Example usage for org.apache.commons.digester.substitution VariableSubstitutor VariableSubstitutor

Introduction

In this page you can find the example usage for org.apache.commons.digester.substitution VariableSubstitutor VariableSubstitutor.

Prototype

public VariableSubstitutor(VariableExpander expander)

Source Link

Document

Constructs a Substitutor which uses the same VariableExpander for both body text and attibutes.

Usage

From source file:com.discursive.jccook.xml.bean.VariableSubExample.java

public void testDigest() throws Exception {

    List emails = new ArrayList();

    Map vars = new HashMap();
    vars.put("email.to", "tobrien@discursive.com");
    vars.put("user.name", "Tim");
    vars.put("order.id", "1RR2E223WVVS");
    vars.put("product.name", "Foundation");

    MultiVariableExpander expander = new MultiVariableExpander();
    expander.addSource("$", vars);

    Substitutor substitutor = new VariableSubstitutor(expander);

    InputStream input = getClass().getResourceAsStream("./email.xml");

    URL rules = getClass().getResource("./email-rules.xml");
    Digester digester = DigesterLoader.createDigester(rules);
    digester.setSubstitutor(substitutor);
    digester.push(emails);/*  w  w  w.  ja  v  a2  s  .  c  o  m*/

    digester.parse(input);

    System.out.println("Resulting Email: " + emails.get(0));

}

From source file:com.germinus.easyconf.ConfigurationLoader.java

/**
 * Read an XML file and return an Object representation of its contents
 *//*from   w w  w.ja  v a 2 s  . co m*/
Object loadXMLFile(URL confFileUrl, ComponentProperties properties) throws IOException, SAXException {
    log.debug("Loading XML file: " + confFileUrl);
    String componentName = properties.getComponentName();
    String rulesFileName = componentName + Conventions.DIGESTERRULES_EXTENSION;
    URL digesterRulesUrl = ClasspathUtil.locateResource(rulesFileName);
    if (digesterRulesUrl == null) {
        throw new DigesterRulesNotFoundException(componentName, rulesFileName);
    }
    Digester digester = DigesterLoader.createDigester(digesterRulesUrl);
    digester.setUseContextClassLoader(true);
    digester.setValidating(false);

    MultiVariableExpander expander = new MultiVariableExpander();
    expander.addSource("$", properties.toMap());
    Substitutor substitutor = new VariableSubstitutor(expander);
    digester.setSubstitutor(substitutor);

    try {
        Object confObj = digester.parse(confFileUrl.openStream());
        log.info("Read configuration from " + confFileUrl);
        return confObj;
    } catch (IllegalArgumentException e) {
        //FIXME: it does not catch the exception
        throw new InvalidPropertyException(properties.getComponentName(), e);
    }
}

From source file:org.dawb.passerelle.common.parameter.ParameterUtils.java

/**
 * substutes variables in the string as determined from the actor.
 * /*from   ww w .  ja v a  2 s .  c  om*/
 * @param filePath
 * @param dataExportTransformer
 * @throws Exception 
 */
public static String substitute(String stringValue, final NamedObj actor) throws Exception {

    final Map<String, Object> variables = new HashMap<String, Object>(3);
    if (actor != null) {
        if (ModelUtils.getProject(actor) != null) {
            variables.put("project_name", ModelUtils.getProject(actor).getName());
        }
        variables.put("actor_name", actor.getName());
    }

    MultiVariableExpander expander = new MultiVariableExpander();
    expander.addSource("$", variables);
    // Create a substitutor with the expander
    VariableSubstitutor substitutor = new VariableSubstitutor(expander);

    // Commented out while waiting for a fix
    //      try {
    //         VariablesPlugin.getDefault().getStringVariableManager().validateStringVariables(stringValue);
    //          stringValue = VariablesPlugin.getDefault().getStringVariableManager().performStringSubstitution(stringValue, false);
    //      } catch (Throwable ignored) {
    //         // We just try any eclipse vars
    //      }
    return substitutor.substitute(stringValue);
}

From source file:org.dawb.passerelle.common.utils.SubstituteUtils.java

public static final String substitute(final String expand, final Map<String, String> variables) {

    if (variables == null)
        return expand;

    // Create an expander with the Map that matches ${var}
    MultiVariableExpander expander = new MultiVariableExpander();
    expander.addSource("$", variables);
    // Create a substitutor with the expander
    VariableSubstitutor substitutor = new VariableSubstitutor(expander);

    String value = substitutor.substitute(expand);
    return value;

}

From source file:org.dawb.passerelle.common.utils.XMLUtils.java

public static Map<String, String> getVariables(final Map<?, ?> variables, final String xmlSource,
        final Map<String, String> scalarSource) throws Exception {

    DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
    docFactory.setNamespaceAware(false); // never forget this!
    docFactory.setValidating(false);/* w  w  w  .  ja v a  2 s  . c  o  m*/
    DocumentBuilder builder = docFactory.newDocumentBuilder();
    Document doc = null;

    XPathFactory factory = XPathFactory.newInstance();
    XPath xpath = factory.newXPath();

    final Map<String, String> values = new HashMap<String, String>(variables.size());
    for (Object varName : variables.keySet()) {
        final String varValue = (String) variables.get(varName.toString());
        if (varValue == null || "".equals(varValue)) {
            values.put(varName.toString(), scalarSource.get(varName));
            continue;
        }

        if ("/".equals(varValue)) {
            values.put(varName.toString(), xmlSource);
            continue;
        }

        final XPathExpression exp = xpath.compile(varValue);
        if (doc == null)
            doc = builder.parse(new InputSource(new StringReader(xmlSource)));

        final NodeList nodeList = (NodeList) exp.evaluate(doc, XPathConstants.NODESET);
        values.put(varName.toString(), getNodeValue(nodeList));
    }

    // We allow names of variables to expand values of other variables.
    final Map<String, String> all = new HashMap<String, String>(values.size());
    all.putAll(scalarSource);
    all.putAll(values);

    final Map<String, String> ret = new HashMap<String, String>(variables.size());
    final MultiVariableExpander expander = new MultiVariableExpander();
    expander.addSource("$", all);

    // Create a substitutor with the expander
    final VariableSubstitutor substitutor = new VariableSubstitutor(expander);

    for (final String varName : values.keySet()) {

        if (!varName.contains("$")) {
            ret.put(varName, values.get(varName));
        } else {
            ret.put(substitutor.substitute(varName), values.get(varName));
        }
    }

    return ret;
}