/*
* 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 implements ThemeProviderFactory {
protected static final String KEYCLOAK_THEMES_JSON = "META-INF/keycloak-themes.json";
protected static Map<Theme.Type, Map<String, ClassLoaderTheme>> themes = new HashMap<>();
public static class ThemeRepresentation {
private String name;
private String[] types;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String[] getTypes() {
return types;
}
public void setTypes(String[] types) {
this.types = types;
}
}
public static class ThemesRepresentation {
private ThemeRepresentation[] themes;
public ThemeRepresentation[] getThemes() {
return themes;
}
public void setThemes(ThemeRepresentation[] themes) {
this.themes = themes;
}
}
@Override
public ThemeProvider create(KeycloakSession session) {
return new JarThemeProvider(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);
}
}
@Override
public void postInit(KeycloakSessionFactory factory) {
}
@Override
public void close() {
}
@Override
public String getId() {
return "jar";
}
protected void loadThemes(ClassLoader classLoader, InputStream themesInputStream) {
try {
ThemesRepresentation themesRep = JsonSerialization.readValue(themesInputStream, ThemesRepresentation.class);
for (ThemeRepresentation themeRep : themesRep.getThemes()) {
for (String t : themeRep.getTypes()) {
Theme.Type type = Theme.Type.valueOf(t.toUpperCase());
if (!themes.containsKey(type)) {
themes.put(type, new HashMap<String, ClassLoaderTheme>());
}
themes.get(type).put(themeRep.getName(), new ClassLoaderTheme(themeRep.getName(), type, classLoader));
}
}
} catch (Exception e) {
throw new RuntimeException("Failed to load themes", e);
}
}
}