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.classic.joran.action;

import org.xml.sax.Attributes;

import ch.qos.logback.classic.net.ReceiverBase;
import ch.qos.logback.classic.net.SocketReceiver;
import ch.qos.logback.core.joran.action.Action;
import ch.qos.logback.core.joran.spi.ActionException;
import ch.qos.logback.core.joran.spi.InterpretationContext;
import ch.qos.logback.core.util.OptionHelper;

A Joran Action for a SocketReceiver configuration. 
Author:
Carl Harris/**
 * A Joran {@link Action} for a {@link SocketReceiver} configuration.
 *
 * @author Carl Harris
 */
public class ReceiverAction extends Action {

    private ReceiverBase receiver;
    private boolean inError;

    @Override
    public void begin(InterpretationContext ic, String name, Attributes attributes) throws ActionException {

        String className = attributes.getValue(CLASS_ATTRIBUTE);
        if (OptionHelper.isEmpty(className)) {
            addError("Missing class name for receiver. Near [" + name + "] line " + getLineNumber(ic));
            inError = true;
            return;
        }

        try {
            addInfo("About to instantiate receiver of type [" + className + "]");

            receiver = (ReceiverBase) OptionHelper.instantiateByClassName(className, ReceiverBase.class, context);
            receiver.setContext(context);

            ic.pushObject(receiver);
        } catch (Exception ex) {
            inError = true;
            addError("Could not create a receiver of type [" + className + "].", ex);
            throw new ActionException(ex);
        }
    }

    @Override
    public void end(InterpretationContext ic, String name) throws ActionException {

        if (inError)
            return;

        ic.getContext().register(receiver);
        receiver.start();

        Object o = ic.peekObject();
        if (o != receiver) {
            addWarn("The object at the of the stack is not the remote " + "pushed earlier.");
        } else {
            ic.popObject();
        }
    }

}