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io.rtr.alchemy.identities.AttributesMap Maven / Gradle / Ivy
package io.rtr.alchemy.identities;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
public class AttributesMap implements Map {
private static final AttributesMap EMPTY = new AttributesMap(Collections.emptyMap());
private final Map values;
private AttributesMap(final Map values) {
this.values = Map.copyOf(values);
}
public static Builder newBuilder() {
return new Builder();
}
public static AttributesMap empty() {
return EMPTY;
}
@SuppressWarnings("unchecked")
private T getValue(
final String name, final Class expectedClass, final Object defaultValue) {
final Object value = values.get(name);
if (value == null || value.getClass() != expectedClass) {
return (T) defaultValue;
}
return (T) value;
}
public String getString(final String name) {
return getValue(name, String.class, null);
}
public String getString(final String name, final String defaultValue) {
return getValue(name, String.class, defaultValue);
}
public Long getNumber(final String name) {
return getValue(name, Long.class, null);
}
public Long getNumber(final String name, final long defaultValue) {
return getValue(name, Long.class, defaultValue);
}
public Boolean getBoolean(final String name) {
return getValue(name, Boolean.class, null);
}
public Boolean getBoolean(final String name, final boolean defaultValue) {
return getValue(name, Boolean.class, defaultValue);
}
public Class getType(final String name) {
final Object value = values.get(name);
return value != null ? value.getClass() : null;
}
@Override
public int size() {
return values.size();
}
@Override
public boolean isEmpty() {
return values.isEmpty();
}
@Override
public boolean containsKey(final Object o) {
return values.containsKey(o);
}
@Override
public boolean containsValue(final Object o) {
return values.containsValue(o);
}
@Override
public Object get(final Object o) {
return values.get(o);
}
@Override
public Object put(final String s, final Object o) {
throw new UnsupportedOperationException();
}
@Override
public Object remove(final Object o) {
throw new UnsupportedOperationException();
}
@Override
public void putAll(final Map map) {
throw new UnsupportedOperationException();
}
@Override
public void clear() {
throw new UnsupportedOperationException();
}
@Override
public Set keySet() {
return values.keySet();
}
@Override
public Collection values() {
return values.values();
}
@Override
public Set> entrySet() {
return values.entrySet();
}
public AttributesMap filter(final Set keys) {
final Map builder = new HashMap<>();
for (final Entry entry : entrySet()) {
if (keys.contains(entry.getKey())) {
builder.put(entry.getKey(), entry.getValue());
}
}
return new AttributesMap(Map.copyOf(builder));
}
public static class Builder {
private final Map builder = new HashMap<>();
public Builder put(final String name, final String value) {
if (value != null) {
builder.put(name, value);
}
return this;
}
public Builder put(final String name, final byte value) {
builder.put(name, (long) value);
return this;
}
public Builder put(final String name, final short value) {
builder.put(name, (long) value);
return this;
}
public Builder put(final String name, final int value) {
builder.put(name, (long) value);
return this;
}
public Builder put(final String name, final long value) {
builder.put(name, value);
return this;
}
public Builder put(final String name, final boolean value) {
builder.put(name, value);
return this;
}
public Builder put(final Identity identity) {
if (identity != null) {
builder.putAll(identity.computeAttributes().values);
}
return this;
}
public AttributesMap build() {
return new AttributesMap(Map.copyOf(builder));
}
}
}
