[logback-dev] [GIT] Logback: the generic, reliable, fast and flexible logging framework. branch, master, updated. v_0.9.27-20-g3c12be5
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- Log -----------------------------------------------------------------
http://git.qos.ch/gitweb/?p=logback.git;a=commit;h=3c12be5cf378d4ab92d182e1a539132cfa13d6cb
http://github.com/ceki/logback/commit/3c12be5cf378d4ab92d182e1a539132cfa13d6cb
commit 3c12be5cf378d4ab92d182e1a539132cfa13d6cb
Author: Ceki Gulcu <ceki at qos.ch>
Date: Tue Jan 18 18:06:47 2011 +0100
adding support for watching multiple files in ReconfigureOnChangeFilter
diff --git a/logback-classic/src/main/groovy/ch/qos/logback/classic/gaffer/GafferConfigurator.groovy b/logback-classic/src/main/groovy/ch/qos/logback/classic/gaffer/GafferConfigurator.groovy
index 3d7811c..7736256 100644
--- a/logback-classic/src/main/groovy/ch/qos/logback/classic/gaffer/GafferConfigurator.groovy
+++ b/logback-classic/src/main/groovy/ch/qos/logback/classic/gaffer/GafferConfigurator.groovy
@@ -15,7 +15,8 @@ package ch.qos.logback.classic.gaffer
import ch.qos.logback.classic.LoggerContext
import ch.qos.logback.core.util.ContextUtil
-import ch.qos.logback.core.CoreConstants
+
+import ch.qos.logback.core.joran.util.ConfigurationWatchListUtil
class GafferConfigurator {
@@ -28,7 +29,7 @@ class GafferConfigurator {
}
protected void informContextOfURLUsedForConfiguration(URL url) {
- context.putObject(CoreConstants.URL_OF_LAST_CONFIGURATION_VIA_JORAN, url);
+ ConfigurationWatchListUtil.updateWatchList(context, url);
}
void run(URL url) {
diff --git a/logback-classic/src/main/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.java b/logback-classic/src/main/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.java
index e72d4b3..5af7435 100644
--- a/logback-classic/src/main/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.java
+++ b/logback-classic/src/main/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.java
@@ -15,19 +15,18 @@ package ch.qos.logback.classic.turbo;
import java.io.File;
import java.net.URL;
-import java.net.URLDecoder;
+import java.util.List;
import ch.qos.logback.classic.gaffer.GafferUtil;
import ch.qos.logback.classic.util.EnvUtil;
-import ch.qos.logback.core.status.ErrorStatus;
-import ch.qos.logback.core.status.StatusManager;
+import ch.qos.logback.core.joran.spi.ConfigurationWatchList;
+import ch.qos.logback.core.joran.util.ConfigurationWatchListUtil;
import org.slf4j.Marker;
import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.classic.joran.JoranConfigurator;
-import ch.qos.logback.core.CoreConstants;
import ch.qos.logback.core.joran.spi.JoranException;
import ch.qos.logback.core.spi.FilterReply;
import ch.qos.logback.core.status.InfoStatus;
@@ -49,42 +48,26 @@ public class ReconfigureOnChangeFilter extends TurboFilter {
public final static long DEFAULT_REFRESH_PERIOD = 60 * 1000;
long refreshPeriod = DEFAULT_REFRESH_PERIOD;
- File fileToScan;
- protected long nextCheck;
- volatile long lastModified;
+ URL mainConfigurationURL;
+ protected volatile long nextCheck;
- Object lock = new Object();
+ ConfigurationWatchList cwl;
@Override
public void start() {
- URL url = (URL) context
- .getObject(CoreConstants.URL_OF_LAST_CONFIGURATION_VIA_JORAN);
- if (url != null) {
- fileToScan = convertToFile(url);
- if (fileToScan != null) {
- synchronized (lock) {
- long inSeconds = refreshPeriod / 1000;
- addInfo("Will scan for changes in file [" + fileToScan + "] every "
- + inSeconds + " seconds. ");
- lastModified = fileToScan.lastModified();
- updateNextCheck(System.currentTimeMillis());
- }
- super.start();
+ cwl = ConfigurationWatchListUtil.getConfigurationWatchList(context);
+ if (cwl != null) {
+ mainConfigurationURL = cwl.getMainURL();
+ List<File> watchList = cwl.getCopyOfFileWatchList();
+ long inSeconds = refreshPeriod / 1000;
+ addInfo("Will scan for changes in [" + watchList + "] every "
+ + inSeconds + " seconds. ");
+ synchronized (cwl) {
+ updateNextCheck(System.currentTimeMillis());
}
- } else {
- addError("Could not find URL of file to scan.");
- }
- }
-
- @SuppressWarnings("deprecation")
- File convertToFile(URL url) {
- String protocol = url.getProtocol();
- if ("file".equals(protocol)) {
- File file = new File(URLDecoder.decode(url.getFile()));
- return file;
- } else {
- addError("URL [" + url + "] is not of type file");
- return null;
+ super.start();
+ } else {
+ addWarn("Empty ConfigurationWatchList in context");
}
}
@@ -108,12 +91,14 @@ public class ReconfigureOnChangeFilter extends TurboFilter {
return FilterReply.NEUTRAL;
}
- //System.out.println(".");
- synchronized (lock) {
- boolean changed = changeDetected();
- if (changed) {
+ synchronized (cwl) {
+ if (changeDetected()) {
+ // Even though reconfiguration involves resetting the loggerContext,
+ // which clears the list of turbo filters including this instance, it is
+ // still possible for this instance to be subsequently invoked by another
+ // thread if it was already executing when the context was reset.
