Examples of com.bazaarvoice.jolt.traversr.Traversr

com.bazaarvoice.jolt.traversr.Traversr
Traversr allows you to walk JSON tree structures of data, and to GET and SET operations. Corner cases that arise during tree walk, are handled by subclasses. Ex: If no data exists mid tree walk quit or insert a new container? Or if there is data but it is the wrong type : overwrite or skip? Traversr analyzes the path path to be traversed and creates a "linked list" of Traversal objects. Then that list of Traversals can be used many times to write data into different JSON tree structures with different key values. For example given a Shiftr output path of : "tuna[&1].bob.&3[]" some of the keys are known, "tuna" and "bob", but other keys will only be known later. However, the structure of the output path will not change, which means we can do some work before the keys are known. First the output path is turned into its canonical form : "tuna.[4].[&1].bob.&3.[]". Then, a series of Traversals is created. tuna -> MapTraversal [&1] -> ArrayTraversal bob -> MapTraversal &3 -> MapTraversal [] -> AutoExpandArrayTraversal Later, a list of keys can then be provided, such as [ "tuna", "2", "bob", "smith", "[]" ], and they can be quickly used without having to build or parse any more objects. The list of keys are all Strings, which ArrayTraversals will convert to Integers as needed.

        if ( dotNotation.contains("*") || dotNotation.contains("$")) {
            throw new SpecException("DotNotation (write key) can not contain '*' or '$'.");
        }


        List<PathElement> paths;
        Traversr trav;


        if ( StringTools.isNotBlank( dotNotation ) ) {


            // Compute the path elements.
            paths = ShiftrSpec.parseDotNotationRHS( dotNotation );

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    @Test(dataProvider = "inAndOutTestCases")
    public void setTest(String testCaseName, List<String> outputs, Object notUsedInThisTest, String traversrPath, List<String> keys, Map<String, Object> expected) throws Exception
    {
        Map<String, Object> actual = new HashMap<String, Object>();


        Traversr traversr = new ShiftrTraversr( traversrPath );
        for ( String output : outputs ) {
            traversr.set( actual, keys, output );
        }


        JoltTestUtil.runDiffy( testCaseName, expected, actual );
    }

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    }


    @Test(dataProvider = "inAndOutTestCases")
    public void getTest(String testCaseName, List<String> notUsedInThisTest, Object expected, String traversrPath, List<String> keys, Map<String, Object> tree) throws Exception
    {
        Traversr traversr = new ShiftrTraversr( traversrPath  );
        Object actual = traversr.get( tree, keys);


        JoltTestUtil.runDiffy( testCaseName, expected, actual );
    }

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        if ( dotNotation.contains("@") || dotNotation.contains("*") || dotNotation.contains("$")) {
            throw new SpecException("DotNotation (write key) can not contain '@', '*', or '$'.");
        }


        List<PathElement> paths;
        Traversr trav;


        if ( StringUtils.isNotBlank( dotNotation ) ) {
            String[] split = dotNotation.split( "\\." );


            paths = ShiftrSpec.parse( split );

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        if ( dotNotation.contains("@") || dotNotation.contains("*") || dotNotation.contains("$")) {
            throw new SpecException("DotNotation (write key) can not contain '@', '*', or '$'.");
        }


        List<PathElement> paths;
        Traversr trav;


        if ( StringUtils.isNotBlank( dotNotation ) ) {
            String[] split = dotNotation.split( "\\." );


            paths = ShiftrSpec.parse( split );

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        if ( dotNotation.contains("@") || dotNotation.contains("*") || dotNotation.contains("$")) {
            throw new SpecException("DotNotation (write key) can not contain '@', '*', or '$'.");
        }


        List<PathElement> paths;
        Traversr trav;


        if ( StringTools.isNotBlank(dotNotation) ) {
            String[] split = dotNotation.split( "\\." );


            paths = ShiftrSpec.parse( split );

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Related Classes of com.bazaarvoice.jolt.traversr.Traversr

com.bazaarvoice.jolt.shiftr.PathEvaluatingTraversal

com.bazaarvoice.jolt.shiftr.ShiftrTraversrTest

com.bazaarvoice.jolt.shiftr.ShiftrWriter

com.bazaarvoice.jolt.traversr.traversal.ArrayTraversalStep

com.bazaarvoice.jolt.traversr.traversal.AutoExpandArrayTraversalStep

com.bazaarvoice.jolt.traversr.traversal.MapTraversalStep

com.bazaarvoice.jolt.traversr.traversal.TraversalStep

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