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());
}
}
}
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);
}
}
}
