Examples of org.apache.avalon.meta.info.InfoDescriptor

org.apache.avalon.meta.info.InfoDescriptor
This class is used to provide explicit information to assembler and administrator about the Component. It includes information such as;
- a symbolic name
- classname
- version
The InfoDescriptor also includes an arbitrary set of attributes about component. Usually these are container specific attributes that can store arbitrary information. The attributes should be stored with keys based on package name of container. @author Avalon Development Team @version $Revision: 1.8 $ $Date: 2003/12/14 14:11:00 $

        final Version version = getVersion( tag );
        final String lifestyle = getLifestyle( tag );
        final String type = getJavaClass().getFullyQualifiedName();
        final Properties properties = new AttributeTag( getJavaClass() ).getProperties();
        final String schema = new SchemaTag( getJavaClass() ).getConfigurationSchema();
        final InfoDescriptor info = new InfoDescriptor( name, type, version, lifestyle, schema, properties );
        final ServiceDescriptor[] services = new ServicesTag( getJavaClass() ).getServices();
        final CategoryDescriptor[] loggers = new LoggerTag( getJavaClass() ).getCategories();
        final DependencyDescriptor[] dependencies =
          new DependencyTag( getJavaClass() ).getDependencies();
        final StageDescriptor[] stages = new StageTag( getJavaClass() ).getStages();

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        // meta-data level - change is backward compatible
        //


        configuration = info.getChild( "info", false );


        final InfoDescriptor descriptor =
            buildInfoDescriptor( classname, configuration );


        configuration = info.getChild( "loggers" );
        final CategoryDescriptor[] loggers = buildLoggers( configuration );

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          info.getChild( "schema" ).getValue( null );
        final Properties attributes =
            buildAttributes( info.getChild( "attributes" ) );
        final String lifestyle = 
          buildLifestyle( info, attributes );
        return new InfoDescriptor( 
          name, classname, version, lifestyle, schema, attributes );
    }

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        super( name );
    }


    protected Descriptor getDescriptor()
    {
        return new InfoDescriptor(
          m_name, m_classname, m_version, m_lifestyle, m_schema, getProperties());
    }

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    }


    protected void checkDescriptor( Descriptor desc )
    {
        super.checkDescriptor( desc );
        InfoDescriptor info = (InfoDescriptor) desc;
        assertEquals( m_name, info.getName() );
        assertEquals( m_classname, info.getClassname() );
        assertEquals( m_version, info.getVersion() );
        assertEquals( m_lifestyle, info.getLifestyle() );
        assertEquals( m_schema, info.getConfigurationSchema() );
    }

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    public void testConstructor()
    {
        try
        {
            new InfoDescriptor( 
              m_name, null, m_version, m_lifestyle, m_schema, getProperties() );
            fail("Did not throw the proper NullPointerException");
        }
        catch (NullPointerException npe)
        {
            // Success!
        }


        try
        {
            new InfoDescriptor( 
              m_name, "foo/fake/ClassName", m_version, m_lifestyle, 
              m_schema, getProperties());
            fail("Did not throw the proper IllegalArgumentException");
        }
        catch (IllegalArgumentException iae)
        {
            // Success!
        }


        try
        {
            new InfoDescriptor( 
              m_name, m_classname, m_version, InfoDescriptor.POOLED, 
              m_schema, getProperties() );
            new InfoDescriptor( 
              m_name, m_classname, m_version, InfoDescriptor.SINGLETON, 
              m_schema, getProperties() );
            new InfoDescriptor( 
              m_name, m_classname, m_version, InfoDescriptor.THREAD, 
              m_schema, getProperties() );
            new InfoDescriptor( 
              m_name, m_classname, m_version, InfoDescriptor.TRANSIENT, 
              m_schema, getProperties() );


            // All these should pass.


            new InfoDescriptor( 
              m_name, m_classname, m_version, "Fake Lifestyle", 
              m_schema, getProperties() );


            fail( "Did not throw the proper IllegalArgumentException" );
        }

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org.apache.avalon.meta.info.test.InfoDescriptorTestCase

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