Example usage for org.apache.commons.jxpath JXPathContext getNamespaceURI

Introduction

In this page you can find the example usage for org.apache.commons.jxpath JXPathContext getNamespaceURI.

Prototype

public String getNamespaceURI(String prefix) 

Source Link

Document

Given a prefix, returns a registered namespace URI.

Usage

From source file:org.xchain.javassist.SimpleCommand.java

public boolean execute(JXPathContext context) throws Exception {
    String testNamespace = context.getNamespaceURI("test");
    context.getVariables().declareVariable("namespace", testNamespace);
    return true;//  w w w. java2 s .  c o  m
}

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From source file:org.xchain.namespaces.jsl.AbstractTemplateCommand.java

/**
 * Uses the specified nameXPath and namespaceXPath to create a dynamic qName.
 *///from w ww.  j  a v a2s .  com
protected QName dynamicQName(JXPathContext context, String nameXPath, String namespaceXPath,
        boolean includeDefaultPrefix) throws SAXException {
    String name = (String) context.getValue(nameXPath, String.class);
    if (name == null) {
        throw new SAXException("QNames cannot have null names.");
    }
    String namespace = null;
    if (namespaceXPath != null) {
        namespace = (String) context.getValue(namespaceXPath, String.class);
        if (namespace == null) {
            throw new SAXException("Namespace uris cannot be null.");
        }
    }

    String[] parts = name.split(":", 2);
    String prefixPart = parts.length == 2 ? parts[0] : "";
    String localPart = parts.length == 2 ? parts[1] : parts[0];

    // if the prefix is not "", then it must be defined in the context.
    String prefixPartNamespace = (includeDefaultPrefix || !"".equals(prefixPart))
            ? context.getNamespaceURI(prefixPart)
            : "";
    if (!"".equals(prefixPart) && prefixPartNamespace == null) {
        throw new SAXException("The prefix '" + prefixPart + "' is not defined in the context.");
    }

    // ASSERT: if the prefix is not "", then it is defined in the context.

    // if the namespace is null, then the prefix defines the namespace.
    if (namespace == null) {
        return new QName(prefixPartNamespace != null ? prefixPartNamespace : "", localPart, prefixPart);
    }

    // ASSERT: the namespace was specified.

    // if the prefix is "", then we can lookup the proper namespace.
    if ("".equals(prefixPart)) {
        if (!namespace.equals(prefixPartNamespace)) {
            String namespacePrefix = ((ScopedJXPathContextImpl) context).getPrefix(namespace);
            if (namespacePrefix == null) {
                throw new SAXException("The namespace '" + namespace + "' is not bound to a prefix.");
            }
            if (!includeDefaultPrefix && "".equals(namespacePrefix)) {
                throw new SAXException("The namespace '" + namespace + "' cannot be used for the attribute '"
                        + name + "', because it maps to the default namespace.");
            }
            return new QName(namespace, localPart, namespacePrefix);
        } else {
            return new QName(namespace, localPart, prefixPart);
        }
    }

    // ASSERT: the prefix is defined and the namespace is defined, if they do not match, we must fail.
    if (!namespace.equals(prefixPartNamespace)) {
        throw new SAXException("The prefix '" + prefixPart + "' is bound to '" + prefixPartNamespace
                + "', but the namespace '" + namespace + "' is required.");
    }

    // ASSERT: the namespace and prefix will work together.
    return new QName(namespace, localPart, prefixPart);
}

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From source file:org.xchain.test.namespace.CopyNamespaceCommand.java

public boolean execute(JXPathContext context) throws Exception {
    ((ScopedQNameVariables) context.getVariables()).declareVariable(getVariable(context),
            context.getNamespaceURI(getPrefix(context)), Scope.request);
    return false;
}

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