1 /*
   2  * Copyright (c) 2014, 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 package common;
  24 
  25 import sun.hotspot.code.BlobType;
  26 import java.util.Arrays;
  27 
  28 public class CodeCacheInfoFormatter {
  29     private static final String DEFAULT_SIZE_FORMAT = "[0-9]+Kb";
  30     private BlobType heap = null;
  31     private String size = DEFAULT_SIZE_FORMAT;
  32     private String used = DEFAULT_SIZE_FORMAT;
  33     private String maxUsed = DEFAULT_SIZE_FORMAT;
  34     private String free = DEFAULT_SIZE_FORMAT;
  35 
  36     public static CodeCacheInfoFormatter forHeap(BlobType heap) {
  37         return new CodeCacheInfoFormatter(heap);
  38     }
  39 
  40     public static String[] forHeaps(BlobType... heaps) {
  41         return Arrays.stream(heaps)
  42                 .map(CodeCacheInfoFormatter::forHeap)
  43                 .map(CodeCacheInfoFormatter::getInfoString)
  44                 .toArray(String[]::new);
  45     }
  46 
  47     private static String formatSize(long suffix) {
  48         return String.format("%dKb", suffix / 1024);
  49     }
  50 
  51     private CodeCacheInfoFormatter(BlobType heap) {
  52         this.heap = heap;
  53     }
  54 
  55     public CodeCacheInfoFormatter withSize(long size) {
  56         this.size = CodeCacheInfoFormatter.formatSize(size);
  57         return this;
  58     }
  59 
  60     public CodeCacheInfoFormatter withUsed(long used) {
  61         this.used = CodeCacheInfoFormatter.formatSize(used);
  62         return this;
  63     }
  64 
  65     public CodeCacheInfoFormatter withMaxUsed(long maxUsed) {
  66         this.maxUsed = CodeCacheInfoFormatter.formatSize(maxUsed);
  67         return this;
  68     }
  69 
  70     public CodeCacheInfoFormatter withFree(long free) {
  71         this.free = CodeCacheInfoFormatter.formatSize(free);
  72         return this;
  73     }
  74 
  75     public String getInfoString() {
  76         return String.format("%s: size=%s used=%s max_used=%s free=%s",
  77                 heap.beanName, size, used, maxUsed, free);
  78     }
  79 }