package net.osmand.binary;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.RandomAccessFile;
import net.osmand.PlatformUtil;
import net.osmand.binary.BinaryMapAddressReaderAdapter.AddressRegion;
import net.osmand.binary.BinaryMapAddressReaderAdapter.CitiesBlock;
import net.osmand.binary.BinaryMapIndexReader.MapIndex;
import net.osmand.binary.BinaryMapIndexReader.MapRoot;
import net.osmand.binary.BinaryMapPoiReaderAdapter.PoiRegion;
import net.osmand.binary.BinaryMapRouteReaderAdapter.RouteRegion;
import net.osmand.binary.BinaryMapRouteReaderAdapter.RouteSubregion;
import net.osmand.binary.BinaryMapTransportReaderAdapter.IndexStringTable;
import net.osmand.binary.BinaryMapTransportReaderAdapter.TransportIndex;
import net.osmand.binary.OsmandIndex.AddressPart;
import net.osmand.binary.OsmandIndex.CityBlock;
import net.osmand.binary.OsmandIndex.FileIndex;
import net.osmand.binary.OsmandIndex.MapLevel;
import net.osmand.binary.OsmandIndex.MapPart;
import net.osmand.binary.OsmandIndex.OsmAndStoredIndex;
import net.osmand.binary.OsmandIndex.PoiPart;
import net.osmand.binary.OsmandIndex.RoutingPart;
import net.osmand.binary.OsmandIndex.RoutingSubregion;
import net.osmand.binary.OsmandIndex.TransportPart;
import net.osmand.util.MapUtils;
import org.apache.commons.logging.Log;
public class CachedOsmandIndexes {
private OsmAndStoredIndex storedIndex;
private OsmAndStoredIndex.Builder storedIndexBuilder;
private Log log = PlatformUtil.getLog(CachedOsmandIndexes.class);
private boolean hasChanged = true;
public static final int VERSION = 2;
public void addToCache(BinaryMapIndexReader reader, File f) {
hasChanged = true;
if(storedIndexBuilder == null) {
storedIndexBuilder = OsmandIndex.OsmAndStoredIndex.newBuilder();
storedIndexBuilder.setVersion(VERSION);
storedIndexBuilder.setDateCreated(System.currentTimeMillis());
if(storedIndex != null) {
for(FileIndex ex : storedIndex.getFileIndexList()) {
storedIndexBuilder.addFileIndex(ex);
}
}
}
FileIndex.Builder fileIndex = OsmandIndex.FileIndex.newBuilder();
long d = reader.getDateCreated();
fileIndex.setDateModified(d== 0?f.lastModified() : d);
fileIndex.setSize(f.length());
fileIndex.setVersion(reader.getVersion());
fileIndex.setFileName(f.getName());
for(MapIndex index : reader.getMapIndexes()) {
MapPart.Builder map = OsmandIndex.MapPart.newBuilder();
map.setSize(index.getLength());
map.setOffset(index.getFilePointer());
if(index.getName() != null) {
map.setName(index.getName());
}
for(MapRoot mr : index.getRoots() ) {
MapLevel.Builder lev = OsmandIndex.MapLevel.newBuilder();
lev.setSize(mr.length);
lev.setOffset(mr.filePointer);
lev.setLeft(mr.left);
lev.setRight(mr.right);
lev.setTop(mr.top);
lev.setBottom(mr.bottom);
lev.setMinzoom(mr.minZoom);
lev.setMaxzoom(mr.maxZoom);
map.addLevels(lev);
}
fileIndex.addMapIndex(map);
}
for(AddressRegion index : reader.getAddressIndexes()) {
AddressPart.Builder addr = OsmandIndex.AddressPart.newBuilder();
addr.setSize(index.getLength());
addr.setOffset(index.getFilePointer());
if(index.getName() != null) {
addr.setName(index.getName());
}
if(index.getEnName() != null) {
addr.setNameEn(index.getEnName());
}
addr.setIndexNameOffset(index.getIndexNameOffset());
for(CitiesBlock mr : index.getCities() ) {
CityBlock.Builder cblock = OsmandIndex.CityBlock.newBuilder();
cblock.setSize(mr.length);
cblock.setOffset(mr.filePointer);
cblock.setType(mr.type);
addr.addCities(cblock);
}
