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// ---------------------------------------------------------------------------
// Copyright (C) 2006 Microsoft Corporation All Rights Reserved
// ---------------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.Workflow.ComponentModel;
namespace System.Workflow.Activities.Rules
{
internal class Tracer
{
private string tracePrefix;
// get the localized trace messages once
private static string traceRuleIdentifier = Messages.TraceRuleIdentifier;
private static string traceRuleHeader = Messages.TraceRuleHeader;
private static string traceRuleSetEvaluate = Messages.TraceRuleSetEvaluate;
private static string traceRuleEvaluate = Messages.TraceRuleEvaluate;
private static string traceRuleResult = Messages.TraceRuleResult;
private static string traceRuleActions = Messages.TraceRuleActions;
private static string traceCondition = Messages.Condition;
private static string traceThen = Messages.Then;
private static string traceElse = Messages.Else;
private static string traceUpdate = Messages.TraceUpdate;
private static string traceRuleTriggers = Messages.TraceRuleTriggers;
private static string traceRuleConditionDependency = Messages.TraceRuleConditionDependency;
private static string traceRuleActionSideEffect = Messages.TraceRuleActionSideEffect;
internal Tracer(string name, ActivityExecutionContext activityExecutionContext)
{
if (activityExecutionContext != null)
tracePrefix = string.Format(CultureInfo.CurrentCulture, traceRuleIdentifier, name, activityExecutionContext.ContextGuid.ToString());
else
tracePrefix = string.Format(CultureInfo.CurrentCulture, traceRuleHeader, name);
}
internal void StartRuleSet()
{
WorkflowActivityTrace.Rules.TraceEvent(TraceEventType.Information, 0, traceRuleSetEvaluate, tracePrefix);
}
internal void StartRule(string ruleName)
{
WorkflowActivityTrace.Rules.TraceEvent(TraceEventType.Verbose, 0, traceRuleEvaluate, tracePrefix, ruleName);
}
internal void RuleResult(string ruleName, bool result)
{
WorkflowActivityTrace.Rules.TraceEvent(TraceEventType.Information, 0, traceRuleResult, tracePrefix, ruleName, result.ToString());
}
internal void StartActions(string ruleName, bool result)
{
WorkflowActivityTrace.Rules.TraceEvent(TraceEventType.Verbose, 0, traceRuleActions, tracePrefix,
(result ? traceThen : traceElse), ruleName);
}
internal void TraceUpdate(string ruleName, string otherName)
{
WorkflowActivityTrace.Rules.TraceEvent(TraceEventType.Verbose, 0, traceUpdate, tracePrefix, ruleName, otherName);
}
internal void TraceConditionSymbols(string ruleName, ICollection<string> symbols)
{
TraceRuleSymbols(traceRuleConditionDependency, traceCondition, ruleName, symbols);
}
internal void TraceThenSymbols(string ruleName, ICollection<string> symbols)
{
TraceRuleSymbols(traceRuleActionSideEffect, traceThen, ruleName, symbols);
}
internal void TraceElseSymbols(string ruleName, ICollection<string> symbols)
{
TraceRuleSymbols(traceRuleActionSideEffect, traceElse, ruleName, symbols);
}
private void TraceRuleSymbols(string message, string clause, string ruleName, ICollection<string> symbols)
{
foreach (string symbol in symbols)
WorkflowActivityTrace.Rules.TraceEvent(TraceEventType.Verbose, 0, message, tracePrefix, ruleName, clause, symbol);
}
internal void TraceThenTriggers(string currentRuleName, ICollection<int> triggeredRules, List<RuleState> ruleStates)
{
TraceRuleTriggers(traceThen, currentRuleName, triggeredRules, ruleStates);
}
internal void TraceElseTriggers(string currentRuleName, ICollection<int> triggeredRules, List<RuleState> ruleStates)
{
TraceRuleTriggers(traceElse, currentRuleName, triggeredRules, ruleStates);
}
private void TraceRuleTriggers(string thenOrElse, string currentRuleName, ICollection<int> triggeredRules, List<RuleState> ruleStates)
{
foreach (int r in triggeredRules)
WorkflowActivityTrace.Rules.TraceEvent(TraceEventType.Verbose, 0, traceRuleTriggers, tracePrefix, currentRuleName, thenOrElse, ruleStates[r].Rule.Name);
}
}
}
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