1 /*
   2  * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package build.tools.jdwpgen;
  27 
  28 import java.util.*;
  29 import java.io.*;
  30 
  31 class CommandNode extends AbstractCommandNode {
  32 
  33     void constrain(Context ctx) {
  34         if (components.size() == 3) {
  35             Node out   = components.get(0);
  36             Node reply = components.get(1);
  37             Node error = components.get(2);
  38             if (!(out instanceof OutNode)) {
  39                 error("Expected 'Out' item, got: " + out);
  40             }
  41             if (!(reply instanceof ReplyNode)) {
  42                 error("Expected 'Reply' item, got: " + reply);
  43             }
  44             if (!(error instanceof ErrorSetNode)) {
  45                 error("Expected 'ErrorSet' item, got: " + error);
  46             }
  47         } else if (components.size() == 1) {
  48             Node evt = components.get(0);
  49             if (!(evt instanceof EventNode)) {
  50                 error("Expected 'Event' item, got: " + evt);
  51             }
  52         } else {
  53             error("Command must have Out and Reply items or ErrorSet item");
  54         }
  55         super.constrain(ctx);
  56     }
  57 
  58     void genJavaClassSpecifics(PrintWriter writer, int depth) {
  59         indent(writer, depth);
  60         writer.println("static final int COMMAND = " +
  61                        nameNode.value() + ";");
  62     }
  63 
  64     void genJava(PrintWriter writer, int depth) {
  65         genJavaClass(writer, depth);
  66     }
  67 }