Examples of org.apache.commons.chain.config.ConfigParser

org.apache.commons.chain.config.ConfigParser

Class to parse the contents of an XML configuration file (using Commons Digester) that defines and configures commands and command chains to be registered in a {@link Catalog}. Advanced users can configure the detailed parsing behavior by configuring the properties of an instance of this class prior to calling the parse() method. It is legal to call the parse() method more than once, in order to parse more than one configuration document.
@author Craig R. McClanahan @version $Revision: 1.4 $ $Date: 2004/10/18 01:07:41 $

                catalog = new CatalogBase();
            }
        }


        // Construct the configuration resource parser we will use
        ConfigParser parser = new ConfigParser();
        if (ruleSet != null) {
            try {
                ClassLoader loader =
                    Thread.currentThread().getContextClassLoader();
                if (loader == null) {
                    loader = this.getClass().getClassLoader();
                }
                Class clazz = loader.loadClass(ruleSet);
                parser.setRuleSet((RuleSet) clazz.newInstance());
            } catch (Exception e) {
                throw new RuntimeException("Exception initalizing RuleSet '"
                                           + ruleSet + "' instance: "
                                           + e.getMessage());
            }

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            if (value != null) {
                chainConfig = value;
            }


            ConfigParser parser = new ConfigParser();
            List urls = splitAndResolvePaths(chainConfig);
            URL resource;


            for (Iterator i = urls.iterator(); i.hasNext();) {
                resource = (URL) i.next();
                log.info("Loading chain catalog from " + resource);
                parser.parse(resource);
            }
        } catch (Exception e) {
            log.error("Exception loading resources", e);
            throw new ServletException(e);
        }

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   {
      ValueParam confFile = params.getValueParam("config-file");
      if (confFile != null)
      {
         String path = confFile.getValue();
         ConfigParser parser = new ConfigParser();
         // may work for StandaloneContainer
         ClassLoader cl = Thread.currentThread().getContextClassLoader();
         URL res = cl.getResource(path);
         // for PortalContainer
         if (res == null)
            res = configurationManager.getResource(path);
         if (res == null)
            throw new Exception("Resource not found " + path);
         log.info("Catalog configuration found at " + res);
         parser.parse(res);
      }


   }

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                catalog = new CatalogBase();
            }
        }


        // Construct the configuration resource parser we will use
        ConfigParser parser = new ConfigParser();
        if (ruleSet != null) {
            try {
                ClassLoader loader =
                    Thread.currentThread().getContextClassLoader();
                if (loader == null) {
                    loader = this.getClass().getClassLoader();
                }
                Class clazz = loader.loadClass(ruleSet);
                parser.setRuleSet((RuleSet) clazz.newInstance());
            } catch (Exception e) {
                throw new ServletException("Exception initalizing RuleSet '"
                                           + ruleSet + "' instance", e);
            }
        }

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                catalog = new CatalogBase();
            }
        }


        // Construct the configuration resource parser we will use
        ConfigParser parser = new ConfigParser();
        if (ruleSet != null) {
            try {
                ClassLoader loader =
                    Thread.currentThread().getContextClassLoader();
                if (loader == null) {
                    loader = this.getClass().getClassLoader();
                }
                Class clazz = loader.loadClass(ruleSet);
                parser.setRuleSet((RuleSet) clazz.newInstance());
            } catch (Exception e) {
                throw new RuntimeException("Exception initalizing RuleSet '"
                                           + ruleSet + "' instance: "
                                           + e.getMessage());
            }

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                                                     catalog);
        }


        // Add or replace chain definitions from the specified resource
        try {
            ConfigParser parser = new ConfigParser();
            URL configResource = null;
            if (path != null) {
                log.info("Loading context relative resources from '" +
                         path + "'");
                configResource =
                    servlet.getServletContext().getResource(path);
            } else if (resource != null) {
                log.info("Loading classloader resources from '" +
                         resource + "'");
                ClassLoader loader =
                    Thread.currentThread().getContextClassLoader();
                if (loader == null) {
                    loader = this.getClass().getClassLoader();
                }
                configResource = loader.getResource(resource);
            }
            parser.parse(catalog, configResource);
        } catch (Exception e) {
            log.error("Exception loading resources", e);
            throw new ServletException(e);
        }

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    public void init(ActionServlet servlet, ModuleConfig config)
        throws ServletException {


        // Parse the configuration file specified by path or resource
        try {
            ConfigParser parser = new ConfigParser();
            URL configResource = null;
            if (path != null) {
                log.info("Loading context relative resources from '" +
                         path + "'");
                configResource =
                    servlet.getServletContext().getResource(path);
            } else if (resource != null) {
                log.info("Loading classloader resources from '" +
                         resource + "'");
                ClassLoader loader =
                    Thread.currentThread().getContextClassLoader();
                if (loader == null) {
                    loader = this.getClass().getClassLoader();
                }
                configResource = loader.getResource(resource);
            }
            parser.parse(configResource);
        } catch (Exception e) {
            log.error("Exception loading resources", e);
            throw new ServletException(e);
        }

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      if (value != null) {
        chainConfig = value;
      }


      ConfigParser parser = new ConfigParser();
      List urls = splitAndResolvePaths(chainConfig);
      URL resource;


      for (Iterator i = urls.iterator(); i.hasNext();) {
        resource = (URL) i.next();
        log.info("Loading chain catalog from " + resource);
        parser.parse(resource);
      }
    } catch (Exception e) {
      log.error("Exception loading resources", e);
      throw new ServletException(e);
    }

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        // Look up the "shale" catalog, creating one if necessary
        Catalog catalog = CatalogFactory.getInstance().getCatalog(
                Globals.CLAY_CATALOG_NAME);
        if (catalog == null) {


            ConfigParser parser = new ConfigParser();
            URL url = this.getClass().getClassLoader().getResource(
                    Globals.CLAY_RESOURCE_NAME);
            if (url == null) {
                throw new IllegalArgumentException(Globals.CLAY_RESOURCE_NAME);
            }
            parser.parse(url);


            catalog = CatalogFactory.getInstance().getCatalog(
                    Globals.CLAY_CATALOG_NAME);


        }

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    protected static Catalog getCatalog() throws Exception {


        Catalog catalog = CatalogFactory.getInstance().getCatalog(Globals.BUILDER_CATALOG_NAME);
        if (catalog == null) {


            ConfigParser parser = new ConfigParser();
            URL url = parser.getClass().getClassLoader().getResource(Globals.BUILDER_RESOURCE_NAME);
            if (url == null) {
                throw new IllegalArgumentException(Globals.BUILDER_RESOURCE_NAME);
            }
            parser.parse(url);


            catalog = CatalogFactory.getInstance().getCatalog(Globals.BUILDER_CATALOG_NAME);


        }

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