001/* 002 * Copyright 2002-2012 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.beans.factory.parsing; 018 019import org.springframework.core.io.Resource; 020import org.springframework.lang.Nullable; 021 022/** 023 * Simple {@link SourceExtractor} implementation that just passes 024 * the candidate source metadata object through for attachment. 025 * 026 * <p>Using this implementation means that tools will get raw access to the 027 * underlying configuration source metadata provided by the tool. 028 * 029 * <p>This implementation <strong>should not</strong> be used in a production 030 * application since it is likely to keep too much metadata in memory 031 * (unnecessarily). 032 * 033 * @author Rob Harrop 034 * @since 2.0 035 */ 036public class PassThroughSourceExtractor implements SourceExtractor { 037 038 /** 039 * Simply returns the supplied {@code sourceCandidate} as-is. 040 * @param sourceCandidate the source metadata 041 * @return the supplied {@code sourceCandidate} 042 */ 043 @Override 044 public Object extractSource(Object sourceCandidate, @Nullable Resource definingResource) { 045 return sourceCandidate; 046 } 047 048}