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 * Copyright (c) 2012, 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.
 *
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 */
package org.graalvm.compiler.debug;

import java.io.PrintStream;
import java.util.Collection;

public interface DebugConfig {

    
Determines the current log level in the current debug scope . /**
     * Determines the current log level in the {@linkplain Debug#currentScope() current debug scope}
     * .
     */
    int getLogLevel();

    
Determines the current dump level in the current debug
scope. /**
     * Determines the current dump level in the {@linkplain Debug#currentScope() current debug
     * scope}.
     */
    int getDumpLevel();

    
Determines if logging can be enabled in the current method, regardless of the current debug scope. /**
     * Determines if logging can be enabled in the current method, regardless of the
     * {@linkplain Debug#currentScope() current debug scope}.
     */
    boolean isLogEnabledForMethod();

    
Determines if counting is enabled in the current debug
scope. 
See Also:
Debug.counter(CharSequence)/**
     * Determines if counting is enabled in the {@linkplain Debug#currentScope() current debug
     * scope}.
     *
     * @see Debug#counter(CharSequence)
     */
    boolean isCountEnabled();

    
Determines if memory use tracking is enabled in the current
debug scope. 
See Also:
Debug.memUseTracker(CharSequence)/**
     * Determines if memory use tracking is enabled in the {@linkplain Debug#currentScope() current
     * debug scope}.
     *
     * @see Debug#memUseTracker(CharSequence)
     */
    boolean isMemUseTrackingEnabled();

    
Determines if dumping can be enabled in the current method, regardless of the current debug scope. /**
     * Determines if dumping can be enabled in the current method, regardless of the
     * {@linkplain Debug#currentScope() current debug scope}.
     */
    boolean isDumpEnabledForMethod();

    
See Also:
isVerifyEnabled.isVerifyEnabled()/**
     * @see Debug#isVerifyEnabled()
     */
    boolean isVerifyEnabled();

    
See Also:
isVerifyEnabledForMethod.isVerifyEnabledForMethod()/**
     * @see Debug#isVerifyEnabledForMethod()
     */
    boolean isVerifyEnabledForMethod();

    
See Also:
isMethodMeterEnabled.isMethodMeterEnabled()/**
     * @see Debug#isMethodMeterEnabled()
     */
    boolean isMethodMeterEnabled();

    
Adds an object the context used by this configuration to do filtering.
/**
     * Adds an object the context used by this configuration to do filtering.
     */
    void addToContext(Object o);

    
Removes an object the context used by this configuration to do filtering. This should only removes extra context added by addToContext(Object). /**
     * Removes an object the context used by this configuration to do filtering.
     *
     * This should only removes extra context added by {@link #addToContext(Object)}.
     */
    void removeFromContext(Object o);

    
See Also:
timer.timer(CharSequence)/**
     * @see Debug#timer(CharSequence)
     */
    boolean isTimeEnabled();

    
Handles notification of an exception occurring within a debug scope.
Returns:
the exception object that is to be propagated to parent scope. A value of null indicates that e is to be propagated./**
     * Handles notification of an exception occurring within a debug scope.
     *
     * @return the exception object that is to be propagated to parent scope. A value of
     *         {@code null} indicates that {@code e} is to be propagated.
     */
    RuntimeException interceptException(Throwable e);

    
Gets the modifiable collection of dump handlers registered with this configuration.
/**
     * Gets the modifiable collection of dump handlers registered with this configuration.
     */
    Collection<DebugDumpHandler> dumpHandlers();

    PrintStream output();

    
Gets the modifiable collection of verify handlers registered with this configuration.
/**
     * Gets the modifiable collection of verify handlers registered with this configuration.
     */
    Collection<DebugVerifyHandler> verifyHandlers();

}