for(String s : index.getAttributeTagsTable()) {
addr.addAdditionalTags(s);
}
fileIndex.addAddressIndex(addr);
}
for(PoiRegion index : reader.getPoiIndexes()) {
PoiPart.Builder poi = OsmandIndex.PoiPart.newBuilder();
poi.setSize(index.getLength());
poi.setOffset(index.getFilePointer());
if(index.getName() != null) {
poi.setName(index.getName());
}
poi.setLeft(index.left31);
poi.setRight(index.right31);
poi.setTop(index.top31);
poi.setBottom(index.bottom31);
fileIndex.addPoiIndex(poi.build());
}
for(TransportIndex index : reader.getTransportIndexes()) {
TransportPart.Builder transport = OsmandIndex.TransportPart.newBuilder();
transport.setSize(index.getLength());
transport.setOffset(index.getFilePointer());
if(index.getName() != null) {
transport.setName(index.getName());
}
transport.setLeft(index.getLeft());
transport.setRight(index.getRight());
transport.setTop(index.getTop());
transport.setBottom(index.getBottom());
transport.setStopsTableLength(index.stopsFileLength);
transport.setStopsTableOffset(index.stopsFileOffset);
transport.setStringTableLength(index.stringTable.length);
transport.setStringTableOffset(index.stringTable.fileOffset);
fileIndex.addTransportIndex(transport);
}
for(RouteRegion index : reader.getRoutingIndexes()) {
RoutingPart.Builder routing = OsmandIndex.RoutingPart.newBuilder();
routing.setSize(index.getLength());
routing.setOffset(index.getFilePointer());
if(index.getName() != null) {
routing.setName(index.getName());
}
for(RouteSubregion sub : index.getSubregions()) {
addRouteSubregion(routing, sub, false);
}
for(RouteSubregion sub : index.getBaseSubregions()) {
addRouteSubregion(routing, sub, true);
}
fileIndex.addRoutingIndex(routing);
}
storedIndexBuilder.addFileIndex(fileIndex);
}
private void addRouteSubregion(RoutingPart.Builder routing, RouteSubregion sub, boolean base) {
OsmandIndex.RoutingSubregion.Builder rpart = OsmandIndex.RoutingSubregion.newBuilder();
rpart.setSize(sub.length);
rpart.setOffset(sub.filePointer);
rpart.setLeft(sub.left);
rpart.setRight(sub.right);
rpart.setTop(sub.top);
rpart.setBasemap(base);
rpart.setBottom(sub.bottom);
rpart.setShifToData(sub.shiftToData);
routing.addSubregions(rpart);
}
public BinaryMapIndexReader getReader(File f) throws IOException {
RandomAccessFile mf = new RandomAccessFile(f.getPath(), "r");
FileIndex found = null;
if (storedIndex != null) {
for (int i = 0; i < storedIndex.getFileIndexCount(); i++) {
FileIndex fi = storedIndex.getFileIndex(i);
if (f.length() == fi.getSize() && f.getName().equals(fi.getFileName())) {
// f.lastModified() == fi.getDateModified()
found = fi;
break;
}
}
}
BinaryMapIndexReader reader = null;
if (found == null) {
long val = System.currentTimeMillis();
reader = new BinaryMapIndexReader(mf, f);
addToCache(reader, f);
if (log.isDebugEnabled()) {
log.debug("Initializing db " + f.getAbsolutePath() + " " + (System.currentTimeMillis() - val ) + "ms"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
} else {
reader = initFileIndex(found, mf, f);
}
return reader;
}
private BinaryMapIndexReader initFileIndex(FileIndex found, RandomAccessFile mf, File f) throws IOException {
BinaryMapIndexReader reader = new BinaryMapIndexReader(mf, f, false);
reader.version = found.getVersion();
reader.dateCreated = found.getDateModified();
for(MapPart index : found.getMapIndexList()) {
MapIndex mi = new MapIndex();
mi.length = (int) index.getSize();
mi.filePointer = (int) index.getOffset();
