Logback: the reliable, generic, fast and flexible logging framework.
Copyright (C) 1999-2015, QOS.ch. All rights reserved.
This program and the accompanying materials are dual-licensed under
either the terms of the Eclipse Public License v1.0 as published by
the Eclipse Foundation
  or (per the licensee's choosing)
under the terms of the GNU Lesser General Public License version 2.1
as published by the Free Software Foundation.
/**
 * Logback: the reliable, generic, fast and flexible logging framework.
 * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
 *
 * This program and the accompanying materials are dual-licensed under
 * either the terms of the Eclipse Public License v1.0 as published by
 * the Eclipse Foundation
 *
 *   or (per the licensee's choosing)
 *
 * under the terms of the GNU Lesser General Public License version 2.1
 * as published by the Free Software Foundation.
 */
package ch.qos.logback.core.sift;

import java.util.List;
import java.util.Map;

import ch.qos.logback.core.Appender;
import ch.qos.logback.core.CoreConstants;
import ch.qos.logback.core.joran.GenericConfigurator;
import ch.qos.logback.core.joran.action.*;
import ch.qos.logback.core.joran.event.SaxEvent;
import ch.qos.logback.core.joran.spi.ElementSelector;
import ch.qos.logback.core.joran.spi.Interpreter;
import ch.qos.logback.core.joran.spi.JoranException;
import ch.qos.logback.core.joran.spi.RuleStore;

public abstract class SiftingJoranConfiguratorBase<E> extends GenericConfigurator {

    protected final String key;
    protected final String value;
    // properties inherited from the main joran run
    protected final Map<String, String> parentPropertyMap;

    protected SiftingJoranConfiguratorBase(String key, String value, Map<String, String> parentPropertyMap) {
		this.key = key;
        this.value = value;
        this.parentPropertyMap = parentPropertyMap;
    }

    final static String ONE_AND_ONLY_ONE_URL = CoreConstants.CODES_URL + "#1andOnly1";

    @Override
    protected void addImplicitRules(Interpreter interpreter) {
        NestedComplexPropertyIA nestedComplexIA = new NestedComplexPropertyIA(getBeanDescriptionCache());
        nestedComplexIA.setContext(context);
        interpreter.addImplicitAction(nestedComplexIA);

        NestedBasicPropertyIA nestedSimpleIA = new NestedBasicPropertyIA(getBeanDescriptionCache());
        nestedSimpleIA.setContext(context);
        interpreter.addImplicitAction(nestedSimpleIA);
    }

    @Override
    protected void addInstanceRules(RuleStore rs) {
        rs.addRule(new ElementSelector("configuration/property"), new PropertyAction());
        rs.addRule(new ElementSelector("configuration/timestamp"), new TimestampAction());
        rs.addRule(new ElementSelector("configuration/define"), new DefinePropertyAction());
    }

    abstract public Appender<E> getAppender();

    int errorEmmissionCount = 0;

    protected void oneAndOnlyOneCheck(Map<?, ?> appenderMap) {
        String errMsg = null;
        if (appenderMap.size() == 0) {
            errorEmmissionCount++;
            errMsg = "No nested appenders found within the <sift> element in SiftingAppender.";
        } else if (appenderMap.size() > 1) {
            errorEmmissionCount++;
            errMsg = "Only and only one appender can be nested the <sift> element in SiftingAppender. See also " + ONE_AND_ONLY_ONE_URL;
        }

        if (errMsg != null && errorEmmissionCount < CoreConstants.MAX_ERROR_COUNT) {
            addError(errMsg);
        }
    }

    public void doConfigure(final List<SaxEvent> eventList) throws JoranException {
        super.doConfigure(eventList);
    }

    @Override
    public String toString() {
        return this.getClass().getName() + "{" + key + "=" + value + '}';
    }
}