Examples of org.apache.avalon.framework.parameters.Parameters

Package org.apache.avalon.framework.parameters

Examples of org.apache.avalon.framework.parameters.Parameters

org.apache.avalon.framework.parameters.Parameters
The Parameters class represents a set of key-value pairs.
The Parameters object provides a mechanism to obtain values based on a String name. There are convenience methods that allow you to use defaults if the value does not exist, as well as obtain the value in any of the same formats that are in the {@link Configuration} interface.
While there are similarities between the Parameters object and the java.util.Properties object, there are some important semantic differences. First, Parameters are read-only. Second, Parameters are easily derived from {@link Configuration} objects. Lastly, theParameters object is derived from XML fragments that look like this:
```
 <parameter name="param-name" value="param-value" /> 
```
Note: this class is not thread safe by default. If you require thread safety please synchronize write access to this class to prevent potential data corruption.
@author Avalon Development Team @version CVS $Revision: 1.41 $ $Date: 2004/02/11 14:34:25 $

   * or an association list
   * @return an Avalon <code>Parameters</code> instance
   */
  static public Parameters getParameters(Value sparams)
  {
    Parameters params = emptyParam;


    if (!sparams.eq(FALSE)) {
      params = new Parameters();
      Pair sparamValues = pair(pair(sparams).cdr);
      while (sparamValues != EMPTYLIST) {
        Pair entry = pair(sparamValues.car);
        String name = string(entry.car);
        String value = string(entry.cdr);
        params.setParameter(name, value);
        sparamValues = pair(sparamValues.cdr);
      }
    }


    return params;

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      throw new RuntimeException("No 'src' attribute specified for 'generate'!");
    String src = string(pair(ssrc).cdr);


    // Obtain the parameters
    Value sparams = assq(sargs, Symbol.get("params"));
    Parameters params = getParameters(sparams);


    //     System.out.println("generate type " + type + ", src " + src
    //                        + " params " + params);
    
    eventPipeline.setGenerator(type, src, params);

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    else
      type = sitemap.getDefaultReaderType();


    // Obtain the parameters
    Value sparams = assq(sargs, Symbol.get("params"));
    Parameters params = getParameters(sparams);


    pipeline.setReader(type, src, params, mimeType);


    return new J2S.JavaObject(pipeline);
  }

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    else
      type = sitemap.getDefaultTransformerType();


    // Obtain the parameters
    Value sparams = assq(sargs, Symbol.get("params"));
    Parameters params = getParameters(sparams);


//     System.out.println("transform type " + type + ", src " + src
//                        + " params " + params);
    
    eventPipeline.addTransformer(type, src, params);

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    if (!smimeType.eq(FALSE))
      mimeType = string(pair(smimeType).cdr);


    // Obtain the parameters
    Value sparams = assq(sargs, Symbol.get("params"));
    Parameters params = getParameters(sparams);


//     System.out.println("serialize type " + type
//                        + " params " + params + " mime-type " + mimeType);
    
    pipeline.setSerializer(type, null, params, mimeType);

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        Map               objectModel    = env.getObjectModel();
        SitemapRedirector redirector     = PipelinesNode.getRedirector(env);
        SourceResolver    resolver       = getSourceResolver(objectModel);
        List              mapStack       = context.getMapStack();
        String            resolvedSource = source.resolve(mapStack);
        Parameters        resolvedParams = MapStackResolver.buildParameters(this.parameters, mapStack);


        Map actionResult;


        // If action is ThreadSafe, avoid select() and try/catch block (faster !)
        if (this.threadSafeAction != null) {

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        List mapStack = context.getMapStack();


        String resolvedPattern = pattern.resolve(mapStack);
        Map objectModel = env.getObjectModel();
        Parameters resolvedParams = MapStackResolver.buildParameters(this.parameters, mapStack);


        Map result = null;


        if (this.threadSafeMatcher != null) {
            // Avoid select() and try/catch block (faster !)

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      throws Exception {


        // Prepare data needed by the action
        Map objectModel = env.getObjectModel();
        List mapStack   = context.getMapStack();
        Parameters resolvedParams = MapStackResolver.buildParameters(this.parameters, mapStack);


        // If selector is ThreadSafe, avoid select() and try/catch block (faster !)
        if (this.threadSafeSelector != null) {


            for (int i = 0; i < this.whenTests.length; i++) {

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        protected HashMap outParametersNames = null;


        protected Query( SQLTransformer transformer, int query_index ) {
            this.transformer = transformer;
            this.query_index = query_index;
            this.properties = new Parameters();
            this.properties.merge( transformer.parameters );
        }

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     * Abstract out the Logicsheet creation.  Handles both Named and regular logicsheets.
     */
    private Logicsheet createLogicsheet(Configuration configuration, boolean named)
            throws Exception
    {
        Parameters params = Parameters.fromConfiguration(configuration);


        Logicsheet logicsheet;
        if (named) {
            String location = params.getParameter("href", null);
            String uri = params.getParameter("uri", null);
            String prefix = params.getParameter("prefix", null);


            NamedLogicsheet namedLogicsheet =
                new NamedLogicsheet(location, manager, urlResolver);
            namedLogicsheet.setLogger(getLogger());
            namedLogicsheet.setURI(uri);
            namedLogicsheet.setPrefix(prefix);
            logicsheet = namedLogicsheet;
        } else {
            String location = params.getParameter("core-logicsheet", null);
            logicsheet = new Logicsheet(location, manager, urlResolver);
            logicsheet.setLogger(getLogger());
        }


        String logicsheetName = logicsheet.getSystemId();

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