JsonConfigProviderFactory.java
/*
* Copyright 2019 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.services.util;
import org.keycloak.config.ConfigProviderFactory;
import com.fasterxml.jackson.databind.JsonNode;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.util.Optional;
import java.util.Properties;
import org.jboss.logging.Logger;
import org.keycloak.Config;
import org.keycloak.common.util.SystemEnvProperties;
import org.keycloak.services.ServicesLogger;
import org.keycloak.util.JsonSerialization;
public abstract class JsonConfigProviderFactory implements ConfigProviderFactory {
private static final Logger LOG = Logger.getLogger(JsonConfigProviderFactory.class);
@Override
public Optional<Config.ConfigProvider> create() {
JsonNode node = null;
try {
String configDir = System.getProperty("jboss.server.config.dir");
if (configDir != null) {
File f = new File(configDir + File.separator + "keycloak-server.json");
if (f.isFile()) {
ServicesLogger.LOGGER.loadingFrom(f.getAbsolutePath());
node = JsonSerialization.mapper.readTree(f);
}
}
if (node == null) {
URL resource = Thread.currentThread().getContextClassLoader().getResource("META-INF/keycloak-server.json");
if (resource != null) {
ServicesLogger.LOGGER.loadingFrom(resource);
node = JsonSerialization.mapper.readTree(resource);
}
}
} catch (IOException e) {
LOG.warn("Failed to load JSON config", e);
}
return createJsonProvider(node);
}
protected Optional<Config.ConfigProvider> createJsonProvider(JsonNode node) {
return Optional.ofNullable(node).map(n -> new JsonConfigProvider(n, getProperties()));
}
protected Properties getProperties() {
return new SystemEnvProperties();
}
}