/*******************************************************************************
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* Copyright 2011-2014 Sergey Tarasevich
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*******************************************************************************/
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package com.nostra13.universalimageloader.utils;
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import android.util.Log;
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import com.nostra13.universalimageloader.core.ImageLoader;
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/**
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* "Less-word" analog of Android {@link android.util.Log logger}
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*
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* @author Sergey Tarasevich (nostra13[at]gmail[dot]com)
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* @since 1.6.4
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*/
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public final class L {
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private static final String LOG_FORMAT = "%1$s\n%2$s";
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private static volatile boolean writeDebugLogs = false;
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private static volatile boolean writeLogs = true;
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private L() {
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}
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/**
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* Enables logger (if {@link #disableLogging()} was called before)
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*
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* @deprecated Use {@link #writeLogs(boolean) writeLogs(true)} instead
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*/
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@Deprecated
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public static void enableLogging() {
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writeLogs(true);
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}
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/**
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* Disables logger, no logs will be passed to LogCat, all log methods will do nothing
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*
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* @deprecated Use {@link #writeLogs(boolean) writeLogs(false)} instead
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*/
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@Deprecated
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public static void disableLogging() {
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writeLogs(false);
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}
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/**
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* Enables/disables detail logging of {@link ImageLoader} work.
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* Consider {@link com.nostra13.universalimageloader.utils.L#disableLogging()} to disable
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* ImageLoader logging completely (even error logs)<br />
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* Debug logs are disabled by default.
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*/
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public static void writeDebugLogs(boolean writeDebugLogs) {
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L.writeDebugLogs = writeDebugLogs;
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}
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/** Enables/disables logging of {@link ImageLoader} completely (even error logs). */
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public static void writeLogs(boolean writeLogs) {
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L.writeLogs = writeLogs;
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}
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public static void d(String message, Object... args) {
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if (writeDebugLogs) {
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log(Log.DEBUG, null, message, args);
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}
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}
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public static void i(String message, Object... args) {
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log(Log.INFO, null, message, args);
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}
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public static void w(String message, Object... args) {
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log(Log.WARN, null, message, args);
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}
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public static void e(Throwable ex) {
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log(Log.ERROR, ex, null);
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}
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public static void e(String message, Object... args) {
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log(Log.ERROR, null, message, args);
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}
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public static void e(Throwable ex, String message, Object... args) {
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log(Log.ERROR, ex, message, args);
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}
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private static void log(int priority, Throwable ex, String message, Object... args) {
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if (!writeLogs) return;
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if (args.length > 0) {
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message = String.format(message, args);
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}
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String log;
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if (ex == null) {
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log = message;
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} else {
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String logMessage = message == null ? ex.getMessage() : message;
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String logBody = Log.getStackTraceString(ex);
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log = String.format(LOG_FORMAT, logMessage, logBody);
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}
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Log.println(priority, ImageLoader.TAG, log);
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}
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}
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