libcore.io.EventLogger Maven / Gradle / Ivy
/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed 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 libcore.io;
public final class EventLogger {
/**
* Hook for customizing how events are reported.
*/
private static volatile Reporter REPORTER = new DefaultReporter();
/**
* Used to replace default Reporter for logging events. Must be non-null.
*/
public static void setReporter(Reporter reporter) {
if (reporter == null) {
throw new NullPointerException("reporter == null");
}
REPORTER = reporter;
}
/**
* Returns non-null Reporter.
*/
public static Reporter getReporter() {
return REPORTER;
}
/**
* Interface to allow customization of reporting behavior.
*/
public static interface Reporter {
public void report (int code, Object... list);
}
/**
* Default Reporter which reports events to the log.
*/
private static final class DefaultReporter implements Reporter {
@Override
public void report (int code, Object... list) {
StringBuilder sb = new StringBuilder();
sb.append(code);
for (Object o : list) {
sb.append(",");
sb.append(o.toString());
}
System.out.println(sb);
}
}
public static void writeEvent(int code, Object... list) {
getReporter().report(code, list);
}
}