+ disableSubsequentReconfiguration();
detachReconfigurationToNewThread();
-
}
}
@@ -123,14 +108,8 @@ public class ReconfigureOnChangeFilter extends TurboFilter {
// by detaching reconfiguration to a new thread, we release the various
// locks held by the current thread, in particular, the AppenderAttachable
// reader lock.
-
private void detachReconfigurationToNewThread() {
- // Even though this method resets the loggerContext, which clears the
- // list of turbo filters including this instance, it is still possible
- // for this instance to be subsequently invoked by another thread if it
- // was already executing when the context was reset.
- disableSubsequentRecofiguration();
- addInfo("Detected change in [" + fileToScan + "]");
+ addInfo("Detected change in [" + cwl.getCopyOfFileWatchList() + "]");
addInfo("Resetting and reconfiguring context [" + context.getName() + "]");
new ReconfiguringThread().start();
}
@@ -139,23 +118,17 @@ public class ReconfigureOnChangeFilter extends TurboFilter {
nextCheck = now + refreshPeriod;
}
- // This method is synchronized to prevent near-simultaneous re-configurations
-
protected boolean changeDetected() {
long now = System.currentTimeMillis();
if (now >= nextCheck) {
updateNextCheck(now);
- return (lastModified != fileToScan.lastModified() && lastModified != SENTINEL);
+ return cwl.changeDetected();
}
return false;
}
- String currentThreadName() {
- return Thread.currentThread().getName();
- }
-
- void disableSubsequentRecofiguration() {
- lastModified = SENTINEL;
+ void disableSubsequentReconfiguration() {
+ nextCheck = Long.MAX_VALUE;
}
public long getRefreshPeriod() {
@@ -169,22 +142,21 @@ public class ReconfigureOnChangeFilter extends TurboFilter {
class ReconfiguringThread extends Thread {
public void run() {
LoggerContext lc = (LoggerContext) context;
-
- if (fileToScan.toString().endsWith("groovy")) {
+ if (mainConfigurationURL.toString().endsWith("groovy")) {
if (EnvUtil.isGroovyAvailable()) {
lc.reset();
// avoid directly referring to GafferConfigurator so as to avoid
// loading groovy.lang.GroovyObject . See also http://jira.qos.ch/browse/LBCLASSIC-214
- GafferUtil.runGafferConfiguratorOn(lc, this, fileToScan);
+ GafferUtil.runGafferConfiguratorOn(lc, this, mainConfigurationURL);
} else {
addError("Groovy classes are not available on the class path. ABORTING INITIALIZATION.");
}
- } else if (fileToScan.toString().endsWith("xml")) {
+ } else if (mainConfigurationURL.toString().endsWith("xml")) {
JoranConfigurator jc = new JoranConfigurator();
jc.setContext(context);
lc.reset();
try {
- jc.doConfigure(fileToScan);
+ jc.doConfigure(mainConfigurationURL);
lc.getStatusManager().add(
new InfoStatus("done resetting the logging context", this));
} catch (JoranException e) {
diff --git a/logback-classic/src/test/java/ch/qos/logback/classic/joran/JoranConfiguratorTest.java b/logback-classic/src/test/java/ch/qos/logback/classic/joran/JoranConfiguratorTest.java
index 4fbbf58..36e86af 100644
--- a/logback-classic/src/test/java/ch/qos/logback/classic/joran/JoranConfiguratorTest.java
+++ b/logback-classic/src/test/java/ch/qos/logback/classic/joran/JoranConfiguratorTest.java
@@ -295,7 +295,7 @@ public class JoranConfiguratorTest {
logger.debug("after " + i);
}
- // StatusPrinter.print(loggerContext);
+ StatusPrinter.print(loggerContext);
StatusChecker checker = new StatusChecker(loggerContext);
assertTrue(checker.isErrorFree());
assertTrue(checker.containsMatch("Resetting and reconfiguring context"));
