it now compiles
[nikiroo-utils.git] / src / be / nikiroo / utils / serial / Importer.java
index d21f1dd341c9085af11a08015a05c5fb04fc5c14..a017fabfd362ea3ad27f72e0a6305856db2e41a1 100644 (file)
@@ -1,11 +1,14 @@
 package be.nikiroo.utils.serial;
 
 import java.io.IOException;
+import java.io.InputStream;
 import java.lang.reflect.Field;
 import java.util.HashMap;
 import java.util.Map;
-import java.util.Scanner;
 
+import be.nikiroo.utils.IOUtils;
+import be.nikiroo.utils.NextableInputStream;
+import be.nikiroo.utils.NextableInputStreamStep;
 import be.nikiroo.utils.StringUtils;
 
 /**
@@ -26,6 +29,9 @@ public class Importer {
 
        private String currentFieldName;
 
+       /**
+        * Create a new {@link Importer}.
+        */
        public Importer() {
                map = new HashMap<String, Object>();
                map.put("NULL", null);
@@ -53,27 +59,44 @@ public class Importer {
         *             because it is not compatible with this code
         * @throws ClassNotFoundException
         *             if a class described in the serialised data cannot be found
+        * @throws IOException
+        *             if the content cannot be read (for instance, corrupt data)
+        * @throws NullPointerException
+        *             if the stream is empty
         */
-       public Importer read(String data) throws NoSuchFieldException,
-                       NoSuchMethodException, ClassNotFoundException {
+       public Importer read(InputStream in) throws NoSuchFieldException,
+                       NoSuchMethodException, ClassNotFoundException, IOException,
+                       NullPointerException {
+
+               NextableInputStream stream = new NextableInputStream(in,
+                               new NextableInputStreamStep('\n'));
 
                try {
-                       Scanner scan = new Scanner(data);
-                       scan.useDelimiter("\n");
-                       while (scan.hasNext()) {
-                               String line = scan.next();
-
-                               if (line.startsWith("ZIP:")) {
-                                       line = StringUtils.unzip64(line.substring("ZIP:".length()));
-                                       read(line);
+                       if (in == null || stream.eof()) {
+                               if (in == null) {
+                                       throw new NullPointerException("InputStream is null");
+                               }
+                               throw new NullPointerException("InputStream is empty");
+                       }
+
+                       while (stream.next()) {
+                               boolean zip = stream.startsWiths("ZIP:");
+                               boolean b64 = stream.startsWiths("B64:");
+
+                               if (zip || b64) {
+                                       InputStream decoded = StringUtils.unbase64(stream.open(),
+                                                       zip);
+                                       try {
+                                               read(decoded);
+                                       } finally {
+                                               decoded.close();
+                                       }
                                } else {
-                                       processLine(line);
+                                       processLine(stream);
                                }
                        }
-                       scan.close();
-               } catch (IOException e) {
-                       throw new NoSuchMethodException(
-                                       "Internal error when decoding ZIP content: input may be corrupt");
+               } finally {
+                       stream.close(false);
                }
 
                return this;
@@ -96,12 +119,15 @@ public class Importer {
         *             because it is not compatible with this code
         * @throws ClassNotFoundException
         *             if a class described in the serialised data cannot be found
+        * @throws IOException
+        *             if the content cannot be read (for instance, corrupt data)
         */
-       private boolean processLine(String line) throws NoSuchFieldException,
-                       NoSuchMethodException, ClassNotFoundException {
+       private boolean processLine(InputStream in) throws NoSuchFieldException,
+                       NoSuchMethodException, ClassNotFoundException, IOException {
+
                // Defer to latest child if any
                if (child != null) {
-                       if (child.processLine(line)) {
+                       if (child.processLine(in)) {
                                if (currentFieldName != null) {
                                        setField(currentFieldName, child.getValue());
                                        currentFieldName = null;
@@ -112,6 +138,9 @@ public class Importer {
                        return false;
                }
 
+               // TODO use the stream, Luke
+               String line = IOUtils.readSmallStream(in);
+
                if (line.equals("{")) { // START: new child if needed
                        if (link != null) {
                                child = new Importer(map);
@@ -143,7 +172,8 @@ public class Importer {
                        if (line.endsWith(":")) {
                                // field value is compound
                                currentFieldName = line.substring(0, line.length() - 1);
-                       } else if (line.startsWith(":") || !line.contains(":")) {
+                       } else if (line.startsWith(":") || !line.contains(":")
+                                       || line.startsWith("\"") || CustomSerializer.isCustom(line)) {
                                // not a field value but a direct value
                                me = SerialUtils.decode(line);
                        } else {