Example usage for javax.xml.xpath XPathFactoryConfigurationException getMessage

Introduction

In this page you can find the example usage for javax.xml.xpath XPathFactoryConfigurationException getMessage.

Prototype

public String getMessage() 

Source Link

Document

Returns the detail message string of this throwable.

Usage

From source file:org.wso2.carbon.humantask.core.engine.runtime.xpath.XPathExpressionRuntime.java

private Object evaluate(String exp, EvaluationContext evalCtx, QName type) {
    try {//  ww w. j  av  a  2  s .  co  m
        XPathFactory xpf = new XPathFactoryImpl();
        JaxpFunctionResolver funcResolve = new JaxpFunctionResolver(evalCtx);
        xpf.setXPathFunctionResolver(funcResolve);
        XPathEvaluator xpe = (XPathEvaluator) xpf.newXPath();
        xpe.setXPathFunctionResolver(funcResolve);
        xpe.setBackwardsCompatible(true);
        xpe.setNamespaceContext(evalCtx.getNameSpaceContextOfTask());
        XPathExpression xpathExpression = xpe.compile(exp);
        Node contextNode = evalCtx.getRootNode() == null ? DOMUtils.newDocument() : evalCtx.getRootNode();

        Object evalResult = xpathExpression.evaluate(contextNode, type);

        if (evalResult != null && log.isDebugEnabled()) {
            log.debug("Expression " + exp + " generate result " + evalResult + " - type="
                    + evalResult.getClass().getName());
            if (evalCtx.getRootNode() != null) {
                log.debug("Was using context node " + DOMUtils.domToString(evalCtx.getRootNode()));
            }
        }

        return evalResult;
    } catch (XPathFactoryConfigurationException e) {
        log.error("Exception occurred while creating XPathFactory.", e);
        throw new XPathProcessingException("Exception occurred while creating XPathFactory.", e);
    } catch (XPathExpressionException e) {
        String msg = "Error evaluating XPath expression: " + exp;
        log.error(msg, e);
        throw new XPathProcessingException(msg, e);
    } catch (ParserConfigurationException e) {
        String msg = "XML Parsing error.";
        log.error(msg, e);
        throw new XPathProcessingException(msg, e);
    } catch (Exception e) {
        log.error(e.getMessage(), e);
        throw new XPathProcessingException(e.getMessage(), e);
    }
}

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