Examples of org.apache.commons.digester3.Substitutor

org.apache.commons.digester3.substitution.VariableSubstitutor

(Logical) Interface for substitution strategies. (It happens to be implemented as a Java abstract class to allow future additions to be made without breaking backwards compatibility.)

Usage: When {@link Digester#setSubstitutor} is set, Digester calls the methods in this interface tocreate substitute values which will be passed into the Rule implementations. Of course, it is perfectly acceptable for implementations not to make substitutions and simply return the inputs.

Different strategies are supported for attributes and body text.
@since 1.6

     */
    private Digester createDigesterThatCanDoAnt()
    {
        Digester digester = new Digester();


        MultiVariableExpander expander = new MultiVariableExpander();
        expander.addSource( "$", mutableSource );
        digester.setSubstitutor( new VariableSubstitutor( expander ) );


        int useRootObj = -1;
        Class<?>[] callerArgTypes = new Class[] { String.class, String.class };
        CallMethodRule caller = new CallMethodRule( useRootObj, "addProperty", callerArgTypes.length, callerArgTypes );

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        String xml = "<root alpha='${attr1}' beta='var{attr2}'/>";
        StringReader input = new StringReader( xml );
        Digester digester = new Digester();


        // Configure the digester as required
        MultiVariableExpander expander = new MultiVariableExpander();
        digester.setSubstitutor( new VariableSubstitutor( expander ) );
        digester.addObjectCreate( "root", SimpleTestBean.class );
        digester.addSetProperties( "root" );


        // Parse our test input.

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        HashMap<String, Object> source2 = new HashMap<String, Object>();
        source2.put( "attr1", "source2.attr1" ); // should not be used
        source2.put( "attr2", "source2.attr2" );


        MultiVariableExpander expander = new MultiVariableExpander();
        expander.addSource( "$", source1 );
        expander.addSource( "var", source2 );


        digester.setSubstitutor( new VariableSubstitutor( expander ) );
        digester.addObjectCreate( "root/bean", SimpleTestBean.class );
        digester.addSetProperties( "root/bean" );
        digester.addSetNext( "root/bean", "addSimpleTestBean" );

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        HashMap<String, Object> verbs = new HashMap<String, Object>();
        verbs.put( "1", "gyre" );
        verbs.put( "2", "gimble" );


        MultiVariableExpander expander = new MultiVariableExpander();
        expander.addSource( "noun", nouns );
        expander.addSource( "verb", verbs );
        digester.setSubstitutor( new VariableSubstitutor( expander ) );


        digester.addObjectCreate( "root", SimpleTestBean.class );
        digester.addCallMethod( "root", "setAlpha", 0 );

View Full Code Here

        String xml = "<root alpha='${attr1}'/>";
        StringReader input = new StringReader( xml );
        Digester digester = new Digester();


        // Configure the digester as required
        MultiVariableExpander expander = new MultiVariableExpander();
        expander.addSource( "$", new HashMap<String, Object>() );
        digester.setSubstitutor( new VariableSubstitutor( expander ) );


        digester.addObjectCreate( "root", SimpleTestBean.class );
        digester.addSetProperties( "root" );

View Full Code Here

    {
        Digester digester = new Digester();


        MultiVariableExpander expander = new MultiVariableExpander();
        expander.addSource( "$", mutableSource );
        digester.setSubstitutor( new VariableSubstitutor( expander ) );


        int useRootObj = -1;
        Class<?>[] callerArgTypes = new Class[] { String.class, String.class };
        CallMethodRule caller = new CallMethodRule( useRootObj, "addProperty", callerArgTypes.length, callerArgTypes );
        digester.addRule( "root/property", caller );

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        StringReader input = new StringReader( xml );
        Digester digester = new Digester();


        // Configure the digester as required
        MultiVariableExpander expander = new MultiVariableExpander();
        digester.setSubstitutor( new VariableSubstitutor( expander ) );
        digester.addObjectCreate( "root", SimpleTestBean.class );
        digester.addSetProperties( "root" );


        // Parse our test input.
        SimpleTestBean root = digester.parse( input );

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        MultiVariableExpander expander = new MultiVariableExpander();
        expander.addSource( "$", source1 );
        expander.addSource( "var", source2 );


        digester.setSubstitutor( new VariableSubstitutor( expander ) );
        digester.addObjectCreate( "root/bean", SimpleTestBean.class );
        digester.addSetProperties( "root/bean" );
        digester.addSetNext( "root/bean", "addSimpleTestBean" );


        // Parse our test input.

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        verbs.put( "2", "gimble" );


        MultiVariableExpander expander = new MultiVariableExpander();
        expander.addSource( "noun", nouns );
        expander.addSource( "verb", verbs );
        digester.setSubstitutor( new VariableSubstitutor( expander ) );


        digester.addObjectCreate( "root", SimpleTestBean.class );
        digester.addCallMethod( "root", "setAlpha", 0 );


        // Parse our test input.

View Full Code Here

        Digester digester = new Digester();


        // Configure the digester as required
        MultiVariableExpander expander = new MultiVariableExpander();
        expander.addSource( "$", new HashMap<String, Object>() );
        digester.setSubstitutor( new VariableSubstitutor( expander ) );


        digester.addObjectCreate( "root", SimpleTestBean.class );
        digester.addSetProperties( "root" );


        // Parse our test input.

View Full Code Here

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