org.mandas.docker.client.messages.ImmutableRegistryConfigs Maven / Gradle / Ivy
package org.mandas.docker.client.messages;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Objects;
/**
* Immutable implementation of {@link RegistryConfigs}.
*
* Use the builder to create immutable instances:
* {@code ImmutableRegistryConfigs.builder()}.
*/
@SuppressWarnings({"all"})
final class ImmutableRegistryConfigs implements RegistryConfigs {
private final Map configs;
private ImmutableRegistryConfigs(Map configs) {
this.configs = configs;
}
/**
* @return The value of the {@code configs} attribute
*/
@Override
public Map configs() {
return configs;
}
/**
* Copy the current immutable object by replacing the {@link RegistryConfigs#configs() configs} map with the specified map.
* Nulls are not permitted as keys or values.
* A shallow reference equality check is used to prevent copying of the same value by returning {@code this}.
* @param entries The entries to be added to the configs map
* @return A modified copy of {@code this} object
*/
public final ImmutableRegistryConfigs withConfigs(Map entries) {
if (this.configs == entries) return this;
Map newValue = createUnmodifiableMap(true, false, entries);
return new ImmutableRegistryConfigs(newValue);
}
/**
* This instance is equal to all instances of {@code ImmutableRegistryConfigs} 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 ImmutableRegistryConfigs
&& equalTo(0, (ImmutableRegistryConfigs) another);
}
private boolean equalTo(int synthetic, ImmutableRegistryConfigs another) {
return configs.equals(another.configs);
}
/**
* Computes a hash code from attributes: {@code configs}.
* @return hashCode value
*/
@Override
public int hashCode() {
int h = 5381;
h += (h << 5) + configs.hashCode();
return h;
}
/**
* Prints the immutable value {@code RegistryConfigs} with attribute values.
* @return A string representation of the value
*/
@Override
public String toString() {
return "RegistryConfigs{"
+ "configs=" + configs
+ "}";
}
/**
* Creates an immutable copy of a {@link RegistryConfigs} 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 RegistryConfigs instance
*/
public static ImmutableRegistryConfigs copyOf(RegistryConfigs instance) {
if (instance instanceof ImmutableRegistryConfigs) {
return (ImmutableRegistryConfigs) instance;
}
return ImmutableRegistryConfigs.builder()
.from(instance)
.build();
}
/**
* Creates a builder for {@link ImmutableRegistryConfigs ImmutableRegistryConfigs}.
*
* ImmutableRegistryConfigs.builder()
* .addConfig|putAllConfigs(String => org.mandas.docker.client.messages.RegistryAuth) // {@link RegistryConfigs#configs() configs} mappings
* .build();
*
* @return A new ImmutableRegistryConfigs builder
*/
public static ImmutableRegistryConfigs.Builder builder() {
return new ImmutableRegistryConfigs.Builder();
}
/**
* Builds instances of type {@link ImmutableRegistryConfigs ImmutableRegistryConfigs}.
* 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.
*/
static final class Builder implements RegistryConfigs.Builder {
private Map configs = new LinkedHashMap();
private Builder() {
}
/**
* Fill a builder with attribute values from the provided {@code RegistryConfigs} instance.
* Regular attribute values will be replaced with those from the given instance.
* Absent optional values will not replace present values.
* Collection elements and entries will be added, not replaced.
* @param instance The instance from which to copy values
* @return {@code this} builder for use in a chained invocation
*/
public final Builder from(RegistryConfigs instance) {
Objects.requireNonNull(instance, "instance");
putAllConfigs(instance.configs());
return this;
}
/**
* Put one entry to the {@link RegistryConfigs#configs() configs} map.
* @param key The key in the configs map
* @param value The associated value in the configs map
* @return {@code this} builder for use in a chained invocation
*/
public final Builder addConfig(String key, RegistryAuth value) {
this.configs.put(
Objects.requireNonNull(key, "configs key"),
Objects.requireNonNull(value, value == null ? "configs value for key: " + key : null));
return this;
}
/**
* Put one entry to the {@link RegistryConfigs#configs() configs} map. Nulls are not permitted
* @param entry The key and value entry
* @return {@code this} builder for use in a chained invocation
*/
public final Builder addConfig(Map.Entry entry) {
String k = entry.getKey();
RegistryAuth v = entry.getValue();
this.configs.put(
Objects.requireNonNull(k, "configs key"),
Objects.requireNonNull(v, v == null ? "configs value for key: " + k : null));
return this;
}
/**
* Sets or replaces all mappings from the specified map as entries for the {@link RegistryConfigs#configs() configs} map. Nulls are not permitted
* @param entries The entries that will be added to the configs map
* @return {@code this} builder for use in a chained invocation
*/
public final Builder configs(Map entries) {
this.configs.clear();
return putAllConfigs(entries);
}
/**
* Put all mappings from the specified map as entries to {@link RegistryConfigs#configs() configs} map. Nulls are not permitted
* @param entries The entries that will be added to the configs map
* @return {@code this} builder for use in a chained invocation
*/
public final Builder putAllConfigs(Map entries) {
for (Map.Entry e : entries.entrySet()) {
String k = e.getKey();
RegistryAuth v = e.getValue();
this.configs.put(
Objects.requireNonNull(k, "configs key"),
Objects.requireNonNull(v, v == null ? "configs value for key: " + k : null));
}
return this;
}
/**
* Builds a new {@link ImmutableRegistryConfigs ImmutableRegistryConfigs}.
* @return An immutable instance of RegistryConfigs
* @throws java.lang.IllegalStateException if any required attributes are missing
*/
public ImmutableRegistryConfigs build() {
return new ImmutableRegistryConfigs(createUnmodifiableMap(false, false, configs));
}
}
private static Map createUnmodifiableMap(boolean checkNulls, boolean skipNulls, Map map) {
switch (map.size()) {
case 0: return Collections.emptyMap();
case 1: {
Map.Entry e = map.entrySet().iterator().next();
K k = e.getKey();
V v = e.getValue();
if (checkNulls) {
Objects.requireNonNull(k, "key");
Objects.requireNonNull(v, v == null ? "value for key: " + k : null);
}
if (skipNulls && (k == null || v == null)) {
return Collections.emptyMap();
}
return Collections.singletonMap(k, v);
}
default: {
Map linkedMap = new LinkedHashMap<>(map.size() * 4 / 3 + 1);
if (skipNulls || checkNulls) {
for (Map.Entry e : map.entrySet()) {
K k = e.getKey();
V v = e.getValue();
if (skipNulls) {
if (k == null || v == null) continue;
} else if (checkNulls) {
Objects.requireNonNull(k, "key");
Objects.requireNonNull(v, v == null ? "value for key: " + k : null);
}
linkedMap.put(k, v);
}
} else {
linkedMap.putAll(map);
}
return Collections.unmodifiableMap(linkedMap);
}
}
}
}