com.mavict.plugin.ueditor.DefaultMultipartFile.java Source code

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Here is the source code for com.mavict.plugin.ueditor.DefaultMultipartFile.java

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/*
 * Copyright 2002-2012 the original author or authors.
 *
 * 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.
 */

package com.mavict.plugin.ueditor;

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.Serializable;

import org.apache.commons.io.FileUtils;

@SuppressWarnings({ "serial", "resource" })
public class DefaultMultipartFile implements MultipartFile, Serializable {

    private String name;
    private String originalName;
    private String contentType;
    private File dfosFile;

    public DefaultMultipartFile(String name, InputStream input, String originalName, String contentType)
            throws IOException {
        this.name = name;
        File dfosFile = new File(FileUtils.getTempDirectory(), PathFormat.random());
        FileUtils.copyInputStreamToFile(input, dfosFile);
        this.dfosFile = dfosFile;
        this.contentType = contentType;
        this.originalName = originalName;
    }

    public String getName() {
        return name;
    }

    public String getExtension() {
        String originalFilename = getOriginalFilename();
        int pos = originalFilename.lastIndexOf(".");
        if (pos == -1) {
            return "";
        }
        return originalFilename.substring(pos);
    }

    public String getOriginalFilename() {
        String filename = this.originalName;
        if (filename == null) {
            // Should never happen.
            return "";
        }
        // check for Unix-style path
        int pos = filename.lastIndexOf("/");
        if (pos == -1) {
            // check for Windows-style path
            pos = filename.lastIndexOf("\\");
        }
        if (pos != -1) {
            // any sort of path separator found
            return filename.substring(pos + 1);
        } else {
            // plain name
            return filename;
        }
    }

    public String getContentType() {
        return this.contentType;
    }

    public boolean isEmpty() {
        return (getSize() == 0);
    }

    public long getSize() {
        return fileExists() ? dfosFile.length() : 0;
    }

    public File getStoreLocation() {
        return this.dfosFile;
    }

    private boolean fileExists() {
        return this.dfosFile != null && dfosFile.exists();
    }

    public byte[] getBytes() throws IOException {
        return fileExists() ? FileUtils.readFileToByteArray(this.dfosFile) : new byte[0];
    }

    public InputStream getInputStream() throws IOException {
        return fileExists() ? new FileInputStream(this.dfosFile) : new ByteArrayInputStream(new byte[0]);
    }

    public String getStorageDescription() {
        return "at [" + dfosFile.getAbsolutePath() + "]";
    }

    public void transferTo(File dest) throws IOException, IllegalStateException {
        if (dest.exists() && !dest.delete()) {
            throw new IOException(
                    "Destination file [" + dest.getAbsolutePath() + "] already exists and could not be deleted");
        }
        try {
            FileUtils.copyFile(dfosFile, dest);
        } catch (IOException ex) {
            throw ex;
        } catch (Exception ex) {
            throw new IOException("Could not transfer to file: " + ex.getMessage());
        }
    }

    @Override
    public String toString() {
        return "DefaultMultipartFile [name=" + name + ", originalName=" + originalName + ", contentType="
                + contentType + ", dfosFile=" + dfosFile + "]";
    }

}