io.polaris.core.env.DelegateEnv Maven / Gradle / Ivy
package io.polaris.core.env;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
/**
* @author Qt
* @since 1.8, Apr 23, 2024
*/
public class DelegateEnv implements Env {
private final String name;
private Env delegate;
public DelegateEnv(String name, final Env delegate) {
this.name = name;
this.delegate = delegate;
}
@Override
public String name() {
return name;
}
public Env getDelegate() {
return delegate;
}
public void setDelegate(final Env delegate) {
this.delegate = delegate;
}
@Override
public void set(final String key, final String value) {
if (delegate != null) {
delegate.set(key, value);
}
}
@Override
public void remove(final String key) {
if (delegate != null) {
delegate.remove(key);
}
}
@Override
public String get(final String key, final String defaultValue) {
if (delegate != null) {
return delegate.get(key, defaultValue);
}
return defaultValue;
}
@Override
public String get(final String key) {
if (delegate != null) {
return delegate.get(key);
}
return null;
}
@Override
public Set keys() {
if (delegate != null) {
return delegate.keys();
}
return Collections.emptySet();
}
@Override
public Properties asProperties() {
if (delegate != null) {
return delegate.asProperties();
}
return new Properties();
}
@Override
public Map asMap() {
if (delegate != null) {
return delegate.asMap();
}
return new HashMap<>();
}
}