1 /* 2 * Copyright (c) 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. 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 org.graalvm.compiler.debug.internal; 24 25 import java.util.ArrayList; 26 import java.util.Collections; 27 import java.util.HashMap; 28 import java.util.List; 29 30 import org.graalvm.compiler.debug.DebugHistogram; 31 32 public class DebugHistogramImpl implements DebugHistogram { 33 34 private final String name; 35 private HashMap<Object, CountedValue> map = new HashMap<>(); 36 37 public DebugHistogramImpl(String name) { 38 this.name = name; 39 } 40 41 @Override 42 public void add(Object value) { 43 CountedValue cv = map.get(value); 44 if (cv == null) { 45 map.put(value, new CountedValue(1, value)); 46 } else { 47 cv.inc(); 48 } 49 } 50 51 @Override 52 public void add(Object value, long count) { 53 CountedValue cv = map.get(value); 54 if (cv == null) { 55 map.put(value, new CountedValue(count, value)); 56 } else { 57 cv.add(count); 58 } 59 } 60 61 @Override 62 public String getName() { 63 return name; 64 } 65 66 @Override 67 public List<CountedValue> getValues() { 68 ArrayList<CountedValue> res = new ArrayList<>(map.values()); 69 Collections.sort(res); 70 return res; 71 } 72 }