labs/cdmi/src/main/java/org/jclouds/snia/cdmi/v1/options/CreateDataObjectOptions.java

package org.jclouds.snia.cdmi.v1.options;

import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.File;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.IOException;
import java.util.Map;
import java.util.Map.Entry;

import org.jclouds.http.options.BaseHttpRequestOptions;
import com.google.common.base.Charsets;
import java.nio.charset.Charset;
import com.google.gson.JsonObject;
import com.google.common.io.CharStreams;
import com.google.common.io.Files;

/**
 * CreateDataObjectOptions options supported in the REST API for the CREATE CDMI
 * Data Object operation. <h2>
 * 
 * @author Kenneth Nagin
 */
public class CreateDataObjectOptions extends BaseHttpRequestOptions {
	private JsonObject jsonObjectBody = new JsonObject();

	public CreateDataObjectOptions() {
		jsonObjectBody.addProperty("value", new String());
	}

	/**
	 * Create CDMI data object with metadata
	 * 
	 * @param metadata
	 * @return this
	 */
	public CreateDataObjectOptions metadata(Map<String, String> metadata) {
		JsonObject jsonObjectMetadata = new JsonObject();
		if (metadata != null) {
			for (Entry<String, String> entry : metadata.entrySet()) {
				jsonObjectMetadata
						.addProperty(entry.getKey(), entry.getValue());
			}
		}
		jsonObjectBody.add("metadata", jsonObjectMetadata);
		this.payload = jsonObjectBody.toString();
		return this;
	}

	/**
	 * Create CDMI data object with mimetype
	 * 
	 * @param mimetype
	 * @return
	 */
	public CreateDataObjectOptions mimetype(String mimetype) {
		jsonObjectBody.addProperty("mimetype", mimetype);
		this.payload = jsonObjectBody.toString();
		return this;
	}

	/**
	 * Create CDMI data object with value equal to empty string
	 * 
	 * @return
	 */
	public CreateDataObjectOptions value() {
		this.payload = jsonObjectBody.toString();
		return this;
	}

	/**
	 * Create CDMI data object with String value
	 * 
	 * @param value
	 *            String value
	 * @return
	 */
	public CreateDataObjectOptions value(String value) {
		jsonObjectBody.addProperty("value", (value == null) ? new String()
				: value);
		this.payload = jsonObjectBody.toString();
		return this;
	}

	/**
	 * Create CDMI data object with byte array value
	 * 
	 * @param value
	 *            byte array value byte array is converted to a String value
	 * @return
	 */
	public CreateDataObjectOptions value(byte[] value) throws IOException {
		jsonObjectBody.addProperty("value",
				(value == null) ? new String() : new DataInputStream(
						new ByteArrayInputStream(value)).readUTF());
		this.payload = jsonObjectBody.toString();
		return this;
	}

	/**
	 * Create CDMI data object with file value
	 * 
	 * @param value
	 *            File File is converted to a String value with charset UTF_8
	 * @return
	 */
	public CreateDataObjectOptions value(File value) throws IOException {
		jsonObjectBody.addProperty("value", (value == null) ? new String()
				: Files.toString(value, Charsets.UTF_8));
		this.payload = jsonObjectBody.toString();
		return this;
	}

	/**
	 * Create CDMI data object with file value
	 * 
	 * @param value
	 *            File
	 * @param charset
	 *            character set of file File is converted to a String value
	 * @return
	 */
	public CreateDataObjectOptions value(File value, Charset charset)
			throws IOException {
		jsonObjectBody.addProperty("value", (value == null) ? new String()
				: Files.toString(value, charset));
		this.payload = jsonObjectBody.toString();
		return this;
	}

	/**
	 * Create CDMI data object with InputStream value
	 * 
	 * @param value
	 *            InputSteam InputSteam is converted to a String value with
	 *            charset UTF_8
	 * @return
	 */
	public CreateDataObjectOptions value(InputStream value) throws IOException {
		jsonObjectBody
				.addProperty(
						"value",
						(value == null) ? new String() : CharStreams
								.toString(new InputStreamReader(value,
										Charsets.UTF_8)));
		this.payload = jsonObjectBody.toString();
		return this;
	}

	/**
	 * Create CDMI data object with InputStream value
	 * 
	 * @param value
	 *            InputSteam
	 * @param charset
	 *            character set of input stream InputSteam is converted to a
	 *            String value with charset UTF_8
	 * @return
	 */
	public CreateDataObjectOptions value(InputStream value, Charset charset)
			throws IOException {
		jsonObjectBody.addProperty("value", (value == null) ? new String()
				: CharStreams.toString(new InputStreamReader(value, charset)));
		this.payload = jsonObjectBody.toString();
		return this;
	}

	public static class Builder {
		public static CreateDataObjectOptions metadata(
				Map<String, String> metadata) {
			CreateDataObjectOptions options = new CreateDataObjectOptions();
			return (CreateDataObjectOptions) options.metadata(metadata);
		}

		public static CreateDataObjectOptions mimetype(String mimetype) {
			CreateDataObjectOptions options = new CreateDataObjectOptions();
			return (CreateDataObjectOptions) options.mimetype(mimetype);
		}

		public static CreateDataObjectOptions value() {
			CreateDataObjectOptions options = new CreateDataObjectOptions();
			return (CreateDataObjectOptions) options.value();
		}

		public static CreateDataObjectOptions value(String value) {
			CreateDataObjectOptions options = new CreateDataObjectOptions();
			return (CreateDataObjectOptions) options.value(value);
		}

		public static CreateDataObjectOptions value(byte[] value)
				throws IOException {
			CreateDataObjectOptions options = new CreateDataObjectOptions();
			return (CreateDataObjectOptions) options.value(value);
		}

		public static CreateDataObjectOptions value(File value)
				throws IOException {
			CreateDataObjectOptions options = new CreateDataObjectOptions();
			return (CreateDataObjectOptions) options.value(value);
		}

		public static CreateDataObjectOptions value(File value, Charset charset)
				throws IOException {
			CreateDataObjectOptions options = new CreateDataObjectOptions();
			return (CreateDataObjectOptions) options.value(value, charset);
		}

		public static CreateDataObjectOptions value(InputStream value)
				throws IOException {
			CreateDataObjectOptions options = new CreateDataObjectOptions();
			return (CreateDataObjectOptions) options.value(value);
		}

		public static CreateDataObjectOptions value(InputStream value,
				Charset charset) throws IOException {
			CreateDataObjectOptions options = new CreateDataObjectOptions();
			return (CreateDataObjectOptions) options.value(value, charset);
		}

	}
}