/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.logging;
import static org.jboss.as.logging.AsyncHandlerResourceDefinition.SUBHANDLERS;
import static org.jboss.as.logging.CommonAttributes.ENABLED;
import static org.jboss.as.logging.CommonAttributes.ENCODING;
import static org.jboss.as.logging.CommonAttributes.FILE;
import static org.jboss.as.logging.CommonAttributes.FILTER;
import static org.jboss.as.logging.CommonAttributes.FILTER_SPEC;
import static org.jboss.as.logging.CommonAttributes.FORMATTER;
import static org.jboss.as.logging.CommonAttributes.HANDLER_NAME;
import static org.jboss.as.logging.CommonAttributes.LEVEL;
import static org.jboss.as.logging.CustomHandlerResourceDefinition.CLASS;
import static org.jboss.as.logging.CustomHandlerResourceDefinition.MODULE;
import static org.jboss.as.logging.CustomHandlerResourceDefinition.PROPERTIES;
import static org.jboss.as.logging.Logging.createOperationFailure;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.logging.Handler;
import org.apache.log4j.Appender;
import org.jboss.as.controller.AttributeDefinition;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.OperationStepHandler;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.logging.logmanager.Log4jAppenderHandler;
import org.jboss.dmr.ModelNode;
import org.jboss.dmr.Property;
import org.jboss.logmanager.LogContext;
import org.jboss.logmanager.Logger;
import org.jboss.logmanager.Logger.AttachmentKey;
import org.jboss.logmanager.config.FormatterConfiguration;
import org.jboss.logmanager.config.HandlerConfiguration;
import org.jboss.logmanager.config.LogContextConfiguration;
import org.jboss.logmanager.config.PojoConfiguration;
import org.jboss.logmanager.config.PropertyConfigurable;
import org.jboss.logmanager.formatters.PatternFormatter;
import org.jboss.modules.ModuleIdentifier;
import org.jboss.modules.ModuleLoadException;
import org.jboss.modules.ModuleLoader;
/**
* @author <a href="mailto:david.lloyd@redhat.com">David M. Lloyd</a>
* @author <a href="mailto:jperkins@redhat.com">James R. Perkins</a>
*/
final class HandlerOperations {
private static final AttachmentKey<Map<String, String>> DISABLED_HANDLERS_KEY = new AttachmentKey<Map<String, String>>();
private static final Object HANDLER_LOCK = new Object();
/**
* A step handler for updating logging handler properties.
*/
static class HandlerUpdateOperationStepHandler extends LoggingOperations.LoggingUpdateOperationStepHandler {
private final AttributeDefinition[] attributes;
protected HandlerUpdateOperationStepHandler() {
this.attributes = null;
}
protected HandlerUpdateOperationStepHandler(final AttributeDefinition... attributes) {
this.attributes = attributes;
}
@Override
public void updateModel(final ModelNode operation, final ModelNode model) throws OperationFailedException {
for (AttributeDefinition attribute : attributes) {
// Filter attribute needs to be converted to filter spec
if (CommonAttributes.FILTER.equals(attribute)) {
final ModelNode filter = CommonAttributes.FILTER.validateOperation(operation);
if (filter.isDefined()) {
final String value = Filters.filterToFilterSpec(filter);
model.get(CommonAttributes.FILTER_SPEC.getName()).set(value);
}
} else {
attribute.validateAndSet(operation, model);
}
}
}
@Override
public final void performRuntime(final OperationContext context, final ModelNode operation, final LogContextConfiguration logContextConfiguration, final String name, final ModelNode model) throws OperationFailedException {
final HandlerConfiguration configuration = logContextConfiguration.getHandlerConfiguration(name);
if (configuration == null) {
throw createOperationFailure(LoggingMessages.MESSAGES.handlerConfigurationNotFound(name));
}
if (attributes != null) {
boolean restartRequired = false;
boolean reloadRequired = false;
for (AttributeDefinition attribute : attributes) {
handleProperty(attribute, context, model, logContextConfiguration, configuration);
restartRequired = restartRequired || Logging.requiresRestart(attribute.getFlags());
reloadRequired = reloadRequired || Logging.requiresReload(attribute.getFlags());
}
if (restartRequired) {
context.restartRequired();
} else if (reloadRequired) {
context.reloadRequired();
}
}
performRuntime(context, configuration, name, model);
}
public void performRuntime(final OperationContext context, final HandlerConfiguration configuration, final String name, final ModelNode model) throws OperationFailedException {
// No-op by default
}
}
/**
* A step handler for add operations of logging handlers. Adds default properties to the handler configuration.
