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Extend ReadSizes to get sizes from server index

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Call "java ReadSizes.java https://brouter.de/brouter/segments4/" to
get an updated list of segment sizes which can be inserted into
BInstallerSizes.java
This commit is contained in:
Manuel Fuhr 2021-10-17 09:28:44 +02:00
parent f5a415bd68
commit 555fa98914
1 changed files with 44 additions and 1 deletions
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43
misc/utils/ReadSizes.java
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@ -1,4 +1,5 @@
import java.io.*;
import java.net.*;
public class ReadSizes {
private static int[] tileSizes = new int[72 * 36];
@ -40,9 +41,51 @@ public class ReadSizes {
}
}
// Extract segment information from directory listing on https://brouter.de/brouter/segments4/
private static void scanTilesIndex(String tilesUrl) {
try {
URL url = new URL(tilesUrl);
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestMethod("GET");
BufferedReader in = new BufferedReader(
new InputStreamReader(con.getInputStream()));
String inputLine;
while ((inputLine = in.readLine()) != null) {
parseAndUpdateTileSize(inputLine);
}
in.close();
} catch (MalformedURLException e) {
System.out.println("Invalid URL");
} catch (ProtocolException e) {
System.out.println("Unable to download segment index");
} catch (IOException e) {
System.out.println("Unable to download segment index");
}
}
// Extract filename and size from each line in directory listing
// Example (stripped multiple spaces): "<a href="E0_N10.rd5">E0_N10.rd5</a> 17-Oct-2021 01:03 9648604"
private static void parseAndUpdateTileSize(String indexLine) {
String suffix = ".rd5";
if (!indexLine.contains(suffix)) {
return;
}
String fileName = indexLine.substring(indexLine.indexOf('"') + 1, indexLine.lastIndexOf('"'));
int fileSize = Integer.parseInt(indexLine.substring(indexLine.lastIndexOf(" ") + 1));
String basename = fileName.substring(0, fileName.length() - suffix.length());
int tidx = tileForBaseName(basename);
tileSizes[tidx] = fileSize;
}
public static void main(String[] args) {
if (args[0].startsWith("http")) {
scanTilesIndex(args[0]);
} else {
scanExistingFiles(new File(args[0]));
}
StringBuilder sb = new StringBuilder();
for (int tidx = 0; tidx < tileSizes.length; tidx++) {
if ((tidx % 12) == 0) sb.append("\n ");