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1   /*
2    * Copyright (c) 2000, 2012, 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.
8    *
9    * This code is distributed in the hope that it will be useful, but WITHOUT
10   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12   * version 2 for more details (a copy is included in the LICENSE file that
13   * accompanied this code).
14   *
15   * You should have received a copy of the GNU General Public License version
16   * 2 along with this work; if not, write to the Free Software Foundation,
17   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18   *
19   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20   * or visit www.oracle.com if you need additional information or have any
21   * questions.
22   *
23   */
24  
25  package sun.jvm.hotspot.oops;
26  
27  import java.io.*;
28  
29  public class OopPrinter implements OopVisitor {
30    public OopPrinter(PrintStream tty) {
31      this.tty = tty;
32    }
33  
34    PrintStream tty;
35  
36    public void prologue() {
37      Oop.printOopValueOn(getObj(), tty);
38      tty.println(" (object size = " + getObj().getObjectSize() + ")");
39    }
40  
41    public void epilogue() {
42      tty.println();
43    }
44  
45  
46    private Oop obj;
47    public void setObj(Oop obj) { this.obj = obj; }
48    public Oop getObj() { return obj; }
49  
50  
51    private void printField(Field field) {
52      field.printOn(tty);
53    }
54  
55    public void doMetadata(MetadataField field, boolean isVMField) {
56      printField(field);
57      field.getValue(getObj()).printValueOn(tty);
58      tty.println();
59    }
60  
61    public void doOop(OopField field, boolean isVMField) {
62      printField(field);
63      Oop.printOopValueOn(field.getValue(getObj()), tty);
64      tty.println();
65    }
66  
67    public void doOop(NarrowOopField field, boolean isVMField) {
68      printField(field);
69      Oop.printOopValueOn(field.getValue(getObj()), tty);
70      tty.println();
71    }
72  
73    public void doChar(CharField field, boolean isVMField) {
74      printField(field);
75      char c = field.getValue(getObj());
76      // Fix me: not yet complete
77      if (Character.isLetterOrDigit(c)) tty.println(c);
78      else tty.println((int)c);
79    }
80    public void doByte(ByteField field, boolean isVMField) {
81      printField(field);
82      tty.println(field.getValue(getObj()));
83    }
84    public void doBoolean(BooleanField field, boolean isVMField) {
85      printField(field);
86      tty.println(field.getValue(getObj()));
87    }
88    public void doShort(ShortField field, boolean isVMField) {
89      printField(field);
90      tty.println(field.getValue(getObj()));
91    }
92    public void doInt(IntField field, boolean isVMField) {
93      printField(field);
94      tty.println(field.getValue(getObj()));
95    }
96    public void doLong(LongField field, boolean isVMField) {
97      printField(field);
98      tty.println(field.getValue(getObj()));
99    }
100   public void doFloat(FloatField field, boolean isVMField) {
101     printField(field);
102     tty.println(field.getValue(getObj()));
103   }
104   public void doDouble(DoubleField field, boolean isVMField) {
105     printField(field);
106     tty.println(field.getValue(getObj()));
107   }
108   public void doCInt(CIntField field, boolean isVMField) {
109     printField(field);
110     tty.println(field.getValue(getObj()));
111   }
112 }