/*******************************************************************************
* Copyright 2008 Google Inc.
*
* 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 com.google.gwt.demos.logging.client;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.libideas.logging.client.DivLogHandler;
import com.google.gwt.libideas.logging.client.FireBugLogHandler;
import com.google.gwt.libideas.logging.client.GWTLogHandler;
import com.google.gwt.libideas.logging.client.RemoteLogHandler;
import com.google.gwt.libideas.logging.client.TreeLogHandler;
import com.google.gwt.libideas.logging.shared.LogHandler;
import com.google.gwt.libideas.logging.shared.Level;
import com.google.gwt.libideas.logging.shared.Log;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.SerializableException;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.ChangeListener;
import com.google.gwt.user.client.ui.CheckBox;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.ListBox;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
import java.util.Iterator;
/**
* Entry point classes define <code>onModuleLoad()</code>.
*/
public class LoggingDemo implements EntryPoint {
class HandlerConfig extends FlexTable {
class MyHandlerClickListener implements ClickListener {
LogHandler handler;
boolean added;
public MyHandlerClickListener(LogHandler handler) {
this.handler = handler;
}
public void onClick(Widget sender) {
if (added) {
Log.removeLogHandler(handler);
added = false;
} else {
Log.addLogHandler(handler);
added = true;
}
}
}
HandlerConfig(final LogHandler handler) {
this.setStyleName("handler-control");
final String name = GWT.getTypeName(handler);
int index = name.lastIndexOf(".") + 1;
CheckBox enabled = new CheckBox("enabled");
enabled.addClickListener(new MyHandlerClickListener(handler));
this.setText(0, 0, name.substring(index));
this.getFlexCellFormatter().setColSpan(0, 0, 2);
this.setWidget(1, 0, enabled);
this.setText(2, 0, "Current level");
final ListBox box = new ListBox();
Iterator levels = Log.levelIterator();
while (levels.hasNext()) {
Level l = (Level) levels.next();
box.addItem(l.getName());
}
box.addChangeListener(new ChangeListener() {
public void onChange(Widget sender) {
int index = box.getSelectedIndex();
String level = box.getItemText(index);
Log.info("Setting " + name + " to level " + level, Log.CATEGORY);
handler.setLevel(Log.parseLevel(level));
}
});
this.setWidget(2, 1, box);
}
}
public static String myCategory = "com.google.gwt.demos.logging.client.LoggingDemo";
boolean b = true;
int messageNumber = 1;
int exceptionCount = 0;
/**
* Check out this method compiled.
*/
public void checkingForLevelRemoval() {
String category = "simple";
Log.finest("finest", category);
Log.finer("finer", category);
Log.fine("fine", category);
Log.config("config", category);
Log.info("info", category);
Log.warning("warning", category);
// Stop inlining
if (b) {
b = false;
checkingForLevelRemoval();
}
}
/**
* This is the entry point method.
*/
public void onModuleLoad() {
checkingForLevelRemoval();
if (Log.isLoggingSupported()) {
Window.alert("Logging loaded, current logging level is "
+ Log.getDefaultLevel() + " Setting it to ALL");
Log.clearLogHandlers();
Log.setDefaultLevel(Level.ALL);
final FlexTable control = new FlexTable();
RootPanel.get().add(control);
addLevelControls(control);
addHandlers(control);
}
}
private void addHandlers(final FlexTable control) {
int pos = 0;
control.setWidget(pos, 0, new HandlerConfig(new TreeLogHandler(true)));
control.setWidget(++pos, 0, new HandlerConfig(new FireBugLogHandler()));
control.setWidget(++pos, 0, new HandlerConfig(new DivLogHandler()));
control.setWidget(++pos, 0, new HandlerConfig(new GWTLogHandler()));
RemoteLogHandler handler = new RemoteLogHandler();
control.setWidget(++pos, 0, new HandlerConfig(handler));
}
private void addLevelControls(final FlexTable control) {
final TextBox box = new TextBox();
box.setText("message 0");
VerticalPanel loggingMessage = new VerticalPanel();
loggingMessage.add(new Label("Logging message"));
loggingMessage.add(box);
control.setWidget(0, 1, loggingMessage);
Iterator levels = Log.levelIterator();
int pos = 0;
while (levels.hasNext()) {
final Level level = (Level) levels.next();
VerticalPanel p = new VerticalPanel();
p.add(new Label((level.getName().toLowerCase())));
control.setWidget(pos, 2, p);
p.setStyleName("level-control");
if (!level.isControl()) {
Button b1 = new Button("log ", new ClickListener() {
public void onClick(Widget sender) {
Log.log(box.getText(), level, "user", null);
box.setText("message " + messageNumber++);
}
});
p.add(b1);
Button b2 = new Button("throw exception ", new ClickListener() {
public void onClick(Widget sender) {
Log.log("User Exception " + exceptionCount++, level, "user",
new SerializableException(box.getText()));
box.setText("message " + messageNumber++);
}
});
p.add(b2);
}
Button b2 = new Button("set level", new ClickListener() {
public void onClick(Widget sender) {
Log.setDefaultLevel(level);
}
});
p.add(b2);
++pos;
}
}
}