001package net.minecraft.profiler; 002 003import java.util.ArrayList; 004import java.util.Collections; 005import java.util.HashMap; 006import java.util.Iterator; 007import java.util.List; 008import java.util.Map; 009 010public class Profiler 011{ 012 /** List of parent sections */ 013 private final List sectionList = new ArrayList(); 014 015 /** List of timestamps (System.nanoTime) */ 016 private final List timestampList = new ArrayList(); 017 018 /** Flag profiling enabled */ 019 public boolean profilingEnabled = false; 020 021 /** Current profiling section */ 022 private String profilingSection = ""; 023 024 /** Profiling map */ 025 private final Map profilingMap = new HashMap(); 026 027 /** 028 * Clear profiling. 029 */ 030 public void clearProfiling() 031 { 032 this.profilingMap.clear(); 033 this.profilingSection = ""; 034 this.sectionList.clear(); 035 } 036 037 /** 038 * Start section 039 */ 040 public void startSection(String par1Str) 041 { 042 if (this.profilingEnabled) 043 { 044 if (this.profilingSection.length() > 0) 045 { 046 this.profilingSection = this.profilingSection + "."; 047 } 048 049 this.profilingSection = this.profilingSection + par1Str; 050 this.sectionList.add(this.profilingSection); 051 this.timestampList.add(Long.valueOf(System.nanoTime())); 052 } 053 } 054 055 /** 056 * End section 057 */ 058 public void endSection() 059 { 060 if (this.profilingEnabled) 061 { 062 long i = System.nanoTime(); 063 long j = ((Long)this.timestampList.remove(this.timestampList.size() - 1)).longValue(); 064 this.sectionList.remove(this.sectionList.size() - 1); 065 long k = i - j; 066 067 if (this.profilingMap.containsKey(this.profilingSection)) 068 { 069 this.profilingMap.put(this.profilingSection, Long.valueOf(((Long)this.profilingMap.get(this.profilingSection)).longValue() + k)); 070 } 071 else 072 { 073 this.profilingMap.put(this.profilingSection, Long.valueOf(k)); 074 } 075 076 if (k > 100000000L) 077 { 078 System.out.println("Something\'s taking too long! \'" + this.profilingSection + "\' took aprox " + (double)k / 1000000.0D + " ms"); 079 } 080 081 this.profilingSection = !this.sectionList.isEmpty() ? (String)this.sectionList.get(this.sectionList.size() - 1) : ""; 082 } 083 } 084 085 /** 086 * Get profiling data 087 */ 088 public List getProfilingData(String par1Str) 089 { 090 if (!this.profilingEnabled) 091 { 092 return null; 093 } 094 else 095 { 096 long i = this.profilingMap.containsKey("root") ? ((Long)this.profilingMap.get("root")).longValue() : 0L; 097 long j = this.profilingMap.containsKey(par1Str) ? ((Long)this.profilingMap.get(par1Str)).longValue() : -1L; 098 ArrayList arraylist = new ArrayList(); 099 100 if (par1Str.length() > 0) 101 { 102 par1Str = par1Str + "."; 103 } 104 105 long k = 0L; 106 Iterator iterator = this.profilingMap.keySet().iterator(); 107 108 while (iterator.hasNext()) 109 { 110 String s1 = (String)iterator.next(); 111 112 if (s1.length() > par1Str.length() && s1.startsWith(par1Str) && s1.indexOf(".", par1Str.length() + 1) < 0) 113 { 114 k += ((Long)this.profilingMap.get(s1)).longValue(); 115 } 116 } 117 118 float f = (float)k; 119 120 if (k < j) 121 { 122 k = j; 123 } 124 125 if (i < k) 126 { 127 i = k; 128 } 129 130 Iterator iterator1 = this.profilingMap.keySet().iterator(); 131 String s2; 132 133 while (iterator1.hasNext()) 134 { 135 s2 = (String)iterator1.next(); 136 137 if (s2.length() > par1Str.length() && s2.startsWith(par1Str) && s2.indexOf(".", par1Str.length() + 1) < 0) 138 { 139 long l = ((Long)this.profilingMap.get(s2)).longValue(); 140 double d0 = (double)l * 100.0D / (double)k; 141 double d1 = (double)l * 100.0D / (double)i; 142 String s3 = s2.substring(par1Str.length()); 143 arraylist.add(new ProfilerResult(s3, d0, d1)); 144 } 145 } 146 147 iterator1 = this.profilingMap.keySet().iterator(); 148 149 while (iterator1.hasNext()) 150 { 151 s2 = (String)iterator1.next(); 152 this.profilingMap.put(s2, Long.valueOf(((Long)this.profilingMap.get(s2)).longValue() * 999L / 1000L)); 153 } 154 155 if ((float)k > f) 156 { 157 arraylist.add(new ProfilerResult("unspecified", (double)((float)k - f) * 100.0D / (double)k, (double)((float)k - f) * 100.0D / (double)i)); 158 } 159 160 Collections.sort(arraylist); 161 arraylist.add(0, new ProfilerResult(par1Str, 100.0D, (double)k * 100.0D / (double)i)); 162 return arraylist; 163 } 164 } 165 166 /** 167 * End current section and start a new section 168 */ 169 public void endStartSection(String par1Str) 170 { 171 this.endSection(); 172 this.startSection(par1Str); 173 } 174 175 public String getNameOfLastSection() 176 { 177 return this.sectionList.size() == 0 ? "[UNKNOWN]" : (String)this.sectionList.get(this.sectionList.size() - 1); 178 } 179}