// ========================================================================
// Copyright 2004-2005 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// 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.
// ========================================================================
package org.mortbay.xml;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.net.InetAddress;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.UnknownHostException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Properties;
import org.mortbay.component.LifeCycle;
import org.mortbay.log.Log;
import org.mortbay.resource.Resource;
import org.mortbay.util.LazyList;
import org.mortbay.util.Loader;
import org.mortbay.util.TypeUtil;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
/* ------------------------------------------------------------ */
/**
* Configure Objects from XML. This class reads an XML file conforming to the configure.dtd DTD and
* uses it to configure and object by calling set, put or other methods on the object.
*
* @author Greg Wilkins (gregw)
*/
public class XmlConfiguration
{
private static Class[] __primitives = { Boolean.TYPE, Character.TYPE, Byte.TYPE, Short.TYPE,
Integer.TYPE, Long.TYPE, Float.TYPE, Double.TYPE, Void.TYPE};
private static Class[] __primitiveHolders = { Boolean.class, Character.class, Byte.class,
Short.class, Integer.class, Long.class, Float.class, Double.class, Void.class};
private static final Integer ZERO=new Integer(0);
/* ------------------------------------------------------------ */
private static XmlParser __parser;
private XmlParser.Node _config;
private Map _idMap = new HashMap();
private Map _propertyMap = new HashMap();
/* ------------------------------------------------------------ */
private synchronized static void initParser() throws IOException
{
if (__parser != null) return;
__parser = new XmlParser();
URL configURL = XmlConfiguration.class.getClassLoader().getResource("org/mortbay/xml/configure_6_0.dtd");
__parser.redirectEntity("configure.dtd", configURL);
__parser.redirectEntity("configure_1_3.dtd", configURL);
__parser.redirectEntity("http://jetty.mortbay.org/configure.dtd", configURL);
__parser.redirectEntity("-//Mort Bay Consulting//DTD Configure//EN", configURL);
__parser.redirectEntity("http://jetty.mortbay.org/configure_1_3.dtd", configURL);
__parser.redirectEntity("-//Mort Bay Consulting//DTD Configure 1.3//EN", configURL);
__parser.redirectEntity("configure_1_2.dtd", configURL);
__parser.redirectEntity("http://jetty.mortbay.org/configure_1_2.dtd", configURL);
__parser.redirectEntity("-//Mort Bay Consulting//DTD Configure 1.2//EN", configURL);
__parser.redirectEntity("configure_1_1.dtd", configURL);
__parser.redirectEntity("http://jetty.mortbay.org/configure_1_1.dtd", configURL);
__parser.redirectEntity("-//Mort Bay Consulting//DTD Configure 1.1//EN", configURL);
__parser.redirectEntity("configure_1_0.dtd", configURL);
__parser.redirectEntity("http://jetty.mortbay.org/configure_1_0.dtd", configURL);
__parser.redirectEntity("-//Mort Bay Consulting//DTD Configure 1.0//EN", configURL);
}
/* ------------------------------------------------------------ */
/**
* Constructor. Reads the XML configuration file.
*
* @param configuration
*/
public XmlConfiguration(URL configuration) throws SAXException, IOException
{
initParser();
synchronized (__parser)
{
_config = __parser.parse(configuration.toString());
}
}
/* ------------------------------------------------------------ */
/**
* Constructor.
*
* @param configuration String of XML configuration commands excluding the normal XML preamble.
* The String should start with a " <Configure ...." element.
* @exception SAXException
* @exception IOException
*/
public XmlConfiguration(String configuration) throws SAXException, IOException
{
initParser();
configuration = "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n<!DOCTYPE Configure PUBLIC \"-//Mort Bay Consulting//DTD Configure 1.2//EN\" \"http://jetty.mortbay.org/configure_1_2.dtd\">"
+ configuration;
InputSource source = new InputSource(new StringReader(configuration));
synchronized (__parser)
{
_config = __parser.parse(source);
}
}
/* ------------------------------------------------------------ */
/**
* Constructor.
