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import javax.servlet.http.HttpServletRequest; |
import javax.servlet.http.HttpServletRequest; |
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import javax.servlet.http.HttpServletResponse; |
import javax.servlet.http.HttpServletResponse; |
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import dk.thoerup.circuitbreaker.AccountingCircuitBreaker; |
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import dk.thoerup.circuitbreaker.LoggingCircuitBreaker; |
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import dk.thoerup.circuitbreaker.CircuitBreaker; |
import dk.thoerup.circuitbreaker.CircuitBreaker; |
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import dk.thoerup.circuitbreaker.CircuitBreakerManager; |
import dk.thoerup.circuitbreaker.CircuitBreakerManager; |
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import dk.thoerup.circuitbreaker.statistics.AccountingStatistics; |
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import dk.thoerup.circuitbreaker.statistics.LoggingStatistics; |
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import dk.thoerup.circuitbreaker.statistics.Statistics; |
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public class ViewCircuitBreaker implements Command { |
public class ViewCircuitBreaker implements Command { |
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if (breaker == null) |
if (breaker == null) |
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return "<html><body><h2>No breaker named '" + req.getParameter("breaker") + "'</h2></body></html>"; |
return "<html><body><h2>No breaker named '" + req.getParameter("breaker") + "'</h2></body></html>"; |
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Statistics stats = breaker.getStatistics(); |
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StringBuilder sb = new StringBuilder(); |
StringBuilder sb = new StringBuilder(); |
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sb.append("<html><head><title>View Circuitbreaker</title></head><body>"); |
sb.append("<html><head><title>View Circuitbreaker</title></head><body>"); |
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sb.append("<<== <a href=\"").append(req.getRequestURI()).append("\">Back to overview</a><br><br>"); |
sb.append("<<== <a href=\"").append(req.getRequestURI()).append("\">Back to overview</a><br><br>"); |
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sb.append("<h2>CircuitBreaker</h2>\n"); |
sb.append("<h2>CircuitBreaker</h2>\n"); |
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sb.append("<b>Attributes:</b>\n"); |
sb.append("<b>Attributes:</b>\n"); |
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sb.append("<table border=\"1\" cellspacing=0>"); |
sb.append("<table border=\"1\" cellspacing=0>"); |
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sb.append("<tr><td>State </td><td><b>").append( getStateBar(breaker) ).append("</b></td></tr>\n"); |
sb.append("<tr><td>State </td><td><b>").append( getStateBar(breaker) ).append("</b></td></tr>\n"); |
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sb.append("<tr><td>Type </td><td>").append(breaker.getClass().getSimpleName() ).append("</td></tr>\n"); |
sb.append("<tr><td>Type </td><td>").append(breaker.getClass().getSimpleName() ).append("</td></tr>\n"); |
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sb.append("<tr><td>Notifier </td><td>").append(breaker.getNotifierName()).append("</td></tr>\n"); |
sb.append("<tr><td>Notifier </td><td>").append(breaker.getNotifierName()).append("</td></tr>\n"); |
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sb.append("<tr><td>Statistics </td><td>").append( stats.getClass().getSimpleName() ).append("</td></tr>\n"); |
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sb.append("<tr><td>Failure count </td><td>").append(breaker.getFailureCount()).append("</td></tr>\n"); |
sb.append("<tr><td>Failure count </td><td>").append(breaker.getFailureCount()).append("</td></tr>\n"); |
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sb.append("<tr><td>Failure threshold </td><td>").append(breaker.getThreshold()).append("</td></tr>\n"); |
sb.append("<tr><td>Failure threshold </td><td>").append(breaker.getThreshold()).append("</td></tr>\n"); |
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sb.append("<tr><td>Timeout, elapsed</td><td>").append( breaker.getElapsed() ).append("</td></tr>\n"); |
sb.append("<tr><td>Timeout, elapsed</td><td>").append( breaker.getElapsed() ).append("</td></tr>\n"); |
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sb.append("<tr><td>Timeout, limit</td><td>").append( breaker.getTimeout() ).append("</td></tr>\n"); |
sb.append("<tr><td>Timeout, limit</td><td>").append( breaker.getTimeout() ).append("</td></tr>\n"); |
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if (breaker instanceof AccountingCircuitBreaker) { |
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AccountingCircuitBreaker acb = (AccountingCircuitBreaker) breaker; |
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if (stats instanceof AccountingStatistics) { |
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AccountingStatistics ac = (AccountingStatistics) stats; |
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StringBuilder sbf = new StringBuilder(); |
StringBuilder sbf = new StringBuilder(); |
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if (acb.getTotalCallCount() > 0) { |
if (ac.getTotalCallCount() > 0) { |
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double failure_percentage = ((double) acb.getTotalFailureCount()*100) / ((double) acb.getTotalCallCount() ); |
double failure_percentage = ((double) ac.getTotalFailureCount()*100) / ((double) ac.getTotalCallCount() ); |
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Formatter formatter = new Formatter(sbf); |
Formatter formatter = new Formatter(sbf); |
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formatter.format("%.2f", failure_percentage); |
formatter.format("%.2f", failure_percentage); |
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formatter.close(); |
formatter.close(); |
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sb.append("<tr><th colspan=\"2\">Accounting</th></tr>\n"); |
