org.apache.isis.viewer.wicket.ui.components.about.AboutPanelFactory.java Source code

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Here is the source code for org.apache.isis.viewer.wicket.ui.components.about.AboutPanelFactory.java

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/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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 org.apache.isis.viewer.wicket.ui.components.about;

import java.nio.charset.Charset;

import com.google.common.io.Resources;

import org.apache.wicket.Component;
import org.apache.wicket.model.IModel;

import org.apache.isis.viewer.wicket.model.models.AboutModel;
import org.apache.isis.viewer.wicket.ui.ComponentFactory;
import org.apache.isis.viewer.wicket.ui.ComponentFactoryAbstract;
import org.apache.isis.viewer.wicket.ui.ComponentType;

/**
 * {@link ComponentFactory} for {@link AboutPanel}.
 */
public class AboutPanelFactory extends ComponentFactoryAbstract {

    private static final long serialVersionUID = 1L;
    private static final String META_INF_POM_PROPERTIES = "/META-INF/maven/org.apache.isis.viewer/wicket-viewer/pom.properties";

    public AboutPanelFactory() {
        super(ComponentType.ABOUT);
    }

    @Override
    public ApplicationAdvice appliesTo(final IModel<?> model) {
        return ApplicationAdvice.APPLIES;
    }

    @Override
    public Component createComponent(final String id, final IModel<?> model) {
        return new AboutPanel(id, new AboutModel(versionFromManifest()));
    }

    private static String versionFromManifest() {
        try {
            return Resources.toString(Resources.getResource(META_INF_POM_PROPERTIES), Charset.defaultCharset());
        } catch (final Exception ex) {
            return "UNKNOWN";
        }
    }

}