ro.fortsoft.wicket.plugin.PluginComponentInjector.java Source code

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Here is the source code for ro.fortsoft.wicket.plugin.PluginComponentInjector.java

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/*
 * Copyright 2012 Decebal Suiu
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this work except in compliance with
 * the License. You may obtain a copy of the License in the LICENSE file, or 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 ro.fortsoft.wicket.plugin;

import org.apache.wicket.Application;
import org.apache.wicket.Component;
import org.apache.wicket.application.IComponentInstantiationListener;
import org.apache.wicket.injection.IFieldValueFactory;
import org.apache.wicket.injection.Injector;

import ro.fortsoft.pf4j.PluginManager;

/**
 * The injector scans the component class for fields annotated by @javax.inject.Inject, 
 * looks up extensions of the required type for the given field from the plugin manager, and injects 
 * the extensions.
 * 
 * @author Decebal Suiu
 */
public class PluginComponentInjector extends Injector implements IComponentInstantiationListener {

    private IFieldValueFactory factory;

    public PluginComponentInjector(Application application) {
        PluginManager pluginManager = application.getMetaData(PluginManagerInitializer.PLUGIN_MANAGER_KEY);
        factory = new PluginFieldValueFactory(pluginManager);
    }

    @Override
    public void onInstantiation(Component component) {
        inject(component);
    }

    @Override
    public void inject(Object object) {
        inject(object, factory);
    }

}