*
* @param configuration An input stream containing a complete e.g. configuration file
* @exception SAXException
* @exception IOException
*/
public XmlConfiguration(InputStream configuration) throws SAXException, IOException
{
initParser();
InputSource source = new InputSource(configuration);
synchronized (__parser)
{
_config = __parser.parse(source);
}
}
/* ------------------------------------------------------------ */
public Map getIdMap()
{
return _idMap;
}
/* ------------------------------------------------------------ */
public void setIdMap(Map map)
{
_idMap=map;
}
/* ------------------------------------------------------------ */
public void setProperties (Map map)
{
_propertyMap = map;
}
/* ------------------------------------------------------------ */
public Map getProperties ()
{
return _propertyMap;
}
/* ------------------------------------------------------------ */
/**
* Configure an object. If the object is of the approprate class, the XML configuration script
* is applied to the object.
*
* @param obj The object to be configured.
* @exception Exception
*/
public void configure(Object obj) throws Exception
{
//Check the class of the object
Class oClass = nodeClass(_config);
if (!oClass.isInstance(obj))
throw new IllegalArgumentException("Object is not of type " + oClass);
configure(obj, _config, 0);
}
/* ------------------------------------------------------------ */
/**
* Configure an object. If the configuration has an ID, an object is looked up
* by ID and it's type check. Otherwise a new object is created.
*
* @return The newly created configured object.
* @exception Exception
*/
public Object configure() throws Exception
{
Class oClass = nodeClass(_config);
String id = _config.getAttribute("id");
Object obj = id==null?null:_idMap.get(id);
if (obj==null && oClass !=null)
obj = oClass.newInstance();
if (oClass!=null && !oClass.isInstance(obj))
throw new ClassCastException(oClass.toString());
configure(obj, _config, 0);
return obj;
}
/* ------------------------------------------------------------ */
private Class nodeClass(XmlParser.Node node) throws ClassNotFoundException
{
String className = node.getAttribute("class");
if (className == null) return null;
return Loader.loadClass(XmlConfiguration.class, className,true);
}
/* ------------------------------------------------------------ */
/*
* Recursive configuration step. This method applies the remaining Set, Put and Call elements to
* the current object. @param obj @param cfg @param i @exception Exception
*/
private void configure(Object obj, XmlParser.Node cfg, int i) throws Exception
{
String id = cfg.getAttribute("id");
if (id!=null)
_idMap.put(id,obj);
for (; i < cfg.size(); i++)
{
Object o = cfg.get(i);
if (o instanceof String) continue;
XmlParser.Node node = (XmlParser.Node) o;
try
{
String tag = node.getTag();
if ("Set".equals(tag))
set(obj, node);
else if ("Put".equals(tag))
put(obj, node);
else if ("Call".equals(tag))
call(obj, node);
else if ("Get".equals(tag))
get(obj, node);
else if ("New".equals(tag))
newObj(obj, node);
else if ("Array".equals(tag))
newArray(obj, node);
else if ("Ref".equals(tag))
refObj(obj, node);
else if ("Property".equals(tag))
propertyObj(obj, node);
else
throw new IllegalStateException("Unknown tag: " + tag);
}
catch (Exception e)
{
Log.warn("Config error at " + node, e.toString());
throw e;
}
}
}
/* ------------------------------------------------------------ */
/*
* Call a set method. This method makes a best effort to find a matching set method. The type of
* the value is used to find a suitable set method by 1. Trying for a trivial type match. 2.
