Mercurial > hg > truffle
view graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/logging/Logger.java @ 21765:a7a1b9b65bce
Small improvement and clean up of InstanceOfNode.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sun, 07 Jun 2015 00:47:10 +0200 |
parents | d563baeca9df |
children |
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/* * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.jvmci.hotspot.logging; import java.io.*; import java.lang.reflect.*; import java.util.*; import com.oracle.jvmci.debug.*; import com.oracle.jvmci.hotspot.*; /** * Scoped logging class used to display the call hierarchy of {@link CompilerToVM} calls. */ public class Logger { public static final boolean ENABLED = Boolean.valueOf(System.getProperty("jvmci.debug")); private static final int SPACING = 4; private static final ThreadLocal<Logger> loggerTL; private Deque<Boolean> openStack = new LinkedList<>(); private boolean open = false; private int level = 0; private static final PrintStream out; static { if (ENABLED) { loggerTL = new ThreadLocal<Logger>() { @Override protected Logger initialValue() { return new Logger(); } }; } else { loggerTL = null; } PrintStream ps = null; String filename = System.getProperty("jvmci.info_file"); if (filename != null && !"".equals(filename)) { try { ps = new PrintStream(new FileOutputStream(filename)); } catch (FileNotFoundException e) { e.printStackTrace(); ps = null; } } out = ps; if (out != null) { out.println("start: " + new Date()); } } public static void info(String message) { if (ENABLED) { log(message); } else { TTY.println(message); } if (out != null) { out.println(message); out.flush(); } } public static void log(String message) { if (ENABLED) { Logger logger = loggerTL.get(); for (String line : message.split("\n")) { if (logger.open) { TTY.println("..."); logger.open = false; } TTY.print(space(logger.level)); TTY.println(line); } } } public static void startScope(String message) { if (ENABLED) { Logger logger = loggerTL.get(); if (logger.open) { TTY.println("..."); logger.open = false; } TTY.print(space(logger.level)); TTY.print(message); logger.openStack.push(logger.open); logger.open = true; logger.level++; } } public static void endScope(String message) { if (ENABLED) { Logger logger = loggerTL.get(); logger.level--; if (logger.open) { TTY.println(message); } else { TTY.println(space(logger.level) + "..." + message); } logger.open = logger.openStack.pop(); } } private static String[] spaces = new String[50]; private static String space(int count) { assert count >= 0; String result; if (count >= spaces.length || spaces[count] == null) { StringBuilder str = new StringBuilder(); for (int i = 0; i < count * SPACING; i++) { str.append(' '); } result = str.toString(); if (count < spaces.length) { spaces[count] = result; } } else { result = spaces[count]; } return result; } public static String pretty(Object value) { if (value == null) { return "null"; } Class<?> klass = value.getClass(); if (value instanceof Void) { return "void"; } else if (value instanceof String) { return "\"" + value + "\""; } else if (value instanceof Method) { return "method \"" + ((Method) value).getName() + "\""; } else if (value instanceof Class<?>) { return "class \"" + ((Class<?>) value).getSimpleName() + "\""; } else if (value instanceof Integer) { if ((Integer) value < 10) { return value.toString(); } return value + " (0x" + Integer.toHexString((Integer) value) + ")"; } else if (value instanceof Long) { if ((Long) value < 10 && (Long) value > -10) { return value + "l"; } return value + "l (0x" + Long.toHexString((Long) value) + "l)"; } else if (klass.isArray()) { StringBuilder str = new StringBuilder(); int dimensions = 0; while (klass.isArray()) { dimensions++; klass = klass.getComponentType(); } int length = Array.getLength(value); str.append(klass.getSimpleName()).append('[').append(length).append(']'); for (int i = 1; i < dimensions; i++) { str.append("[]"); } str.append(" {"); for (int i = 0; i < length; i++) { str.append(pretty(Array.get(value, i))); if (i < length - 1) { str.append(", "); } } str.append('}'); return str.toString(); } return value.toString(); } }