X-Git-Url: http://gitweb.fperrin.net/?a=blobdiff_plain;f=src%2Ftim%2Fprune%2Ffunction%2Fsrtm%2FSrtmSource.java;fp=src%2Ftim%2Fprune%2Ffunction%2Fsrtm%2FSrtmSource.java;h=6e49ad18383060541e8378c854df365db86c0144;hb=ee3eef52c05b36837d56bd4db582783da0ba0df4;hp=44ceccfab52a13a5ced20108ad539cafbf2c6fb2;hpb=842bb718cc05d82d37cf6464175baa9f05c80297;p=GpsPrune.git

diff --git a/src/tim/prune/function/srtm/SrtmSource.java b/src/tim/prune/function/srtm/SrtmSource.java
index 44ceccf..6e49ad1 100644
--- a/src/tim/prune/function/srtm/SrtmSource.java
+++ b/src/tim/prune/function/srtm/SrtmSource.java
@@ -3,11 +3,13 @@ package tim.prune.function.srtm;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
+import java.io.InputStream;
 import java.io.IOException;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipInputStream;
 
 public abstract class SrtmSource {
+	// methods implemented by each source
 	public abstract String getName();
 	public abstract boolean isReadyToUse();
 	public abstract boolean downloadTile(SrtmTile inTile)
@@ -15,6 +17,24 @@ public abstract class SrtmSource {
 	public abstract int getRowSize(SrtmTile inTile);
 	protected abstract String getSourceExtension();
 
+	protected boolean downloadToFile(InputStream inStream, File outputFile)
+		throws IOException
+	{
+		FileOutputStream outStream = new FileOutputStream(outputFile);
+
+		byte[] buffer = new byte[4096];
+		int read = 0;
+		while ((read = inStream.read(buffer)) != -1)
+		{
+			outStream.write(buffer, 0, read);
+		}
+		// Make sure streams are closed
+		try {inStream.close();} catch (Exception e) {}
+		try {outStream.close();} catch (Exception e) {}
+		return true;
+
+	}
+
 	protected int[] slurpTileHeigths(ZipInputStream inStream, int tileSize)
 		throws IOException
 	{