* Looking for a native type match. 3. Trying all correctly named methods for an auto
* conversion. 4. Attempting to construct a suitable value from original value. @param obj
* @param node
*/
private void set(Object obj, XmlParser.Node node) throws Exception
{
String attr = node.getAttribute("name");
String name = "set" + attr.substring(0, 1).toUpperCase() + attr.substring(1);
Object value = value(obj, node);
Object[] arg = { value};
Class oClass = nodeClass(node);
if (oClass != null)
obj = null;
else
oClass = obj.getClass();
Class[] vClass = { Object.class};
if (value != null) vClass[0] = value.getClass();
if (Log.isDebugEnabled())
Log.debug("XML "+(obj!=null?obj.toString():oClass.getName()) + "." + name + "(" + value + ")");
// Try for trivial match
try
{
Method set = oClass.getMethod(name, vClass);
set.invoke(obj, arg);
return;
}
catch (IllegalArgumentException e)
{
Log.ignore(e);
}
catch (IllegalAccessException e)
{
Log.ignore(e);
}
catch (NoSuchMethodException e)
{
Log.ignore(e);
}
// Try for native match
try
{
Field type = vClass[0].getField("TYPE");
vClass[0] = (Class) type.get(null);
Method set = oClass.getMethod(name, vClass);
set.invoke(obj, arg);
return;
}
catch (NoSuchFieldException e)
{
Log.ignore(e);
}
catch (IllegalArgumentException e)
{
Log.ignore(e);
}
catch (IllegalAccessException e)
{
Log.ignore(e);
}
catch (NoSuchMethodException e)
{
Log.ignore(e);
}
// Try a field
try
{
Field field = oClass.getField(attr);
if (Modifier.isPublic(field.getModifiers()))
{
field.set(obj, value);
return;
}
}
catch (NoSuchFieldException e)
{
Log.ignore(e);
}
// Search for a match by trying all the set methods
Method[] sets = oClass.getMethods();
Method set = null;
for (int s = 0; sets != null && s < sets.length; s++)
{
if (name.equals(sets[s].getName()) && sets[s].getParameterTypes().length == 1)
{
// lets try it
try
{
set = sets[s];
sets[s].invoke(obj, arg);
return;
}
catch (IllegalArgumentException e)
{
Log.ignore(e);
}
catch (IllegalAccessException e)
{
Log.ignore(e);
}
}
}
// Try converting the arg to the last set found.
if (set != null)
{
try
{
Class sClass = set.getParameterTypes()[0];
if (sClass.isPrimitive())
{
for (int t = 0; t < __primitives.length; t++)
{
if (sClass.equals(__primitives[t]))
{
sClass = __primitiveHolders[t];
break;
}
}
}
Constructor cons = sClass.getConstructor(vClass);
arg[0] = cons.newInstance(arg);
set.invoke(obj, arg);
return;
}
catch (NoSuchMethodException e)
{
Log.ignore(e);
}
catch (IllegalAccessException e)
{
Log.ignore(e);
}
catch (InstantiationException e)
{
Log.ignore(e);
}
}
// No Joy
throw new NoSuchMethodException(oClass + "." + name + "(" + vClass[0] + ")");
}
/* ------------------------------------------------------------ */
/*
* Call a put method.
*
* @param obj @param node
*/
private void put(Object obj, XmlParser.Node node) throws Exception
{
if (!(obj instanceof Map))
throw new IllegalArgumentException("Object for put is not a Map: " + obj);
Map map = (Map) obj;
String name = node.getAttribute("name");
Object value = value(obj, node);
map.put(name, value);
if (Log.isDebugEnabled()) Log.debug("XML "+obj + ".put(" + name + "," + value + ")");
}
/* ------------------------------------------------------------ */
/*
* Call a get method. Any object returned from the call is passed to the configure method to
* consume the remaining elements. @param obj @param node @return @exception Exception
*/
private Object get(Object obj, XmlParser.Node node) throws Exception
{
Class oClass = nodeClass(node);
if (oClass != null)
obj = null;
else
oClass = obj.getClass();
String name = node.getAttribute("name");
String id = node.getAttribute("id");
if (Log.isDebugEnabled()) Log.debug("XML get " + name);
try
{
// try calling a getXxx method.
