diff options
Diffstat (limited to 'tags/java-M1-20060522/java/sca/common/src/main/java/org/apache/tuscany/common/monitor')
5 files changed, 0 insertions, 367 deletions
diff --git a/tags/java-M1-20060522/java/sca/common/src/main/java/org/apache/tuscany/common/monitor/LogLevel.java b/tags/java-M1-20060522/java/sca/common/src/main/java/org/apache/tuscany/common/monitor/LogLevel.java deleted file mode 100644 index 45134c7556..0000000000 --- a/tags/java-M1-20060522/java/sca/common/src/main/java/org/apache/tuscany/common/monitor/LogLevel.java +++ /dev/null @@ -1,38 +0,0 @@ -/** - * - * Copyright 2005 The Apache Software Foundation or its licensors, as applicable. - * - * 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 org.apache.tuscany.common.monitor; - -import static java.lang.annotation.ElementType.METHOD; -import java.lang.annotation.Retention; -import static java.lang.annotation.RetentionPolicy.RUNTIME; -import java.lang.annotation.Target; - -/** - * Annotation that can be applied to methods in a monitoring interface - * to indicate to logging frameworks the severity of the event. - * - * @version $Rev$ $Date$ - */ -@Target({METHOD}) -@Retention(RUNTIME) -public @interface LogLevel { - - /** - * The log level as specified by {@link java.util.logging.Level}. - */ - @SuppressWarnings({"JavaDoc"}) String value(); -} diff --git a/tags/java-M1-20060522/java/sca/common/src/main/java/org/apache/tuscany/common/monitor/MonitorFactory.java b/tags/java-M1-20060522/java/sca/common/src/main/java/org/apache/tuscany/common/monitor/MonitorFactory.java deleted file mode 100644 index aa92092005..0000000000 --- a/tags/java-M1-20060522/java/sca/common/src/main/java/org/apache/tuscany/common/monitor/MonitorFactory.java +++ /dev/null @@ -1,35 +0,0 @@ -/** - * - * Copyright 2005 The Apache Software Foundation or its licensors, as applicable. - * - * 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 org.apache.tuscany.common.monitor; - -/** - * A MonitorFactory creates implementations of components' monitor interfaces - * that interface with a its monitoring scheme. For example, a implementation - * may create versions that emit appropriate logging events or which send - * notifications to a management API. - * - * @version $Rev$ $Date$ - */ -public interface MonitorFactory { - /** - * Return a monitor for a component's monitor interface. - * - * @param monitorInterface the component's monitoring interface - * @return an implementation of the monitoring interface; will not be null - */ - <T> T getMonitor(Class<T> monitorInterface); -} diff --git a/tags/java-M1-20060522/java/sca/common/src/main/java/org/apache/tuscany/common/monitor/impl/InvalidLevelException.java b/tags/java-M1-20060522/java/sca/common/src/main/java/org/apache/tuscany/common/monitor/impl/InvalidLevelException.java deleted file mode 100644 index baf4e8b7cc..0000000000 --- a/tags/java-M1-20060522/java/sca/common/src/main/java/org/apache/tuscany/common/monitor/impl/InvalidLevelException.java +++ /dev/null @@ -1,60 +0,0 @@ -/** - * - * Copyright 2005 The Apache Software Foundation or its licensors, as applicable. - * - * 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 org.apache.tuscany.common.monitor.impl; - -/** - * Exception indicating an invalid log level has been passed. - * - * @version $Rev$ $Date$ - */ -public class InvalidLevelException extends IllegalArgumentException { - private static final long serialVersionUID = 7767234706427841915L; - private final String method; - private final String level; - - /** - * Constructor specifying the method name and the level affected. - * - * @param method the name of the method being monitored - * @param level the invalid log level value - */ - public InvalidLevelException(String method, String level) { - super(); - this.method = method; - this.level = level; - } - - /** - * Returns the name of the method being monitored. - * @return the name of the method being monitored - */ - public String getMethod() { - return method; - } - - /** - * Returns the invalid log level specified. - * @return the invalid log level that was specified - */ - public String