/**
* JBoss, Home of Professional Open Source
* Copyright 2012, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This 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 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.arquillian.graphene.page.extension;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import org.jboss.arquillian.graphene.javascript.Dependency;
import org.jboss.arquillian.graphene.javascript.InstallableJavaScript;
import org.jboss.arquillian.graphene.javascript.JSMethod;
import org.jboss.arquillian.graphene.javascript.JSTarget;
import org.jboss.arquillian.graphene.spi.javascript.JavaScript;
import org.jboss.arquillian.graphene.spi.page.PageExtension;
/**
* @author <a href="mailto:jpapouse@redhat.com">Jan Papousek</a>
*/
public class JavaScriptPageExtension implements PageExtension {
private final JavaScript extensionScript;
private final JavaScript installationDetectionScript;
private final Collection<String> required;
private final JSTarget target;
public JavaScriptPageExtension(Class<?> clazz) {
this.target = new JSTarget(clazz);
if (target.getName() == null || target.getName().isEmpty()) {
throw new IllegalArgumentException("The JavaScript page extension can be created only for class where @JavaScript annotation defines non empty value(). The given class " + clazz + " is not annotation this way.");
}
Dependency dependency = clazz.getAnnotation(org.jboss.arquillian.graphene.javascript.Dependency.class);
if (dependency != null) {
if (dependency.sources().length == 0 && dependency.interfaces().length != 0) {
throw new IllegalArgumentException("The JavaScript page extension can't have any interface dependencies when it has no source dependencies. Can't create page extension for " + clazz + ".");
}
// load javascript sources
JavaScript dependencyScript = null;
for (String source: dependency.sources()) {
if (dependencyScript == null) {
dependencyScript = JavaScript.fromResource(source);
} else {
dependencyScript = dependencyScript.join(JavaScript.fromResource(source));
}
}
// load install() method
if (target.isInstallable()) {
JSMethod installMethod = target.getJSMethod(InstallableJavaScript.INSTALL_METHOD);
String functionCall = target.getName() + "." + installMethod.getName() + "();";
dependencyScript = dependencyScript.join(JavaScript.fromString(functionCall));
}
this.extensionScript = dependencyScript;
// installation detection
JavaScript jsInstallationDetection = null;
StringBuilder builder = new StringBuilder();
for (String object: target.getName().split("\\.")) {
if (jsInstallationDetection == null) {
jsInstallationDetection = JavaScript.fromString("return (typeof " + object + " != 'undefined')");
} else {
jsInstallationDetection = jsInstallationDetection.append(" && (typeof " + builder.toString() + object + " != 'undefined')");
}
builder.append(object).append(".");
}
installationDetectionScript = jsInstallationDetection;
// load dependencies
Collection<String> dependencies = new ArrayList<String>();
for (Class<?> dependencyInterface: dependency.interfaces()) {
org.jboss.arquillian.graphene.javascript.JavaScript jsDependencyAnnoation = dependencyInterface.getAnnotation(org.jboss.arquillian.graphene.javascript.JavaScript.class);
if (jsDependencyAnnoation == null) {
throw new IllegalArgumentException("There is a dependency " + dependencyInterface + " of " + clazz + " which isn't annotated by @JavaScript annoation. The JavaScript page extension can't be created.");
}
if (jsDependencyAnnoation.value() == null || jsDependencyAnnoation.value().isEmpty()) {
throw new IllegalArgumentException("There is a dependency " + dependencyInterface + " of " + clazz + " where @JavaScript annoation doesn't define non empty value(). The JavaScript page extension can't be created.");
}
dependencies.add(jsDependencyAnnoation.value());
}
this.required = Collections.unmodifiableCollection(dependencies);
} else {
this.installationDetectionScript = JavaScript.fromString("return true;");
this.extensionScript = JavaScript.fromString("return true;");
this.required = Collections.unmodifiableCollection(Collections.EMPTY_LIST);
}
}
@Override
public String getName() {
return target.getName();
}
@Override
public JavaScript getExtensionScript() {
return extensionScript;
}
@Override
public JavaScript getInstallationDetectionScript() {
return installationDetectionScript;
}
@Override
public Collection<String> getRequired() {
return required;
}
}