/*
 * Copyright 2010-2012 Luca Garulli (l.garulli--at--orientechnologies.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.orientechnologies.orient.server.distributed;

import java.util.logging.Level;

import com.orientechnologies.common.log.OLogManager;

/**
 * Distributed logger.
 * 
 * @author Luca Garulli (l.garulli--at--orientechnologies.com)
 * 
 */
public class ODistributedServerLog {
  public enum DIRECTION {
    NONE, IN, OUT, BOTH
  }

  public static boolean isDebugEnabled() {
    return OLogManager.instance().isDebugEnabled();
  }

  public static void debug(final Object iRequester, final String iLocalNode, final String iRemoteNode, final DIRECTION iDirection,
      final String iMessage, final Object... iAdditionalArgs) {
    OLogManager.instance().log(iRequester, Level.FINE, formatMessage(iRequester, iLocalNode, iRemoteNode, iDirection, iMessage),
        null, iAdditionalArgs);
  }

  public static void debug(final Object iRequester, final String iLocalNode, final String iRemoteNode, final DIRECTION iDirection,
      final String iMessage, final Throwable iException, final Object... iAdditionalArgs) {
    OLogManager.instance().log(iRequester, Level.FINE, formatMessage(iRequester, iLocalNode, iRemoteNode, iDirection, iMessage),
        iException, iAdditionalArgs);
  }

  public static void info(final Object iRequester, final String iLocalNode, final String iRemoteNode, final DIRECTION iDirection,
      final String iMessage, final Object... iAdditionalArgs) {
    OLogManager.instance().log(iRequester, Level.INFO, formatMessage(iRequester, iLocalNode, iRemoteNode, iDirection, iMessage),
        null, iAdditionalArgs);
  }

  public static void info(final Object iRequester, final String iLocalNode, final String iRemoteNode, final DIRECTION iDirection,
      final String iMessage, final Throwable iException, final Object... iAdditionalArgs) {
    OLogManager.instance().log(iRequester, Level.INFO, formatMessage(iRequester, iLocalNode, iRemoteNode, iDirection, iMessage),
        iException, iAdditionalArgs);
  }

  public static void warn(final Object iRequester, final String iLocalNode, final String iRemoteNode, final DIRECTION iDirection,
      final String iMessage, final Object... iAdditionalArgs) {
    OLogManager.instance().log(iRequester, Level.WARNING, formatMessage(iRequester, iLocalNode, iRemoteNode, iDirection, iMessage),
        null, iAdditionalArgs);
  }

  public static void warn(final Object iRequester, final String iLocalNode, final String iRemoteNode, final DIRECTION iDirection,
      final String iMessage, final Throwable iException, final Object... iAdditionalArgs) {
    OLogManager.instance().log(iRequester, Level.WARNING, formatMessage(iRequester, iLocalNode, iRemoteNode, iDirection, iMessage),
        iException, iAdditionalArgs);
  }

  public static void error(final Object iRequester, final String iLocalNode, final String iRemoteNode, final DIRECTION iDirection,
      final String iMessage, final Object... iAdditionalArgs) {
    OLogManager.instance().log(iRequester, Level.SEVERE, formatMessage(iRequester, iLocalNode, iRemoteNode, iDirection, iMessage),
        null, iAdditionalArgs);
  }

  public static void error(final Object iRequester, final String iLocalNode, final String iRemoteNode, final DIRECTION iDirection,
      final String iMessage, final Throwable iException, final Object... iAdditionalArgs) {
    OLogManager.instance().log(iRequester, Level.SEVERE, formatMessage(iRequester, iLocalNode, iRemoteNode, iDirection, iMessage),
        iException, iAdditionalArgs);
  }

  protected static String formatMessage(final Object iRequester, final String iLocalNode, final String iRemoteNode,
      final DIRECTION iDirection, final String iMessage) {
    final StringBuilder message = new StringBuilder();

    if (iLocalNode != null) {
      message.append('[');
      message.append(iLocalNode);
      message.append(']');
    }

    if (iRemoteNode != null && !iRemoteNode.equals(iLocalNode)) {
      switch (iDirection) {
      case IN:
        message.append("<-");
        break;
      case OUT:
        message.append("->");
        break;
      case BOTH:
        message.append("<>");
        break;
      case NONE:
        message.append("--");
        break;
      }

      message.append('[');
      message.append(iRemoteNode);
      message.append(']');
    }

    message.append(' ');
    message.append(iMessage);

    return message.toString();
  }
}