*/
static class HandlerAddOperationStepHandler extends LoggingOperations.LoggingAddOperationStepHandler {
private final String[] constructionProperties;
private final AttributeDefinition[] attributes;
private final Class<? extends Handler> type;
protected HandlerAddOperationStepHandler(final Class<? extends Handler> type, final AttributeDefinition[] attributes) {
this.type = type;
this.constructionProperties = null;
this.attributes = attributes;
}
protected HandlerAddOperationStepHandler(final Class<? extends Handler> type, final AttributeDefinition[] attributes, final ConfigurationProperty<?>... constructionProperties) {
this.type = type;
this.attributes = attributes;
final List<String> names = new ArrayList<String>();
for (ConfigurationProperty<?> prop : constructionProperties) {
names.add(prop.getPropertyName());
}
this.constructionProperties = names.toArray(new String[names.size()]);
}
@Override
public void updateModel(final ModelNode operation, final ModelNode model) throws OperationFailedException {
for (AttributeDefinition attribute : attributes) {
// Filter attribute needs to be converted to filter spec
if (CommonAttributes.FILTER.equals(attribute)) {
final ModelNode filter = CommonAttributes.FILTER.validateOperation(operation);
if (filter.isDefined()) {
final String value = Filters.filterToFilterSpec(filter);
model.get(CommonAttributes.FILTER_SPEC.getName()).set(value);
}
} else {
attribute.validateAndSet(operation, model);
}
}
}
@Override
public void performRuntime(final OperationContext context, final ModelNode operation, final LogContextConfiguration logContextConfiguration, final String name, final ModelNode model) throws OperationFailedException {
HandlerConfiguration configuration = logContextConfiguration.getHandlerConfiguration(name);
final boolean exists = configuration != null;
if (!exists) {
LoggingLogger.ROOT_LOGGER.tracef("Adding handler '%s' at '%s'", name, LoggingOperations.getAddress(operation));
configuration = createHandlerConfiguration(context, model, name, logContextConfiguration);
}
for (AttributeDefinition attribute : attributes) {
// CLASS and MODULE should be ignored
final boolean skip;
if ((attribute.equals(CLASS) || attribute.equals(MODULE)) || attribute.equals(FILTER)) {
skip = true;
} else {
// No need to change values that are equal
skip = (exists && equalValue(attribute, context, model, logContextConfiguration, configuration));
}
if (!skip)
handleProperty(attribute, context, model, logContextConfiguration, configuration);
}
}
protected HandlerConfiguration createHandlerConfiguration(final OperationContext context,
final ModelNode model, final String name,
final LogContextConfiguration logContextConfiguration) throws OperationFailedException {
final String className;
final String moduleName;
// Assume if the type is null we are using the MODULE and CLASS attributes
if (type == null) {
className = CLASS.resolveModelAttribute(context, model).asString();
moduleName = MODULE.resolveModelAttribute(context, model).asString();
} else {
className = type.getName();
moduleName = null;
}
final HandlerConfiguration configuration;
if (moduleName != null) {
// Check if this is a log4j appender
final ModuleLoader moduleLoader = ModuleLoader.forClass(HandlerOperations.class);
final ModuleIdentifier id = ModuleIdentifier.create(moduleName);
try {
final Class<?> actualClass = Class.forName(className, false, moduleLoader.loadModule(id).getClassLoader());
if (Appender.class.isAssignableFrom(actualClass)) {
// Check for construction parameters
if (constructionProperties == null) {
logContextConfiguration.addPojoConfiguration(moduleName, className, name);
} else {
logContextConfiguration.addPojoConfiguration(moduleName, className, name, constructionProperties);
}
configuration = logContextConfiguration.addHandlerConfiguration("org.jboss.as.logging", Log4jAppenderHandler.class.getName(), name);
configuration.addPostConfigurationMethod("activate");
configuration.setPropertyValueString("appender", name);
} else {
