X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=src%2Fbe%2Fnikiroo%2Futils%2FImage.java;h=f2b94991417ff922dba3a8c00713fe7202912657;hb=a6a73de36765b85947ac885529da82d3e7189269;hp=6edc1051ab7b910c0b47733407c99d804a08a8fe;hpb=82fcfcde9722e9e3b3eb713cf1f2bcb35fefaa7e;p=nikiroo-utils.git

diff --git a/src/be/nikiroo/utils/Image.java b/src/be/nikiroo/utils/Image.java
index 6edc105..f2b9499 100644
--- a/src/be/nikiroo/utils/Image.java
+++ b/src/be/nikiroo/utils/Image.java
@@ -7,6 +7,8 @@ import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 
+import be.nikiroo.utils.streams.MarkableFileInputStream;
+
 /**
  * This class represents an image data.
  * 
@@ -50,40 +52,49 @@ public class Image implements Closeable {
 	}
 
 	/**
-	 * Create a new {@link Image} from its Base64 representation.
+	 * Create a new {@link Image} from a stream.
 	 * 
-	 * @param base64
-	 *            the {@link Image} in Base64 format
+	 * @param in
+	 *            the stream
 	 * 
 	 * @throws IOException
 	 *             in case of I/O error
 	 */
-	public Image(String base64) throws IOException {
-		this(Base64.decode(base64));
+	public Image(InputStream in) throws IOException {
+		data = getTemporaryFile();
+		IOUtils.write(in, data);
 	}
 
 	/**
-	 * Create a new {@link Image} from a stream.
+	 * Generate an {@link InputStream} that you can {@link InputStream#reset()}
+	 * for this {@link Image}.
+	 * <p>
+	 * This {@link InputStream} will (always) be a new one, and <b>you</b> are
+	 * responsible for it.
+	 * <p>
+	 * Note: take care that the {@link InputStream} <b>must not</b> live past
+	 * the {@link Image} life time!
 	 * 
-	 * @param in
-	 *            the stream
+	 * @return the stream
 	 * 
 	 * @throws IOException
 	 *             in case of I/O error
 	 */
-	public Image(InputStream in) throws IOException {
-		data = getTemporaryFile();
-		IOUtils.write(in, data);
+	public InputStream newInputStream() throws IOException {
+		return new MarkableFileInputStream(new FileInputStream(data));
 	}
 
 	/**
 	 * <b>Read</b> the actual image data, as a byte array.
+	 * <p>
+	 * Note: if possible, prefer the {@link Image#newInputStream()} method, as
+	 * it can be more efficient.
 	 * 
 	 * @return the image data
 	 */
 	public byte[] getData() {
 		try {
-			FileInputStream in = new FileInputStream(data);
+			InputStream in = newInputStream();
 			try {
 				return IOUtils.toByteArray(in);
 			} finally {
@@ -94,16 +105,6 @@ public class Image implements Closeable {
 		}
 	}
 
-	/**
-	 * Convert the given {@link Image} object into a Base64 representation of
-	 * the same {@link Image} object.
-	 * 
-	 * @return the Base64 representation
-	 */
-	public String toBase64() {
-		return Base64.encodeBytes(getData());
-	}
-
 	/**
 	 * Closing the {@link Image} will delete the associated temporary file on
 	 * disk.