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make tile file cache work, still not enabled

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This commit is contained in:
Hannes Janetzek 2012-09-08 01:34:33 +02:00
parent 7b8a959a21
commit 026a0674cd
1 changed files with 71 additions and 57 deletions
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124
src/org/mapsforge/database/pbmap/MapDatabase.java
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@ -95,22 +95,6 @@ public class MapDatabase implements IMapDatabase {
// private static final String URL = "http://city.informatik.uni-bremen.de/tiles/tiles.py///test/%d/%d/%d.osmtile";
// private static final String URL = "http://city.informatik.uni-bremen.de/osmstache/gis2/%d/%d/%d.osmtile";
private static final int MAX_TAGS_CACHE = 100;
private static Map<String, Tag> tagHash = Collections
.synchronizedMap(new LinkedHashMap<String, Tag>(
MAX_TAGS_CACHE, 0.75f, true) {
private static final long serialVersionUID = 1L;
@Override
protected boolean removeEldestEntry(Entry<String, Tag> e) {
if (size() < MAX_TAGS_CACHE)
return false;
return true;
}
});
private final static float REF_TILE_SIZE = 4096.0f;
private int MAX_TILE_TAGS = 100;
@ -128,16 +112,35 @@ public class MapDatabase implements IMapDatabase {
private long mContentLenth;
private InputStream mInputStream;
private static final int MAX_TAGS_CACHE = 100;
private static Map<String, Tag> tagHash = Collections
.synchronizedMap(new LinkedHashMap<String, Tag>(
MAX_TAGS_CACHE, 0.75f, true) {
private static final long serialVersionUID = 1L;
@Override
protected boolean removeEldestEntry(Entry<String, Tag> e) {
if (size() < MAX_TAGS_CACHE)
return false;
return true;
}
});
@Override
public QueryResult executeQuery(Tile tile, IMapDatabaseCallback mapDatabaseCallback) {
QueryResult result = QueryResult.SUCCESS;
mCacheFile = null;
mTile = tile;
mMapGenerator = mapDatabaseCallback;
mCurTagCnt = 0;
// scale coordinates to tile size
mScaleFactor = REF_TILE_SIZE / Tile.TILE_SIZE;
File f = null;
mBufferSize = 0;
@ -150,28 +153,8 @@ public class MapDatabase implements IMapDatabase {
Integer.valueOf(tile.tileX),
Integer.valueOf(tile.tileY)));
if (f.exists() && f.length() > 0) {
FileInputStream in;
Log.d(TAG, "using cache: " + tile);
try {
in = new FileInputStream(f);
mContentLenth = f.length();
mInputStream = in;
decode();
in.close();
if (cacheRead(tile, f))
return QueryResult.SUCCESS;
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (Exception ex) {
ex.printStackTrace();
}
}
f.delete();
}
String url = null;
@ -236,9 +219,8 @@ public class MapDatabase implements IMapDatabase {
entity.consumeContent();
}
} else {
HttpURLConnection urlConn = (HttpURLConnection) new URL(url)
.openConnection();
HttpURLConnection urlConn =
(HttpURLConnection) new URL(url).openConnection();
InputStream in = urlConn.getInputStream();
try {
@ -272,7 +254,7 @@ public class MapDatabase implements IMapDatabase {
result = QueryResult.FAILED;
}
cacheFinish(result == QueryResult.SUCCESS, f);
cacheFinish(result == QueryResult.SUCCESS, f, tile);
return result;
}
@ -458,6 +440,7 @@ public class MapDatabase implements IMapDatabase {
curTags[mCurTagCnt++] = new Tag(Tag.TAG_KEY_NAME, "...");
return false;
}
Tag tag = tagHash.get(tagString);
if (tag == null) {
@ -970,7 +953,8 @@ public class MapDatabase implements IMapDatabase {
private int mMaxReq = 0;
private Socket mSocket;
private OutputStream mCmdBuffer;
private OutputStream mCommandStream;
private InputStream mResponseStream;
private long mLastRequest = 0;
private SocketAddress mSockAddr;
@ -992,7 +976,7 @@ public class MapDatabase implements IMapDatabase {
// "Connection: Keep-Alive\n\n";
int lwHttpReadHeader() throws IOException {
InputStream is = mInputStream;
InputStream is = mResponseStream;
byte[] buf = mReadBuffer;
@ -1067,6 +1051,8 @@ public class MapDatabase implements IMapDatabase {
// buffer fill
mBufferSize = read;
mInputStream = mResponseStream;
return resp_len;
}
@ -1095,10 +1081,12 @@ public class MapDatabase implements IMapDatabase {
// Log.d(TAG, "create connection");
} else {
// should not be needed
int avail = mInputStream.available();
int avail = mResponseStream.available();
if (avail > 0) {
Log.d(TAG, "Consume left-over bytes: " + avail);
mInputStream.read(mReadBuffer, 0, avail);
mResponseStream.read(mReadBuffer, 0, avail);
}
}
@ -1130,8 +1118,8 @@ public class MapDatabase implements IMapDatabase {
// Integer.valueOf(tile.tileX), Integer.valueOf(tile.tileY)).getBytes();
try {
mCmdBuffer.write(request, 0, len);
mCmdBuffer.flush();
mCommandStream.write(request, 0, len);
mCommandStream.flush();
return true;
} catch (IOException e) {
Log.d(TAG, "retry - recreate connection");
@ -1139,8 +1127,8 @@ public class MapDatabase implements IMapDatabase {
lwHttpConnect();
mCmdBuffer.write(request, 0, len);
mCmdBuffer.flush();
mCommandStream.write(request, 0, len);
mCommandStream.flush();
return true;
}
@ -1157,16 +1145,40 @@ public class MapDatabase implements IMapDatabase {
mSocket.connect(mSockAddr, 30000);
mSocket.setTcpNoDelay(true);
// mCmdBuffer = new PrintStream(mSocket.getOutputStream());
mCmdBuffer = new BufferedOutputStream(mSocket.getOutputStream());
mInputStream = mSocket.getInputStream();
mCommandStream = new BufferedOutputStream(mSocket.getOutputStream());
mResponseStream = mSocket.getInputStream();
return true;
}
// //////////////////////////// Tile cache ////////////////////////////////////
private boolean cacheRead() {
private boolean cacheRead(Tile tile, File f) {
if (f.exists() && f.length() > 0) {
FileInputStream in;
try {
in = new FileInputStream(f);
mContentLenth = f.length();
Log.d(TAG, tile + " using cache: " + mContentLenth);
mInputStream = in;
decode();
in.close();
return true;
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (Exception ex) {
ex.printStackTrace();
}
f.delete();
return false;
}
return false;
}
private boolean cacheBegin(Tile tile, File f) {
@ -1179,6 +1191,7 @@ public class MapDatabase implements IMapDatabase {
try {
mCacheFile.write(mReadBuffer, mBufferPos,
mBufferSize - mBufferPos);
} catch (IOException e) {
e.printStackTrace();
mCacheFile = null;
@ -1194,12 +1207,13 @@ public class MapDatabase implements IMapDatabase {
return true;
}
private void cacheFinish(boolean success, File file) {
private void cacheFinish(boolean success, File file, Tile tile) {
if (USE_CACHE) {
if (success) {
try {
mCacheFile.flush();
mCacheFile.close();
Log.d(TAG, tile + " cache written " + file.length());
} catch (IOException e) {
e.printStackTrace();
}