// Check for construction parameters
if (constructionProperties == null) {
configuration = logContextConfiguration.addHandlerConfiguration(moduleName, className, name);
} else {
configuration = logContextConfiguration.addHandlerConfiguration(moduleName, className, name, constructionProperties);
}
}
} catch (ClassNotFoundException e) {
throw createOperationFailure(LoggingMessages.MESSAGES.classNotFound(e, className));
} catch (ModuleLoadException e) {
throw LoggingMessages.MESSAGES.cannotLoadModule(e, moduleName, "handler", name);
}
} else {
// Check for construction parameters
if (constructionProperties == null) {
configuration = logContextConfiguration.addHandlerConfiguration(moduleName, className, name);
} else {
configuration = logContextConfiguration.addHandlerConfiguration(moduleName, className, name, constructionProperties);
}
}
return configuration;
}
}
/**
* A default log handler write attribute step handler.
*/
public static class LogHandlerWriteAttributeHandler extends LoggingOperations.LoggingWriteAttributeHandler {
protected LogHandlerWriteAttributeHandler(final AttributeDefinition... attributes) {
super(attributes);
}
@Override
protected boolean applyUpdate(final OperationContext context, final String attributeName, final String addressName, final ModelNode value, final LogContextConfiguration logContextConfiguration) throws OperationFailedException {
boolean restartRequired = false;
if (logContextConfiguration.getHandlerNames().contains(addressName)) {
final HandlerConfiguration configuration = logContextConfiguration.getHandlerConfiguration(addressName);
if (LEVEL.getName().equals(attributeName)) {
handleProperty(LEVEL, context, value, logContextConfiguration, configuration, false);
} else if (FILTER.getName().equals(attributeName)) {
// Filter should be replaced by the filter-spec in the super class
handleProperty(FILTER_SPEC, context, value, logContextConfiguration, configuration, false);
} else if (FILTER_SPEC.getName().equals(attributeName)) {
handleProperty(FILTER_SPEC, context, value, logContextConfiguration, configuration, false);
} else if (FORMATTER.getName().equals(attributeName)) {
handleProperty(FORMATTER, context, value, logContextConfiguration, configuration, false);
} else if (ENCODING.getName().equals(attributeName)) {
handleProperty(ENCODING, context, value, logContextConfiguration, configuration, false);
} else if (SUBHANDLERS.getName().equals(attributeName)) {
handleProperty(SUBHANDLERS, context, value, logContextConfiguration, configuration, false);
} else if (PROPERTIES.getName().equals(attributeName)) {
for (Property property : value.asPropertyList()) {
configuration.setPropertyValueString(property.getName(), property.getValue().asString());
}
} else {
for (AttributeDefinition attribute : getAttributes()) {
if (attribute.getName().equals(attributeName)) {
handleProperty(attribute, context, value, logContextConfiguration, configuration, false);
restartRequired = Logging.requiresRestart(attribute.getFlags());
break;
}
}
}
}
return restartRequired;
}
}
/**
* A step handler to remove a handler
*/
public static OperationStepHandler CHANGE_LEVEL = new HandlerUpdateOperationStepHandler(LEVEL);
/**
* A step handler to remove a handler
*/
public static OperationStepHandler REMOVE_HANDLER = new LoggingOperations.LoggingRemoveOperationStepHandler() {
@Override
public void performRemove(final OperationContext context, final ModelNode operation, final LogContextConfiguration logContextConfiguration, final String name, final ModelNode model) throws OperationFailedException {
context.removeResource(PathAddress.EMPTY_ADDRESS);
}
@Override
public void performRuntime(final OperationContext context, final ModelNode operation, final LogContextConfiguration logContextConfiguration, final String name, final ModelNode model) throws OperationFailedException {
// Validating wouldn't work until the LogContextConfiguration.commit() happens as handlers could still be
// named as attached removed the check for this reason.
