/*
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */
package org.mule.runtime.config.spring.parsers.specific;

import org.mule.runtime.config.spring.parsers.AbstractMuleBeanDefinitionParser;
import org.mule.runtime.config.spring.parsers.MuleDefinitionParser;
import org.mule.runtime.config.spring.parsers.MuleDefinitionParserConfiguration;
import org.mule.runtime.config.spring.parsers.delegate.AbstractSingleParentFamilyDefinitionParser;
import org.mule.runtime.config.spring.parsers.generic.ChildDefinitionParser;
import org.mule.runtime.config.spring.parsers.processors.BlockAttribute;

/**
 * Generates a transaction config with embedded factory. If no factory is defined, it's taken from the factory-class or
 * factory-ref attributes.
 */
public class TransactionDefinitionParser extends AbstractSingleParentFamilyDefinitionParser {

  public static final String FACTORY = "factory";

  public static final String FACTORY_REF = FACTORY + "-ref";
  public static final String FACTORY_CLASS = FACTORY + "-" + AbstractMuleBeanDefinitionParser.ATTRIBUTE_CLASS;
  public static final String ACTION = "action";
  public static final String TIMEOUT = "timeout";
  public static final String INTERACT_WTH_EXTERNAL = "interactWithExternal";

  private static String[] IGNORED_ATTRIBUTES = new String[] {FACTORY_REF, ACTION, TIMEOUT, INTERACT_WTH_EXTERNAL};

  public TransactionDefinitionParser() {
    commonInit(null);
  }

  public TransactionDefinitionParser(Class factoryClass) {
    commonInit(factoryClass);
    MuleDefinitionParser factoryParser = getDelegate(1);
    // don't allow these if the class is specified in the constructor
    factoryParser.registerPreProcessor(new BlockAttribute(new String[] {FACTORY_CLASS, FACTORY_REF}));
  }

  protected void commonInit(Class factoryClass) {
    addDelegate(new TransactionConfigDefinitionParser()).setIgnoredDefault(true).removeIgnored(FACTORY_REF).removeIgnored(ACTION)
        .removeIgnored(TIMEOUT).removeIgnored(INTERACT_WTH_EXTERNAL);

    final MuleDefinitionParserConfiguration childDefinitionParser =
        addDelegateAsChild(new ChildDefinitionParser(FACTORY, factoryClass)).setIgnoredDefault(false)
            .addAlias(FACTORY_CLASS, AbstractMuleBeanDefinitionParser.ATTRIBUTE_CLASS)
            // the ref is set on the parent
            .registerPreProcessor(new BlockAttribute(FACTORY));
    for (String attribute : getIgnoredAttributes()) {
      childDefinitionParser.addIgnored(attribute);
    }

    addIgnored(AbstractMuleBeanDefinitionParser.ATTRIBUTE_NAME);
    addHandledException(BlockAttribute.BlockAttributeException.class);
  }

  protected String[] getIgnoredAttributes() {
    return IGNORED_ATTRIBUTES;
  }
}