diff --git a/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeTest.java b/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeTest.java
index d1e472c..ee96b45 100644
--- a/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeTest.java
+++ b/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeTest.java
@@ -19,9 +19,9 @@ import static org.junit.Assert.assertTrue;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
-import java.net.URL;
import ch.qos.logback.classic.gaffer.GafferConfigurator;
+import ch.qos.logback.core.joran.util.ConfigurationWatchListUtil;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
@@ -108,15 +108,6 @@ public class ReconfigureOnChangeTest {
return rArray;
}
- @Test
- // See http://jira.qos.ch/browse/LBCORE-119
- public void fileToURLAndBack() throws MalformedURLException {
- File file = new File("a b.xml");
- URL url = file.toURI().toURL();
- ReconfigureOnChangeFilter rocf = new ReconfigureOnChangeFilter();
- File back = rocf.convertToFile(url);
- assertEquals(file.getName(), back.getName());
- }
// Tests whether ConfigurationAction is installing ReconfigureOnChangeFilter
@Test
@@ -187,8 +178,7 @@ public class ReconfigureOnChangeTest {
ReconfigureOnChangeFilter rocf = new ReconfigureOnChangeFilter();
rocf.setContext(loggerContext);
File file = new File(SCAN1_FILE_AS_STR);
- loggerContext.putObject(CoreConstants.URL_OF_LAST_CONFIGURATION_VIA_JORAN,
- file.toURI().toURL());
+ ConfigurationWatchListUtil.updateWatchList(loggerContext, file.toURI().toURL());
rocf.start();
return rocf;
}
diff --git a/logback-core/src/main/java/ch/qos/logback/core/CoreConstants.java b/logback-core/src/main/java/ch/qos/logback/core/CoreConstants.java
index 181da69..0989645 100644
--- a/logback-core/src/main/java/ch/qos/logback/core/CoreConstants.java
+++ b/logback-core/src/main/java/ch/qos/logback/core/CoreConstants.java
@@ -110,9 +110,7 @@ public class CoreConstants {
static public final String SEE_FNP_NOT_SET = "See also http://logback.qos.ch/codes.html#tbr_fnp_not_set";
- // The url used for the last configuration via Joran. If a file is used for the
- // configuration, then file.getURL() is registered
- public static String URL_OF_LAST_CONFIGURATION_VIA_JORAN = "URL_OF_LAST_CONFIGURATION_VIA_JORAN";
+ public static String CONFIGURATION_WATCH_LIST = "CONFIGURATION_WATCH_LIST";
/**
diff --git a/logback-core/src/main/java/ch/qos/logback/core/joran/GenericConfigurator.java b/logback-core/src/main/java/ch/qos/logback/core/joran/GenericConfigurator.java
index be9f466..8f16313 100644
--- a/logback-core/src/main/java/ch/qos/logback/core/joran/GenericConfigurator.java
+++ b/logback-core/src/main/java/ch/qos/logback/core/joran/GenericConfigurator.java
@@ -21,9 +21,9 @@ import java.net.URL;
import java.net.URLConnection;
import java.util.List;
+import ch.qos.logback.core.joran.util.ConfigurationWatchListUtil;
import org.xml.sax.InputSource;
-import ch.qos.logback.core.CoreConstants;
import ch.qos.logback.core.joran.event.SaxEvent;
import ch.qos.logback.core.joran.event.SaxEventRecorder;
import ch.qos.logback.core.joran.spi.DefaultNestedComponentRegistry;
@@ -86,9 +86,9 @@ public abstract class GenericConfigurator extends ContextAwareBase {
}
protected void informContextOfURLUsedForConfiguration(URL url) {
- getContext().putObject(CoreConstants.URL_OF_LAST_CONFIGURATION_VIA_JORAN, url);
+ ConfigurationWatchListUtil.updateWatchList(context, url);
}
-
+
final public void doConfigure(InputStream inputStream) throws JoranException {
doConfigure(new InputSource(inputStream));
