001/* 002 * Copyright 2002-2014 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.context.support; 018 019import org.springframework.context.EmbeddedValueResolverAware; 020import org.springframework.util.StringValueResolver; 021 022/** 023 * Convenient base class for components with a need for embedded value resolution 024 * (i.e. {@link org.springframework.context.EmbeddedValueResolverAware} consumers). 025 * 026 * @author Juergen Hoeller 027 * @since 4.1 028 */ 029public class EmbeddedValueResolutionSupport implements EmbeddedValueResolverAware { 030 031 private StringValueResolver embeddedValueResolver; 032 033 034 @Override 035 public void setEmbeddedValueResolver(StringValueResolver resolver) { 036 this.embeddedValueResolver = resolver; 037 } 038 039 /** 040 * Resolve the given embedded value through this instance's {@link StringValueResolver}. 041 * @param value the value to resolve 042 * @return the resolved value, or always the original value if no resolver is available 043 * @see #setEmbeddedValueResolver 044 */ 045 protected String resolveEmbeddedValue(String value) { 046 return (this.embeddedValueResolver != null ? this.embeddedValueResolver.resolveStringValue(value) : value); 047 } 048 049 050}