Improve segmented journal actor metrics

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / TransactionChainProxy.java

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/TransactionChainProxy.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/TransactionChainProxy.java
deleted file mode 100644 (file)
index cf261cb..0000000
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/TransactionChainProxy.java
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-
-package org.opendaylight.controller.cluster.datastore;
-
-import com.google.common.base.Preconditions;
-import java.util.Collections;
-import java.util.List;
-import java.util.concurrent.atomic.AtomicInteger;
-import org.opendaylight.controller.cluster.datastore.messages.CloseTransactionChain;
-import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionChainClosedException;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
-import scala.concurrent.Future;
-
-/**
- * TransactionChainProxy acts as a proxy for a DOMStoreTransactionChain created on a remote shard
- */
-public class TransactionChainProxy implements DOMStoreTransactionChain {
-
-    private interface State {
-        boolean isReady();
-
-        List<Future<Object>> getPreviousReadyFutures();
-    }
-
-    private static class Allocated implements State {
-        private final ChainedTransactionProxy transaction;
-
-        Allocated(ChainedTransactionProxy transaction) {
-            this.transaction = transaction;
-        }
-
-        @Override
-        public boolean isReady() {
-            return transaction.isReady();
-        }
-
-        @Override
-        public List<Future<Object>> getPreviousReadyFutures() {
-            return transaction.getReadyFutures();
-        }
-    }
-
-    private static abstract class AbstractDefaultState implements State {
-        @Override
-        public List<Future<Object>> getPreviousReadyFutures() {
-            return Collections.emptyList();
-        }
-    }
-
-    private static final State IDLE_STATE = new AbstractDefaultState() {
-        @Override
-        public boolean isReady() {
-            return true;
-        }
-    };
-
-    private static final State CLOSED_STATE = new AbstractDefaultState() {
-        @Override
-        public boolean isReady() {
-            throw new TransactionChainClosedException("Transaction chain has been closed");
-        }
-    };
-
-    private static final AtomicInteger counter = new AtomicInteger(0);
-
-    private final ActorContext actorContext;
-    private final String transactionChainId;
-    private volatile State currentState = IDLE_STATE;
-
-    public TransactionChainProxy(ActorContext actorContext) {
-        this.actorContext = actorContext;
-        transactionChainId = actorContext.getCurrentMemberName() + "-txn-chain-" + counter.incrementAndGet();
-    }
-
-    public String getTransactionChainId() {
-        return transactionChainId;
-    }
-
-    @Override
-    public DOMStoreReadTransaction newReadOnlyTransaction() {
-        State localState = currentState;
-        checkReadyState(localState);
-
-        return new ChainedTransactionProxy(actorContext, TransactionProxy.TransactionType.READ_ONLY,
-                transactionChainId, localState.getPreviousReadyFutures());
-    }
-
-    @Override
-    public DOMStoreReadWriteTransaction newReadWriteTransaction() {
-        actorContext.acquireTxCreationPermit();
-        return allocateWriteTransaction(TransactionProxy.TransactionType.READ_WRITE);
-    }
-
-    @Override
-    public DOMStoreWriteTransaction newWriteOnlyTransaction() {
-        actorContext.acquireTxCreationPermit();
-        return allocateWriteTransaction(TransactionProxy.TransactionType.WRITE_ONLY);
-    }
-
-    @Override
-    public void close() {
-        currentState = CLOSED_STATE;
-
-        // Send a close transaction chain request to each and every shard
-        actorContext.broadcast(new CloseTransactionChain(transactionChainId).toSerializable());
-    }
-
-    private ChainedTransactionProxy allocateWriteTransaction(TransactionProxy.TransactionType type) {
-        State localState = currentState;
-
-        checkReadyState(localState);
-
-        // Pass the ready Futures from the previous Tx.
-        ChainedTransactionProxy txProxy = new ChainedTransactionProxy(actorContext, type,
-                transactionChainId, localState.getPreviousReadyFutures());
-
-        currentState = new Allocated(txProxy);
-
-        return txProxy;
-    }
-
-    private void checkReadyState(State state) {
-        Preconditions.checkState(state.isReady(), "Previous transaction is not ready yet");
-    }
-}