org.apache.jackrabbit.oak.plugins.document.util.ReadOnlyDocumentStoreWrapperFactory 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.jackrabbit.oak.plugins.document.util;
import com.google.common.collect.Sets;
import org.apache.jackrabbit.oak.plugins.document.DocumentStore;
import javax.annotation.Nonnull;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.Arrays;
import java.util.Set;
public class ReadOnlyDocumentStoreWrapperFactory {
private static final Set unsupportedMethods = Sets.newHashSet(
"remove", "create", "update", "createOrUpdate", "findAndUpdate");
public static DocumentStore getInstance(@Nonnull final DocumentStore delegate) {
return (DocumentStore)Proxy.newProxyInstance(DocumentStore.class.getClassLoader(),
new Class[]{DocumentStore.class},
new InvocationHandler() {
@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
if (unsupportedMethods.contains(method.getName())) {
throw new UnsupportedOperationException(String.format("Method - %s. Params: %s",
method.getName(), Arrays.toString(args)));
}
return method.invoke(delegate, args);
}
});
}
}