aai-core/src/main/java/org/onap/aai/logging/LogFormatTools.java

   1 /**
   2  * ============LICENSE_START=======================================================
   3  * org.onap.aai
   4  * ================================================================================
   5  * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *    http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20 package org.onap.aai.logging;
  21
  22 import java.time.Instant;
  23 import java.time.ZoneOffset;
  24 import java.time.ZonedDateTime;
  25 import java.time.format.DateTimeFormatter;
  26 import org.onap.aai.util.AAIConfig;
  27 import org.onap.aai.util.AAIConstants;
  28 import org.onap.aai.exceptions.AAIException;
  29 import org.apache.commons.lang.exception.ExceptionUtils;
  30
  31 public class LogFormatTools {
  32
  33         private static final String DATE_FORMAT = "yyyy-MM-dd'T'HH:mm:ss.SSSZ";
  34         private static final DateTimeFormatter DTF = DateTimeFormatter.ofPattern(DATE_FORMAT)
  35                                                                                                                                         .withZone(ZoneOffset.UTC);
  36
  37         public static String getCurrentDateTime() {
  38                 return DTF.format(ZonedDateTime.now());
  39         }
  40
  41         public static String toDate(long timestamp) {
  42                 return DTF.format(Instant.ofEpochMilli(timestamp));
  43         }
  44
  45         public static long toTimestamp(String date) {
  46                 return ZonedDateTime.parse(date, DTF).toInstant().toEpochMilli();
  47         }
  48         /**
  49          * Gets the stack top.
  50          *
  51          * @param e the e
  52          * @return the stack top
  53          * @throws NumberFormatException the number format exception
  54          * @throws AAIException the AAI exception
  55          */
  56         public static String getStackTop(Throwable e) {
  57             // StringBuilder is more efficient than StringBuffer and should only
  58                 // StringBuffer is only supposed to be used if multiple threads are modifying
  59                 // the same object and since this object is created locally not necessary
  60                 StringBuilder stackMessage = new StringBuilder();
  61                 int maxStackTraceEntries = 10;
  62                 try {
  63                         maxStackTraceEntries = Integer.valueOf(AAIConfig.get(AAIConstants.LOGGING_MAX_STACK_TRACE_ENTRIES));
  64                 }
  65                 catch (AAIException a) {
  66                         //ignore, use default
  67                 }
  68                 catch (NumberFormatException n) {
  69                         //ignore, use default
  70                 }
  71                 if (e != null) {
  72                         Throwable rootCause = ExceptionUtils.getRootCause(e);
  73                         if (rootCause != null) {
  74                                 stackMessage.append("root cause=" + ExceptionUtils.getRootCause(e));
  75                                 StackTraceElement[] elements = rootCause.getStackTrace();
  76                                 int i = 0;
  77                                 for (StackTraceElement element : elements) {
  78                                         if (i < maxStackTraceEntries) {
  79                                                 stackMessage.append(" ClassName- ");
  80                                                 stackMessage.append(element.getClassName());
  81                                                 stackMessage.append(" :LineNumber- ");
  82                                                 stackMessage.append(element.getLineNumber());
  83                                                 stackMessage.append(" :MethodName- ");
  84                                                 stackMessage.append(element.getMethodName());
  85                                         }
  86                                         i++;
  87                                 }
  88                         } else if (e.getCause() != null) {
  89                                 stackMessage.append("cause=" + e.getCause());
  90                                 StackTraceElement[] elements = e.getCause().getStackTrace();
  91                                 int i = 0;
  92                                 for (StackTraceElement element : elements) {
  93                                         if (i < maxStackTraceEntries) {
  94                                                 stackMessage.append(" ClassName- ");
  95                                                 stackMessage.append(element.getClassName());
  96                                                 stackMessage.append(" :LineNumber- ");
  97                                                 stackMessage.append(element.getLineNumber());
  98                                                 stackMessage.append(" :MethodName- ");
  99                                                 stackMessage.append(element.getMethodName());
 100                                         }
 101                                         i++;
 102                                 }
 103                         } else if (e.getStackTrace() != null) {
 104                                 stackMessage.append("ex=" + e.toString());
 105                                 StackTraceElement[] elements = e.getStackTrace();
 106                                 int i = 0;
 107                                 for (StackTraceElement element : elements) {
 108                                         if (i < maxStackTraceEntries) {
 109                                                 stackMessage.append(" ClassName- ");
 110                                                 stackMessage.append(element.getClassName());
 111                                                 stackMessage.append(" :LineNumber- ");
 112                                                 stackMessage.append(element.getLineNumber());
 113                                                 stackMessage.append(" :MethodName- ");
 114                                                 stackMessage.append(element.getMethodName());
 115                                         }
 116                                         i++;
 117                                 }
 118                         }
 119                 }
 120                 return stackMessage.toString();
 121         }
 122
 123 }