com.elasticgrid.storage.amazon.s3.S3Storable.java Source code

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Here is the source code for com.elasticgrid.storage.amazon.s3.S3Storable.java

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/**
 * Elastic Grid
 * Copyright (C) 2008-2010 Elastic Grid, LLC.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.elasticgrid.storage.amazon.s3;

import com.elasticgrid.storage.Storable;
import org.jets3t.service.S3Service;
import org.jets3t.service.S3ServiceException;
import org.jets3t.service.model.S3Object;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import java.io.InputStream;
import java.io.IOException;
import java.io.File;
import java.io.OutputStream;
import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.util.Date;

/**
 * {@link Storable} providing support for Amazon S3.
 *
 * @author Jerome Bernard
 */
public class S3Storable implements Storable {
    private final S3Service s3;
    private final S3Object object;

    public S3Storable(final S3Service s3, final S3Object object) {
        this.s3 = s3;
        this.object = object;
    }

    public String getName() {
        return object.getKey();
    }

    public Date getLastModifiedDate() {
        return object.getLastModifiedDate();
    }

    public InputStream asInputStream() throws IOException {
        try {
            return object.getDataInputStream();
        } catch (S3ServiceException e) {
            IOException ioe = new IOException("Can't get stream from storable");
            ioe.initCause(e);
            throw ioe;
        }
    }

    public File asFile() throws IOException {
        File f = File.createTempFile("elastic-grid-storable", getName());
        InputStream input = null;
        OutputStream output = null;
        try {
            input = asInputStream();
            output = new BufferedOutputStream(new FileOutputStream(f));
            IOUtils.copy(input, output);
        } finally {
            IOUtils.closeQuietly(input);
            IOUtils.closeQuietly(output);
        }
        return f;
    }
}