/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.openejb.resource.jdbc.logging;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.concurrent.TimeUnit;
public final class TimeWatcherExecutor {
private TimeWatcherExecutor() {
// no-op
}
public static String inlineStack(final String[] acceptedPackages) {
if (acceptedPackages == null) {
return "";
}
final Throwable t = new Exception().fillInStackTrace();
final StringBuilder inlinedStack = new StringBuilder();
for (final StackTraceElement elt : t.getStackTrace()) {
final String className = elt.getClassName();
for (final String p : acceptedPackages) {
if (className.startsWith(p)) {
inlinedStack.append(" -> ")
.append(className).append('.')
.append(elt.getMethodName()).append(':').append(elt.getLineNumber());
break;
}
}
}
return inlinedStack.toString();
}
public static TimerWatcherResult execute(final Method mtd, final Object instance, final Object[] args, final boolean watch) {
final long start = (watch) ? System.nanoTime() : 0;
try {
final Object result = mtd.invoke(instance, args);
return new TimerWatcherResult(start, result, null);
} catch (final InvocationTargetException ite) {
return new TimerWatcherResult(start, null, ite.getCause());
} catch (final Throwable throwable) {
return new TimerWatcherResult(start, null, throwable);
}
}
public static class TimerWatcherResult {
private final Object result;
private final Throwable throwable;
private final long duration;
public TimerWatcherResult(final long start, final Object result, final Throwable throwable) {
this.duration = (start == 0) ? 0 : TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - start);
this.result = result;
this.throwable = throwable;
}
public String format(final String query) {
String message = query + " --> " + this.getDuration() + "ms";
if (throwable != null) {
message += " - FAILED";
}
return message;
}
public Object getResult() {
return result;
}
public long getDuration() {
return duration;
}
public Throwable getThrowable() {
return throwable;
}
}
}