rd5 delta progress
This commit is contained in:
Arndt Brenschede
parent
c4f3e7dadf
commit
19a7555483
4 changed files with 468 additions and 46 deletions
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@ -366,4 +366,38 @@ public class MicroCache extends ByteDataWriter
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}
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}
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public void addDelta( MicroCache mc1, MicroCache mc2, boolean keepEmptyNodes )
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{
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int idx1 = 0;
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int idx2 = 0;
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while( idx1 < mc1.size || idx2 < mc2.size )
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{
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int id1 = idx1 < mc1.size ? mc1.faid[idx1] : Integer.MAX_VALUE;
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int id2 = idx2 < mc2.size ? mc2.faid[idx2] : Integer.MAX_VALUE;
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if ( id1 >= id2 ) // data from diff file wins
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{
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int start2 = idx2 > 0 ? mc2.fapos[idx2 - 1] : 0;
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int len2 = mc2.fapos[idx2++] - start2;
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if ( keepEmptyNodes || len2 > 0 )
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{
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write( mc2.ab, start2, len2 );
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fapos[size] = aboffset;
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faid[size++] = id2;
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}
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if ( id1 == id2 ) // // id exists in both caches
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{
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idx1++;
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}
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}
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else // use data from base file
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{
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int start1 = idx1 > 0 ? mc1.fapos[idx1 - 1] : 0;
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int len1 = mc1.fapos[idx1++] - start1;
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write( mc1.ab, start1, len1 );
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fapos[size] = aboffset;
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faid[size++] = id1;
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}
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}
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}
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}
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@ -266,6 +266,25 @@ public final class TagValueCoder
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return -1;
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if ( tvs1.frequency > tvs2.frequency )
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return 1;
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// to avoid ordering instability, decide on the data
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// if frequency is equal
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int l1 = tvs1.data == null ? 0 : tvs1.data.length;
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int l2 = tvs2.data == null ? 0 : tvs2.data.length;
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if ( l1 < l2 )
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return -1;
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if ( l1 > l2 )
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return 1;
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for( int i=0; i<l1; i++ )
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{
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byte b1 = tvs1.data[i];
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byte b2 = tvs2.data[i];
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if ( b1 < b2 )
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return -1;
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if ( b1 > b2 )
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return 1;
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}
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return 0;
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}
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}
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@ -5,83 +5,193 @@
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*/
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package btools.mapaccess;
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import java.io.BufferedInputStream;
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import java.io.BufferedOutputStream;
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import java.io.DataInputStream;
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import java.io.DataOutputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.util.Arrays;
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import btools.codec.DataBuffers;
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import btools.codec.MicroCache;
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import btools.codec.MicroCache2;
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import btools.codec.StatCoderContext;
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import btools.util.Crc32;
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final public class Rd5DiffTool
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{
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public static void main( String[] args ) throws Exception
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{
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diff2files( new File( args[0] ),new File( args[1] ) );
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if ( args[1].endsWith( ".rd5diff" ) )
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{
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if ( args[0].endsWith( ".rd5diff" ) )
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{
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addDeltas( new File( args[0] ),new File( args[1] ), new File( args[2] ) );
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}
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else
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{
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recoverFromDelta( new File( args[0] ),new File( args[1] ), new File( args[2] ) /*, new File( args[3] ) */ );
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}
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}
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else
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{
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diff2files( new File( args[0] ),new File( args[1] ), new File( args[2] ) );
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}
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}
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private static long[] readFileIndex( DataInputStream dis, DataOutputStream dos ) throws Exception
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{
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long[] fileIndex = new long[25];
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for( int i=0; i<25; i++ )
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{
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long lv = dis.readLong();
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fileIndex[i] = lv & 0xffffffffffffL;
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if ( dos != null )
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{
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dos.writeLong( lv );
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}
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}
