Examples of javax.management.AttributeList

javax.management.AttributeList
A list of a MBean attributes.
An AttributeList can be used to get and set multiple MBean attributes in one invocation.
It is an array list that can only contain {@link javax.management.Attribute}s
Note: AttributeLists must be externally synchronized. @see javax.management.Attribute @author Adrian Brock. @version $Revision: 1.2 $

        }
    }


    public AttributeList setAttributes(ObjectName name, AttributeList attributes) throws InstanceNotFoundException, ReflectionException {
        AbstractName abstractName = toAbstractName(name);
        AttributeList set = new AttributeList(attributes.size());
        for (Iterator iterator = attributes.iterator(); iterator.hasNext();) {
            Attribute attribute = (Attribute) iterator.next();
            String attributeName = attribute.getName();
            Object attributeValue = attribute.getValue();
            try {
                kernel.setAttribute(abstractName, attributeName, attributeValue);
                set.add(attribute);
            } catch (NoSuchAttributeException e) {
                // ignored - caller will see value was not set because this attribute will not be in the attribute list
            } catch (GBeanNotFoundException e) {
                throw (InstanceNotFoundException)new InstanceNotFoundException(name.getCanonicalName()).initCause(e);
            } catch (InternalKernelException e) {

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            throw new ReflectionException(e);
        }
    }


    public AttributeList getAttributes(String[] attributes) {
        AttributeList results = new AttributeList(attributes.length);
        for (int i = 0; i < attributes.length; i++) {
            String name = attributes[i];
            try {
                Object value = getAttribute(name);
                results.add(new Attribute(name, value));
            } catch (JMException e) {
                log.warn("Exception while getting attribute " + name, e);
            }
        }
        return results;

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        }
        return results;
    }


    public AttributeList setAttributes(AttributeList attributes) {
        AttributeList results = new AttributeList(attributes.size());
        for (Iterator iterator = attributes.iterator(); iterator.hasNext();) {
            Attribute attribute = (Attribute) iterator.next();
            try {
                setAttribute(attribute);
                results.add(attribute);
            } catch (JMException e) {
                log.warn("Exception while setting attribute " + attribute.getName(), e);
            }
        }
        return results;

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        }
        throw new AttributeNotFoundException( "Cannot find " + attributeName + " attribute " );
    }


    public AttributeList getAttributes(String[] attributeNames) {
        AttributeList resultList = new AttributeList();
        if ( attributeNames.length == 0 ) return resultList;
        for ( int i = 0; i < attributeNames.length; i++ ) {
            try {
                Object value = getAttribute( attributeNames[i] );
                resultList.add( new Attribute( attributeNames[i],
                                               value ) );
            } catch ( Exception e ) {
                e.printStackTrace();
            }
        }

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                                                 ReflectionException {
        throw new AttributeNotFoundException( "No attribute can be set in this MBean" );
    }


    public AttributeList setAttributes(AttributeList attributes) {
        return new AttributeList();
    }

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  public abstract void setAttribute(Object o, Attribute attribute)
      throws AttributeNotFoundException, InvalidAttributeValueException,
      MBeanException, ReflectionException;
  
  public AttributeList getAttributes(Object o, String[] attributes) {
    AttributeList list = new AttributeList();
        for (String name : attributes) {
      try {
        Object value = getAttribute(o, name);
              if (value != null)
                  list.add(new Attribute(name, value));
      } catch (Exception e) {
      }
        }
        return list;
  }

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        return list;
  }


  public AttributeList setAttributes(Object o, AttributeList attributes) {
    Attribute[] attrs = (Attribute[]) attributes.toArray(new Attribute[0]);
        AttributeList retlist = new AttributeList();
        for (Attribute attr : attrs) {
            String name = attr.getName();
            Object value = attr.getValue();
            try {
              setAttribute(o, attr);
                retlist.add(new Attribute(name, value));
            } catch (Exception e) {
      }
        }
        return retlist;
  }

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            throw new MBeanException(e);
        }
    }


    public AttributeList getAttributes(ObjectName name, String[] attributes) throws InstanceNotFoundException, ReflectionException {
        AttributeList attributeList = new AttributeList(attributes.length);
        for (int i = 0; i < attributes.length; i++) {
            String attribute = attributes[i];
            try {
                Object value = kernel.getAttribute(name, attribute);
                attributeList.add(i, new Attribute(attribute, value));
            } catch (NoSuchAttributeException e) {
                // ignored - caller will simply find no value
            } catch (GBeanNotFoundException e) {
                throw new InstanceNotFoundException(name.getCanonicalName());
            } catch (InternalKernelException e) {

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            throw new MBeanException(e);
        }
    }


    public AttributeList setAttributes(ObjectName name, AttributeList attributes) throws InstanceNotFoundException, ReflectionException {
        AttributeList set = new AttributeList(attributes.size());
        for (Iterator iterator = attributes.iterator(); iterator.hasNext();) {
            Attribute attribute = (Attribute) iterator.next();
            String attributeName = attribute.getName();
            Object attributeValue = attribute.getValue();
            try {
                kernel.setAttribute(name, attributeName, attributeValue);
                set.add(attribute);
            } catch (NoSuchAttributeException e) {
                // ignored - caller will see value was not set because this attribute will not be in the attribute list
            } catch (GBeanNotFoundException e) {
                throw new InstanceNotFoundException(name.getCanonicalName());
            } catch (InternalKernelException e) {

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    }


    public void testGetAttributes() throws Exception
    {
        ConcreteMBean mbean = new ConcreteMBean();
        AttributeList list = mbean.getAttributes(new String[]
        { "attribute1", "attribute2" });
        assertEquals("value1", ((Attribute) list.get(0)).getValue());
        assertEquals("value2", ((Attribute) list.get(1)).getValue());
    }

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