}
diff --git a/logback-core/src/main/java/ch/qos/logback/core/joran/spi/ConfigurationWatchList.java b/logback-core/src/main/java/ch/qos/logback/core/joran/spi/ConfigurationWatchList.java
new file mode 100644
index 0000000..953f890
--- /dev/null
+++ b/logback-core/src/main/java/ch/qos/logback/core/joran/spi/ConfigurationWatchList.java
@@ -0,0 +1,76 @@
+package ch.qos.logback.core.joran.spi;
+
+
+import ch.qos.logback.core.spi.ContextAwareBase;
+
+import java.io.File;
+import java.net.URL;
+import java.net.URLDecoder;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @author Ceki Gücü
+ */
+public class ConfigurationWatchList extends ContextAwareBase {
+
+ URL mainURL;
+ List<File> fileWatchList = new ArrayList<File>();
+ List<Long> lastModifiedList = new ArrayList<Long>();
+
+ public void clear() {
+ this.mainURL = null;
+ lastModifiedList.clear();
+ fileWatchList.clear();
+ }
+
+ public void setMainURL(URL mainURL) {
+ this.mainURL = mainURL;
+ addAsFileToWatch(mainURL);
+ }
+
+ private void addAsFileToWatch(URL url) {
+ File file = convertToFile(url);
+ if (file != null) {
+ fileWatchList.add(file);
+ lastModifiedList.add(file.lastModified());
+ }
+ }
+
+ void addToWatchList(URL url) {
+ addAsFileToWatch(url);
+ }
+
+ public URL getMainURL() {
+ return mainURL;
+ }
+
+ public List<File> getCopyOfFileWatchList() {
+ return new ArrayList<File>(fileWatchList);
+ }
+ public boolean changeDetected() {
+ int len = fileWatchList.size();
+ for (int i = 0; i < len; i++) {
+ long lastModified = lastModifiedList.get(i);
+ File file = fileWatchList.get(i);
+ if (lastModified != file.lastModified()) {
+ return true;
+ }
+ }
+ return false;
+ //return (lastModified != fileToScan.lastModified() && lastModified != SENTINEL);
+ }
+
+ @SuppressWarnings("deprecation")
+ File convertToFile(URL url) {
+ String protocol = url.getProtocol();
+ if ("file".equals(protocol)) {
+ File file = new File(URLDecoder.decode(url.getFile()));
+ return file;
+ } else {
+ addError("URL [" + url + "] is not of type file");
+ return null;
+ }
+ }
+
+}
diff --git a/logback-core/src/main/java/ch/qos/logback/core/joran/util/ConfigurationWatchListUtil.java b/logback-core/src/main/java/ch/qos/logback/core/joran/util/ConfigurationWatchListUtil.java
new file mode 100644
index 0000000..278e5f4
--- /dev/null
+++ b/logback-core/src/main/java/ch/qos/logback/core/joran/util/ConfigurationWatchListUtil.java
@@ -0,0 +1,30 @@
+package ch.qos.logback.core.joran.util;
+
+import ch.qos.logback.core.Context;
+import ch.qos.logback.core.CoreConstants;
+import ch.qos.logback.core.joran.spi.ConfigurationWatchList;
+
+import java.net.URL;
+
+/**
+ * @author Ceki Gücü
+ */
+public class ConfigurationWatchListUtil {
+
+
+ public static void updateWatchList(Context context, URL url) {
+ ConfigurationWatchList cwl = getConfigurationWatchList(context);
+ if(cwl == null) {
+ cwl = new ConfigurationWatchList();
+ cwl.setContext(context);
+ context.putObject(CoreConstants.CONFIGURATION_WATCH_LIST, cwl);
+ } else {
+ cwl.clear();
+ }
+ cwl.setMainURL(url);
+ }
+
+ public static ConfigurationWatchList getConfigurationWatchList(Context context) {
+ return (ConfigurationWatchList) context.getObject(CoreConstants.CONFIGURATION_WATCH_LIST);
+ }
+}
diff --git a/logback-core/src/test/java/ch/qos/logback/core/joran/spi/ConfigurationWatchListTest.java b/logback-core/src/test/java/ch/qos/logback/core/joran/spi/ConfigurationWatchListTest.java
new file mode 100644
index 0000000..40031fc
--- /dev/null