mi.name = index.getName();
for(MapLevel mr : index.getLevelsList()) {
MapRoot root = new MapRoot();
root.length = (int) mr.getSize();
root.filePointer = (int) mr.getOffset();
root.left = mr.getLeft();
root.right = mr.getRight();
root.top = mr.getTop();
root.bottom = mr.getBottom();
root.minZoom = mr.getMinzoom();
root.maxZoom = mr.getMaxzoom();
mi.roots.add(root);
}
reader.mapIndexes.add(mi);
reader.indexes.add(mi);
reader.basemap = reader.basemap || mi.isBaseMap();
}
for(AddressPart index : found.getAddressIndexList()) {
AddressRegion mi = new AddressRegion();
mi.length = (int) index.getSize();
mi.filePointer = (int) index.getOffset();
mi.name = index.getName();
mi.enName = index.getNameEn();
mi.indexNameOffset = index.getIndexNameOffset();
for(CityBlock mr : index.getCitiesList() ) {
CitiesBlock cblock = new CitiesBlock();
cblock.length = (int) mr.getSize();
cblock.filePointer = (int) mr.getOffset();
cblock.type = mr.getType();
mi.cities.add(cblock);
}
for(String s : index.getAdditionalTagsList()) {
mi.attributeTagsTable.add(s);
}
reader.addressIndexes.add(mi);
reader.indexes.add(mi);
}
for(PoiPart index : found.getPoiIndexList()) {
PoiRegion mi = new PoiRegion();
mi.length = (int) index.getSize();
mi.filePointer = (int) index.getOffset();
mi.name = index.getName();
mi.left31 = index.getLeft();
mi.right31 = index.getRight();
mi.top31 = index.getTop();
mi.bottom31 = index.getBottom();
reader.poiIndexes.add(mi);
reader.indexes.add(mi);
}
for(TransportPart index : found.getTransportIndexList()) {
TransportIndex mi = new TransportIndex();
mi.length = (int) index.getSize();
mi.filePointer = (int) index.getOffset();
mi.name = index.getName();
mi.left = index.getLeft();
mi.right =index.getRight();
mi.top = index.getTop();
mi.bottom = index.getBottom();
mi.stopsFileLength = index.getStopsTableLength();
mi.stopsFileOffset = index.getStopsTableOffset();
mi.stringTable = new IndexStringTable();
mi.stringTable.fileOffset = index.getStringTableOffset();
mi.stringTable.length = index.getStringTableLength();
reader.transportIndexes.add(mi);
reader.indexes.add(mi);
}
for(RoutingPart index : found.getRoutingIndexList()) {
RouteRegion mi = new RouteRegion();
mi.length = (int) index.getSize();
mi.filePointer = (int) index.getOffset();
mi.name = index.getName();
for(RoutingSubregion mr : index.getSubregionsList()) {
RouteSubregion sub = new RouteSubregion(mi);
sub.length = (int) mr.getSize();
sub.filePointer = (int) mr.getOffset();
sub.left = mr.getLeft();
sub.right = mr.getRight();
sub.top = mr.getTop();
sub.bottom = mr.getBottom();
sub.shiftToData = mr.getShifToData();
if(mr.getBasemap()) {
mi.basesubregions.add(sub);
} else {
mi.subregions.add(sub);
}
}
reader.routingIndexes.add(mi);
reader.indexes.add(mi);
}
return reader;
}
public void readFromFile(File f, int version) throws IOException {
long time = System.currentTimeMillis();
FileInputStream is = new FileInputStream(f);
try {
storedIndex = OsmandIndex.OsmAndStoredIndex.newBuilder().mergeFrom(is).build();
hasChanged = false;
if(storedIndex.getVersion() != version){
storedIndex = null;
}
} finally {
is.close();
}
log.info("Initialize cache " + (System.currentTimeMillis() - time));
}
public void writeToFile(File f) throws IOException {
if (hasChanged) {
FileOutputStream outputStream = new FileOutputStream(f);
try {
storedIndexBuilder.build().writeTo(outputStream);
} finally {
outputStream.close();
}
}
}
}