/*
* Copyright 2011-2016 the original author or authors.
*
* 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 org.glowroot.agent.impl;
import javax.annotation.Nullable;
import org.glowroot.agent.impl.TransactionCollection.TransactionEntry;
import org.glowroot.agent.plugin.api.util.FastThreadLocal;
import org.glowroot.agent.plugin.api.util.FastThreadLocal.Holder;
import org.glowroot.common.util.UsedByGeneratedBytecode;
import static org.glowroot.agent.util.Checkers.castInitialized;
public class TransactionRegistry {
// collection of active running transactions
private final TransactionCollection transactions = new TransactionCollection();
// active thread context being executed by the current thread
private final FastThreadLocal</*@Nullable*/ ThreadContextImpl> currentThreadContext =
new FastThreadLocal</*@Nullable*/ ThreadContextImpl>();
public TransactionRegistry() {
TransactionRegistryHolder.transactionRegistry = castInitialized(this);
}
@Nullable
Transaction getCurrentTransaction() {
ThreadContextImpl threadContext = currentThreadContext.get();
if (threadContext == null) {
return null;
}
return threadContext.getTransaction();
}
@UsedByGeneratedBytecode
public Holder</*@Nullable*/ ThreadContextImpl> getCurrentThreadContextHolder() {
return currentThreadContext.getHolder();
}
TransactionEntry addTransaction(Transaction transaction) {
return transactions.add(transaction);
}
public Iterable<Transaction> getTransactions() {
return transactions;
}
@UsedByGeneratedBytecode
public static class TransactionRegistryHolder {
private static @Nullable TransactionRegistry transactionRegistry;
private TransactionRegistryHolder() {}
public static @Nullable TransactionRegistry getTransactionRegistry() {
return transactionRegistry;
}
}
}