeProperties(JrdsElement n) {
    if (n == null) return Collections.emptyMap();
    JrdsElement propElem = n.getElementbyName("properties");
    if (propElem == null) return Collections.emptyMap();

    Map<String, String> props = new HashMap<String, String>();
    for (JrdsElement propNode : propElem.getChildElementsByName("entry")) {
      String key = propNode.getAttribute("key");
      if (key != null) {
        String value = propNode.getTextContent();
        logger.trace(Util.delayedFormatString("Adding propertie %s=%s", key, value));
        props.put(key, value);
      }
    }
    logger.debug(Util.delayedFormatString("Properties map: %s", props));
    return props;
  }
  private void parseFragment(
      JrdsElement fragment,
      HostInfo host,
      Map<String, Set<String>> collections,
      Map<String, String> properties)
      throws IllegalArgumentException, SecurityException, IllegalAccessException,
          InvocationTargetException, NoSuchMethodException {

    // Find the connection for this host
    // Will the registered latter, in the starter node, one for each timer
    for (ConnectionInfo cnx : makeConnexion(fragment, host)) {
      host.addConnection(cnx);
    }

    for (JrdsElement tagElem : fragment.getChildElementsByName("tag")) {
      try {
        logger.trace(Util.delayedFormatString("adding tag %s to %s", tagElem, host));
        setMethod(tagElem, host, "addTag");
      } catch (InstantiationException e) {
      }
    }

    for (JrdsElement collectionNode : fragment.getChildElementsByName("collection")) {
      String name = collectionNode.getAttribute("name");
      Set<String> set = new HashSet<String>();
      for (JrdsElement e : collectionNode.getChildElementsByName("element")) {
        set.add(e.getTextContent());
      }
      collections.put(name, set);
    }

    for (JrdsElement macroNode : fragment.getChildElementsByName("macro")) {
      String name = macroNode.getAttribute("name");
      Macro m = macrosMap.get(name);
      logger.trace(Util.delayedFormatString("Adding macro %s: %s", name, m));
      if (m != null) {
        Map<String, String> macroProps = makeProperties(macroNode);
        Map<String, String> newProps =
            new HashMap<String, String>(
                (properties != null ? properties.size() : 0) + macroProps.size());
        if (properties != null) newProps.putAll(properties);
        newProps.putAll(macroProps);
        JrdsDocument hostdoc = (JrdsDocument) fragment.getOwnerDocument();
        // Make a copy of the document fragment
        JrdsNode newDf = JrdsNode.build(hostdoc.importNode(m.getDf(), true));
        JrdsElement macrodef = JrdsNode.build(newDf.getFirstChild());
        parseFragment(macrodef, host, collections, newProps);
      } else {
        logger.error("Unknown macro:" + name);
      }
    }

    for (JrdsElement forNode : fragment.getChildElementsByName("for")) {
      Map<String, String> forattr = forNode.attrMap();
      String iterprop = forattr.get("var");
      Collection<String> set = null;
      String name = forNode.attrMap().get("collection");
      if (name != null) set = collections.get(name);
      else if (forattr.containsKey("min")
          && forattr.containsKey("max")
          && forattr.containsKey("step")) {
        int min = Util.parseStringNumber(forattr.get("min"), Integer.MAX_VALUE);
        int max = Util.parseStringNumber(forattr.get("max"), Integer.MIN_VALUE);
        int step = Util.parseStringNumber(forattr.get("step"), Integer.MIN_VALUE);
        if (min > max || step <= 0) {
          logger.error("invalid range from " + min + " to " + max + " with step " + step);
          break;
        }
        set = new ArrayList<String>((max - min) / step + 1);
        for (int i = min; i <= max; i += step) {
          set.add(Integer.toString(i));
        }
      }

      if (set != null) {
        logger.trace(Util.delayedFormatString("for using %s", set));

        for (String i : set) {
          Map<String, String> temp;
          if (properties != null) {
            temp = new HashMap<String, String>(properties.size() + 1);
            temp.putAll(properties);
            temp.put(iterprop, i);
          } else {
            temp = Collections.singletonMap(iterprop, i);
          }
          parseFragment(forNode, host, collections, temp);
        }
      } else {
        logger.error("Invalid host configuration, collection " + name + " not found");
      }
    }

    for (JrdsElement probeNode : fragment.getChildElements()) {
      if (!"probe".equals(probeNode.getNodeName()) && !"rrd".equals(probeNode.getNodeName()))
        continue;
      try {
        makeProbe(probeNode, host, properties);
      } catch (Exception e) {
        logger.error("Probe creation failed for host " + host.getName() + ": ");
        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
        e.printStackTrace(new PrintStream(buffer));
        logger.error(buffer);
      }
    }
  }