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/*
* 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.ignite.cache.jta.reflect;
import java.lang.reflect.InvocationTargetException;
import javax.transaction.TransactionManager;
import org.apache.ignite.IgniteException;
import org.apache.ignite.cache.jta.CacheTmLookup;
import org.apache.ignite.internal.util.typedef.internal.A;
/**
* Implementation of {@link org.apache.ignite.cache.jta.CacheTmLookup} interface that attempts to obtain
* JTA manager by calling static method on the class.
*/
public class CacheReflectionTmLookup implements CacheTmLookup {
/** */
private String cls;
/** */
private String mtd;
/**
* Creates uninitialized reflection TM lookup.
*/
public CacheReflectionTmLookup() { /* No-op. */ }
/**
* Creates generic TM lookup with given class and method name.
*
* @param cls Class name.
* @param mtd Method name on that the class.
*/
public CacheReflectionTmLookup(String cls, String mtd) {
A.notNull(cls, "cls");
A.notNull(mtd, "mtd");
this.cls = cls;
this.mtd = mtd;
}
/**
* Gets class name to use.
*
* @return Class name to use.
*/
public String getClassName() {
return cls;
}
/**
* Sets class name to use.
*
* @param cls Class name to use.
*/
public void setClassName(String cls) {
A.notNull(cls, "cls");
this.cls = cls;
}
/**
* Gets method name.
*
* @return Method name to use.
*/
public String getMethodName() {
return mtd;
}
/**
* Sets method name.
*
* @param mtd Method name to use.
*/
public void setMethodName(String mtd) {
A.notNull(mtd, "mtd");
this.mtd = mtd;
}
/** {@inheritDoc} */
@Override public TransactionManager getTm() throws IgniteException {
assert cls != null;
assert mtd != null;
try {
return (TransactionManager)Class.forName(cls).getMethod(mtd).invoke(null);
}
catch (ClassNotFoundException e) {
throw new IgniteException("Failed to find class: " + cls, e);
}
catch (NoSuchMethodException e) {
throw new IgniteException("Failed to find method: " + mtd, e);
}
catch (InvocationTargetException | IllegalAccessException e) {
throw new IgniteException("Failed to invoke method: " + mtd, e);
}
}
}