Examples of SynapseXPath

org.apache.synapse.util.xpath.SynapseXPath

XPath that has been used inside Synapse xpath processing. This has a extension function named get-property which is use to retrieve message context properties with the given name from the function

For example the following function get-property('prop') can be evaluatedd using an XPath to retrieve the message context property value with the name prop.

Apart from that this XPath has a certain set of XPath variables associated with it. They are as follows;

body

The SOAP 1.1 or 1.2 body element.

header

The SOAP 1.1 or 1.2 header element.

Also there are some XPath prefixes defined in SynapseXPath to access various properties using XPath variables, where the variable name represents the particular prefix and the property name as the local part of the variable. Those variables are;

ctx

Prefix for Synapse MessageContext properties

axis2

Prefix for Axis2 MessageContext properties

trp

Prefix for the transport headers

This XPath is Thread Safe, and provides a special set of evaluate functions for the MessageContext and SOAPEnvelope as well as a method to retrieve string values of the evaluated XPaths
@see org.apache.axiom.om.xpath.AXIOMXPath @see #getContext(Object) @see org.apache.synapse.util.xpath.SynapseXPathFunctionContext @see org.apache.synapse.util.xpath.SynapseXPathVariableContext

Examples of org.apache.synapse.util.xpath.SynapseXPath


        // create a new filter mediator
        FilterMediator filter = new FilterMediator();


        // set source xpath condition to //symbol
        SynapseXPath source = new SynapseXPath("//wsx:symbol");
        source.addNamespace("wsx", "http://www.webserviceX.NET/");
        filter.setSource(source);


        // set regex to MSFT
        Pattern regex = Pattern.compile("MSFT");
        filter.setRegex(regex);

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Examples of org.apache.synapse.util.xpath.SynapseXPath


        // create a new filter mediator
        FilterMediator filter = new FilterMediator();


        // set source xpath condition to //symbol
        SynapseXPath source = new SynapseXPath("//wsx:symbol");
        source.addNamespace("wsx", "http://www.webserviceX.NET/");
        filter.setSource(source);


        // set regex to MSFT
        Pattern regex = Pattern.compile("MSFT");
        filter.setRegex(regex);

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Examples of org.apache.synapse.util.xpath.SynapseXPath


        // create a new switch mediator
        switchMediator = new SwitchMediator();


        // set xpath condition to select symbol
        SynapseXPath xpath = new SynapseXPath("//wsx:symbol");
        xpath.addNamespace("wsx", "http://www.webserviceX.NET/");
        switchMediator.setSource(xpath);
        SwitchCase caseOne = new SwitchCase();
        caseOne.setRegex(Pattern.compile("IBM"));
        AnonymousListMediator mediatorOne = new AnonymousListMediator();
        mediatorOne.addAll(Arrays.asList(new Mediator[] {ibmMediator}));

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Examples of org.apache.synapse.util.xpath.SynapseXPath

    /** Lock object to provide the synchronized access to the activeAggregates on checking */
    private final Object lock = new Object();


    public AggregateMediator() {
        try {
            aggregationExpression = new SynapseXPath("s11:Body/child::*[position()=1] | " +
                "s12:Body/child::*[position()=1]");
            aggregationExpression.addNamespace("s11", SOAP11Constants.SOAP_ENVELOPE_NAMESPACE_URI);
            aggregationExpression.addNamespace("s12", SOAP12Constants.SOAP_ENVELOPE_NAMESPACE_URI);
        } catch (JaxenException e) {
            if (log.isDebugEnabled()) {

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Examples of org.apache.synapse.util.xpath.SynapseXPath

        } else if (attachPath != null) {
            attachPathValue = attachPath.getAttributeValue();
        }
        
        try {
            SynapseXPath xp = new SynapseXPath(attachPathValue);
            OMElementUtils.addNameSpaces(xp, elem, log);
            mediator.setAttachPath(xp);
        } catch (JaxenException e) {
            handleException("Unable to build the IterateMediator. Invalid XPATH " +
                attachPathValue, e);

