CredentialManager

Description

A simple OAuth Client & CredentialManager Library, that supports multiple storage backends.

Import

Gradle:

dependencies {
    implementation("com.github.philippheuer.credentialmanager:credentialmanager:0.3.1")
}

Maven:

<dependency>
    <groupId>com.github.philippheuer.credentialmanager</groupId>
    <artifactId>credentialmanager</artifactId>
    <version>0.3.1</version>
</dependency>

Initialization

Credential Manager

CredentialManager credentialManager = CredentialManagerBuilder.builder()
    .withStorageBackend(new TemporaryStorageBackend())
    .build();

Custom Storage Backends

This is an in-memory storage backend as an example. You can provide your own storage backend by supplying it in the builder to store/load the credentials from wherever you want.

public class TemporaryStorageBackend implements IStorageBackend {

    /**
     * Holds the Credentials
     */
    private List<Credential> credentialStorage = new ArrayList<>();

    /**
     * Load the Credentials
     *
     * @return List Credential
     */
    public List<Credential> loadCredentials() {
        return this.credentialStorage;
    }

    /**
     * Save the Credentials
     *
     * @param credentials List Credential
     */
    public void saveCredentials(List<Credential> credentials) {
        this.credentialStorage = credentials;
    }
    
    /**
     * Gets a credential by user id
     *
     * @param userId User Id
     * @return Credential
     */
    public Optional<Credential> getCredentialByUserId(String userId) {
        for(Credential cred : credentialStorage) {
            if (cred.getUserId().equalsIgnoreCase(userId)) {
                return Optional.ofNullable(cred);
            }
        }

        return Optional.empty();
    }

}

License

Released under the MIT License.