getLevel() { - return level; - } - - public String getMessage() { - return "Invalid level for method " + method + " : " + level; - } -} diff --git a/tags/java-M1-20060522/java/sca/common/src/main/java/org/apache/tuscany/common/monitor/impl/JavaLoggingMonitorFactory.java b/tags/java-M1-20060522/java/sca/common/src/main/java/org/apache/tuscany/common/monitor/impl/JavaLoggingMonitorFactory.java deleted file mode 100644 index daef77d4ae..0000000000 --- a/tags/java-M1-20060522/java/sca/common/src/main/java/org/apache/tuscany/common/monitor/impl/JavaLoggingMonitorFactory.java +++ /dev/null @@ -1,186 +0,0 @@ -/** - * - * Copyright 2005 The Apache Software Foundation or its licensors, as applicable. - * - * 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 org.apache.tuscany.common.monitor.impl; - -import java.lang.ref.WeakReference; -import java.lang.reflect.InvocationHandler; -import java.lang.reflect.Method; -import java.lang.reflect.Proxy; -import java.util.HashMap; -import java.util.Map; -import java.util.Properties; -import java.util.WeakHashMap; -import java.util.ResourceBundle; -import java.util.Locale; -import java.util.MissingResourceException; -import java.util.logging.Level; -import java.util.logging.Logger; -import java.util.logging.LogRecord; - -import org.apache.tuscany.common.monitor.LogLevel; -import org.apache.tuscany.common.monitor.MonitorFactory; - -/** - * A factory for monitors that forwards events to a {@link java.util.logging.Logger Java Logging (JSR47) Logger}. - * - * @version $Rev$ $Date$ - * @see java.util.logging - */ -public class JavaLoggingMonitorFactory implements MonitorFactory { - private final String bundleName; - private final Level defaultLevel; - private final Map<String, Level> levels; - - private final Map<Class<?>, WeakReference<?>> proxies = new WeakHashMap<Class<?>, WeakReference<?>>(); - - /** - * Construct a MonitorFactory that will monitor the specified methods at the specified levels - * and generate messages using java.util.logging. - * <p/> - * The supplied Properties can be used to specify custom log levels for specific monitor - * methods. The key should be the method name in form returned by - * <code>Class.getName() + '#' + Method.getName()</code> and the value the log level to use - * as defined by {@link java.util.logging.Level}. - * - * @param levels definition of custom levels for specific monitored methods - * @param defaultLevel the default log level to use - * @param bundleName the name of a resource bundle that will be passed to the logger - * @see java.util.logging.Logger - */ - public JavaLoggingMonitorFactory(Properties levels, Level defaultLevel, String bundleName) { - this.defaultLevel = defaultLevel; - this.bundleName = bundleName; - this.levels = new HashMap<String, Level>(levels.size()); - for (Map.Entry<Object, Object> entry : levels.entrySet()) { - String method = (String) entry.getKey(); - String level = (String) entry.getValue(); - try { - this.levels.put(method, Level.parse(level)); - } catch (IllegalArgumentException e) { - throw new InvalidLevelException(method, level); - } - } - } - - public synchronized <T> T getMonitor(Class<T> monitorInterface) { - T proxy = getCachedMonitor(monitorInterface); - if (proxy == null) { - proxy = createMonitor(monitorInterface, bundleName); - proxies.put(monitorInterface, new WeakReference<T>(proxy)); - } - return proxy; - } - - private <T>T getCachedMonitor(Class<T> monitorInterface) { - WeakReference<?> ref = proxies.get(monitorInterface); - return (ref != null) ? monitorInterface.cast(ref.get()) : null; - } - - private <T>T createMonitor(Class<T> monitorInterface, String bundleName) { - String className = monitorInterface.getName(); - Logger logger = Logger.getLogger(className); - Method[] methods = monitorInterface.getMethods(); - Map<String, Level> levels = new HashMap<String, Level>(methods.length); - for (Method method : methods) { - String key = className + '#' + method.getName(); - Level level = this.levels.get(key); - - // if not specified the in config properties, look for an annotation on the method - if (level == null) { - LogLevel annotation = method.getAnnotation(LogLevel.class); - if (annotation != null && annotation.value() != null) { - try { - level = Level.parse(annotation.value()); - } catch (IllegalArgumentException e) { - // bad value, just use the default - level = defaultLevel; - } - } - } - if (level == null) { - level = defaultLevel; - } - levels.put(method.getName(), level); - } - - ResourceBundle bundle = locateBundle(monitorInterface, bundleName); - - InvocationHandler handler = new LoggingHandler(logger, levels, bundle); - return monitorInterface.cast(Proxy.newProxyInstance(monitorInterface.getClassLoader(), new Class<?