JarThemeProviderFactory.java

/*
 * Copyright 2016 Red Hat, Inc. and/or its affiliates
 * and other contributors as indicated by the @author tags.
 *
 * 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 org.keycloak.theme;

import org.keycloak.Config;
import org.keycloak.models.KeycloakSession;
import org.keycloak.models.KeycloakSessionFactory;
import org.keycloak.util.JsonSerialization;

import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;

/**
 * @author <a href="mailto:sthorger@redhat.com">Stian Thorgersen</a>
 */
public class JarThemeProviderFactory extends ClasspathThemeProviderFactory {

    public JarThemeProviderFactory() {
        super("jar");
    }

    @Override
    public ThemeProvider create(KeycloakSession session) {
        return new ClasspathThemeProvider(themes);
    }

    @Override
    public void init(Config.Scope config) {
        try {
            ClassLoader classLoader = getClass().getClassLoader();
            Enumeration<URL> resources = classLoader.getResources(KEYCLOAK_THEMES_JSON);
            while (resources.hasMoreElements()) {
                loadThemes(classLoader, resources.nextElement().openStream());
            }
        } catch (IOException e) {
            throw new RuntimeException("Failed to load themes", e);
        }
    }

}