Examples of org.apache.log4j.spi.ErrorItem

org.apache.log4j.spi.ErrorItem
Used to store special log4j errors which cannot be logged using internal logging. Such errors include thos occuring during the initial phases of log4j configuration or errors emanating from core components such as Logger or Hierarchy. @author Ceki Gulcu

   * Dump any errors on System.out.
   */
  public void dumpErrors() {
    List errorList = getErrorList();
    for(int i = 0; i < errorList.size(); i++) {
      ErrorItem ei = (ErrorItem) errorList.get(i);
      ei.dump(System.out);
    }
  }

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    String value = attributes.getValue(VALUE_ATTRIBUTE);


    if (name == null) {
      inError = true;
      getLogger().error(NO_NAME);
      ec.addError(new ErrorItem(NO_NAME));
      return;
    }


    if (value == null) {
      inError = true;
      getLogger().error(NO_VALUE);
      ec.addError(new ErrorItem(NO_VALUE));
      return;
    }


    // remove both leading and trailing spaces
    value = value.trim();

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    Object o = ec.getObjectStack().get(0);
    if(o instanceof LoggerRepository) {
      return (LoggerRepository) o;
    } else {
      String errMsg = "There is no LoggerRepository at the top of the object stack.";
      ec.addError(new ErrorItem(errMsg));
      throw new IllegalStateException(errMsg);
    }
  }

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        if(getNamingContext() == null) {
            try {
                findNamingContext();
            } catch (Exception e) {
                getLogger().error("Couldn't find JNDI naming context: ", e);
                ec.addError(new ErrorItem("Couldn't find JNDI naming context.", e));
            }
        }


        String jndiName = attributes.getValue(JNDI_ATTR);
        
        if((jndiName == null) || (jndiName.trim().length() < 1)) {
            getLogger().warn("Missing {} attribute, ignoring.", JNDI_ATTR);
        } else if(getNamingContext() != null){ 
            Object value = null;


            try {
                value = getNamingContext().lookup(jndiName);
            } catch (Exception e) {
                getLogger().error("Error looking up " + jndiName + ": ", e);
                ec.addError(new ErrorItem("Error looking up " + jndiName, e));
            }


            if(value == null) {
                getLogger().warn("No JNDI value found for {}.", jndiName);
            } else if(! (value instanceof String)) {

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    if (Option.isEmpty(conversionWord)) {
      inError = true;
      errorMsg = "No 'conversionWord' attribute in <conversionRule>";
      getLogger().warn(errorMsg);
      ec.addError(new ErrorItem(errorMsg));


      return;
    }


    if (Option.isEmpty(converterClass)) {
      inError = true;
      errorMsg = "No 'converterClass' attribute in <conversionRule>";
      getLogger().warn(errorMsg);
      ec.addError(new ErrorItem(errorMsg));


      return;
    }


    try {
      getLogger().debug(
        "About to add conversion rule [{}, {}] to layout", conversionWord, converterClass);


      LoggerRepository repository = (LoggerRepository) ec.getObjectStack().get(0);


      Map ruleRegistry = (Map) repository.getObject(PatternLayout.PATTERN_RULE_REGISTRY);
      if(ruleRegistry == null) {
        ruleRegistry = new HashMap();
        repository.putObject(PatternLayout.PATTERN_RULE_REGISTRY, ruleRegistry);
      }
      // put the new rule into the rule registry
      ruleRegistry.put(conversionWord, converterClass);
  
    } catch (Exception oops) {
      inError = true;
      errorMsg = "Could not add conversion rule to PatternLayout.";
      getLogger().error(errorMsg, oops);
      ec.addError(new ErrorItem(errorMsg));
    }
  }

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    } catch (Exception oops) {
      inError = true;
      getLogger().error(
        "Could not create a plugin. Reported error follows.", oops);
      ec.addError(
        new ErrorItem(
          "Could not create plugin of type " + className + "]."));
    }
  }

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      props.load(istream);
      istream.close();
    } catch (IOException e) {
      String errMsg =
        "Could not read configuration file [" + configFileName + "].";
      addError(new ErrorItem(errMsg, e));
      getLogger(repo).error(errMsg, e);
      return;
    }


    // If we reach here, then the config file is alright.

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      props.load(in);
      in.close();
    } catch (java.io.IOException e) {
      String errMsg =
        "Could not read configuration file from URL [" + configURL + "].";
      addError(new ErrorItem(errMsg, e));
      getLogger(repository).error(errMsg, e);
      return;
    }


    doConfigure(props, repository);

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    try {
      props.load(configStream);
    } catch (java.io.IOException e) {
      String errMsg =
        "Could not read configuration file from input stream.";
      addError(new ErrorItem(errMsg, e));
      getLogger(repository).error(errMsg, e);
      return;
    }


    doConfigure(props, repository);

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        props, prefix, org.apache.log4j.Appender.class, null);


    if (appender == null) {
      String errMsg =
        "Could not instantiate appender named \"" + appenderName + "\".";
      addError(new ErrorItem(errMsg));
      getLogger(repository).error(errMsg);
      return null;
    }


    appender.setName(appenderName);

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