dubbo-spring-boot-autoconfigure/src/main/java/org/apache/dubbo/spring/boot/autoconfigure/DelegatingPropertyResolver.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.dubbo.spring.boot.autoconfigure;

import org.apache.dubbo.common.utils.Assert;
import org.springframework.core.env.PropertyResolver;
import org.springframework.lang.Nullable;

/**
 * Delegating {@link PropertyResolver}
 *
 * @since 2.7.1
 */
class DelegatingPropertyResolver implements PropertyResolver {

    private final PropertyResolver delegate;

    DelegatingPropertyResolver(PropertyResolver delegate) {
        Assert.notNull(delegate, "The delegate of PropertyResolver must not be null");
        this.delegate = delegate;
    }

    @Override
    public boolean containsProperty(String key) {
        return delegate.containsProperty(key);
    }

    @Override
    @Nullable
    public String getProperty(String key) {
        return delegate.getProperty(key);
    }

    @Override
    public String getProperty(String key, String defaultValue) {
        return delegate.getProperty(key, defaultValue);
    }

    @Override
    @Nullable
    public <T> T getProperty(String key, Class<T> targetType) {
        return delegate.getProperty(key, targetType);
    }

    @Override
    public <T> T getProperty(String key, Class<T> targetType, T defaultValue) {
        return delegate.getProperty(key, targetType, defaultValue);
    }

    @Override
    public String getRequiredProperty(String key) throws IllegalStateException {
        return delegate.getRequiredProperty(key);
    }

    @Override
    public <T> T getRequiredProperty(String key, Class<T> targetType) throws IllegalStateException {
        return delegate.getRequiredProperty(key, targetType);
    }

    @Override
    public String resolvePlaceholders(String text) {
        return delegate.resolvePlaceholders(text);
    }

    @Override
    public String resolveRequiredPlaceholders(String text) throws IllegalArgumentException {
        return delegate.resolveRequiredPlaceholders(text);
    }
}