// Remove the handler
logContextConfiguration.removeHandlerConfiguration(name);
// Remove the formatter if there is one
if (logContextConfiguration.getFormatterNames().contains(name)) {
logContextConfiguration.removeFormatterConfiguration(name);
}
// Remove the POJO if it exists
if (logContextConfiguration.getPojoNames().contains(name)) {
logContextConfiguration.removePojoConfiguration(name);
}
}
};
/**
* The handler for adding a subhandler to an {@link org.jboss.logmanager.handlers.AsyncHandler}.
*/
public static final OperationStepHandler ADD_SUBHANDLER = new HandlerUpdateOperationStepHandler() {
@Override
public void updateModel(final ModelNode operation, final ModelNode model) throws OperationFailedException {
HANDLER_NAME.validateAndSet(operation, model);
model.get(SUBHANDLERS.getName()).add(operation.get(HANDLER_NAME.getName()));
}
@Override
public void performRuntime(final OperationContext context, final HandlerConfiguration configuration, final String name, final ModelNode model) throws OperationFailedException {
// Get the handler name
final String handlerName = HANDLER_NAME.resolveModelAttribute(context, model).asString();
if (name.equals(handlerName)) {
throw createOperationFailure(LoggingMessages.MESSAGES.cannotAddHandlerToSelf(configuration.getName()));
}
if (configuration.getHandlerNames().contains(handlerName)) {
throw createOperationFailure(LoggingMessages.MESSAGES.handlerAlreadyDefined(handlerName));
}
configuration.addHandlerName(handlerName);
}
};
/**
* The handler for removing a subhandler to an {@link org.jboss.logmanager.handlers.AsyncHandler}.
*/
public static final OperationStepHandler REMOVE_SUBHANDLER = new HandlerUpdateOperationStepHandler() {
@Override
public void updateModel(final ModelNode operation, final ModelNode model) throws OperationFailedException {
HANDLER_NAME.validateAndSet(operation, model);
final String handlerName = model.get(HANDLER_NAME.getName()).asString();
// Create a new handler list for the model
boolean found = false;
final List<ModelNode> handlers = model.get(SUBHANDLERS.getName()).asList();
final List<ModelNode> newHandlers = new ArrayList<ModelNode>(handlers.size());
for (ModelNode handler : handlers) {
if (handlerName.equals(handler.asString())) {
found = true;
} else {
newHandlers.add(handler);
}
}
if (found) {
model.get(SUBHANDLERS.getName()).set(newHandlers);
}
}
@Override
public void performRuntime(final OperationContext context, final HandlerConfiguration configuration, final String name, final ModelNode model) throws OperationFailedException {
configuration.removeHandlerName(HANDLER_NAME.resolveModelAttribute(context, model).asString());
}
};
/**
* Changes the file for a file handler.
