net.contextfw.web.application.internal.classloading.ReloadingClassLoaderTest.java Source code

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Here is the source code for net.contextfw.web.application.internal.classloading.ReloadingClassLoaderTest.java

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/**
 * Copyright 2010 Marko Lavikainen
 *
 * 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 net.contextfw.web.application.internal.classloading;

import static net.contextfw.web.application.configuration.Configuration.RELOADABLE_CLASSES;
import static net.contextfw.web.application.configuration.Configuration.VIEW_COMPONENT_ROOT_PACKAGE;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertTrue;

import java.util.Set;

import net.contextfw.web.application.configuration.Configuration;
import net.contextfw.web.application.development.DevelopmentModeListener;
import net.contextfw.web.application.internal.development.ClassLoaderProvider;
import net.contextfw.web.application.internal.development.DevelopmentToolsImpl;
import net.contextfw.web.application.internal.development.InternalDevelopmentTools;
import net.contextfw.web.application.internal.development.ReloadingClassLoader;
import net.contextfw.web.application.internal.development.ReloadingClassLoaderConf;

import org.apache.commons.lang.mutable.MutableBoolean;
import org.junit.Before;
import org.junit.Test;

public class ReloadingClassLoaderTest {

    private Configuration conf;

    @Before
    public void setup() {
        conf = Configuration.getDefaults().add(VIEW_COMPONENT_ROOT_PACKAGE, "net.contextfw.views");
    }

    @Test
    public void Reloadable_Packages() {

        conf = conf.add(RELOADABLE_CLASSES.includedPackage("net.contextfw", false))
                .add(RELOADABLE_CLASSES.includedPackage("net.contextfw.web2", false))
                .add(RELOADABLE_CLASSES.includedPackage("net.contextfw", false))
                .add(RELOADABLE_CLASSES.includedPackage("net.contextfw.web"));

        ReloadingClassLoaderConf rConf = new ReloadingClassLoaderConf(conf);

        assertTrue(rConf.isInReloadablePackage("net.contextfw.Link"));
        assertTrue(rConf.isInReloadablePackage("net.contextfw.web.SomeClass"));
        assertTrue(rConf.isInReloadablePackage("net.contextfw.web2.SomeClass"));
        assertTrue(rConf.isInReloadablePackage("net.contextfw.web.sub.SomeClass"));
        assertTrue(rConf.isInReloadablePackage("net.contextfw.views.SomeClass"));
        assertTrue(rConf.isInReloadablePackage("net.contextfw.views.sub.SomeClass"));

        assertFalse(rConf.isInReloadablePackage("net.contextfw.a.Link"));
        assertFalse(rConf.isInReloadablePackage("net.contextfw.web2.sub.SomeClass"));
        assertFalse(rConf.isInReloadablePackage("net.contextfw.web2.sub.sab.SomeClass"));

        Set<String> names = rConf.getReloadablePackageNames();
        assertTrue(names.contains("net.contextfw.web"));
        assertTrue(names.contains("net.contextfw.views"));
    }

    @Test
    public void Excluded_Classes() {
        conf = conf.add(RELOADABLE_CLASSES.excludedClass(String.class))
                .add(RELOADABLE_CLASSES.excludedClass(ReloadingClassLoader.class));

        ReloadingClassLoaderConf rConf = new ReloadingClassLoaderConf(conf);
        Set<Class<?>> classes = rConf.getExcludedClasses();
        assertEquals(2, classes.size());
        assertTrue(classes.contains(String.class));
        assertTrue(classes.contains(ReloadingClassLoader.class));
    }

    @Test
    public void Load_Classes() throws ClassNotFoundException {

        conf = conf.add(
                RELOADABLE_CLASSES.includedPackage("net.contextfw.web.application.internal.classloading", false))
                .add(RELOADABLE_CLASSES.excludedClass(NonReloadable.class));

        InternalDevelopmentTools tools = new DevelopmentToolsImpl(conf);

        final MutableBoolean classesReloaded = new MutableBoolean(false);
        final MutableBoolean resourcesReloaded = new MutableBoolean(false);

        tools.addListener(new DevelopmentModeListener() {
            @Override
            public void resourcesReloaded() {
                resourcesReloaded.setValue(true);
            }

            @Override
            public void classesReloaded(ClassLoader classLoader) {
                classesReloaded.setValue(true);
            }
        });

        ClassLoader classLoader = tools.reloadClasses();
        tools.reloadResources();

        assertTrue(classesReloaded.booleanValue());
        assertTrue(resourcesReloaded.booleanValue());

        Class<?> reloadable = classLoader
                .loadClass("net.contextfw.web.application.internal.classloading.Reloadable");

        Class<?> nonReloadable = classLoader
                .loadClass("net.contextfw.web.application.internal.classloading.NonReloadable");

        assertEquals(NonReloadable.class, nonReloadable);
        assertNotSame(Reloadable.class, reloadable);

        assertEquals(String.class, classLoader.loadClass("java.lang.String"));
    }

    @Test(expected = ClassNotFoundException.class)
    public void Throw_Class_CastException() throws ClassNotFoundException {
        conf = conf.add(
                RELOADABLE_CLASSES.includedPackage("net.contextfw.web.application.internal.classloading", false))
                .add(RELOADABLE_CLASSES.excludedClass(NonReloadable.class));

        ClassLoaderProvider provider = new ClassLoaderProvider(new ReloadingClassLoaderConf(conf));

        ClassLoader classLoader = provider.reload();

        classLoader.loadClass("net.contextfw.web.application.internal.classloading.Reloadaple");
    }
}