Hi Gerd
Trying to use display/src/test/ZipFile.java to reconstitute a tile .img
from the constituents in a .gmap directory tree or extracted from a
gmapsupp.img so I could run other display diagnostics I found it was
broken, probably due to blocksize optimisation project. I attach a
patch that gets it working again and has some comments about how it
might be used.
Ticker
Index: src/test/ZipFile.java
===================================================================
--- src/test/ZipFile.java (revision 553)
+++ src/test/ZipFile.java (working copy)
@@ -17,11 +17,15 @@
package test;
import uk.me.parabola.imgfmt.FileSystemParam;
+import uk.me.parabola.imgfmt.Sized;
import uk.me.parabola.imgfmt.fs.FileSystem;
import uk.me.parabola.imgfmt.fs.ImgChannel;
import uk.me.parabola.imgfmt.sys.FileImgChannel;
+import uk.me.parabola.imgfmt.sys.FileLink;
import uk.me.parabola.imgfmt.sys.ImgFS;
+import uk.me.parabola.imgfmt.Utils;
+import java.io.Closeable;
import java.io.File;
import java.io.IOException;
import java.nio.ByteBuffer;
@@ -31,6 +35,17 @@
/**
* Combines several files into one .img file.
* Kind of the opposite of ExtractFile.
+ *
+ * It can be used to reconstitute a tile .img file from the .LBL/.TRE/.RGN/.NET/.NOD etc files
+ * so that other display diagnostics can be run.
+ * eg, starting with just gmapsupp.img, extract all the components:
+ * $ doDisplay test.ExtractFile gmapsupp.img
+ * or, from a --gmapi directory, the components are in $family-name.gmap/Product1/${tilename}
+ * then, for either:
+ * $ doDisplay test.ZipFile ${tilename}.img ${tilename}.*
+ * now you can the various checks and displays in the tile, eg:
+ * $ doDisplay test.check.NodCheck ${tilename}.img
+ *
* @author Steve Ratcliffe
*/
public class ZipFile {
@@ -57,19 +72,51 @@
for (String name : inlist) {
System.out.println("file " + name);
File f = new File(name);
- try (FileImgChannel fin = new FileImgChannel(name, "r");
- ImgChannel fout = fs.create(f.getName().toUpperCase()))
- {
- ByteBuffer buf = ByteBuffer.allocate(64*1024);
- while (fin.read(buf) > 0) {
- buf.flip();
- fout.write(buf);
- buf.compact();
- }
- }
+ FileCopier fc = new FileCopier(name);
+ ImgChannel fout = fs.create(f.getName().toUpperCase());
+ ((FileLink)fout).link(fc, fc.file(fout));
}
- fs.sync();
- fs.close();
+ Utils.closeFile(fs);
}
}
+
+/**
+ * Copies file to composite .img.
+ *
+ * based on similar in mkgmap/builders/GmapsuppBuilder.java
+ */
+class FileCopier implements Sized {
+ private final String filename;
+ private long fileSize;
+
+ public FileCopier(String filename) {
+ this.filename = filename;
+ File f = new File(filename);
+ fileSize = f.length();
+ }
+
+ Closeable file(ImgChannel fout) {
+ return () -> sync(fout);
+ }
+
+ public void sync(ImgChannel fout) throws IOException {
+ try (ImgChannel fin = new FileImgChannel(filename, "r")) {
+ copyFile(fin, fout);
+ }
+ }
+
+ private static void copyFile(ImgChannel fin, ImgChannel fout) throws IOException {
+ ByteBuffer buf = ByteBuffer.allocate(1024);
+ while (fin.read(buf) > 0) {
+ buf.flip();
+ fout.write(buf);
+ buf.compact();
+ }
+ }
+
+ public long getSize() {
+ return fileSize;
+ }
+
+}
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