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src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java

Summary

Maintainability
F
3 days
Test Coverage

File EventStoreLayer.java has 433 lines of code (exceeds 250 allowed). Consider refactoring.
Open

package com.eventfully.foundationdb.eventstore;

import com.apple.foundationdb.Database;
import com.apple.foundationdb.KeySelector;
import com.apple.foundationdb.KeyValue;
Severity: Minor
Found in src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java - About 6 hrs to fix

    EventStoreLayer has 25 methods (exceeds 20 allowed). Consider refactoring.
    Open

    public class EventStoreLayer implements EventStore {

    private static final Logger LOG = LoggerFactory.getLogger(EventStoreLayer.class);

    public static final int MAX_READ_SIZE = 4096;
    Severity: Minor
    Found in src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java - About 2 hrs to fix

      Method readAllBackwardInternal has 56 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

          private CompletableFuture<ReadAllSlice> readAllBackwardInternal(ReadTransaction tr, Versionstamp fromPositionInclusive, int maxCount) {
        Subspace globalSubspace = getGlobalSubspace();

        // add one so we can determine if we are at the end of the stream
        int rangeCount = maxCount + 1;
      Severity: Major
      Found in src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java - About 2 hrs to fix

        Method readAllForwardInternal has 51 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

            private CompletableFuture<ReadAllSlice> readAllForwardInternal(ReadTransaction tr, Versionstamp fromPositionInclusive, int maxCount) {
        Subspace globalSubspace = getGlobalSubspace();

        // add one so we can determine if we are at the end of the stream
        int rangeCount = maxCount + 1;
        Severity: Major
        Found in src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java - About 2 hrs to fix

          Method readStreamForwardsInternal has 39 lines of code (exceeds 25 allowed). Consider refactoring.
          Open

              private CompletableFuture<ReadStreamSlice> readStreamForwardsInternal(ReadTransaction tr,
                                                                          StreamId streamId,
                                                                          long fromVersionInclusive,
                                                                          int maxCount) {
        Subspace streamSubspace = getStreamSubspace(streamId);
          Severity: Minor
          Found in src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java - About 1 hr to fix

            Method readStreamBackwardsInternal has 36 lines of code (exceeds 25 allowed). Consider refactoring.
            Open

                private CompletableFuture<ReadStreamSlice> readStreamBackwardsInternal(ReadTransaction tr,
                                                                           StreamId streamId,
                                                                           long fromVersionInclusive,
                                                                           int maxCount) {
        Subspace streamSubspace = getStreamSubspace(streamId);
            Severity: Minor
            Found in src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java - About 1 hr to fix

              Method setStreamMetadata has 5 arguments (exceeds 4 allowed). Consider refactoring.
              Open

                  public SetStreamMetadataResult setStreamMetadata(String streamId,
                                                     long expectedStreamMetadataVersion,
                                                     Integer maxAge,
                                                     Integer maxCount,
                                                     String metadataJson) {
              Severity: Minor
              Found in src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java - About 35 mins to fix

                Similar blocks of code found in 2 locations. Consider refactoring.
                Open

                        return kvs.thenCompose(keyValues -> {
            if (keyValues.isEmpty()) {
                return completedFuture(ReadStreamSlice.notFound(streamId, fromVersionInclusive, ReadDirection.FORWARD, readNext));
            }
                Severity: Major
                Found in src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java and 1 other location - About 3 hrs to fix
                src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java on lines 462..490

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 190.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Similar blocks of code found in 2 locations. Consider refactoring.
                Open

                        return kvs.thenCompose(keyValues -> {
            if (keyValues.isEmpty()) {
                return completedFuture(ReadStreamSlice.notFound(streamId, fromVersionInclusive, ReadDirection.BACKWARD, readNext));
            }
                Severity: Major
                Found in src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java and 1 other location - About 3 hrs to fix
                src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java on lines 402..430

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 190.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Similar blocks of code found in 2 locations. Consider refactoring.
                Open

                    @Override
    public CompletableFuture<ReadStreamSlice> readStreamForwards(String streamId, long fromVersionInclusive, int maxCount) {
        Preconditions.checkNotNull(streamId);
        Preconditions.checkArgument(fromVersionInclusive >= -1, "fromVersionInclusive must greater than -1");
        Preconditions.checkArgument(maxCount > 0, "maxCount must be greater than 0");
                Severity: Major
                Found in src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java and 1 other location - About 1 hr to fix
                src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java on lines 433..441

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 82.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Similar blocks of code found in 2 locations. Consider refactoring.
                Open

                    @Override
    public CompletableFuture<ReadStreamSlice> readStreamBackwards(String streamId, long fromVersionInclusive, int maxCount) {
        Preconditions.checkNotNull(streamId);
        Preconditions.checkArgument(fromVersionInclusive >= -1, "fromVersionInclusive must greater than -1");
        Preconditions.checkArgument(maxCount > 0, "maxCount must be greater than 0");
                Severity: Major
                Found in src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java and 1 other location - About 1 hr to fix
                src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java on lines 368..376

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 82.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Identical blocks of code found in 2 locations. Consider refactoring.
                Open

                            for (int i = 0; i < limit; i++) {
                KeyValue kv = keyValues.get(i);
                Tuple t = Tuple.fromBytes(kv.getValue());
                completableFutures.add(readEvent(t.getString(0), t.getLong(1)));
            }
                Severity: Minor
                Found in src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java and 1 other location - About 55 mins to fix
                src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java on lines 337..341

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 66.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Identical blocks of code found in 2 locations. Consider refactoring.
                Open

                            for (int i = 0; i < limit; i++) {
                KeyValue kv = keyValues.get(i);
                Tuple t = Tuple.fromBytes(kv.getValue());
                completableFutures.add(readEvent(t.getString(0), t.getLong(1)));
            }
                Severity: Minor
                Found in src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java and 1 other location - About 55 mins to fix
                src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java on lines 259..263

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 66.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Similar blocks of code found in 2 locations. Consider refactoring.
                Open

                    @Override
    public CompletableFuture<ReadAllSlice> readAllForwards(Versionstamp fromPositionInclusive, int maxCount) {
        Preconditions.checkNotNull(fromPositionInclusive);
        Preconditions.checkArgument(maxCount > 0, "maxCount must be greater than 0");
        Preconditions.checkArgument(maxCount <= MAX_READ_SIZE, "maxCount should be less than %d", MAX_READ_SIZE);
                Severity: Minor
                Found in src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java and 1 other location - About 50 mins to fix
                src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java on lines 215..222

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 61.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Similar blocks of code found in 2 locations. Consider refactoring.
                Open

                    @Override
    public CompletableFuture<ReadAllSlice> readAllBackwards(Versionstamp fromPositionInclusive, int maxCount) {
        Preconditions.checkNotNull(fromPositionInclusive);
        Preconditions.checkArgument(maxCount > 0, "maxCount must be greater than 0");
        Preconditions.checkArgument(maxCount <= MAX_READ_SIZE, "maxCount should be less than %d", MAX_READ_SIZE);
                Severity: Minor
                Found in src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java and 1 other location - About 50 mins to fix
                src/main/java/com/eventfully/foundationdb/eventstore/EventStoreLayer.java on lines 206..213

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 61.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

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