org.jresearch.gavka.rest.data.ImmutableGroupInfo Maven / Gradle / Ivy
package org.jresearch.gavka.rest.data;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.MoreObjects;
import com.google.common.primitives.Longs;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import com.google.errorprone.annotations.Var;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import javax.annotation.CheckReturnValue;
import javax.annotation.Nullable;
import javax.annotation.ParametersAreNonnullByDefault;
import javax.annotation.concurrent.Immutable;
import javax.annotation.concurrent.NotThreadSafe;
import org.immutables.value.Generated;
/**
* Immutable implementation of {@link GroupInfo}.
*
* Use the builder to create immutable instances:
* {@code new ImmutableGroupInfo.Builder()}.
*/
@Generated(from = "GroupInfo", generator = "Immutables")
@SuppressWarnings({"all"})
@ParametersAreNonnullByDefault
@javax.annotation.Generated("org.immutables.processor.ProxyProcessor")
@Immutable
@CheckReturnValue
public final class ImmutableGroupInfo implements GroupInfo {
private final String groupId;
private final int partition;
private final long currentOffset;
private final long lag;
private ImmutableGroupInfo(String groupId, int partition, long currentOffset, long lag) {
this.groupId = groupId;
this.partition = partition;
this.currentOffset = currentOffset;
this.lag = lag;
}
/**
* @return The value of the {@code groupId} attribute
*/
@JsonProperty("groupId")
@Override
public String groupId() {
return groupId;
}
/**
* @return The value of the {@code partition} attribute
*/
@JsonProperty("partition")
@Override
public int partition() {
return partition;
}
/**
* @return The value of the {@code currentOffset} attribute
*/
@JsonProperty("currentOffset")
@Override
public long currentOffset() {
return currentOffset;
}
/**
* @return The value of the {@code lag} attribute
*/
@JsonProperty("lag")
@Override
public long lag() {
return lag;
}
/**
* Copy the current immutable object by setting a value for the {@link GroupInfo#groupId() groupId} attribute.
* An equals check used to prevent copying of the same value by returning {@code this}.
* @param value A new value for groupId
* @return A modified copy of the {@code this} object
*/
public final ImmutableGroupInfo withGroupId(String value) {
String newValue = Objects.requireNonNull(value, "groupId");
if (this.groupId.equals(newValue)) return this;
return new ImmutableGroupInfo(newValue, this.partition, this.currentOffset, this.lag);
}
/**
* Copy the current immutable object by setting a value for the {@link GroupInfo#partition() partition} attribute.
* A value equality check is used to prevent copying of the same value by returning {@code this}.
* @param value A new value for partition
* @return A modified copy of the {@code this} object
*/
public final ImmutableGroupInfo withPartition(int value) {
if (this.partition == value) return this;
return new ImmutableGroupInfo(this.groupId, value, this.currentOffset, this.lag);
}
/**
* Copy the current immutable object by setting a value for the {@link GroupInfo#currentOffset() currentOffset} attribute.
* A value equality check is used to prevent copying of the same value by returning {@code this}.
* @param value A new value for currentOffset
* @return A modified copy of the {@code this} object
*/
public final ImmutableGroupInfo withCurrentOffset(long value) {
if (this.currentOffset == value) return this;
return new ImmutableGroupInfo(this.groupId, this.partition, value, this.lag);
}
/**
* Copy the current immutable object by setting a value for the {@link GroupInfo#lag() lag} attribute.
* A value equality check is used to prevent copying of the same value by returning {@code this}.
* @param value A new value for lag
* @return A modified copy of the {@code this} object
*/
public final ImmutableGroupInfo withLag(long value) {
if (this.lag == value) return this;
return new ImmutableGroupInfo(this.groupId, this.partition, this.currentOffset, value);
}
/**
* This instance is equal to all instances of {@code ImmutableGroupInfo} that have equal attribute values.
* @return {@code true} if {@code this} is equal to {@code another} instance
*/
@Override
public boolean equals(@Nullable Object another) {
if (this == another) return true;
return another instanceof ImmutableGroupInfo
&& equalTo((ImmutableGroupInfo) another);
}
private boolean equalTo(ImmutableGroupInfo another) {
return groupId.equals(another.groupId)
&& partition == another.partition
&& currentOffset == another.currentOffset
&& lag == another.lag;
}
/**
* Computes a hash code from attributes: {@code groupId}, {@code partition}, {@code currentOffset}, {@code lag}.
* @return hashCode value
*/
@Override
public int hashCode() {
@Var int h = 5381;
h += (h << 5) + groupId.hashCode();
h += (h << 5) + partition;
h += (h << 5) + Longs.hashCode(currentOffset);
h += (h << 5) + Longs.hashCode(lag);
return h;
}
/**
* Prints the immutable value {@code GroupInfo} with attribute values.
