org.apache.camel.support.jndi.JndiBeanRepository Maven / Gradle / Ivy
/*
* 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.camel.support.jndi;
import java.util.Hashtable;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NameClassPair;
import javax.naming.NameNotFoundException;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import org.apache.camel.NoSuchBeanException;
import org.apache.camel.spi.BeanRepository;
/**
* A {@link BeanRepository} implementation which looks up the objects in JNDI
*/
public class JndiBeanRepository implements BeanRepository {
private Context context;
private Map environment;
private final boolean standalone;
public JndiBeanRepository() {
this.standalone = false;
}
public JndiBeanRepository(Map environment) {
this.environment = environment;
this.standalone = false;
}
public JndiBeanRepository(Context context) {
this.context = context;
this.standalone = false;
}
/**
* Whether to use standalone mode, where the JNDI initial context factory is using
* {@link CamelInitialContextFactory}.
*/
public JndiBeanRepository(boolean standalone) {
this.standalone = true;
}
@Override
public T lookupByNameAndType(String name, Class type) {
Object answer = lookupByName(name);
// just to be safe
if (answer == null) {
return null;
}
try {
answer = unwrap(answer);
return type.cast(answer);
} catch (Throwable e) {
String msg = "Found bean: " + name + " in JNDI Context: " + context
+ " of type: " + answer.getClass().getName() + " expected type was: " + type;
throw new NoSuchBeanException(name, msg, e);
}
}
@Override
public Object lookupByName(String name) {
try {
return unwrap(getContext().lookup(name));
} catch (NameNotFoundException e) {
return null;
} catch (NamingException e) {
return null;
}
}
@Override
public Map findByTypeWithName(Class type) {
Map answer = new LinkedHashMap<>();
try {
NamingEnumeration list = getContext().list("");
while (list.hasMore()) {
NameClassPair pair = list.next();
Object instance = context.lookup(pair.getName());
instance = unwrap(instance);
if (type.isInstance(instance)) {
answer.put(pair.getName(), type.cast(instance));
}
}
} catch (NamingException e) {
// ignore
}
return answer;
}
@Override
public Set findByType(Class type) {
Set answer = new LinkedHashSet<>();
try {
NamingEnumeration list = getContext().list("");
while (list.hasMore()) {
NameClassPair pair = list.next();
Object instance = context.lookup(pair.getName());
instance = unwrap(instance);
if (type.isInstance(instance)) {
answer.add(type.cast(instance));
}
}
} catch (NamingException e) {
// ignore
}
return answer;
}
public void close() throws NamingException {
if (context != null) {
context.close();
}
}
public Context getContext() throws NamingException {
if (context == null) {
context = createContext();
}
return context;
}
public void setContext(Context context) {
this.context = context;
}
protected Context createContext() throws NamingException {
Hashtable