Method method = oClass.getMethod("get" + name.substring(0, 1).toUpperCase()
+ name.substring(1), (java.lang.Class[]) null);
obj = method.invoke(obj, (java.lang.Object[]) null);
configure(obj, node, 0);
}
catch (NoSuchMethodException nsme)
{
try
{
Field field = oClass.getField(name);
obj = field.get(obj);
configure(obj, node, 0);
}
catch (NoSuchFieldException nsfe)
{
throw nsme;
}
}
if (id != null) _idMap.put(id, obj);
return obj;
}
/* ------------------------------------------------------------ */
/*
* Call a method. A method is selected by trying all methods with matching names and number of
* arguments. Any object returned from the call is passed to the configure method to consume the
* remaining elements. Note that if this is a static call we consider only methods declared
* directly in the given class. i.e. we ignore any static methods in superclasses. @param obj
* @param node @return @exception Exception
*/
private Object call(Object obj, XmlParser.Node node) throws Exception
{
String id = node.getAttribute("id");
Class oClass = nodeClass(node);
if (oClass != null)
obj = null;
else if (obj != null) oClass = obj.getClass();
if (oClass == null) throw new IllegalArgumentException(node.toString());
int size = 0;
int argi = node.size();
for (int i = 0; i < node.size(); i++)
{
Object o = node.get(i);
if (o instanceof String) continue;
if (!((XmlParser.Node) o).getTag().equals("Arg"))
{
argi = i;
break;
}
size++;
}
Object[] arg = new Object[size];
for (int i = 0, j = 0; j < size; i++)
{
Object o = node.get(i);
if (o instanceof String) continue;
arg[j++] = value(obj, (XmlParser.Node) o);
}
String method = node.getAttribute("name");
if (Log.isDebugEnabled()) Log.debug("XML call " + method);
// Lets just try all methods for now
Method[] methods = oClass.getMethods();
for (int c = 0; methods != null && c < methods.length; c++)
{
if (!methods[c].getName().equals(method)) continue;
if (methods[c].getParameterTypes().length != size) continue;
if (Modifier.isStatic(methods[c].getModifiers()) != (obj == null)) continue;
if ((obj == null) && methods[c].getDeclaringClass() != oClass) continue;
Object n = null;
boolean called = false;
try
{
n = methods[c].invoke(obj, arg);
called = true;
}
catch (IllegalAccessException e)
{
Log.ignore(e);
}
catch (IllegalArgumentException e)
{
Log.ignore(e);
}
if (called)
{
if (id != null) _idMap.put(id, n);
configure(n, node, argi);
return n;
}
}
throw new IllegalStateException("No Method: " + node + " on " + oClass);
}
/* ------------------------------------------------------------ */
/*
* Create a new value object.
*
* @param obj @param node @return @exception Exception
*/
private Object newObj(Object obj, XmlParser.Node node) throws Exception
{
Class oClass = nodeClass(node);
String id = node.getAttribute("id");
int size = 0;
int argi = node.size();
for (int i = 0; i < node.size(); i++)
{
Object o = node.get(i);
if (o instanceof String) continue;
if (!((XmlParser.Node) o).getTag().equals("Arg"))
{
argi = i;
break;
}
size++;
}
Object[] arg = new Object[size];
for (int i = 0, j = 0; j < size; i++)
{
Object o = node.get(i);
if (o instanceof String) continue;
arg[j++] = value(obj, (XmlParser.Node) o);
}
if (Log.isDebugEnabled()) Log.debug("XML new " + oClass);
// Lets just try all constructors for now
Constructor[] constructors = oClass.getConstructors();
for (int c = 0; constructors != null && c < constructors.length; c++)
{
if (constructors[c].getParameterTypes().length != size) continue;
Object n = null;
boolean called = false;
try
{
n = constructors[c].newInstance(arg);
called = true;
}
catch (IllegalAccessException e)
{
Log.ignore(e);
}
catch (InstantiationException e)
{
Log.ignore(e);
}
catch (IllegalArgumentException e)
{
Log.ignore(e);
}
if (called)
{
if (id != null) _idMap.put(id, n);
configure(n, node, argi);
return n;
}
}
throw new IllegalStateException("No Constructor: " + node + " on " + obj);
}
/* ------------------------------------------------------------ */
/*
* Reference an id value object.
*
* @param obj @param node @return @exception NoSuchMethodException @exception
* ClassNotFoundException @exception InvocationTargetException
*/
private Object refObj(Object obj, XmlParser.Node node) throws Exception
{
String id = node.getAttribute("id");
obj = _idMap.get(id);
if (obj == null) throw new IllegalStateException("No object for id=" + id);
configure(obj, node, 0);
return obj;
}
/* ------------------------------------------------------------ */
/*
* Create a new array object.
