How to enable logging for apache commons HttpClient on Android
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15-09-2020 - |
Question
To enable logging for apache commons HttpClient in normal Java application I used:
System.setProperty("org.apache.commons.logging.Log", "org.apache.commons.logging.impl.SimpleLog");
System.setProperty("org.apache.commons.logging.simplelog.showdatetime", "true");
System.setProperty("org.apache.commons.logging.simplelog.log.httpclient.wire", "debug");
System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.commons.httpclient", "debug");
But on android I don't see logs in LogCat.
Am I missing some thing?
Solution 2
Here is a solution (without digging into details)
Console:
adb shell setprop log.tag.httpclient.wire.header VERBOSE
adb shell setprop log.tag.httpclient.wire.content VERBOSE
Code:
java.util.logging.Logger.getLogger("httpclient.wire.header").setLevel(java.util.logging.Level.FINEST);
java.util.logging.Logger.getLogger("httpclient.wire.content").setLevel(java.util.logging.Level.FINEST);
Test:
java.util.logging.Logger.getLogger("httpclient.wire.content").log(java.util.logging.Level.CONFIG, "hola");
OTHER TIPS
Ignore my earlier comment. I found the solution on the org.apache.http logging page. Your original answer was referring to httpclient-3.x logging, and the working code for recent versions comes from http-components logging
java.util.logging.Logger.getLogger("org.apache.http.wire").setLevel(java.util.logging.Level.FINEST);
java.util.logging.Logger.getLogger("org.apache.http.headers").setLevel(java.util.logging.Level.FINEST);
System.setProperty("org.apache.commons.logging.Log", "org.apache.commons.logging.impl.SimpleLog");
System.setProperty("org.apache.commons.logging.simplelog.showdatetime", "true");
System.setProperty("org.apache.commons.logging.simplelog.log.httpclient.wire", "debug");
System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.http", "debug");
System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.http.headers", "debug");
and properties:
adb shell setprop log.tag.org.apache.http VERBOSE
adb shell setprop log.tag.org.apache.http.wire VERBOSE
adb shell setprop log.tag.org.apache.http.headers VERBOSE
The difference is in the logging tag names.
The devil is in the details. I'm running the 2.3.3 emulator and got it working with:
java.util.logging.Logger.getLogger("org.apache.http.wire").setLevel(java.util.logging.Level.FINEST);
java.util.logging.Logger.getLogger("org.apache.http.headers").setLevel(java.util.logging.Level.FINEST);
and in the adb shell
# setprop log.tag.org.apache.http.wire VERBOSE
# setprop log.tag.org.apache.http.headers VERBOSE
Thus it seems the log specifiers are different.
You just need to use
java.util.logging.Logger.getLogger(yourFullClassName).setLevel(java.util.logging.Level.All);
and
adb shell setprop log.tag.correspondingTag VERBOSE
Android use this function to get correspondingTag from class full name:
public static String loggerNameToTag(String loggerName)
{
if (loggerName == null) {
return "null";
}
int length = loggerName.length();
if (length <= 23) {
return loggerName;
}
int lastPeriod = loggerName.lastIndexOf(".");
return length - (lastPeriod + 1) <= 23 ? loggerName.substring(lastPeriod + 1) : loggerName.substring(loggerName.length() - 23);
}
so for example,I want to enable logging for “org.apache.http.impl.client.DefaultRequestDirector” class,do such things below:
String clzName = "org.apache.http.impl.client.DefaultRequestDirector";
String newClzName = loggerNameToTag(clzName);
System.out.println("className:" + clzName + " tagName is " + newClzName); //get tagName from class full name,and then it will be used in setprop
Logger jdkLogger = Logger.getLogger(clzName);
jdkLogger.setLevel(Level.ALL);
if (jdkLogger.isLoggable(Level.FINE))
{
jdkLogger.log(Level.FINE, "jdk log msg");
jdkLogger.log(Level.Fine,"tagName is")
}
And then in adb shell
setprop log.tag.DefaultRequestDirector VERBOSE