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    1   /**
    2    * Copyright (c) 2002-2011 "Neo Technology,"
    3    * Network Engine for Objects in Lund AB [http://neotechnology.com]
    4    *
    5    * This file is part of Neo4j.
    6    *
    7    * Neo4j is free software: you can redistribute it and/or modify
    8    * it under the terms of the GNU General Public License as published by
    9    * the Free Software Foundation, either version 3 of the License, or
    10   * (at your option) any later version.
    11   *
    12   * This program is distributed in the hope that it will be useful,
    13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    15   * GNU General Public License for more details.
    16   *
    17   * You should have received a copy of the GNU General Public License
    18   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    19   */
    20  package org.neo4j.server.webadmin.rest.representations;
    21
    22  import org.neo4j.helpers.collection.IterableWrapper;
    23  import org.neo4j.server.rest.repr.ListRepresentation;
    24  import org.neo4j.server.rest.repr.ObjectRepresentation;
    25  import org.neo4j.server.rest.repr.Representation;
    26  import org.neo4j.server.rest.repr.ValueRepresentation;
    27
    28  import javax.management.InstanceNotFoundException;
    29  import javax.management.IntrospectionException;
    30  import javax.management.MBeanAttributeInfo;
    31  import javax.management.MBeanInfo;
    32  import javax.management.MBeanServer;
    33  import javax.management.ObjectName;
    34  import javax.management.ReflectionException;
    35  import java.io.UnsupportedEncodingException;
    36  import java.lang.management.ManagementFactory;
    37  import java.net.URLEncoder;
    38  import java.util.Arrays;
    39
    40  public class JmxMBeanRepresentation extends ObjectRepresentation
    41  {
    42
    43      protected ObjectName beanName;
    44      protected MBeanServer jmxServer = ManagementFactory.getPlatformMBeanServer();
    45
    46      public JmxMBeanRepresentation( ObjectName beanInstance )
    47      {
    48          super( "jmxBean" );
    49          this.beanName = beanInstance;
    50      }
    51
    52      @Mapping( "name" )
    53      public ValueRepresentation getName()
    54      {
    55          return ValueRepresentation.string( beanName.toString() );
    56      }
    57
    58      @Mapping( "url" )
    59      public ValueRepresentation getUrl()
    60      {
    61          try
    62          {
    63              String value = URLEncoder.encode( beanName.toString(), "UTF-8" ).replace( "%3A", "/" );
    64              return ValueRepresentation.string( value );
    65          } catch ( UnsupportedEncodingException e )
    66          {
    67              throw new RuntimeException( "Could not encode string as UTF-8", e );
    68          }
    69      }
    70
    71      @Mapping( "description" )
    72      public ValueRepresentation getDescription() throws IntrospectionException, InstanceNotFoundException, ReflectionException
    73      {
    74          MBeanInfo beanInfo = jmxServer.getMBeanInfo( beanName );
    75          return ValueRepresentation.string( beanInfo.getDescription() );
    76      }
    77
    78      @Mapping( "attributes" )
    79      public ListRepresentation getAttributes() throws IntrospectionException, InstanceNotFoundException, ReflectionException
    80      {
    81          MBeanInfo beanInfo = jmxServer.getMBeanInfo( beanName );
    82
    83          return new ListRepresentation( "jmxAttribute", new IterableWrapper<Representation, MBeanAttributeInfo>( Arrays.asList( beanInfo.getAttributes() ) )
    84          {
    85              @Override
    86              protected Representation underlyingObjectToObject( MBeanAttributeInfo attrInfo )
    87              {
    88                  return new JmxAttributeRepresentation( beanName, attrInfo );
    89              }
    90          } );
    91      }
    92  }