Examples of org.apache.velocity.tools.generic.MathTool

Package org.apache.velocity.tools.generic

Examples of org.apache.velocity.tools.generic.MathTool

org.apache.velocity.tools.generic.MathTool
Tool for performing math in Velocity.

Some things should be noted here:
- This class does not have methods that take primitives. This is simply because Velocity wraps all primitives for us automagically.
- No null pointer, number format, or divide by zero exceptions are thrown here. This is because such exceptions thrown in template halt rendering. It should be sufficient debugging feedback that Velocity will render the reference literally. (e.g. $math.div(1, 0) renders as '$math.div(1, 0)')
```
 Example tools.xml config: <tools> <toolbox scope="application"> <tool class="org.apache.velocity.tools.generic.MathTool"/> </toolbox> </tools> 
```
@author Nathan Bubna @author Leon Messerschmidt @version $Revision: 545420 $ $Date: 2007-06-07 22:21:52 -0700 (Thu, 07 Jun 2007) $

    context.put("link", new LinkTool());
    context.put("list", new ListTool());
    context.put("number", new NumberTool());
    context.put("render", new RenderTool());
    context.put("sorter", new SortTool());
    context.put("math", new MathTool());
    context.put("alternator", new AlternatorTool());
    context.put("comparisonDate", new ComparisonDateTool());
    context.put("iterator", new IteratorTool());
    context.put("parser", new ValueParser());
  }

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        /* xml */
        assertEquals("&quot;&amp;&lt;&gt;",escapeTool.html("\"&<>"));
    }


    public @Test void testMathTool() {
        MathTool mathTool = (MathTool)toolbox.get("math");
        assertNotNull(mathTool);
        assertEquals(1,mathTool.abs(-1));
        assertEquals(2,mathTool.add(1,1));
        assertEquals(3,mathTool.ceil(2.5));
        assertEquals(4,mathTool.div(8,2));
        assertEquals(5,mathTool.floor(5.1));
        assertEquals(6,mathTool.getAverage(new long[] {5,6,7}));
        /* getTotal() watches the type of its first argument, so assertEquals needs a long */
        assertEquals((long)7,mathTool.getTotal(new long[] {2,2,3}));
        assertEquals(8,mathTool.idiv(130,16));
        assertEquals(9,mathTool.max(9,-10));
        assertEquals(10,mathTool.min(10,20));
        assertEquals(11,mathTool.mod(37,13));
        assertEquals(12,mathTool.mul(3,4));
        assertEquals(13,mathTool.round(12.8));
        assertEquals(14.2,mathTool.roundTo(1,14.18));
        assertEquals(-5.0,mathTool.roundTo(2,-4.999));
        assertEquals(15,mathTool.sub(30,15));
        assertEquals(16,mathTool.pow(4,2));
        assertEquals(17,mathTool.toInteger("17"));
        assertEquals(18.1,mathTool.toDouble("18.1"));
    }

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        // pass a full field path to the get() method
        assertEquals(Long.MIN_VALUE, fieldTool.get("java.lang.Long.MIN_VALUE"));
    }


    public @Test void testMathTool() {
        MathTool mathTool = (MathTool)toolbox.get("math");
        assertNotNull(mathTool);
        assertEquals(1,mathTool.abs(-1));
        assertEquals(2,mathTool.add(1,1));
        assertEquals(3,mathTool.ceil(2.5));
        assertEquals(4,mathTool.div(8,2));
        assertEquals(5,mathTool.floor(5.1));
        assertEquals(6,mathTool.getAverage(new long[] {5,6,7}));
        /* getTotal() watches the type of its first argument, so assertEquals needs a long */
        assertEquals((long)7,mathTool.getTotal(new long[] {2,2,3}));
        assertEquals(8,mathTool.idiv(130,16));
        assertEquals(9,mathTool.max(9,-10));
        assertEquals(10,mathTool.min(10,20));
        assertEquals(11,mathTool.mod(37,13));
        assertEquals(12,mathTool.mul(3,4));
        assertEquals(13,mathTool.round(12.8));
        assertEquals(14.2,mathTool.roundTo(1,14.18));
        assertEquals(-5.0,mathTool.roundTo(2,-4.999));
        assertEquals(15,mathTool.sub(30,15));
        assertEquals(16,mathTool.pow(4,2));
        assertEquals(17,mathTool.toInteger("17"));
        assertEquals(18.1,mathTool.toDouble("18.1"));
    }

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        /* xml */
        assertEquals("&quot;&amp;&lt;&gt;",escapeTool.html("\"&<>"));
    }


    public @Test void testMathTool() {
        MathTool mathTool = (MathTool)toolbox.get("math");
        assertNotNull(mathTool);
        assertEquals(1,mathTool.abs(-1));
        assertEquals(2,mathTool.add(1,1));
        assertEquals(3,mathTool.ceil(2.5));
        assertEquals(4,mathTool.div(8,2));
        assertEquals(5,mathTool.floor(5.1));
        assertEquals(6,mathTool.getAverage(new long[] {5,6,7}));
        /* getTotal() watches the type of its first argument, so assertEquals needs a long */
        assertEquals((long)7,mathTool.getTotal(new long[] {2,2,3}));
        assertEquals(8,mathTool.idiv(130,16));
        assertEquals(9,mathTool.max(9,-10));
        assertEquals(10,mathTool.min(10,20));
        assertEquals(11,mathTool.mod(37,13));
        assertEquals(12,mathTool.mul(3,4));
        assertEquals(13,mathTool.round(12.8));
        assertEquals(14.2,mathTool.roundTo(1,14.18));
        assertEquals(15,mathTool.sub(30,15));
        assertEquals(16,mathTool.pow(4,2));
        assertEquals(17,mathTool.toInteger("17"));
        assertEquals(18.1,mathTool.toDouble("18.1"));
    }

