import org.apache.hadoop.hbase.protobuf.generated.ErrorHandlingProtos.StackTraceElementMessage; //导入依赖的package包/类
/**
 * Convert a stack trace to list of {@link StackTraceElement}.
 * @param trace the stack trace to convert to protobuf message
 * @return <tt>null</tt> if the passed stack is <tt>null</tt>.
 */
private static List<StackTraceElementMessage> toStackTraceElementMessages(
    StackTraceElement[] trace) {
  // if there is no stack trace, ignore it and just return the message
  if (trace == null) return null;
  // build the stack trace for the message
  List<StackTraceElementMessage> pbTrace =
      new ArrayList<StackTraceElementMessage>(trace.length);
  for (StackTraceElement elem : trace) {
    StackTraceElementMessage.Builder stackBuilder = StackTraceElementMessage.newBuilder();
    stackBuilder.setDeclaringClass(elem.getClassName());
    stackBuilder.setFileName(elem.getFileName());
    stackBuilder.setLineNumber(elem.getLineNumber());
    stackBuilder.setMethodName(elem.getMethodName());
    pbTrace.add(stackBuilder.build());
  }
  return pbTrace;
}
 

import org.apache.hadoop.hbase.protobuf.generated.ErrorHandlingProtos.StackTraceElementMessage; //导入依赖的package包/类
/**
 * Converts a ForeignException to an array of bytes.
 * @param source the name of the external exception source
 * @param t the "local" external exception (local)
 * @return protobuf serialized version of ForeignException
 */
public static byte[] serialize(String source, Throwable t) {
  GenericExceptionMessage.Builder gemBuilder = GenericExceptionMessage.newBuilder();
  gemBuilder.setClassName(t.getClass().getName());
  if (t.getMessage() != null) {
    gemBuilder.setMessage(t.getMessage());
  }
  // set the stack trace, if there is one
  List<StackTraceElementMessage> stack =
      ForeignException.toStackTraceElementMessages(t.getStackTrace());
  if (stack != null) {
    gemBuilder.addAllTrace(stack);
  }
  GenericExceptionMessage payload = gemBuilder.build();
  ForeignExceptionMessage.Builder exception = ForeignExceptionMessage.newBuilder();
  exception.setGenericException(payload).setSource(source);
  ForeignExceptionMessage eem = exception.build();
  return eem.toByteArray();
}
 

import org.apache.hadoop.hbase.protobuf.generated.ErrorHandlingProtos.StackTraceElementMessage; //导入依赖的package包/类
public static ForeignExceptionMessage toProtoForeignException(String source, Throwable t) {
  GenericExceptionMessage.Builder gemBuilder = GenericExceptionMessage.newBuilder();
  gemBuilder.setClassName(t.getClass().getName());
  if (t.getMessage() != null) {
    gemBuilder.setMessage(t.getMessage());
  }
  // set the stack trace, if there is one
  List<StackTraceElementMessage> stack = toProtoStackTraceElement(t.getStackTrace());
  if (stack != null) {
    gemBuilder.addAllTrace(stack);
  }
  GenericExceptionMessage payload = gemBuilder.build();
  ForeignExceptionMessage.Builder exception = ForeignExceptionMessage.newBuilder();
  exception.setGenericException(payload).setSource(source);
  return exception.build();
}
 

import org.apache.hadoop.hbase.protobuf.generated.ErrorHandlingProtos.StackTraceElementMessage; //导入依赖的package包/类
/**
 * Convert a stack trace to list of {@link StackTraceElement}.
 * @param trace the stack trace to convert to protobuf message
 * @return <tt>null</tt> if the passed stack is <tt>null</tt>.
 */
public static List<StackTraceElementMessage> toProtoStackTraceElement(StackTraceElement[] trace) {
  // if there is no stack trace, ignore it and just return the message
  if (trace == null) return null;
  // build the stack trace for the message
  List<StackTraceElementMessage> pbTrace = new ArrayList<StackTraceElementMessage>(trace.length);
  for (StackTraceElement elem : trace) {
    StackTraceElementMessage.Builder stackBuilder = StackTraceElementMessage.newBuilder();
    stackBuilder.setDeclaringClass(elem.getClassName());
    if (elem.getFileName() != null) {
      stackBuilder.setFileName(elem.getFileName());
    }
    stackBuilder.setLineNumber(elem.getLineNumber());
    stackBuilder.setMethodName(elem.getMethodName());
    pbTrace.add(stackBuilder.build());
  }
  return pbTrace;
}
 

import org.apache.hadoop.hbase.protobuf.generated.ErrorHandlingProtos.StackTraceElementMessage; //导入依赖的package包/类
/**
 * Unwind a serialized array of {@link StackTraceElementMessage}s to a
 * {@link StackTraceElement}s.
 * @param traceList list that was serialized
 * @return the deserialized list or <tt>null</tt> if it couldn't be unwound (e.g. wasn't set on
 *         the sender).
 */
private static StackTraceElement[] toStackTrace(List<StackTraceElementMessage> traceList) {
  if (traceList == null || traceList.size() == 0) {
    return new StackTraceElement[0]; // empty array
  }
  StackTraceElement[] trace = new StackTraceElement[traceList.size()];
  for (int i = 0; i < traceList.size(); i++) {
    StackTraceElementMessage elem = traceList.get(i);
    trace[i] = new StackTraceElement(
        elem.getDeclaringClass(), elem.getMethodName(), elem.getFileName(), elem.getLineNumber());
  }
  return trace;
}
 

import org.apache.hadoop.hbase.protobuf.generated.ErrorHandlingProtos.StackTraceElementMessage; //导入依赖的package包/类
/**
 * Unwind a serialized array of {@link StackTraceElementMessage}s to a
 * {@link StackTraceElement}s.
 * @param traceList list that was serialized
 * @return the deserialized list or <tt>null</tt> if it couldn't be unwound (e.g. wasn't set on
 *         the sender).
 */
public static StackTraceElement[] toStackTrace(List<StackTraceElementMessage> traceList) {
  if (traceList == null || traceList.size() == 0) {
    return new StackTraceElement[0]; // empty array
  }
  StackTraceElement[] trace = new StackTraceElement[traceList.size()];
  for (int i = 0; i < traceList.size(); i++) {
    StackTraceElementMessage elem = traceList.get(i);
    trace[i] = new StackTraceElement(
        elem.getDeclaringClass(), elem.getMethodName(),
        elem.hasFileName() ? elem.getFileName() : null,
        elem.getLineNumber());
  }
  return trace;
}