*/
public static OperationStepHandler CHANGE_FILE = new HandlerUpdateOperationStepHandler(FILE);
public static LoggingOperations.LoggingUpdateOperationStepHandler ENABLE_HANDLER = new LoggingOperations.LoggingUpdateOperationStepHandler() {
@Override
public void updateModel(final ModelNode operation, final ModelNode model) throws OperationFailedException {
// Nothing to do
}
@Override
public void performRuntime(final OperationContext context, final ModelNode operation, final LogContextConfiguration configuration, final String name, final ModelNode model) throws OperationFailedException {
enableHandler(configuration, name);
}
};
public static LoggingOperations.LoggingUpdateOperationStepHandler DISABLE_HANDLER = new LoggingOperations.LoggingUpdateOperationStepHandler() {
@Override
public void updateModel(final ModelNode operation, final ModelNode model) throws OperationFailedException {
// Nothing to do
}
@Override
public void performRuntime(final OperationContext context, final ModelNode operation, final LogContextConfiguration configuration, final String name, final ModelNode model) throws OperationFailedException {
disableHandler(configuration, name);
}
};
/**
* Handle updating the configuration.
*
* @param attribute the attribute definition
* @param context the context of the operation
* @param model the model to update
* @param logContextConfiguration the log context configuration
* @param configuration the handler configuration
*
* @throws OperationFailedException if an error occurs
*/
private static void handleProperty(final AttributeDefinition attribute, final OperationContext context, final ModelNode model,
final LogContextConfiguration logContextConfiguration, final HandlerConfiguration configuration)
throws OperationFailedException {
handleProperty(attribute, context, model, logContextConfiguration, configuration, true);
}
/**
* Handle updating the configuration.
*
* @param attribute the attribute definition
* @param context the context of the operation
* @param model the model to update
* @param logContextConfiguration the log context configuration
* @param configuration the handler configuration
* @param resolveValue {@code true} if the value should be resolved via the attribute, otherwise {@code
* false} if the value is already resolved.
*
* @throws OperationFailedException if an error occurs
*/
private static void handleProperty(final AttributeDefinition attribute, final OperationContext context, final ModelNode model,
final LogContextConfiguration logContextConfiguration, final HandlerConfiguration configuration, final boolean resolveValue)
throws OperationFailedException {
if (attribute.getName().equals(ENABLED.getName())) {
final boolean value = ((resolveValue ? ENABLED.resolveModelAttribute(context, model).asBoolean() : model.asBoolean()));
if (value) {
enableHandler(logContextConfiguration, configuration.getName());
} else {
disableHandler(logContextConfiguration, configuration.getName());
}
} else if (attribute.getName().equals(ENCODING.getName())) {
final String resolvedValue = (resolveValue ? ENCODING.resolvePropertyValue(context, model) : model.asString());
configuration.setEncoding(resolvedValue);
} else if (attribute.getName().equals(FORMATTER.getName())) {
final String formatterName = configuration.getName();
final FormatterConfiguration fmtConfig;
if (logContextConfiguration.getFormatterNames().contains(formatterName)) {
fmtConfig = logContextConfiguration.getFormatterConfiguration(formatterName);
} else {
fmtConfig = logContextConfiguration.addFormatterConfiguration(null, PatternFormatter.class.getName(), formatterName, "pattern");
}
final String resolvedValue = (resolveValue ? FORMATTER.resolvePropertyValue(context, model) : model.asString());
fmtConfig.setPropertyValueString("pattern", resolvedValue);
configuration.setFormatterName(formatterName);
} else if (attribute.getName().equals(FILTER_SPEC.getName())) {
final ModelNode valueNode = (resolveValue ? FILTER_SPEC.resolveModelAttribute(context, model) : model);
final String resolvedValue = (valueNode.isDefined() ? valueNode.asString() : null);
configuration.setFilter(resolvedValue);
} else if (attribute.getName().equals(LEVEL.getName())) {
