/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.myfaces.tobago.example.addressbook.web;
import org.apache.commons.io.IOUtils;
import org.apache.log4j.Appender;
import org.apache.log4j.Level;
import org.apache.log4j.LogManager;
import org.apache.myfaces.tobago.component.UIIn;
import org.apache.myfaces.tobago.example.addressbook.Log4jUtils;
import org.apache.myfaces.tobago.model.SelectItem;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
import javax.faces.component.UIParameter;
import javax.faces.context.FacesContext;
import javax.servlet.ServletResponse;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Enumeration;
import java.util.List;
import java.util.Set;
@Component("logging")
@Scope("session")
public class LoggingController {
private static final Logger LOG = LoggerFactory.getLogger(LoggingController.class);
private List<AppenderModel> appenders = new ArrayList<AppenderModel>();
private List<CategoryModel> categories = new ArrayList<CategoryModel>();
private List<SelectItem> levels = new ArrayList<SelectItem>();
private String category;
private UIIn categoryControl;
private String level;
private UIParameter currentCategory;
private UIParameter currentAppender;
private int catergoriesFirst;
private int catergoriesRows;
public LoggingController() {
LOG.debug("initializing...");
catergoriesRows = 8;
initAppenders();
initCategories();
levels.add(new SelectItem(Level.FATAL.toString()));
levels.add(new SelectItem(Level.ERROR.toString()));
levels.add(new SelectItem(Level.WARN.toString()));
levels.add(new SelectItem(Level.INFO.toString()));
levels.add(new SelectItem(Level.DEBUG.toString()));
levels.add(new SelectItem(Level.TRACE.toString()));
}
private void initCategories() {
categories.clear();
Enumeration enumeration = LogManager.getCurrentLoggers();
while (enumeration.hasMoreElements()) {
org.apache.log4j.Logger logger = (org.apache.log4j.Logger) enumeration.nextElement();
categories.add(new CategoryModel(logger));
}
categories.add(new CategoryModel(LogManager.getRootLogger()));
Collections.sort(categories, new Comparator<CategoryModel>() {
public int compare(CategoryModel c1, CategoryModel c2) {
org.apache.log4j.Logger l1 = c1.getLogger();
org.apache.log4j.Logger l2 = c2.getLogger();
return l1.getName().compareTo(l2.getName());
}
});
}
private void initAppenders() {
appenders.clear();
Set<Appender> allAppenders = Log4jUtils.getAllAppenders();
for (Appender appender : allAppenders) {
appenders.add(new AppenderModel(appender));
}
}
public String downloadLogFile() throws IOException {
AppenderModel appender = (AppenderModel) currentAppender.getValue();
String fileName = appender.getFile();
FileInputStream stream = new FileInputStream(fileName);
FacesContext facesContext = FacesContext.getCurrentInstance();
ServletResponse response = (ServletResponse) facesContext.getExternalContext().getResponse();
response.setContentType("text/plain");
IOUtils.copy(stream, response.getOutputStream());
facesContext.responseComplete();
return null;
}
public String updateCategories() {
boolean update = false;
for (CategoryModel category : categories) {
if (category.isLevelUpdated()) {
org.apache.log4j.Logger logger = getLogger(category.getName());
logger.setLevel(Level.toLevel(category.getLevel()));
update = true;
}
}
if (update) {
initCategories();
}
return null;
}
public String addCategory() {
LOG.debug("debug");
LOG.trace("trace");
org.apache.log4j.Logger logger = getLogger(category);
logger.setLevel(Level.toLevel(level));
initCategories();
return null;
}
public String selectCategory() {
category = ((CategoryModel) currentCategory.getValue()).getName();
categoryControl.setSubmittedValue(category);
return null;
}
private org.apache.log4j.Logger getLogger(String category) {
return ("root".equals(category))
? LogManager.getRootLogger()
: LogManager.getLogger(category);
}
public List<AppenderModel> getAppenders() {
return appenders;
}
public List<CategoryModel> getCategories() {
return categories;
}
public List<SelectItem> getLevels() {
return levels;
}
public String getCategory() {
return category;
}
public void setCategory(String category) {
this.category = category;
}
public UIIn getCategoryControl() {
return categoryControl;
}
public void setCategoryControl(UIIn categoryControl) {
this.categoryControl = categoryControl;
}
public String getLevel() {
return level;
}
public void setLevel(String level) {
this.level = level;
}
public UIParameter getCurrentCategory() {
return currentCategory;
}
public void setCurrentCategory(UIParameter currentCategory) {
this.currentCategory = currentCategory;
}
public int getCatergoriesFirst() {
return catergoriesFirst;
}
public void setCatergoriesFirst(int catergoriesFirst) {
this.catergoriesFirst = catergoriesFirst;
}
public int getCatergoriesRows() {
return catergoriesRows;
}
public void setCatergoriesRows(int catergoriesRows) {
this.catergoriesRows = catergoriesRows;
}
public UIParameter getCurrentAppender() {
return currentAppender;
}
public void setCurrentAppender(UIParameter currentAppender) {
this.currentAppender = currentAppender;
}
}