Bail faster on not found module
[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / LocalFrontendHistory.java
1 /*
2  * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
3  *
4  * This program and the accompanying materials are made available under the
5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6  * and is available at http://www.eclipse.org/legal/epl-v10.html
7  */
8 package org.opendaylight.controller.cluster.datastore;
9
10 import static java.util.Objects.requireNonNull;
11
12 import com.google.common.collect.ImmutableMap;
13 import com.google.common.collect.RangeSet;
14 import com.google.common.collect.TreeRangeSet;
15 import com.google.common.primitives.UnsignedLong;
16 import java.util.HashMap;
17 import java.util.Map;
18 import java.util.Optional;
19 import java.util.SortedSet;
20 import org.opendaylight.controller.cluster.access.concepts.LocalHistoryIdentifier;
21 import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
22 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
23
24 /**
25  * Chained transaction specialization of {@link AbstractFrontendHistory}. It prevents concurrent open transactions.
26  *
27  * @author Robert Varga
28  */
29 final class LocalFrontendHistory extends AbstractFrontendHistory {
30     private final ShardDataTreeTransactionChain chain;
31
32     private LocalFrontendHistory(final String persistenceId, final ShardDataTree tree,
33             final ShardDataTreeTransactionChain chain, final Map<UnsignedLong, Boolean> closedTransactions,
34             final RangeSet<UnsignedLong> purgedTransactions) {
35         super(persistenceId, tree, closedTransactions, purgedTransactions);
36         this.chain = requireNonNull(chain);
37     }
38
39     static LocalFrontendHistory create(final String persistenceId, final ShardDataTree tree,
40             final ShardDataTreeTransactionChain chain) {
41         return new LocalFrontendHistory(persistenceId, tree, chain, ImmutableMap.of(), TreeRangeSet.create());
42     }
43
44     static LocalFrontendHistory recreate(final String persistenceId, final ShardDataTree tree,
45             final ShardDataTreeTransactionChain chain, final Map<UnsignedLong, Boolean> closedTransactions,
46             final RangeSet<UnsignedLong> purgedTransactions) {
47         return new LocalFrontendHistory(persistenceId, tree, chain, new HashMap<>(closedTransactions),
48             TreeRangeSet.create(purgedTransactions));
49     }
50
51     @Override
52     public LocalHistoryIdentifier getIdentifier() {
53         return chain.getIdentifier();
54     }
55
56     @Override
57     FrontendTransaction createOpenSnapshot(final TransactionIdentifier id) {
58         return FrontendReadOnlyTransaction.create(this, chain.newReadOnlyTransaction(id));
59     }
60
61     @Override
62     FrontendTransaction createOpenTransaction(final TransactionIdentifier id) {
63         return FrontendReadWriteTransaction.createOpen(this, chain.newReadWriteTransaction(id));
64     }
65
66     @Override
67     FrontendTransaction createReadyTransaction(final TransactionIdentifier id, final DataTreeModification mod) {
68         return FrontendReadWriteTransaction.createReady(this, id, mod);
69     }
70
71     @Override
72     ShardDataTreeCohort createFailedCohort(final TransactionIdentifier id, final DataTreeModification mod,
73             final Exception failure) {
74         return chain.createFailedCohort(id, mod, failure);
75     }
76
77     @Override
78     ShardDataTreeCohort createReadyCohort(final TransactionIdentifier id, final DataTreeModification mod,
79             final Optional<SortedSet<String>> participatingShardNames) {
80         return chain.createReadyCohort(id, mod, participatingShardNames);
81     }
82 }

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