Esempio n. 1
0
  static {
    classNamesToConnectionTesters.put(
        C3P0Defaults.connectionTesterClassName(), C3P0Defaults.connectionTester());

    String userManagementCoordinator = C3P0ConfigUtils.getPropsFileConfigProperty(MC_PARAM);
    if (userManagementCoordinator != null) {
      try {
        mc = (ManagementCoordinator) Class.forName(userManagementCoordinator).newInstance();
      } catch (Exception e) {
        if (logger.isLoggable(MLevel.WARNING))
          logger.log(
              MLevel.WARNING,
              "Could not instantiate user-specified ManagementCoordinator "
                  + userManagementCoordinator
                  + ". Using NullManagementCoordinator (c3p0 JMX management disabled!)",
              e);
        mc = new NullManagementCoordinator();
      }
    } else {
      try {
        Class.forName("java.lang.management.ManagementFactory");

        mc =
            (ManagementCoordinator)
                Class.forName("com.mchange.v2.c3p0.management.ActiveManagementCoordinator")
                    .newInstance();
      } catch (Exception e) {
        if (logger.isLoggable(MLevel.INFO))
          logger.log(
              MLevel.INFO, "jdk1.5 management interfaces unavailable... JMX support disabled.", e);
        mc = new NullManagementCoordinator();
      }
    }
  }
Esempio n. 2
0
 public static ConnectionTester getConnectionTester(String className) {
   try {
     ConnectionTester out = (ConnectionTester) classNamesToConnectionTesters.get(className);
     if (out == null) {
       out = (ConnectionTester) Class.forName(className).newInstance();
       classNamesToConnectionTesters.put(className, out);
     }
     return out;
   } catch (Exception e) {
     if (logger.isLoggable(MLevel.WARNING))
       logger.log(
           MLevel.WARNING,
           "Could not create for find ConnectionTester with class name '"
               + className
               + "'. Using default.",
           e);
     return C3P0Defaults.connectionTester();
   }
 }
Esempio n. 3
0
 public static ConnectionCustomizer getConnectionCustomizer(String className) throws SQLException {
   if (className == null) return null;
   else {
     try {
       ConnectionCustomizer out =
           (ConnectionCustomizer) classNamesToConnectionCustomizers.get(className);
       if (out == null) {
         out = (ConnectionCustomizer) Class.forName(className).newInstance();
         classNamesToConnectionCustomizers.put(className, out);
       }
       return out;
     } catch (Exception e) {
       if (logger.isLoggable(MLevel.WARNING))
         logger.log(
             MLevel.WARNING,
             "Could not create for find ConnectionCustomizer with class name '" + className + "'.",
             e);
       throw SqlUtils.toSQLException(e);
     }
   }
 }
Esempio n. 4
0
  public Reference createReference(Object bean) throws NamingException {
    try {
      BeanInfo bi = Introspector.getBeanInfo(bean.getClass());
      PropertyDescriptor[] pds = bi.getPropertyDescriptors();
      List refAddrs = new ArrayList();
      String factoryClassLocation = defaultFactoryClassLocation;

      boolean using_ref_props = referenceProperties.size() > 0;

      // we only include this so that on dereference we are not surprised to find some properties
      // missing
      if (using_ref_props)
        refAddrs.add(
            new BinaryRefAddr(REF_PROPS_KEY, SerializableUtils.toByteArray(referenceProperties)));

      for (int i = 0, len = pds.length; i < len; ++i) {
        PropertyDescriptor pd = pds[i];
        String propertyName = pd.getName();
        // System.err.println("Making Reference: " + propertyName);

        if (using_ref_props && !referenceProperties.contains(propertyName)) {
          // System.err.println("Not a ref_prop -- continuing.");
          continue;
        }

        Class propertyType = pd.getPropertyType();
        Method getter = pd.getReadMethod();
        Method setter = pd.getWriteMethod();
        if (getter != null
            && setter != null) // only use properties that are both readable and writable
        {
          Object val = getter.invoke(bean, EMPTY_ARGS);
          // System.err.println( "val: " + val );
          if (propertyName.equals("factoryClassLocation")) {
            if (String.class != propertyType)
              throw new NamingException(
                  this.getClass().getName()
                      + " requires a factoryClassLocation property to be a string, "
                      + propertyType.getName()
                      + " is not valid.");
            factoryClassLocation = (String) val;
          }

          if (val == null) {
            RefAddr addMe = new BinaryRefAddr(propertyName, NULL_TOKEN_BYTES);
            refAddrs.add(addMe);
          } else if (Coerce.canCoerce(propertyType)) {
            RefAddr addMe = new StringRefAddr(propertyName, String.valueOf(val));
            refAddrs.add(addMe);
          } else // other Object properties
          {
            RefAddr addMe = null;
            PropertyEditor pe = BeansUtils.findPropertyEditor(pd);
            if (pe != null) {
              pe.setValue(val);
              String textValue = pe.getAsText();
              if (textValue != null) addMe = new StringRefAddr(propertyName, textValue);
            }
            if (addMe == null) // property editor approach failed
            addMe =
                  new BinaryRefAddr(
                      propertyName,
                      SerializableUtils.toByteArray(
                          val, indirector, IndirectPolicy.INDIRECT_ON_EXCEPTION));
            refAddrs.add(addMe);
          }
        } else {
          // 				System.err.println(this.getClass().getName() +
          // 						   ": Skipping " + propertyName + " because it is " + (setter == null ?
          // "read-only." : "write-only."));

          if (logger.isLoggable(MLevel.WARNING))
            logger.warning(
                this.getClass().getName()
                    + ": Skipping "
                    + propertyName
                    + " because it is "
                    + (setter == null ? "read-only." : "write-only."));
        }
      }
      Reference out =
          new Reference(bean.getClass().getName(), factoryClassName, factoryClassLocation);
      for (Iterator ii = refAddrs.iterator(); ii.hasNext(); ) out.add((RefAddr) ii.next());
      return out;
    } catch (Exception e) {
      // e.printStackTrace();
      if (Debug.DEBUG && logger.isLoggable(MLevel.FINE))
        logger.log(MLevel.FINE, "Exception trying to create Reference.", e);

      throw new NamingException("Could not create reference from bean: " + e.toString());
    }
  }
Esempio n. 5
0
 /** @deprecated use or rewrite in terms of ReflectUtils.findProxyConstructor() */
 private static Constructor createProxyConstructor(Class intfc) throws NoSuchMethodException {
   Class[] proxyInterfaces = new Class[] {intfc};
   Class proxyCl =
       Proxy.getProxyClass(C3P0PooledConnection.class.getClassLoader(), proxyInterfaces);
   return proxyCl.getConstructor(PROXY_CTOR_ARGS);
 }