br.com.caelum.vraptor.observer.upload.DefaultUploadedFile.java Source code

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Here is the source code for br.com.caelum.vraptor.observer.upload.DefaultUploadedFile.java

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/***
 * Copyright (c) 2009 Caelum - www.caelum.com.br/opensource
 * All rights reserved.
 *
 * 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 br.com.caelum.vraptor.observer.upload;

import static java.nio.file.Files.copy;
import static java.util.Objects.requireNonNull;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.CopyOption;
import java.nio.file.Path;

import javax.enterprise.inject.Vetoed;

import org.apache.commons.io.IOUtils;

/**
 * Default implementation for {@link UploadedFile}.
 */
@Vetoed
public class DefaultUploadedFile implements UploadedFile {
    private static final String TARGET_CANNOT_BE_NULL = "Target can't be null";

    private final String contentType;
    private final String fileName;
    private final InputStream content;
    private final long size;

    public DefaultUploadedFile(InputStream content, String fileName, String contentType, long size) {
        this.content = content;
        this.fileName = fileName;
        this.contentType = contentType;
        this.size = size;
    }

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

    @Override
    public InputStream getFile() throws IOException {
        return content;
    }

    @Override
    public String getFileName() {
        return this.fileName;
    }

    @Override
    public long getSize() {
        return size;
    }

    @Override
    public void writeTo(File target) throws IOException {
        requireNonNull(target, TARGET_CANNOT_BE_NULL);
        writeTo(target.toPath());
    }

    @Override
    public void writeTo(Path target, CopyOption... options) throws IOException {
        requireNonNull(target, TARGET_CANNOT_BE_NULL);
        try (InputStream in = getFile()) {
            copy(in, target, options);
        }
    }

    @Override
    public void writeTo(OutputStream target) throws IOException {
        requireNonNull(target, TARGET_CANNOT_BE_NULL);
        IOUtils.copy(getFile(), target);
    }

    @Override
    public String toString() {
        return String.format("UploadedFile[name=%s]", getFileName());
    }
}