+++ b/logback-core/src/test/java/ch/qos/logback/core/joran/spi/ConfigurationWatchListTest.java
@@ -0,0 +1,25 @@
+package ch.qos.logback.core.joran.spi;
+
+import org.junit.Test;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import java.net.URL;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * @author Ceki Gücü
+ */
+public class ConfigurationWatchListTest {
+
+ @Test
+ // See http://jira.qos.ch/browse/LBCORE-119
+ public void fileToURLAndBack() throws MalformedURLException {
+ File file = new File("a b.xml");
+ URL url = file.toURI().toURL();
+ ConfigurationWatchList cwl = new ConfigurationWatchList();
+ File back = cwl.convertToFile(url);
+ assertEquals(file.getName(), back.getName());
+ }
+}
diff --git a/logback-core/src/test/java/ch/qos/logback/core/joran/spi/PackageTest.java b/logback-core/src/test/java/ch/qos/logback/core/joran/spi/PackageTest.java
index 92bd15a..66286cd 100644
--- a/logback-core/src/test/java/ch/qos/logback/core/joran/spi/PackageTest.java
+++ b/logback-core/src/test/java/ch/qos/logback/core/joran/spi/PackageTest.java
@@ -19,7 +19,7 @@ import org.junit.runners.Suite.SuiteClasses;
@RunWith(Suite.class)
@SuiteClasses( { PatternTest.class, SimpleRuleStoreTest.class,
- NoAutoStartUtilTest.class,
+ NoAutoStartUtilTest.class, ConfigurationWatchListTest.class,
DefaultNestedComponentRegistryTest.class, CaseCombinatorTest.class })
public class PackageTest {
}
diff --git a/logback-site/src/site/pages/codes.html b/logback-site/src/site/pages/codes.html
index 72d04d1..e80c770 100644
--- a/logback-site/src/site/pages/codes.html
+++ b/logback-site/src/site/pages/codes.html
@@ -370,8 +370,9 @@
href="http://technet.microsoft.com/en-us/sysinternals/bb896653">Process
Explorer</a> can help you locate the processes which reference a
given file (Find -> Find Handle or DLL). On Linux, you can use
- the <a href="http://www.manpagez.com/man/8/lsof/">lsof</a> command
- to find which process has a file open.</p>
+ the <code><a href="http://www.manpagez.com/man/8/lsof/">lsof </a>
+ <em>pathToFile</em></code> command to find which process has the
+ file given by <em>pathToFile</em> open. </p>
<p>In practice, it can be hard to ensure that there are no file
handle references to log files. It can be easier to avoid file
diff --git a/test.txt b/test.txt
deleted file mode 100644
index e69de29..0000000
-----------------------------------------------------------------------
Summary of changes:
.../classic/gaffer/GafferConfigurator.groovy | 5 +-
.../classic/turbo/ReconfigureOnChangeFilter.java | 94 +++++++-------------
.../classic/joran/JoranConfiguratorTest.java | 2 +-
.../classic/turbo/ReconfigureOnChangeTest.java | 14 +---
.../java/ch/qos/logback/core/CoreConstants.java | 4 +-
.../logback/core/joran/GenericConfigurator.java | 6 +-
.../core/joran/spi/ConfigurationWatchList.java | 76 ++++++++++++++++
.../joran/util/ConfigurationWatchListUtil.java | 30 ++++++
.../core/joran/spi/ConfigurationWatchListTest.java | 25 +++++
.../ch/qos/logback/core/joran/spi/PackageTest.java | 2 +-
logback-site/src/site/pages/codes.html | 5 +-
11 files changed, 178 insertions(+), 85 deletions(-)
create mode 100644 logback-core/src/main/java/ch/qos/logback/core/joran/spi/ConfigurationWatchList.java
create mode 100644 logback-core/src/main/java/ch/qos/logback/core/joran/util/ConfigurationWatchListUtil.java
create mode 100644 logback-core/src/test/java/ch/qos/logback/core/joran/spi/ConfigurationWatchListTest.java
delete mode 100644 test.txt
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