Examples of ch.qos.logback.core.joran.spi.Interpreter

ch.qos.logback.core.joran.spi.Interpreter

Interpreter is Joran's main driving class. It extends SAX {@link org.xml.sax.helpers.DefaultHandler DefaultHandler} which invokesvarious {@link Action actions} according to predefined patterns.

Patterns are kept in a {@link RuleStore} which is programmed to store andthen later produce the applicable actions for a given pattern.

The pattern corresponding to a top level <a> element is the string "a".

The pattern corresponding to an element <b> embedded within a top level <a> element is the string "a/b".

The pattern corresponding to an <b> and any level of nesting is "*/b. Thus, the * character placed at the beginning of a pattern serves as a wildcard for the level of nesting. Conceptually, this is very similar to the API of commons-digester. Joran offers several small advantages. First and foremost, it offers support for implicit actions which result in a significant leap in flexibility. Second, in our opinion better error reporting capability. Third, it is self-reliant. It does not depend on other APIs, in particular commons-logging which is too unreliable. Last but not least, Joran is quite tiny and is expected to remain so. @author Ceki Gülcuü

  }


  protected void buildInterpreter() {
    RuleStore rs = new SimpleRuleStore(context);
    addInstanceRules(rs);
    this.interpreter = new Interpreter(context, rs, initialPattern());
    InterpretationContext ec = interpreter.getInterpretationContext();
    ec.setContext(context);
    addImplicitRules(interpreter);
    addDefaultNestedComponentRegistryRules(ec.getDefaultNestedComponentRegistry());
  }

  public String toString() {
    return this.getClass().getName();
  }


  protected int getColumnNumber(InterpretationContext ec) {
    Interpreter jp = ec.getJoranInterpreter();
    Locator locator = jp.getLocator();
    if (locator != null) {
      return locator.getColumnNumber();
    }
    return -1;
  }

    }
    return -1;
  }


  protected int getLineNumber(InterpretationContext ec) {
    Interpreter jp = ec.getJoranInterpreter();
    Locator locator = jp.getLocator();
    if (locator != null) {
      return locator.getLineNumber();
    }
    return -1;
  }

Examples of ch.qos.logback.core.joran.spi.Interpreter

Related Classes of ch.qos.logback.core.joran.spi.Interpreter