Example usage for javax.xml.xpath XPathFunction XPathFunction

Introduction

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

Prototype

XPathFunction

Source Link

Usage

From source file:org.apache.camel.builder.xml.XPathBuilder.java

public XPathFunction getBodyFunction() {
    if (bodyFunction == null) {
        bodyFunction = new XPathFunction() {
            public Object evaluate(List list) throws XPathFunctionException {
                if (exchange == null) {
                    return null;
                }//www  . j  a  v a 2 s . c  o  m
                return exchange.get().getIn().getBody();
            }
        };
    }
    return bodyFunction;
}

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From source file:org.apache.camel.builder.xml.XPathBuilder.java

public XPathFunction getHeaderFunction() {
    if (headerFunction == null) {
        headerFunction = new XPathFunction() {
            public Object evaluate(List list) throws XPathFunctionException {
                if (exchange != null && !list.isEmpty()) {
                    Object value = list.get(0);
                    if (value != null) {
                        String text = exchange.get().getContext().getTypeConverter().convertTo(String.class,
                                value);/*w  ww .ja  v a2 s. co  m*/
                        return exchange.get().getIn().getHeader(text);
                    }
                }
                return null;
            }
        };
    }
    return headerFunction;
}

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From source file:org.apache.camel.builder.xml.XPathBuilder.java

public XPathFunction getOutBodyFunction() {
    if (outBodyFunction == null) {
        outBodyFunction = new XPathFunction() {
            public Object evaluate(List list) throws XPathFunctionException {
                if (exchange.get() != null && exchange.get().hasOut()) {
                    return exchange.get().getOut().getBody();
                }/*from  w w w  .ja  va 2  s.  c  o  m*/
                return null;
            }
        };
    }
    return outBodyFunction;
}

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From source file:org.apache.camel.builder.xml.XPathBuilder.java

public XPathFunction getOutHeaderFunction() {
    if (outHeaderFunction == null) {
        outHeaderFunction = new XPathFunction() {
            public Object evaluate(List list) throws XPathFunctionException {
                if (exchange.get() != null && !list.isEmpty()) {
                    Object value = list.get(0);
                    if (value != null) {
                        String text = exchange.get().getContext().getTypeConverter().convertTo(String.class,
                                value);//  w  w w .java2s. c o  m
                        return exchange.get().getOut().getHeader(text);
                    }
                }
                return null;
            }
        };
    }
    return outHeaderFunction;
}

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From source file:org.apache.camel.builder.xml.XPathBuilder.java

public XPathFunction getPropertiesFunction() {
    if (propertiesFunction == null) {
        propertiesFunction = new XPathFunction() {
            public Object evaluate(List list) throws XPathFunctionException {
                if (exchange != null && !list.isEmpty()) {
                    Object value = list.get(0);
                    if (value != null) {
                        String text = exchange.get().getContext().getTypeConverter().convertTo(String.class,
                                value);/*from   www  .  jav  a2  s  .  com*/
                        try {
                            // use the property placeholder resolver to lookup the property for us
                            Object answer = exchange.get().getContext()
                                    .resolvePropertyPlaceholders("{{" + text + "}}");
                            return answer;
                        } catch (Exception e) {
                            throw new XPathFunctionException(e);
                        }
                    }
                }
                return null;
            }
        };
    }
    return propertiesFunction;
}

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From source file:org.apache.camel.builder.xml.XPathBuilder.java

public XPathFunction getSimpleFunction() {
    if (simpleFunction == null) {
        simpleFunction = new XPathFunction() {
            public Object evaluate(List list) throws XPathFunctionException {
                if (exchange != null && !list.isEmpty()) {
                    Object value = list.get(0);
                    if (value != null) {
                        String text = exchange.get().getContext().getTypeConverter().convertTo(String.class,
                                value);//  w w w  . ja  va 2 s.  c o m
                        Language simple = exchange.get().getContext().resolveLanguage("simple");
                        Expression exp = simple.createExpression(text);
                        Object answer = exp.evaluate(exchange.get(), Object.class);
                        return answer;
                    }
                }
                return null;
            }
        };
    }
    return simpleFunction;
}

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From source file:org.kuali.rice.kew.rule.xmlrouting.WorkflowFunctionResolver.java

public XPathFunction resolveFunction(QName fname, int arity) {
    if (fname == null) {
        throw new NullPointerException("The function name cannot be null.");
    }/*from w w  w. java  2  s. c  o m*/
    if (fname.equals(new QName("http://nothingfornowwf.com", "ruledata", "wf"))) {
        if (ruleExtensions == null) {
            throw new IllegalArgumentException("There are no rule extensions.");
        }
        return new XPathFunction() {
            public Object evaluate(List args) {
                if (args.size() == 1) {
                    String name = (String) args.get(0);
                    for (RuleExtension ruleExtension : ruleExtensions) {
                        for (Map.Entry<String, String> entry : ruleExtension.getExtensionValuesMap()
                                .entrySet()) {
                            if (entry.getKey().equals(name)) {
                                return entry.getValue();
                            }
                        }
                    }
                }
                return "";
            }
        };
    } else if (fname.equals(new QName("http://nothingfornowwf.com", "xstreamsafe", "wf"))) {
        return new XStreamSafeSearchFunction(rootNode, this.getXpath());
    } else if (fname.equals(new QName("http://nothingfornowwf.com", "upper-case", "wf"))) {
        return new UpperCaseFunction();
    } else if (fname.equals(new QName("http://nothingfornowwf.com", "field", "wf"))) {
        return new XPathFunction() {
            public Object evaluate(java.util.List args) {
                if (args.size() == 1) {
                    String name = (String) args.get(0);
                    try {
                        return field(name);
                    } catch (Exception e) {
                        throw new WorkflowRuntimeException("Failed to find field to validate.", e);
                    }
                }
                return "";
            }
        };
    } else if (fname.equals(new QName("http://nothingfornowwf.com", "empty", "wf"))) {
        return new XPathFunction() {
            public Object evaluate(java.util.List args) {
                return empty(args.get(0));
            }
        };
    } else {
        return null;
    }
}

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