/*
* 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.openejb.assembler.classic;
import static org.apache.openejb.assembler.classic.MethodInfoUtil.resolveAttributes;
import static org.apache.openejb.assembler.classic.MethodInfoUtil.resolveViewAttributes;
import org.apache.openejb.BeanContext;
import org.apache.openejb.core.transaction.TransactionType;
import org.apache.openejb.OpenEJBException;
import org.apache.openejb.util.Logger;
import org.apache.openejb.util.LogCategory;
import java.util.List;
import java.util.HashMap;
import java.util.Map;
import java.util.ArrayList;
import java.util.Collections;
import java.lang.reflect.Method;
/**
* @version $Rev: 1153797 $ $Date: 2011-08-04 11:09:44 +0200 (Thu, 04 Aug 2011) $
*/
public class MethodTransactionBuilder {
public static final Logger logger = Logger.getInstance(LogCategory.OPENEJB_STARTUP, MethodTransactionBuilder.class);
public void build(HashMap<String, BeanContext> deployments, List<MethodTransactionInfo> methodTransactions) throws OpenEJBException {
for (BeanContext beanContext : deployments.values()) {
applyTransactionAttributes(beanContext, methodTransactions);
}
}
public static void applyTransactionAttributes(BeanContext beanContext, List<MethodTransactionInfo> methodTransactionInfos) throws OpenEJBException {
if (beanContext.isBeanManagedTransaction()) return;
methodTransactionInfos = normalize(methodTransactionInfos);
final Map<MethodInfoUtil.ViewMethod, MethodAttributeInfo> attributes = resolveViewAttributes(methodTransactionInfos, beanContext);
Logger log = Logger.getInstance(LogCategory.OPENEJB_STARTUP.createChild("attributes"), MethodTransactionBuilder.class);
final boolean debug = log.isDebugEnabled();
for (Map.Entry<MethodInfoUtil.ViewMethod, MethodAttributeInfo> entry : attributes.entrySet()) {
final MethodInfoUtil.ViewMethod viewMethod = entry.getKey();
final Method method = viewMethod.getMethod();
final String view = viewMethod.getView();
MethodTransactionInfo transactionInfo = (MethodTransactionInfo) entry.getValue();
if (debug) log.debug("Transaction Attribute: " + method + " -- " + MethodInfoUtil.toString(transactionInfo));
beanContext.setMethodTransactionAttribute(method, TransactionType.get(transactionInfo.transAttribute), view);
}
}
private static String getMethodInterface(MethodTransactionInfo value) {
// We can only do this because we have previously processed all the
// MethodTransactionInfo objects so there is one per method
// It makes code like this easier to handle
for (MethodInfo methodInfo : value.methods) {
return methodInfo.methodIntf;
}
return null;
}
/**
* This method splits the MethodTransactionInfo objects so that there is
* exactly one MethodInfo per MethodTransactionInfo. A single MethodTransactionInfo
* with three MethodInfos would be expanded into three MethodTransactionInfo with
* one MethodInfo each.
*
* The MethodTransactionInfo list is then sorted from least to most specific.
*
* @param infos
* @return a normalized list of new MethodTransactionInfo objects
*/
public static List<MethodTransactionInfo> normalize(List<MethodTransactionInfo> infos){
List<MethodTransactionInfo> normalized = new ArrayList<MethodTransactionInfo>();
for (MethodTransactionInfo oldInfo : infos) {
for (MethodInfo methodInfo : oldInfo.methods) {
MethodTransactionInfo newInfo = new MethodTransactionInfo();
newInfo.description = oldInfo.description;
newInfo.methods.add(methodInfo);
newInfo.transAttribute = oldInfo.transAttribute;
normalized.add(newInfo);
}
}
Collections.reverse(normalized);
Collections.sort(normalized, new MethodTransactionComparator());
return normalized;
}
public static class MethodTransactionComparator extends MethodInfoUtil.BaseComparator<MethodTransactionInfo> {
public int compare(MethodTransactionInfo a, MethodTransactionInfo b) {
return compare(a.methods.get(0), b.methods.get(0));
}
}
}