code: /*
   * Copyright (c) 2017-2018 The Regents of the University of California
   *
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   * 1. Redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   * notice, this list of conditions and the following disclaimer in the
   * documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  package edu.berkeley.cs.jqf.instrument.tracing.events;
  
  import janala.logger.inst.MemberRef;
  
  /**
   * An interface representing by a trace event such as CALL, RETURN or BRANCH.
   *
   *
   * @author Rohan Padhye
   */
  public abstract class TraceEvent {
  
      protected final int iid;
      protected final MemberRef containingMethod;
      protected final int lineNumber;
  
      public TraceEvent(int iid, MemberRef method, int lineNumber) {
          this.iid = iid;
          this.containingMethod = method;
          this.lineNumber = lineNumber;
      }
  
      public int getIid() {
          return iid;
      }
  
      public String getFileName() {
          if (containingMethod == null) {
              return "<unknown>";
          }
          String owner = containingMethod.getOwner();
          int idxOfDollar = owner.indexOf('$');
          if (idxOfDollar >= 0) {
              return owner.substring(0, idxOfDollar) + ".java";
          } else {
              return owner + ".java";
          }
      }
  
      public int getLineNumber() {
          return lineNumber;
      }
  
      public String getContainingClass() {
          if (containingMethod == null) {
              return "";
          } else {
              return containingMethod.getOwner();
          }
      }
  
      public String getContainingMethodName() {
          if (containingMethod == null) {
              return "<unknown>";
          } else {
              return containingMethod.getName();
          }
      }
  
      public String getContainingMethodDesc() {
          if (containingMethod == null) {
              return "(?)";
          } else {
              return containingMethod.getDesc();
          }
      }
  
      public abstract void applyVisitor(TraceEventVisitor v);
  }
  