Examples of org.apache.log.output.io.rotate.RevolvingFileStrategy

org.apache.log.output.io.rotate.RevolvingFileStrategy
strategy for naming log files based on appending revolving suffix. If the initial rotation is not specified then the class will attempt to calculate the rotation number via the following algorithm. It will search for the file with the highest number in the rotation. It will then increment its rotation number and use that number. If all files in rotation are present then it will then set the initial rotation to the next rotation after the most recently created file. @author Avalon Development Team @author Bernhard Huber @author Peter Donald @author David Gray

            final int initialRotation =
                conf.getAttributeAsInteger( "init", 5 );
            final int maxRotation =
                conf.getAttributeAsInteger( "max", 10 );


            return new RevolvingFileStrategy( file, initialRotation, maxRotation );
        }


        // default file strategy
        final String pattern = conf.getAttribute( "pattern", null );
        final String suffix = conf.getAttribute( "suffix", null );

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    public void testNew()
        throws Exception
    {
        deleteFiles( 9 );


        final RevolvingFileStrategy strategy =
            new RevolvingFileStrategy( m_baseFile, 9 );


        assertEquals( "rotation", 0, strategy.getCurrentRotation() );
    }

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        throws Exception
    {
        deleteFiles( 9 );
        createFile( 0, 0 );


        final RevolvingFileStrategy strategy =
            new RevolvingFileStrategy( m_baseFile, 9 );


        assertEquals( "rotation", 1, strategy.getCurrentRotation() );
    }

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        createFile( 1, 0 );
        createFile( 2, 0 );
        createFile( 3, 0 );
        createFile( 4, 0 );


        final RevolvingFileStrategy strategy =
            new RevolvingFileStrategy( m_baseFile, 9 );


        assertEquals( "rotation", 5, strategy.getCurrentRotation() );
    }

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    {
        deleteFiles( 9 );
        createFile( 0, 0 );
        createFile( 4, 0 );


        final RevolvingFileStrategy strategy =
            new RevolvingFileStrategy( m_baseFile, 9 );


        assertEquals( "rotation", 5, strategy.getCurrentRotation() );
    }

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    {
        deleteFiles( 9 );
        createFile( 0, OLD_AGE ); //Note this is oldest
        createFile( 4, 0 );


        final RevolvingFileStrategy strategy =
            new RevolvingFileStrategy( m_baseFile, 9 );


        assertEquals( "rotation", 5, strategy.getCurrentRotation() );
    }

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    {
        deleteFiles( 9 );
        createFile( 0, 0 );
        createFile( 4, OLD_AGE );


        final RevolvingFileStrategy strategy =
            new RevolvingFileStrategy( m_baseFile, 9 );


        assertEquals( "rotation", 5, strategy.getCurrentRotation() );
    }

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        createFile( 6, 0 );
        createFile( 7, 0 );
        createFile( 8, 0 );
        createFile( 9, 0 );


        final RevolvingFileStrategy strategy =
            new RevolvingFileStrategy( m_baseFile, 9 );


        assertEquals( "rotation", 0, strategy.getCurrentRotation() );
    }

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        createFile( 6, 0 );
        createFile( 7, OLD_AGE );
        createFile( 8, 0 );
        createFile( 9, 0 );


        final RevolvingFileStrategy strategy =
            new RevolvingFileStrategy( m_baseFile, 9 );


        assertEquals( "rotation", 7, strategy.getCurrentRotation() );
    }

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     */
    public void testSizeRevoling()
        throws Exception
    {
        final File file = new File( "test/size-revolve.log" );
        final FileStrategy fileStrategy = new RevolvingFileStrategy( file, 20 );
        final RotateStrategy rotateStrategy = new RotateStrategyBySize( 128 * 1024 );
        final Logger logger = getLogger( fileStrategy, rotateStrategy );


        doTest( logger );
    }

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