>[]{monitorInterface}, handler)); - } - - private static <T>ResourceBundle locateBundle(Class<T> monitorInterface, String bundleName) { - Locale locale = Locale.getDefault(); - ClassLoader cl = monitorInterface.getClassLoader(); - String packageName = monitorInterface.getPackage().getName(); - while (true) { - try { - return ResourceBundle.getBundle(packageName + '.' + bundleName, locale, cl); - } catch (MissingResourceException e) { - } - int index = packageName.lastIndexOf('.'); - if (index == -1) { - break; - } - packageName = packageName.substring(0, index); - } - try { - return ResourceBundle.getBundle(bundleName, locale, cl); - } catch (Exception e) { - return null; - } - } - - private static final class LoggingHandler implements InvocationHandler { - private final Logger logger; - private final Map<String, Level> methodLevels; - private final ResourceBundle bundle; - - public LoggingHandler(Logger logger, Map<String, Level> methodLevels, ResourceBundle bundle) { - this.logger = logger; - this.methodLevels = methodLevels; - this.bundle = bundle; - } - - public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { - String sourceMethod = method.getName(); - Level level = methodLevels.get(sourceMethod); - if (level != null && logger.isLoggable(level)) { - // construct the key for the resource bundle - String className = logger.getName(); - String key = className + '#' + sourceMethod; - - LogRecord logRecord = new LogRecord(level, key); - logRecord.setLoggerName(className); - logRecord.setSourceClassName(className); - logRecord.setSourceMethodName(sourceMethod); - logRecord.setParameters(args); - if (args != null) { - for (Object o : args) { - if (o instanceof Throwable) { - logRecord.setThrown((Throwable) o); - break; - } - } - } - logRecord.setResourceBundle(bundle); - logger.log(logRecord); - } - return null; - } - } -} diff --git a/tags/java-M1-20060522/java/sca/common/src/main/java/org/apache/tuscany/common/monitor/impl/NullMonitorFactory.java b/tags/java-M1-20060522/java/sca/common/src/main/java/org/apache/tuscany/common/monitor/impl/NullMonitorFactory.java deleted file mode 100644 index 827aeec84c..0000000000 --- a/tags/java-M1-20060522/java/sca/common/src/main/java/org/apache/tuscany/common/monitor/impl/NullMonitorFactory.java +++ /dev/null @@ -1,48 +0,0 @@ -/** - * - * Copyright 2005 The Apache Software Foundation or its licensors, as applicable. - * - * 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 org.apache.tuscany.common.monitor.impl; - -import java.lang.reflect.InvocationHandler; -import java.lang.reflect.Method; -import java.lang.reflect.Proxy; - -import org.apache.tuscany.common.monitor.MonitorFactory; - -/** - * Implementation of a {@link MonitorFactory} that produces implementations that simply return. - * - * @version $Rev$ $Date$ - */ -public class NullMonitorFactory implements MonitorFactory { - public <T> T getMonitor(Class<T> monitorInterface) { - /* - * This uses a reflection proxy to implement the monitor interface which - * is a simple but perhaps not very performant solution. Performance - * might be improved by code generating an implementation with empty methods. - */ - return monitorInterface.cast(Proxy.newProxyInstance(monitorInterface.getClassLoader(), new Class<?>[]{monitorInterface}, NULL_MONITOR)); - } - - /** - * Singleton wire hander that does nothing. - */ - private static final InvocationHandler NULL_MONITOR = new InvocationHandler() { - public Object invoke(Object proxy, Method method, Object[] args) { - return null; - } - }; -} |