final String resolvedValue = (resolveValue ? LEVEL.resolvePropertyValue(context, model) : LEVEL.resolver().resolveValue(context, model));
configuration.setLevel(resolvedValue);
} else if (attribute.getName().equals(SUBHANDLERS.getName())) {
final Collection<String> resolvedValue = (resolveValue ? SUBHANDLERS.resolvePropertyValue(context, model) : SUBHANDLERS.resolver().resolveValue(context, model));
if (resolvedValue.contains(configuration.getName())) {
throw createOperationFailure(LoggingMessages.MESSAGES.cannotAddHandlerToSelf(configuration.getName()));
}
configuration.setHandlerNames(resolvedValue);
} else if (attribute.getName().equals(HANDLER_NAME.getName())) {
// no-op just ignore the name attribute
} else if (attribute.getName().equals(PROPERTIES.getName())) {
final PropertyConfigurable propertyConfigurable;
// A POJO configuration will have the same name as the handler
final PojoConfiguration pojoConfiguration = logContextConfiguration.getPojoConfiguration(configuration.getName());
if (pojoConfiguration == null) {
propertyConfigurable = configuration;
} else {
propertyConfigurable = pojoConfiguration;
}
if (model.hasDefined(PROPERTIES.getName())) {
for (Property property : PROPERTIES.resolveModelAttribute(context, model).asPropertyList()) {
propertyConfigurable.setPropertyValueString(property.getName(), property.getValue().asString());
}
}
} else {
if (attribute instanceof ConfigurationProperty<?>) {
((ConfigurationProperty<?>) attribute).setPropertyValue(context, model, configuration);
} else {
LoggingLogger.ROOT_LOGGER.invalidPropertyAttribute(attribute.getName());
}
}
}
/**
* Compare the model value with the current value. If the model value equals the currently configured value {@code
* true} is returned, otherwise {@code false}.
*
* @param attribute the attribute definition
* @param context the context of the operation
* @param model the model to update
* @param logContextConfiguration the log context configuration
* @param configuration the handler configuration
*
* @return {@code true} if the model value equals the current configured value, otherwise {@code false}
*
* @throws OperationFailedException if an error occurs
*/
private static boolean equalValue(final AttributeDefinition attribute, final OperationContext context, final ModelNode model,
final LogContextConfiguration logContextConfiguration, final HandlerConfiguration configuration)
throws OperationFailedException {
final boolean result;
if (attribute.getName().equals(ENABLED.getName())) {
final boolean resolvedValue = ENABLED.resolveModelAttribute(context, model).asBoolean();
final boolean currentValue;
if (configuration.hasProperty(ENABLED.getPropertyName())) {
currentValue = Boolean.parseBoolean(configuration.getPropertyValueString(ENABLED.getPropertyName()));
} else {
currentValue = isDisabledHandler(logContextConfiguration.getLogContext(), configuration.getName());
}
result = resolvedValue == currentValue;
} else if (attribute.getName().equals(ENCODING.getName())) {
final String resolvedValue = ENCODING.resolvePropertyValue(context, model);
final String currentValue = configuration.getEncoding();
result = (resolvedValue == null ? currentValue == null : resolvedValue.equals(currentValue));
} else if (attribute.getName().equals(FORMATTER.getName())) {
final String formatterName = configuration.getName();
final FormatterConfiguration fmtConfig;
if (logContextConfiguration.getFormatterNames().contains(formatterName)) {
fmtConfig = logContextConfiguration.getFormatterConfiguration(formatterName);
final String resolvedValue = FORMATTER.resolvePropertyValue(context, model);
final String currentValue = fmtConfig.getPropertyValueString("pattern");
result = (resolvedValue == null ? currentValue == null : resolvedValue.equals(currentValue));
} else {
result = false;
}
} else if (attribute.getName().equals(FILTER_SPEC.getName())) {
final ModelNode valueNode = FILTER_SPEC.resolveModelAttribute(context, model);
final String resolvedValue = (valueNode.isDefined() ? valueNode.asString() : null);
final String currentValue = configuration.getFilter();
result = (resolvedValue == null ? currentValue == null : resolvedValue.equals(currentValue));
