de.flapdoodle.embed.mongo.spring.autoconfigure.ImmutableCredentials Maven / Gradle / Ivy
package de.flapdoodle.embed.mongo.spring.autoconfigure;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
/**
* Immutable implementation of {@link MongoClientAction.Credentials}.
*
* Use the builder to create immutable instances:
* {@code ImmutableCredentials.builder()}.
*/
@SuppressWarnings({"all"})
final class ImmutableCredentials
extends MongoClientAction.Credentials {
private final String database;
private final String username;
private final String password;
private ImmutableCredentials(String database, String username, String password) {
this.database = database;
this.username = username;
this.password = password;
}
/**
* @return The value of the {@code database} attribute
*/
@Override
public String database() {
return database;
}
/**
* @return The value of the {@code username} attribute
*/
@Override
public String username() {
return username;
}
/**
* @return The value of the {@code password} attribute
*/
@Override
public String password() {
return password;
}
/**
* Copy the current immutable object by setting a value for the {@link MongoClientAction.Credentials#database() database} attribute.
* An equals check used to prevent copying of the same value by returning {@code this}.
* @param value A new value for database
* @return A modified copy of the {@code this} object
*/
public final ImmutableCredentials withDatabase(String value) {
String newValue = Objects.requireNonNull(value, "database");
if (this.database.equals(newValue)) return this;
return new ImmutableCredentials(newValue, this.username, this.password);
}
/**
* Copy the current immutable object by setting a value for the {@link MongoClientAction.Credentials#username() username} attribute.
* An equals check used to prevent copying of the same value by returning {@code this}.
* @param value A new value for username
* @return A modified copy of the {@code this} object
*/
public final ImmutableCredentials withUsername(String value) {
String newValue = Objects.requireNonNull(value, "username");
if (this.username.equals(newValue)) return this;
return new ImmutableCredentials(this.database, newValue, this.password);
}
/**
* Copy the current immutable object by setting a value for the {@link MongoClientAction.Credentials#password() password} attribute.
* An equals check used to prevent copying of the same value by returning {@code this}.
* @param value A new value for password
* @return A modified copy of the {@code this} object
*/
public final ImmutableCredentials withPassword(String value) {
String newValue = Objects.requireNonNull(value, "password");
if (this.password.equals(newValue)) return this;
return new ImmutableCredentials(this.database, this.username, newValue);
}
/**
* This instance is equal to all instances of {@code ImmutableCredentials} that have equal attribute values.
* @return {@code true} if {@code this} is equal to {@code another} instance
*/
@Override
public boolean equals(Object another) {
if (this == another) return true;
return another instanceof ImmutableCredentials
&& equalTo(0, (ImmutableCredentials) another);
}
private boolean equalTo(int synthetic, ImmutableCredentials another) {
return database.equals(another.database)
&& username.equals(another.username)
&& password.equals(another.password);
}
/**
* Computes a hash code from attributes: {@code database}, {@code username}, {@code password}.
* @return hashCode value
*/
@Override
public int hashCode() {
int h = 5381;
h += (h << 5) + database.hashCode();
h += (h << 5) + username.hashCode();
h += (h << 5) + password.hashCode();
return h;
}
/**
* Prints the immutable value {@code Credentials} with attribute values.
* @return A string representation of the value
*/
@Override
public String toString() {
return "Credentials{"
+ "database=" + database
+ ", username=" + username
+ ", password=" + password
+ "}";
}
/**
* Creates an immutable copy of a {@link MongoClientAction.Credentials} value.
* Uses accessors to get values to initialize the new immutable instance.
* If an instance is already immutable, it is returned as is.
* @param instance The instance to copy
* @return A copied immutable Credentials instance
*/
public static ImmutableCredentials copyOf(MongoClientAction.Credentials instance) {
if (instance instanceof ImmutableCredentials) {
return (ImmutableCredentials) instance;
}
return ImmutableCredentials.builder()
.from(instance)
.build();
}
/**
* Creates a builder for {@link ImmutableCredentials ImmutableCredentials}.
*
* ImmutableCredentials.builder()
* .database(String) // required {@link MongoClientAction.Credentials#database() database}
* .username(String) // required {@link MongoClientAction.Credentials#username() username}
* .password(String) // required {@link MongoClientAction.Credentials#password() password}
* .build();
*
* @return A new ImmutableCredentials builder
*/
public static ImmutableCredentials.Builder builder() {
return new ImmutableCredentials.Builder();
}
/**
* Builds instances of type {@link ImmutableCredentials ImmutableCredentials}.
* Initialize attributes and then invoke the {@link #build()} method to create an
* immutable instance.
* {@code Builder} is not thread-safe and generally should not be stored in a field or collection,
* but instead used immediately to create instances.
*/
public static final class Builder {
private static final long INIT_BIT_DATABASE = 0x1L;
private static final long INIT_BIT_USERNAME = 0x2L;
private static final long INIT_BIT_PASSWORD = 0x4L;
private long initBits = 0x7L;
private String database;
private String username;
private String password;
private Builder() {
}
/**
* Fill a builder with attribute values from the provided {@code Credentials} instance.
* Regular attribute values will be replaced with those from the given instance.
* Absent optional values will not replace present values.
* @param instance The instance from which to copy values
* @return {@code this} builder for use in a chained invocation
*/
public final Builder from(MongoClientAction.Credentials instance) {
Objects.requireNonNull(instance, "instance");
this.database(instance.database());
this.username(instance.username());
this.password(instance.password());
return this;
}
/**
* Initializes the value for the {@link MongoClientAction.Credentials#database() database} attribute.
* @param database The value for database
* @return {@code this} builder for use in a chained invocation
*/
public final Builder database(String database) {
this.database = Objects.requireNonNull(database, "database");
initBits &= ~INIT_BIT_DATABASE;
return this;
}
/**
* Initializes the value for the {@link MongoClientAction.Credentials#username() username} attribute.
* @param username The value for username
* @return {@code this} builder for use in a chained invocation
*/
public final Builder username(String username) {
this.username = Objects.requireNonNull(username, "username");
initBits &= ~INIT_BIT_USERNAME;
return this;
}
/**
* Initializes the value for the {@link MongoClientAction.Credentials#password() password} attribute.
* @param password The value for password
* @return {@code this} builder for use in a chained invocation
*/
public final Builder password(String password) {
this.password = Objects.requireNonNull(password, "password");
initBits &= ~INIT_BIT_PASSWORD;
return this;
}
/**
* Builds a new {@link ImmutableCredentials ImmutableCredentials}.
* @return An immutable instance of Credentials
* @throws java.lang.IllegalStateException if any required attributes are missing
*/
public ImmutableCredentials build() {
if (initBits != 0) {
throw new IllegalStateException(formatRequiredAttributesMessage());
}
return new ImmutableCredentials(database, username, password);
}
private String formatRequiredAttributesMessage() {
List attributes = new ArrayList<>();
if ((initBits & INIT_BIT_DATABASE) != 0) attributes.add("database");
if ((initBits & INIT_BIT_USERNAME) != 0) attributes.add("username");
if ((initBits & INIT_BIT_PASSWORD) != 0) attributes.add("password");
return "Cannot build Credentials, some of required attributes are not set " + attributes;
}
}
}