package org.argeo.slc.core.execution;

import java.io.File;

import org.argeo.slc.execution.ExecutionContext;
import org.springframework.core.io.FileSystemResource;
import org.springframework.core.io.Resource;

public class FileExecutionResources implements ExecutionResources {
	private File baseDir;
	private ExecutionContext executionContext;

	public FileExecutionResources() {
		String osgiInstanceArea = System.getProperty("osgi.instance.area");
		if (osgiInstanceArea != null) {
			if (osgiInstanceArea.startsWith("file:"))
				osgiInstanceArea = osgiInstanceArea.substring("file:".length());
			baseDir = new File(osgiInstanceArea + File.separator
					+ "executionResources");
		}

		if (baseDir == null) {
			String tempDir = System.getProperty("java.io.tmpdir");
			baseDir = new File(tempDir + File.separator
					+ "slcExecutionResources");
		}
	}

	public Resource getWritableResource(String relativePath) {
		File file = getFile(relativePath);
		file.getParentFile().mkdirs();
		return new FileSystemResource(file);
	}

	public File getFile(String relativePath) {
		File executionDir = new File(baseDir.getPath() + File.separator
				+ executionContext.getUuid());
		if (!executionDir.exists())
			executionDir.mkdirs();
		return new File(executionDir.getPath() + File.separator + relativePath);
	}

	public void setBaseDir(File baseDir) {
		this.baseDir = baseDir;
	}

	public void setExecutionContext(ExecutionContext executionContext) {
		this.executionContext = executionContext;
	}

}