sb.append("<tr><th colspan=\"2\">Accounting</th></tr>\n"); |
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sb.append("<tr><td>Trip count</td><td>").append( acb.getTripCount() ).append("</td></tr>\n"); |
sb.append("<tr><td>Trip count</td><td>").append( ac.getTripCount() ).append("</td></tr>\n"); |
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sb.append("<tr><td>Re-trip count</td><td>").append( acb.getRetripCount() ).append("</td></tr>\n"); |
sb.append("<tr><td>Re-trip count</td><td>").append( ac.getRetripCount() ).append("</td></tr>\n"); |
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sb.append("<tr><td>Block count</td><td>").append( acb.getBlockCount() ).append("</td></tr>\n"); |
sb.append("<tr><td>Block count</td><td>").append( ac.getBlockCount() ).append("</td></tr>\n"); |
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sb.append("<tr><td>Total failure count</td><td>").append( acb.getTotalFailureCount() ).append("</td></tr>\n"); |
sb.append("<tr><td>Total failure count</td><td>").append( ac.getTotalFailureCount() ).append("</td></tr>\n"); |
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sb.append("<tr><td>Total Call count</td><td>").append( acb.getTotalCallCount() ).append("</td></tr>\n"); |
sb.append("<tr><td>Total Call count</td><td>").append( ac.getTotalCallCount() ).append("</td></tr>\n"); |
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sb.append("<tr><td>Failure Percentage</td><td>").append( sbf.toString() ).append("%</td></tr>\n"); |
sb.append("<tr><td>Failure Percentage</td><td>").append( sbf.toString() ).append("%</td></tr>\n"); |
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sb.append("<tr><td>Last failure</td><td>").append( formatDate(acb.getLastFailure()) ).append("</td></tr>\n"); |
sb.append("<tr><td>Last failure</td><td>").append( formatDate(ac.getLastFailure()) ).append("</td></tr>\n"); |
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sb.append("<tr><td>Last trip</td><td>").append( formatDate(acb.getLastTrip()) ).append("</td></tr>\n"); |
sb.append("<tr><td>Last trip</td><td>").append( formatDate(ac.getLastTrip()) ).append("</td></tr>\n"); |
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sb.append("<tr><td>Last re-trip</td><td>").append( formatDate(acb.getLastRetrip()) ).append("</td></tr>\n"); |
sb.append("<tr><td>Last re-trip</td><td>").append( formatDate(ac.getLastRetrip()) ).append("</td></tr>\n"); |
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sb.append("<tr><td>Last reset</td><td>").append( formatDate(acb.getLastReset()) ).append("</td></tr>\n"); |
sb.append("<tr><td>Last reset</td><td>").append( formatDate(ac.getLastReset()) ).append("</td></tr>\n"); |
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sb.append("<tr><td>Last resetCounters</td><td>").append( formatDate(acb.getLastResetCounters()) ).append("</td></tr>\n"); |
sb.append("<tr><td>Last resetCounters</td><td>").append( formatDate(ac.getLastResetCounters()) ).append("</td></tr>\n"); |
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} |
} |
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if (breaker instanceof LoggingCircuitBreaker) { |
if (stats instanceof LoggingStatistics) { |
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LoggingCircuitBreaker lcb = (LoggingCircuitBreaker) breaker; |
LoggingStatistics ls = (LoggingStatistics) stats; |
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LinkedList<LoggingCircuitBreaker.LogEntry> list = lcb.getLog(); |
LinkedList<LoggingStatistics.LogEntry> list = ls.getLog(); |
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String headerLink = String.format("<a href=\"%s?command=log&breaker=%s\">Logging</a>", req.getRequestURI(), breaker.getName() ); |
String headerLink = String.format("<a href=\"%s?command=log&breaker=%s\">Logging</a>", req.getRequestURI(), breaker.getName() ); |
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sb.append("<tr><th colspan=\"2\">").append(headerLink).append("</th></tr>\n"); |
sb.append("<tr><th colspan=\"2\">").append(headerLink).append("</th></tr>\n"); |
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int max = list.size() > 10 ? 10 : list.size(); |
int max = list.size() > 10 ? 10 : list.size(); |
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for (int i=0; i<max; i++) { |
for (int i=0; i<max; i++) { |
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LoggingCircuitBreaker.LogEntry entry = list.get(i); |
LoggingStatistics.LogEntry entry = list.get(i); |
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sb.append("<tr><td colspan=\"2\">"); |
sb.append("<tr><td colspan=\"2\">"); |
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sb.append( entry.toString() ); |
sb.append( entry.toString() ); |
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sb.append("</td></tr>"); |
sb.append("</td></tr>"); |
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if ( !readOnly ) { |
if ( !readOnly ) { |
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sb.append( actionBuilder(uri, "reset", breaker.getName())).append("<br>\n"); |
sb.append( actionBuilder(uri, "reset", breaker.getName())).append("<br>\n"); |
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sb.append( actionBuilder(uri, "tripBreaker", breaker.getName())).append("<br>\n"); |
sb.append( actionBuilder(uri, "tripBreaker", breaker.getName())).append("<br>\n"); |
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if (breaker instanceof AccountingCircuitBreaker ) { |
if (stats instanceof AccountingStatistics ) { |
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sb.append( actionBuilder(uri, "resetCounters", breaker.getName())).append("<br>\n"); |
sb.append( actionBuilder(uri, "resetCounters", breaker.getName())).append("<br>\n"); |
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} |
} |
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if (breaker instanceof LoggingCircuitBreaker ) { |
if (stats instanceof LoggingStatistics ) { |
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sb.append( actionBuilder(uri, "clearLog", breaker.getName())).append("<br>\n"); |
sb.append( actionBuilder(uri, "clearLog", breaker.getName())).append("<br>\n"); |
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} |
} |
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} else { |
} else { |