*
*/
private Object newArray(Object obj, XmlParser.Node node) throws Exception
{
// Get the type
Class aClass = java.lang.Object.class;
String type = node.getAttribute("type");
final String id = node.getAttribute("id");
if (type != null)
{
aClass = TypeUtil.fromName(type);
if (aClass == null)
{
if ("String".equals(type))
aClass = java.lang.String.class;
else if ("URL".equals(type))
aClass = java.net.URL.class;
else if ("InetAddress".equals(type))
aClass = java.net.InetAddress.class;
else
aClass = Loader.loadClass(XmlConfiguration.class, type,true);
}
}
Object al=null;
Iterator iter = node.iterator("Item");
while(iter.hasNext())
{
XmlParser.Node item= (XmlParser.Node)iter.next();
String nid = item.getAttribute("id");
Object v = value(obj, item);
al=LazyList.add(al,(v==null&&aClass.isPrimitive())?ZERO:v);
if (nid != null)
_idMap.put(nid, v);
}
Object array = LazyList.toArray(al,aClass);
if (id != null)
_idMap.put(id, array);
return array;
}
/* ------------------------------------------------------------ */
/*
* Create a new map object.
*
*/
private Object newMap(Object obj, XmlParser.Node node) throws Exception
{
String id = node.getAttribute("id");
Map map = new HashMap();
if (id != null) _idMap.put(id, map);
for (int i = 0; i < node.size(); i++)
{
Object o = node.get(i);
if (o instanceof String) continue;
XmlParser.Node entry = (XmlParser.Node) o;
if (!entry.getTag().equals("Entry")) throw new IllegalStateException("Not an Entry");
XmlParser.Node key=null;
XmlParser.Node value=null;
for (int j = 0; j < entry.size(); j++)
{
o = entry.get(j);
if (o instanceof String) continue;
XmlParser.Node item = (XmlParser.Node) o;
if (!item.getTag().equals("Item")) throw new IllegalStateException("Not an Item");
if (key==null)
key=item;
else
value=item;
}
if (key==null || value==null)
throw new IllegalStateException("Missing Item in Entry");
String kid = key.getAttribute("id");
String vid = value.getAttribute("id");
Object k = value(obj, key);
Object v = value(obj, value);
map.put(k,v);
if (kid != null) _idMap.put(kid, k);
if (vid != null) _idMap.put(vid, v);
}
return map;
}
/* ------------------------------------------------------------ */
/*
* Create a new value object.
*
* @param obj @param node @return @exception Exception
*/
private Object propertyObj(Object obj, XmlParser.Node node) throws Exception
{
String id = node.getAttribute("id");
String name = node.getAttribute("name");
Object defval = node.getAttribute("default");
Object prop=null;
if (_propertyMap!=null && _propertyMap.containsKey(name))
{
prop=_propertyMap.get(name);
}
else if (defval != null)
prop=defval;
if (id != null)
_idMap.put(id, prop);
if (prop!=null)
configure(prop, node, 0);
return prop;
}
/* ------------------------------------------------------------ */
/*
* Get the value of an element. If no value type is specified, then white space is trimmed out
* of the value. If it contains multiple value elements they are added as strings before being
* converted to any specified type. @param node
*/
private Object value(Object obj, XmlParser.Node node) throws Exception
{
Object value = null;
// Get the type
String type = node.getAttribute("type");
// Try a ref lookup
String ref = node.getAttribute("ref");
if (ref != null)
{
value = _idMap.get(ref);
}
else
{
// handle trivial case
if (node.size() == 0)
{
if ("String".equals(type)) return "";
return null;
}
// Trim values
int first = 0;
int last = node.size() - 1;
// Handle default trim type
if (type == null || !"String".equals(type))
{
// Skip leading white
Object item = null;
while (first <= last)
{
item = node.get(first);
if (!(item instanceof String)) break;
item = ((String) item).trim();
if (((String) item).length() > 0) break;
first++;
}
// Skip trailing white
while (first < last)
{
item = node.get(last);
if (!(item instanceof String)) break;
item = ((String) item).trim();
if (((String) item).length() > 0) break;
last--;
}
// All white, so return null
if (first > last) return null;
}
if (first == last)
// Single Item value
value = itemValue(obj, node.get(first));
else
{
// Get the multiple items as a single string
StringBuffer buf = new StringBuffer();
synchronized (buf)