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Examples of org.apache.synapse.util.xpath.SynapseXPath

        OMElement pool;


        try {
            // get the 'pool' element and determine if we need to create a DataSource or
            // lookup using JNDI
            SynapseXPath xpath = new SynapseXPath("self::node()/syn:connection/syn:pool");
            xpath.addNamespace("syn", XMLConfigConstants.SYNAPSE_NAMESPACE);
            pool = (OMElement) xpath.selectSingleNode(elem);
            if (pool.getFirstChildWithName(DSNAME_Q) != null) {
                readLookupConfig(mediator, pool);
            } else if (pool.getFirstChildWithName(DRIVER_Q) != null) {
                readCustomDataSourceConfig(pool, mediator);
            } else {

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Examples of org.apache.synapse.util.xpath.SynapseXPath

                String xpath = getAttribute(paramElt, ATT_EXPRN);
                String value = getAttribute(paramElt, ATT_VALUE);


                if (xpath != null || value != null) {


                    SynapseXPath xp = null;
                    if (xpath != null) {
                        try {
                            xp = SynapseXPathFactory.getSynapseXPath(paramElt, ATT_EXPRN);


                        } catch (JaxenException e) {

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Examples of org.apache.synapse.util.xpath.SynapseXPath


        MessageContext synCtx = TestUtils.getTestContext("<empty/>");
        propMediator.mediate(synCtx);
        propMediatorTwo.mediate(synCtx);
        assertTrue(
            "value".equals((new SynapseXPath(
                "synapse:get-property('name')")).stringValueOf(synCtx)));
        assertTrue(
            "valueTwo".equals((new SynapseXPath(
                "synapse:get-property('nameTwo')")).stringValueOf(synCtx)));


        PropertyMediator propMediatorThree = new PropertyMediator();
        propMediatorThree.setName("name");
        propMediatorThree.setValue("value");
        propMediatorThree.setAction(PropertyMediator.ACTION_REMOVE);
        propMediatorThree.mediate(synCtx) ;
        assertNull((new SynapseXPath("synapse:get-property('name')")).stringValueOf(synCtx));
        assertTrue("valueTwo".equals((new SynapseXPath(
            "synapse:get-property('nameTwo')")).stringValueOf(synCtx)));
                
    }

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Examples of org.apache.synapse.util.xpath.SynapseXPath

        propMediatorOne.mediate(synCtx);
        Object prop = synCtx.getProperty("nameOne");
        assertEquals(valueOne, prop);


        // Test XML property retreival
        String exprValue = new SynapseXPath("synapse:get-property('nameOne')").stringValueOf(synCtx);
        assertEquals(xml, exprValue);


        // Test property removal
        propMediatorOne.setAction(PropertyMediator.ACTION_REMOVE);
        propMediatorOne.mediate(synCtx);
        assertNull(synCtx.getProperty("nameOne"));


        // Setting XML properties using expressions
        synCtx.setProperty("nameOne", xml);
        PropertyMediator propertyMediatorTwo = new PropertyMediator();
        propertyMediatorTwo.setName("nameTwo");
        propertyMediatorTwo.setExpression(new SynapseXPath("synapse:get-property('nameOne')"),
                XMLConfigConstants.DATA_TYPES.OM.name());
        propertyMediatorTwo.mediate(synCtx);
        Object exprProp = synCtx.getProperty("nameTwo");
        assertTrue(exprProp != null && exprProp instanceof OMElement);
    }

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Examples of org.apache.synapse.util.xpath.SynapseXPath

        MessageContext synCtx = TestUtils.getTestContext("<empty/>");
        propMediator.mediate(synCtx);


        // read property through a mediator property
        MediatorProperty medProp = new MediatorProperty();
        medProp.setExpression(new SynapseXPath("synapse:get-property('name')"));


        assertTrue(
            "value".equals(medProp.getEvaluatedExpression(synCtx)));
    }

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