} else if (attribute.getName().equals(LEVEL.getName())) {
final String resolvedValue = LEVEL.resolvePropertyValue(context, model);
final String currentValue = configuration.getLevel();
result = (resolvedValue == null ? currentValue == null : resolvedValue.equals(configuration.getLevel()));
} else if (attribute.getName().equals(SUBHANDLERS.getName())) {
final Collection<String> resolvedValue = SUBHANDLERS.resolvePropertyValue(context, model);
final Collection<String> currentValue = configuration.getHandlerNames();
result = (resolvedValue == null ? currentValue == null : resolvedValue.containsAll(currentValue));
} else if (attribute.getName().equals(PROPERTIES.getName())) {
result = true;
if (model.hasDefined(PROPERTIES.getName())) {
for (Property property : PROPERTIES.resolveModelAttribute(context, model).asPropertyList()) {
final String resolvedValue = property.getValue().asString();
final String currentValue = configuration.getPropertyValueString(property.getName());
if (!(resolvedValue == null ? currentValue == null : resolvedValue.equals(currentValue))) {
return false;
}
}
}
} else {
if (attribute instanceof PropertyAttributeDefinition) {
final PropertyAttributeDefinition propAttribute = ((PropertyAttributeDefinition) attribute);
final String resolvedValue = propAttribute.resolvePropertyValue(context, model);
final String currentValue = configuration.getPropertyValueString(propAttribute.getPropertyName());
result = (resolvedValue == null ? currentValue == null : resolvedValue.equals(currentValue));
} else {
result = false;
}
}
return result;
}
/**
* Checks to see if a handler is disabled
*
* @param handlerName the name of the handler to enable.
*/
static boolean isDisabledHandler(final LogContext logContext, final String handlerName) {
final Map<String, String> disableHandlers = logContext.getAttachment(CommonAttributes.ROOT_LOGGER_NAME, DISABLED_HANDLERS_KEY);
return disableHandlers != null && disableHandlers.containsKey(handlerName);
}
/**
* Enables the handler if it was previously disabled.
* <p/>
* If it was not previously disable, nothing happens.
*
* @param configuration the log context configuration.
* @param handlerName the name of the handler to enable.
*/
static void enableHandler(final LogContextConfiguration configuration, final String handlerName) {
final HandlerConfiguration handlerConfiguration = configuration.getHandlerConfiguration(handlerName);
try {
handlerConfiguration.setPropertyValueString("enabled", "true");
return;
} catch (IllegalArgumentException e) {
// do nothing
}
final Map<String, String> disableHandlers = configuration.getLogContext().getAttachment(CommonAttributes.ROOT_LOGGER_NAME, DISABLED_HANDLERS_KEY);
if (disableHandlers != null && disableHandlers.containsKey(handlerName)) {
synchronized (HANDLER_LOCK) {
final String filter = disableHandlers.get(handlerName);
handlerConfiguration.setFilter(filter);
disableHandlers.remove(handlerName);
}
}
}
/**
* Disables the handler if the handler exists and is not already disabled.
* <p/>
* If the handler does not exist or is already disabled nothing happens.
*
* @param configuration the log context configuration.
* @param handlerName the handler name to disable.
*/
static void disableHandler(final LogContextConfiguration configuration, final String handlerName) {
final HandlerConfiguration handlerConfiguration = configuration.getHandlerConfiguration(handlerName);
try {
handlerConfiguration.setPropertyValueString("enabled", "false");
return;
} catch (IllegalArgumentException e) {
// do nothing
}
final Logger root = configuration.getLogContext().getLogger(CommonAttributes.ROOT_LOGGER_NAME);
Map<String, String> disableHandlers = root.getAttachment(DISABLED_HANDLERS_KEY);
synchronized (HANDLER_LOCK) {
if (disableHandlers == null) {
disableHandlers = new HashMap<String, String>();
final Map<String, String> current = root.attachIfAbsent(DISABLED_HANDLERS_KEY, disableHandlers);
if (current != null) {
disableHandlers = current;
}
}
if (!disableHandlers.containsKey(handlerName)) {
disableHandlers.put(handlerName, handlerConfiguration.getFilter());
handlerConfiguration.setFilter(CommonAttributes.DENY.getName());
}
}
}
}