ResourceCopyFactory.java

package fr.acxio.tools.agia.io;

/*
 * Copyright 2014 Acxio
 * 
 * Licensed 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.
 */

import java.io.File;
import java.util.Map;

import org.springframework.core.io.FileSystemResource;
import org.springframework.core.io.Resource;

/**
 * <p>
 * A simple ResourceFactory using a prefix, a suffix and a file extension to
 * build the descriptor from a {@code SOURCE} resource.
 * </p>
 * 
 * @author pcollardez
 *
 */
public class ResourceCopyFactory implements ResourceFactory {

    private Resource parentFolder;
    private String prefix;
    private String suffix;
    private String extension;

    public void setParentFolder(Resource sParentFolder) {
        parentFolder = sParentFolder;
    }

    public void setPrefix(String sPrefix) {
        prefix = sPrefix;
    }

    public void setSuffix(String sSuffix) {
        suffix = sSuffix;
    }

    public void setExtension(String sExtension) {
        extension = sExtension;
    }

    @Override
    public Resource getResource() throws ResourceCreationException {
        return null;
    }

    @Override
    public Resource getResource(Map<? extends Object, ? extends Object> sParameters) throws ResourceCreationException {
        Resource aResult = null;
        try {
            Resource aSourceResource = (Resource) sParameters.get(ResourceFactoryConstants.PARAM_SOURCE);
            String aFilename = aSourceResource.getFilename();
            String aFileNameWOExtension = aFilename.substring(0, aFilename.lastIndexOf('.'));
            String aExtension = extension;
            if (aExtension == null) {
                aExtension = aFilename.substring(aFilename.lastIndexOf('.'));
            }
            File aParentPath = (parentFolder != null) ? parentFolder.getFile() : null;
            if (aParentPath == null) {
                aParentPath = aSourceResource.getFile().getParentFile();
            }
            StringBuilder aNewFilename = new StringBuilder();
            if (prefix != null) {
                aNewFilename.append(prefix);
            }
            aNewFilename.append(aFileNameWOExtension);
            if (suffix != null) {
                aNewFilename.append(suffix);
            }
            aNewFilename.append(aExtension);
            File aNewFile = new File(aParentPath, aNewFilename.toString());
            aResult = new FileSystemResource(aNewFile);
        } catch (Exception e) {
            throw new ResourceCreationException(e);
        }
        return aResult;
    }

}