* @return A string representation of the value
*/
@Override
public String toString() {
return MoreObjects.toStringHelper("GroupInfo")
.omitNullValues()
.add("groupId", groupId)
.add("partition", partition)
.add("currentOffset", currentOffset)
.add("lag", lag)
.toString();
}
/**
* Creates an immutable copy of a {@link GroupInfo} 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 GroupInfo instance
*/
public static ImmutableGroupInfo copyOf(GroupInfo instance) {
if (instance instanceof ImmutableGroupInfo) {
return (ImmutableGroupInfo) instance;
}
return new ImmutableGroupInfo.Builder()
.from(instance)
.build();
}
/**
* Builds instances of type {@link ImmutableGroupInfo ImmutableGroupInfo}.
* 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.
*/
@Generated(from = "GroupInfo", generator = "Immutables")
@NotThreadSafe
public static final class Builder {
private static final long INIT_BIT_GROUP_ID = 0x1L;
private static final long INIT_BIT_PARTITION = 0x2L;
private static final long INIT_BIT_CURRENT_OFFSET = 0x4L;
private static final long INIT_BIT_LAG = 0x8L;
private long initBits = 0xfL;
private @Nullable String groupId;
private int partition;
private long currentOffset;
private long lag;
/**
* Creates a builder for {@link ImmutableGroupInfo ImmutableGroupInfo} instances.
*
* new ImmutableGroupInfo.Builder()
* .groupId(String) // required {@link GroupInfo#groupId() groupId}
* .partition(int) // required {@link GroupInfo#partition() partition}
* .currentOffset(long) // required {@link GroupInfo#currentOffset() currentOffset}
* .lag(long) // required {@link GroupInfo#lag() lag}
* .build();
*
*/
public Builder() {
}
/**
* Fill a builder with attribute values from the provided {@code GroupInfo} 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
*/
@CanIgnoreReturnValue
public final Builder from(GroupInfo instance) {
Objects.requireNonNull(instance, "instance");
groupId(instance.groupId());
partition(instance.partition());
currentOffset(instance.currentOffset());
lag(instance.lag());
return this;
}
/**
* Initializes the value for the {@link GroupInfo#groupId() groupId} attribute.
* @param groupId The value for groupId
* @return {@code this} builder for use in a chained invocation
*/
@CanIgnoreReturnValue
@JsonProperty("groupId")
public final Builder groupId(String groupId) {
this.groupId = Objects.requireNonNull(groupId, "groupId");
initBits &= ~INIT_BIT_GROUP_ID;
return this;
}
/**
* Initializes the value for the {@link GroupInfo#partition() partition} attribute.
* @param partition The value for partition
* @return {@code this} builder for use in a chained invocation
*/
@CanIgnoreReturnValue
@JsonProperty("partition")
public final Builder partition(int partition) {
this.partition = partition;
initBits &= ~INIT_BIT_PARTITION;
return this;
}
/**
* Initializes the value for the {@link GroupInfo#currentOffset() currentOffset} attribute.
* @param currentOffset The value for currentOffset
* @return {@code this} builder for use in a chained invocation
*/
@CanIgnoreReturnValue
@JsonProperty("currentOffset")
public final Builder currentOffset(long currentOffset) {
this.currentOffset = currentOffset;
initBits &= ~INIT_BIT_CURRENT_OFFSET;
return this;
}
/**
* Initializes the value for the {@link GroupInfo#lag() lag} attribute.
* @param lag The value for lag
* @return {@code this} builder for use in a chained invocation
*/
@CanIgnoreReturnValue
@JsonProperty("lag")
public final Builder lag(long lag) {
this.lag = lag;
initBits &= ~INIT_BIT_LAG;
return this;
}
/**
* Builds a new {@link ImmutableGroupInfo ImmutableGroupInfo}.
* @return An immutable instance of GroupInfo
* @throws java.lang.IllegalStateException if any required attributes are missing
*/
public ImmutableGroupInfo build() {
if (initBits != 0) {
throw new IllegalStateException(formatRequiredAttributesMessage());
}
return new ImmutableGroupInfo(groupId, partition, currentOffset, lag);
}
private String formatRequiredAttributesMessage() {
List attributes = new ArrayList<>();
if ((initBits & INIT_BIT_GROUP_ID) != 0) attributes.add("groupId");
if ((initBits & INIT_BIT_PARTITION) != 0) attributes.add("partition");
if ((initBits & INIT_BIT_CURRENT_OFFSET) != 0) attributes.add("currentOffset");
if ((initBits & INIT_BIT_LAG) != 0) attributes.add("lag");
return "Cannot build GroupInfo, some of required attributes are not set " + attributes;
}
}
}