View Full Code Here

        /* xml */
        assertEquals("&quot;&amp;&lt;&gt;",escapeTool.html("\"&<>"));
    }


    public @Test void testMathTool() {
        MathTool mathTool = (MathTool)toolbox.get("math");
        assertNotNull(mathTool);
        assertEquals(1,mathTool.abs(-1));
        assertEquals(2,mathTool.add(1,1));
        assertEquals(3,mathTool.ceil(2.5));
        assertEquals(4,mathTool.div(8,2));
        assertEquals(5,mathTool.floor(5.1));
        assertEquals(6,mathTool.getAverage(new long[] {5,6,7}));
        /* getTotal() watches the type of its first argument, so assertEquals needs a long */
        assertEquals((long)7,mathTool.getTotal(new long[] {2,2,3}));
        assertEquals(8,mathTool.idiv(130,16));
        assertEquals(9,mathTool.max(9,-10));
        assertEquals(10,mathTool.min(10,20));
        assertEquals(11,mathTool.mod(37,13));
        assertEquals(12,mathTool.mul(3,4));
        assertEquals(13,mathTool.round(12.8));
        assertEquals(14.2,mathTool.roundTo(1,14.18));
        assertEquals(-5.0,mathTool.roundTo(2,-4.999));
        assertEquals(15,mathTool.sub(30,15));
        assertEquals(16,mathTool.pow(4,2));
        assertEquals(17,mathTool.toInteger("17"));
        assertEquals(18.1,mathTool.toDouble("18.1"));
    }

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        // pass a full field path to the get() method
        assertEquals(Long.MIN_VALUE, fieldTool.get("java.lang.Long.MIN_VALUE"));
    }


    public @Test void testMathTool() {
        MathTool mathTool = (MathTool)toolbox.get("math");
        assertNotNull(mathTool);
        assertEquals(1,mathTool.abs(-1));
        assertEquals(2,mathTool.add(1,1));
        assertEquals(3,mathTool.ceil(2.5));
        assertEquals(4,mathTool.div(8,2));
        assertEquals(5,mathTool.floor(5.1));
        assertEquals(6,mathTool.getAverage(new long[] {5,6,7}));
        /* getTotal() watches the type of its first argument, so assertEquals needs a long */
        assertEquals((long)7,mathTool.getTotal(new long[] {2,2,3}));
        assertEquals(8,mathTool.idiv(130,16));
        assertEquals(9,mathTool.max(9,-10));
        assertEquals(10,mathTool.min(10,20));
        assertEquals(11,mathTool.mod(37,13));
        assertEquals(12,mathTool.mul(3,4));
        assertEquals(13,mathTool.round(12.8));
        assertEquals(14.2,mathTool.roundTo(1,14.18));
        assertEquals(-5.0,mathTool.roundTo(2,-4.999));
        assertEquals(15,mathTool.sub(30,15));
        assertEquals(16,mathTool.pow(4,2));
        assertEquals(17,mathTool.toInteger("17"));
        assertEquals(18.1,mathTool.toDouble("18.1"));
    }

View Full Code Here

        // pass a full field path to the get() method
        assertEquals(Long.MIN_VALUE, fieldTool.get("java.lang.Long.MIN_VALUE"));
    }


    public @Test void testMathTool() {
        MathTool mathTool = (MathTool)toolbox.get("math");
        assertNotNull(mathTool);
        assertEquals(1,mathTool.abs(-1));
        assertEquals(2,mathTool.add(1,1));
        assertEquals(3,mathTool.ceil(2.5));
        assertEquals(4,mathTool.div(8,2));
        assertEquals(5,mathTool.floor(5.1));
        assertEquals(6,mathTool.getAverage(new long[] {5,6,7}));
        /* getTotal() watches the type of its first argument, so assertEquals needs a long */
        assertEquals((long)7,mathTool.getTotal(new long[] {2,2,3}));
        assertEquals(8,mathTool.idiv(130,16));
        assertEquals(9,mathTool.max(9,-10));
        assertEquals(10,mathTool.min(10,20));
        assertEquals(11,mathTool.mod(37,13));
        assertEquals(12,mathTool.mul(3,4));
        assertEquals(13,mathTool.round(12.8));
        assertEquals(14.2,mathTool.roundTo(1,14.18));
        assertEquals(-5.0,mathTool.roundTo(2,-4.999));
        assertEquals(15,mathTool.sub(30,15));
        assertEquals(16,mathTool.pow(4,2));
        assertEquals(17,mathTool.toInteger("17"));
        assertEquals(18.1,mathTool.toDouble("18.1"));
    }

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    Velocity.setProperty("file.resource.loader.cache", false);
    Velocity.init();
    tmp = Velocity.getTemplate(xml.getName(),"UTF-8");
    context.put("convert", new ConversionTool());
    context.put("dateTool", new DateTool());
    context.put("mathTool", new MathTool());
    context.put("numberTool", new NumberTool());
    context.put("Math", new myMath());
  }

View Full Code Here

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