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Refactoring - change API for creating GitDBBranch

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This commit is contained in:
Paul Campbell 2018-06-13 21:10:12 +01:00
parent 8aabdf8be3
commit f2ee721ec4
2 changed files with 41 additions and 28 deletions
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48
src/main/java/net/kemitix/gitdb/GitDBBranch.java
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@ -23,13 +23,14 @@ package net.kemitix.gitdb;
import lombok.AccessLevel;
import lombok.RequiredArgsConstructor;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import java.io.*;
import java.nio.charset.StandardCharsets;
import java.util.Optional;
import java.util.function.Function;
/**
* API for interacting with a branch in a GirDB.
@ -45,22 +46,29 @@ public class GitDBBranch {
private final String userName;
private final String userEmailAddress;
/**
* Create a new instance of GitDBBranch for the Ref.
*
* @param ref the Ref
* @param gitDBRepo the GitDBRepo
* @param userName the user name
* @param userEmailAddress the user email address
* @return a GitDBBranch
*/
public static GitDBBranch withRef(
final Ref ref,
private static GitDBBranch select(
final Ref branchRef,
final GitDBRepo gitDBRepo,
final String userName,
final String userEmailAddress
) {
return new GitDBBranch(ref, gitDBRepo, userName, userEmailAddress);
return new GitDBBranch(branchRef, gitDBRepo, userName, userEmailAddress);
}
/**
* Initialise the creation of new GitDBBranch instances.
*
* @param repository the Git Repository
* @param userName the user name to record against changes
* @param userEmailAddress the user's email address to record against changes
* @return a Function for creating a GitDBBranch when supplied with a Ref for a branch
*/
static Function<Ref, GitDBBranch> init(
final Repository repository,
final String userName,
final String userEmailAddress
) {
return ref -> select(ref, GitDBRepo.in(repository), userName, userEmailAddress);
}
/**
@ -109,19 +117,13 @@ public class GitDBBranch {
return gitDBRepo.insertTree(branchRef, key, valueId);
}
private ObjectId insertCommit(
final ObjectId treeId,
final String message
) throws IOException {
return gitDBRepo.insertCommit(treeId, message, userName, userEmailAddress, head());
}
private AnyObjectId head() {
return branchRef.getObjectId();
private ObjectId insertCommit(final ObjectId treeId, final String message) throws IOException {
final ObjectId headCommitId = branchRef.getObjectId();
return gitDBRepo.insertCommit(treeId, message, userName, userEmailAddress, headCommitId);
}
private GitDBBranch updateBranch(final ObjectId commitId) throws IOException {
final Ref updatedRef = gitDBRepo.writeHead(branchRef.getName(), commitId);
return GitDBBranch.withRef(updatedRef, gitDBRepo, userName, userEmailAddress);
return select(updatedRef, gitDBRepo, userName, userEmailAddress);
}
}

21
src/main/java/net/kemitix/gitdb/LocalGitDB.java
View file

@ -21,21 +21,20 @@
package net.kemitix.gitdb;
import lombok.RequiredArgsConstructor;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.lib.*;
import java.io.IOException;
import java.nio.file.Path;
import java.util.Optional;
import java.util.function.Function;
/**
* Implementation of GitDB for working with a local Repo.
*
* @author Paul Campbell (pcampbell@kemitix.net)
*/
@RequiredArgsConstructor
class LocalGitDB implements GitDB {
final class LocalGitDB implements GitDB {
private static final String NOT_A_BARE_REPO = "Not a bare repo";
private static final String ERROR_OPENING_REPOSITORY = "Error opening repository";
@ -44,6 +43,19 @@ class LocalGitDB implements GitDB {
private final String userName;
private final String userEmailAddress;
private final Function<Ref, GitDBBranch> branchInit;
private LocalGitDB(
final Repository repository,
final String userName,
final String userEmailAddress
) {
this.repository = repository;
this.userName = userName;
this.userEmailAddress = userEmailAddress;
branchInit = GitDBBranch.init(this.repository, this.userName, this.userEmailAddress);
}
/**
* Create a new GitDB instance using the Git repo.
*
@ -88,8 +100,7 @@ class LocalGitDB implements GitDB {
@Override
public Optional<GitDBBranch> branch(final String name) throws IOException {
return Optional.ofNullable(repository.findRef(name))
.map(ref -> GitDBBranch.withRef(ref, GitDBRepo.in(repository), userName, userEmailAddress));
return Optional.ofNullable(repository.findRef(name)).map(branchInit);
}
}