/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.phoenix.util;

import javax.annotation.Nullable;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.phoenix.jdbc.PhoenixConnection;

public class LogUtil {

  private LogUtil() {
  }

  public static String addCustomAnnotations(@Nullable String logLine,
    @Nullable PhoenixConnection con) {
    if (
      con == null || con.getCustomTracingAnnotations() == null
        || con.getCustomTracingAnnotations().isEmpty()
    ) {
      return logLine;
    } else {
      return customAnnotationsToString(con) + ' ' + logLine;
    }
  }

  public static String addCustomAnnotations(@Nullable String logLine,
    @Nullable byte[] annotations) {
    if (annotations == null) {
      return logLine;
    } else {
      return Bytes.toString(annotations) + ' ' + logLine;
    }
  }

  public static String customAnnotationsToString(@Nullable PhoenixConnection con) {
    if (
      con == null || con.getCustomTracingAnnotations() == null
        || con.getCustomTracingAnnotations().isEmpty()
    ) {
      return null;
    } else {
      return con.getCustomTracingAnnotations().toString();
    }
  }

  public static String getCallerStackTrace() {
    StackTraceElement[] st = Thread.currentThread().getStackTrace();
    StringBuilder sb = new StringBuilder();
    for (StackTraceElement element : st) {
      sb.append(element.toString());
      sb.append("\n");
    }
    return sb.toString();
  }
}
