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/*
* Copyright 2000-2018 Vaadin Ltd.
*
* 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.vaadin.data;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.fail;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.InvocationTargetException;
import java.net.URL;
import java.net.URLClassLoader;
import javax.validation.Validation;
import org.apache.commons.io.IOUtils;
import org.junit.Test;
import com.vaadin.data.util.BeanUtil;
import com.vaadin.tests.data.bean.BeanToValidate;
import com.vaadin.ui.TextField;
/**
* @author Vaadin Ltd
*
*/
public class Jsr303Test {
private static class TestClassLoader extends URLClassLoader {
public TestClassLoader() {
super(new URL[0], Thread.currentThread().getContextClassLoader());
}
@Override
public Class<?> loadClass(String name) throws ClassNotFoundException {
String vaadinPackagePrefix = getClass().getPackage().getName();
vaadinPackagePrefix = vaadinPackagePrefix.substring(0,
vaadinPackagePrefix.lastIndexOf('.'));
if (name.equals(UnitTest.class.getName())) {
super.loadClass(name);
} else if (name
.startsWith(Validation.class.getPackage().getName())) {
throw new ClassNotFoundException();
} else if (name.startsWith(vaadinPackagePrefix)) {
String path = name.replace('.', '/').concat(".class");
URL resource = Thread.currentThread().getContextClassLoader()
.getResource(path);
InputStream stream;
try {
stream = resource.openStream();
byte[] bytes = IOUtils.toByteArray(stream);
return defineClass(name, bytes, 0, bytes.length);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
return super.loadClass(name);
}
}
public interface UnitTest {
void execute();
}
public static class Jsr303UnitTest implements UnitTest {
private final TextField nameField = new TextField();
@Override
public void execute() {
assertFalse(BeanUtil.checkBeanValidationAvailable());
Binder<BeanToValidate> binder = new Binder<>(BeanToValidate.class);
BeanToValidate item = new BeanToValidate();
String name = "Johannes";
item.setFirstname(name);
item.setAge(32);
binder.bind(nameField, "firstname");
binder.setBean(item);
assertEquals(name, nameField.getValue());
// BeanToValidate : @Size(min = 3, max = 16) for the firstName
nameField.setValue("a");
assertEquals(nameField.getValue(), item.getFirstname());
try {
BeanValidationBinder<BeanToValidate> beanValidationBinder = new BeanValidationBinder<>(
BeanToValidate.class);
fail();
} catch (IllegalStateException ignore) {
// an exception has to be thrown
}
}
}
@Test
public void beanBinderWithoutJsr303() throws ClassNotFoundException,
NoSuchMethodException, SecurityException, InstantiationException,
IllegalAccessException, IllegalArgumentException,
InvocationTargetException, IOException, InterruptedException {
try (URLClassLoader loader = new TestClassLoader()) {
Class<?> clazz = loader.loadClass(Jsr303UnitTest.class.getName());
UnitTest test = (UnitTest) clazz.newInstance();
test.execute();
}
}
}
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