org.jlot.client.remote.support.ResourceZipper Maven / Gradle / Ivy

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package org.jlot.client.remote.support;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Set;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import javax.inject.Inject;

import org.jlot.client.configuration.ProjectConfiguration;
import org.springframework.stereotype.Component;

@Component
public class ResourceZipper
{
	@Inject
	private ProjectConfiguration	projectConfiguration;

	public File zip ( Set filenames )
	{
		try
		{
			File tempFile = File.createTempFile("jlot", ".zip");
			FileOutputStream fos = new FileOutputStream(tempFile);
			ZipOutputStream zos = new ZipOutputStream(fos);

			for (String filename : filenames)
			{
				ZipEntry ze = new ZipEntry(filename);
				zos.putNextEntry(ze);

				FileInputStream in = new FileInputStream(projectConfiguration.getBasedir() + filename);
				byte[] data = new byte[2048];
				int b = -1;
				while ( ( b = in.read(data) ) != -1)
				{
					zos.write(data, 0, b);
				}
				in.close();
				zos.closeEntry();
			}
			zos.close();
			return tempFile;
		}
		catch (IOException e)
		{
			throw new IllegalStateException("cant build zip file", e);
		}
	}
}