{
for (int i = first; i <= last; i++)
{
Object item = node.get(i);
buf.append(itemValue(obj, item));
}
value = buf.toString();
}
}
}
// Untyped or unknown
if (value == null)
{
if ("String".equals(type)) return "";
return null;
}
// Try to type the object
if (type == null)
{
if (value != null && value instanceof String) return ((String) value).trim();
return value;
}
if ("String".equals(type) || "java.lang.String".equals(type)) return value.toString();
Class pClass = TypeUtil.fromName(type);
if (pClass != null) return TypeUtil.valueOf(pClass, value.toString());
if ("URL".equals(type) || "java.net.URL".equals(type))
{
if (value instanceof URL) return value;
try
{
return new URL(value.toString());
}
catch (MalformedURLException e)
{
throw new InvocationTargetException(e);
}
}
if ("InetAddress".equals(type) || "java.net.InetAddress".equals(type))
{
if (value instanceof InetAddress) return value;
try
{
return InetAddress.getByName(value.toString());
}
catch (UnknownHostException e)
{
throw new InvocationTargetException(e);
}
}
throw new IllegalStateException("Unknown type " + type);
}
/* ------------------------------------------------------------ */
/*
* Get the value of a single element. @param obj @param item @return @exception Exception
*/
private Object itemValue(Object obj, Object item) throws Exception
{
// String value
if (item instanceof String) return item;
XmlParser.Node node = (XmlParser.Node) item;
String tag = node.getTag();
if ("Call".equals(tag)) return call(obj, node);
if ("Get".equals(tag)) return get(obj, node);
if ("New".equals(tag)) return newObj(obj, node);
if ("Ref".equals(tag)) return refObj(obj, node);
if ("Array".equals(tag)) return newArray(obj, node);
if ("Map".equals(tag)) return newMap(obj, node);
if ("Property".equals(tag)) return propertyObj(obj,node);
if ("SystemProperty".equals(tag))
{
String name = node.getAttribute("name");
String defaultValue = node.getAttribute("default");
return System.getProperty(name, defaultValue);
}
Log.warn("Unknown value tag: " + node, new Throwable());
return null;
}
/* ------------------------------------------------------------ */
/* ------------------------------------------------------------ */
/* ------------------------------------------------------------ */
/* ------------------------------------------------------------ */
/**
* Run the XML configurations as a main application.
* The command line is used to obtain properties files (must be named '*.properties') and XmlConfiguration
* files.
* <p>
* Any property file on the command line is added to a combined Property instance that is passed to
* each configuration file via {@link XmlConfiguration#setProperties(Map)}.
* <p>
* Each configuration file on the command line is used to create a new XmlConfiguration instance and the
* {@link XmlConfiguration#configure()} method is used to create the configured object. If the resulting
* object is an instance of {@link LifeCycle}, then it is started.
* <p>
* Any IDs created in a configuration are passed to the next configuration file on the command line using
* {@link #getIdMap()} and {@link #setIdMap(Map)}. This allows objects with IDs created in one config file to
* be referenced in subsequent config files on the command line.
*
* @param args array of property and xml configuration filenames or {@link Resource}s.
*/
public static void main(String[] args)
{
try
{
Properties properties=new Properties();
XmlConfiguration last=null;
Object[] obj = new Object[args.length];
for (int i = 0; i < args.length; i++)
{
if (args[i].toLowerCase().endsWith(".properties"))
{
properties.load(Resource.newResource(args[i]).getInputStream());
}
else
{
XmlConfiguration configuration = new XmlConfiguration(Resource.newResource(args[i]).getURL());
if (last!=null)
configuration.getIdMap().putAll(last.getIdMap());
if (properties.size()>0)
configuration.setProperties(properties);
obj[i] = configuration.configure();
last=configuration;
}
}
for (int i = 0; i < args.length; i++)
{
if (obj[i] instanceof LifeCycle)
{
LifeCycle lc = (LifeCycle)obj[i];
if (!lc.isRunning())
lc.start();
}
}
}
catch (Exception e)
{
Log.warn(Log.EXCEPTION, e);
}
}
}