/*
* Copyright 2013 eXo Platform SAS
*
* 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 juzu.impl.bridge;
import juzu.impl.common.Logger;
import juzu.impl.common.Name;
import juzu.impl.inject.spi.InjectorProvider;
import juzu.impl.common.Tools;
import java.nio.charset.Charset;
import java.util.Collections;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.TreeMap;
/** @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> */
public class BridgeConfig {
/** . */
public static final String INJECT = "juzu.inject";
/** . */
public static final String APP_NAME = "juzu.app_name";
/** The default request encoding charset. */
public static final String REQUEST_ENCODING = "juzu.request_encoding";
/** . */
public static final Set<String> NAMES = Collections.unmodifiableSet(Tools.set(INJECT, APP_NAME, REQUEST_ENCODING));
/** . */
public final Name name;
/** . */
public final InjectorProvider injectorProvider;
/** . */
public final Charset requestEncoding;
public BridgeConfig(Logger log, Map<String, String> config) throws Exception {
this.name = getApplicationName(config);
this.injectorProvider = getInjectImplementation(log, config);
this.requestEncoding = getRequestEncoding(config);
}
private Name getApplicationName(Map<String, String> config) {
String applicationName = config.get(APP_NAME);
return applicationName != null ? Name.parse(applicationName) : null;
}
private InjectorProvider getInjectImplementation(Logger log, Map<String, String> config) throws Exception {
String inject = config.get(INJECT);
if (inject == null) {
log.debug("No inject implementation specified will detect one available");
TreeMap<Integer, InjectorProvider> providers = new TreeMap<Integer, InjectorProvider>();
for (InjectorProvider provider : InjectorProvider.values()) {
if (provider.isAvailable()) {
log.debug("Inject implementation " + provider.getValue() + " available");
providers.put(provider.getPriority(), provider);
} else {
log.debug("Inject implementation " + provider.getValue() + " not available");
}
}
Iterator<InjectorProvider> i = providers.values().iterator();
if (i.hasNext()) {
InjectorProvider implementation = i.next();
log.debug("Selected " + implementation.get() + " inject implementation");
return implementation;
} else {
log.debug("No inject implementation available");
return null;
}
} else {
inject = inject.trim().toLowerCase();
InjectorProvider implementation = InjectorProvider.find(inject);
if (implementation == null) {
log.debug("Inject implementation " + inject + " not available");
return null;
} else {
return implementation;
}
}
}
private Charset getRequestEncoding(Map<String, String> config) {
String requestEncodingParam = config.get(REQUEST_ENCODING);
if (requestEncodingParam != null) {
requestEncodingParam = Tools.interpolate(requestEncodingParam, System.getProperties());
return Charset.forName(requestEncodingParam);
} else {
return Tools.ISO_8859_1;
}
}
}