createServer.java

private String createServer(final String token, final CloudTemplate serverTemplate)
			throws OpenstackException {
	final String serverName = this.serverNamePrefix + System.currentTimeMillis();
	final String securityGroup = getCustomTemplateValue(
			serverTemplate, OPENSTACK_SECURITYGROUP, null, false);
	final String keyPairName = getCustomTemplateValue(
			serverTemplate, OPENSTACK_KEY_PAIR, null, false);

	// Start the machine!
	final String json =
			"{\"server\":{ \"name\":\"" + serverName + "\",\"imageRef\":\"" + serverTemplate.getImageId()
					+ "\",\"flavorRef\":\"" + serverTemplate.getHardwareId() + "\",\"key_name\":\"" + keyPairName
					+ "\",\"security_groups\":[{\"name\":\"" + securityGroup + "\"}]}}";

	String serverBootResponse = null;
	try {
		serverBootResponse = service.path(
				this.pathPrefix + "servers").header(
				"Content-Type", "application/json").header(
				"X-Auth-Token", token).accept(
				MediaType.APPLICATION_XML).post(
				String.class, json);
	} catch (final UniformInterfaceException e) {
		throw new OpenstackException(e);
	}

	try {
		// if we are here, the machine started!
		final Document doc = documentBuilder.parse(new InputSource(new StringReader(serverBootResponse)));

		final String status = xpath.evaluate(
				"/server/@status", doc);
		if (!status.startsWith("BUILD")) {
			throw new IllegalStateException("Expected server status of BUILD(*), got: " + status);
		}

		final String serverId = xpath.evaluate(
				"/server/@id", doc);
		return serverId;
	} catch (XPathExpressionException e) {
		throw new OpenstackException("Failed to parse XML Response from server. Response was: "
				+ serverBootResponse + ", Error was: " + e.getMessage(), e);
	} catch (SAXException e) {
		throw new OpenstackException("Failed to parse XML Response from server. Response was: "
				+ serverBootResponse + ", Error was: " + e.getMessage(), e);
	} catch (IOException e) {
		throw new OpenstackException("Failed to send request to server. Response was: " + serverBootResponse
				+ ", Error was: " + e.getMessage(), e);
	}
}