selenium.ThreadSafeDriver.java Source code

Introduction

Here is the source code for selenium.ThreadSafeDriver.java

Source

/*
 * SonarQube, open source software quality management tool.
 * Copyright (C) 2008-2014 SonarSource
 * mailto:contact AT sonarsource DOT com
 *
 * SonarQube 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 3 of the License, or (at your option) any later version.
 *
 * SonarQube 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 program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package selenium;

import org.openqa.selenium.remote.RemoteWebDriver;
import org.openqa.selenium.remote.UnreachableBrowserException;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.Set;

class ThreadSafeDriver {
    private ThreadSafeDriver() {
        // Static class
    }

    static SeleniumDriver makeThreadSafe(final RemoteWebDriver driver) {
        Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    driver.quit();
                } catch (UnreachableBrowserException e) {
                    // Ignore. The browser was killed properly
                }
            }
        }));

        return (SeleniumDriver) Proxy.newProxyInstance(Thread.currentThread().getContextClassLoader(),
                findInterfaces(driver), new InvocationHandler() {
                    @Override
                    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
                        if (method.getName().equals("quit")) {
                            return null; // We don't want anybody to quit() our (per thread) driver
                        }

                        try {
                            return method.invoke(driver, args);
                        } catch (InvocationTargetException e) {
                            throw e.getCause();
                        }
                    }
                });
    }

    private static Class[] findInterfaces(Object driver) {
        Set<Class<?>> interfaces = new LinkedHashSet<>();

        interfaces.add(SeleniumDriver.class);

        for (Class<?> parent = driver.getClass(); parent != null;) {
            Collections.addAll(interfaces, parent.getInterfaces());
            parent = parent.getSuperclass();
        }

        return interfaces.toArray(new Class[interfaces.size()]);
    }
}