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 $


      setNamedAttribute(attribute);
   }


   public synchronized AttributeList getAttributes(String[] names) {
      AttributeList al = new AttributeList();
      for (String name : names) {
         Attribute attr = getNamedAttribute(name);
         if (attr != null) {
            al.add(attr);
         } else {
            log.warn("Did not find attribute " + name);
         }
      }
      return al;

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      }
      return al;
   }


   public synchronized AttributeList setAttributes(AttributeList list) {
      AttributeList results = new AttributeList();
      for (Object aList : list) {
         Attribute attr = (Attribute) aList;


         if (setNamedAttribute(attr)) {
            results.add(attr);
         } else {
            if (log.isWarnEnabled()) {
               log.warn("Failed to update attribute name " + attr.getName() + " with value "
                       + attr.getValue());
            }

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        if (attributes == null) {
            throw new IllegalArgumentException("Attributes can't be null");
        }


        /* Get each requested attribute. */
        AttributeList results = new AttributeList();


        for (int i = 0; i < attributes.length; i++) {
            try {
                Object value = getAttribute(attributes[i]);
                results.add(new Attribute(attributes[i], value));
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

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        if (attributes == null) {
            throw new IllegalArgumentException("Attribute list can't be null");
        }


        /* Set each attribute specified. */
        AttributeList results = new AttributeList();


        for (int i = 0; i < attributes.size(); i++) {
            Attribute attr = (Attribute) attributes.get(i);
            try {
                setAttribute(attr);


                /*
                 * Add the name and new value to the result list. Be sure to
                 * ask the MBean for the new value, rather than simply using
                 * attr.getValue(), because the new value may not be same if it
                 * is modified according to the JE implementation.
                 */
                String name = attr.getName();
                Object newValue = getAttribute(name);
                results.add(new Attribute(name, newValue));
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

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        /* Sanity checking. */
        if (attributes == null) {
            throw new IllegalArgumentException("Attributes can't be null");
        }


        AttributeList results = new AttributeList();


        for (int i = 0; i < attributes.length; i++) {
            try {
                Object value = getAttribute(attributes[i]);
                results.add(new Attribute(attributes[i], value));
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

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        /* Sanity checking. */
        if (attributes == null) {
            throw new IllegalArgumentException("Attribute list can't be null");
        }


        AttributeList results = new AttributeList();


        for (int i = 0; i < attributes.size(); i++) {
            Attribute attr = (Attribute) attributes.get(i);
            try {
                setAttribute(attr);
                String name = attr.getName();
                Object newValue = getAttribute(name);
                results.add(new Attribute(name, newValue));
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

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    public void testReadWriteAttributeListStandalone() throws Exception {
        MBeanServerConnection connection = setupAndGetConnection(new MBeanInfoAdditionalInitialization(TYPE_STANDALONE, new TestExtension()));


        ObjectName name = createObjectName(Constants.DOMAIN + ":subsystem=test");
        String[] attrNames = new String[] {"roInt", "int", "bigint", "bigdec", "boolean", "bytes", "double", "string", "list", "long", "type"};
        AttributeList list = connection.getAttributes(name, attrNames);
        Assert.assertEquals(list.size(), attrNames.length);


        checkAttributeList(attrNames, list, 1, 2, BigInteger.valueOf(3), BigDecimal.valueOf(4), false, new byte[] {5, 6}, 7.0, "8",
                Collections.singletonList(9), 10, ModelType.INT);


        list = new AttributeList();
        list.add(new Attribute("int", 102));
        //TODO BigInteger not working in current DMR version
        //list.add(new Attribute("bigint", BigInteger.valueOf(103)));
        list.add(new Attribute("bigdec", BigDecimal.valueOf(104)));
        list.add(new Attribute("boolean", true));
        list.add(new Attribute("bytes", new byte[] {105, 106}));
        list.add(new Attribute("double", 107.0));
        list.add(new Attribute("string", "108"));
        list.add(new Attribute("list", new Integer[] {109}));
        list.add(new Attribute("long", 110L));
        list.add(new Attribute("type", ModelType.STRING.toString()));
        connection.setAttributes(name, list);


        list = connection.getAttributes(name, attrNames);
        checkAttributeList(attrNames, list, 1, 102, BigInteger.valueOf(103), BigDecimal.valueOf(104), true, new byte[] {105, 106}, 107.0, "108",
                Collections.singletonList(109), 110, ModelType.STRING);

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    public void testReadWriteAttributeListDomain() throws Exception {
        MBeanServerConnection connection = setupAndGetConnection(new MBeanInfoAdditionalInitialization(TYPE_DOMAIN, new TestExtension()));


        ObjectName name = createObjectName(Constants.DOMAIN + ":subsystem=test");
        String[] attrNames = new String[] {"roInt", "int", "bigint", "bigdec", "boolean", "bytes", "double", "string", "list", "long", "type"};
        AttributeList list = connection.getAttributes(name, attrNames);
        Assert.assertEquals(list.size(), attrNames.length);


        checkAttributeList(attrNames, list, 1, 2, BigInteger.valueOf(3), BigDecimal.valueOf(4), false, new byte[] {5, 6}, 7.0, "8",
                Collections.singletonList(9), 10, ModelType.INT);


        list = new AttributeList();
        try {
            list.add(new Attribute("int", 102));
            //TODO BigInteger not working in current DMR version
            //list.add(new Attribute("bigint", BigInteger.valueOf(103)));
            list.add(new Attribute("bigdec", BigDecimal.valueOf(104)));
            list.add(new Attribute("boolean", true));
            list.add(new Attribute("bytes", new byte[] {105, 106}));
            list.add(new Attribute("double", 107.0));
            list.add(new Attribute("string", "108"));
            list.add(new Attribute("list", new Integer[] {109}));
            list.add(new Attribute("long", 110L));
            list.add(new Attribute("type", ModelType.STRING.toString()));
            connection.setAttributes(name, list);
            Assert.fail("Should not have been able to set attributes");
        } catch (Exception expected) {
        }

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            throw new RuntimeOperationsException
                (new IllegalArgumentException("Attribute names list is null"),
                 "Attribute names list is null");


        // Prepare our response, eating all exceptions
        AttributeList response = new AttributeList();
        for (int i = 0; i < names.length; i++) {
            try {
                response.add(new Attribute(names[i],getAttribute(names[i])));
            } catch (Exception e) {
                ; // Not having a particular attribute in the response
                ; // is the indication of a getter problem
            }
        }

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            throw new RuntimeOperationsException
                (new IllegalArgumentException("Attributes list is null"),
                 "Attributes list is null");


        // Prepare and return our response, eating all exceptions
        AttributeList response = new AttributeList();
        String names[] = new String[attributes.size()];
        int n = 0;
        Iterator items = attributes.iterator();
        while (items.hasNext()) {
            Attribute item = (Attribute) items.next();

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