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return fileIndex;
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}
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private static long getTileStart( long[] index, int tileIndex )
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{
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return tileIndex > 0 ? index[tileIndex - 1] : 200L;
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}
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private static long getTileEnd( long[] index, int tileIndex )
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{
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return index[tileIndex];
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}
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private static int[] readPosIndex( DataInputStream dis, DataOutputStream dos ) throws Exception
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{
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int[] posIndex = new int[1024];
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for( int i=0; i<1024; i++ )
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{
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int iv = dis.readInt();
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posIndex[i] = iv;
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if ( dos != null )
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{
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dos.writeInt( iv );
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}
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}
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return posIndex;
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}
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private static int getPosIdx( int[] posIdx, int idx )
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{
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return idx == -1 ? 4096 : posIdx[idx];
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}
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private static byte[] createMicroCache( int[] posIdx, int tileIdx, DataInputStream dis, boolean deltaMode ) throws Exception
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{
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if ( posIdx == null )
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{
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return null;
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}
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int size = getPosIdx( posIdx, tileIdx ) - getPosIdx( posIdx, tileIdx-1 );
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if ( size == 0 )
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{
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return null;
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}
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if ( deltaMode )
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{
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size = dis.readInt();
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}
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byte[] ab = new byte[size];
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dis.readFully( ab );
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return ab;
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}
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private static MicroCache createMicroCache( byte[] ab, DataBuffers dataBuffers ) throws Exception
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{
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if ( ab == null || ab.length == 0 )
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{
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return MicroCache.emptyCache();
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}
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StatCoderContext bc = new StatCoderContext( ab );
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return new MicroCache2( bc, dataBuffers, 0, 0, 32, null, null );
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}
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/**
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* Compute the delta between 2 RD5 files and
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* show statistics on the expected size of the delta file
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*/
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public static void diff2files( File f1, File f2 ) throws Exception
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public static void diff2files( File f1, File f2, File outFile ) throws Exception
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{
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byte[] abBuf1 = new byte[10 * 1024 * 1024];
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byte[] abBuf2 = new byte[10 * 1024 * 1024];
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int nodesTotal = 0;
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int nodesDiff = 0;
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int diffedTiles = 0;
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long bytesDiff = 0L;
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long diffedTileSize = 0L;
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PhysicalFile pf1 = null;
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PhysicalFile pf2 = null;
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DataInputStream dis1 = new DataInputStream( new BufferedInputStream( new FileInputStream( f1 ) ) );
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DataInputStream dis2 = new DataInputStream( new BufferedInputStream( new FileInputStream( f2 ) ) );
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DataOutputStream dos = new DataOutputStream( new BufferedOutputStream( new FileOutputStream( outFile ) ) );
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// copy header to outfile
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long[] fileIndex1 = readFileIndex( dis1, null );
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long[] fileIndex2 = readFileIndex( dis2, dos );
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try
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{
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DataBuffers dataBuffers = new DataBuffers();
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pf1 = new PhysicalFile( f1, dataBuffers, -1, -1 );
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pf2 = new PhysicalFile( f2, dataBuffers, -1, -1 );
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int div = pf1.divisor;
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for ( int lonDegree = 0; lonDegree < 5; lonDegree++ ) // does'nt really matter..
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for ( int subFileIdx = 0; subFileIdx < 25; subFileIdx++ )
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{
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for ( int latDegree = 0; latDegree < 5; latDegree++ ) // ..where on earth we are
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{
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OsmFile osmf1 = new OsmFile( pf1, lonDegree, latDegree, dataBuffers );
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OsmFile osmf2 = new OsmFile( pf2, lonDegree, latDegree, dataBuffers );
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for ( int lonIdx = 0; lonIdx < div; lonIdx++ )
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{
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for ( int latIdx = 0; latIdx < div; latIdx++ )
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{
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int lonIdxDiv = lonDegree * div + lonIdx;
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int latIdxDiv = latDegree * div + latIdx;
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boolean hasData1 = getTileStart( fileIndex1, subFileIdx ) < getTileEnd( fileIndex1, subFileIdx );
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boolean hasData2 = getTileStart( fileIndex2, subFileIdx ) < getTileEnd( fileIndex2, subFileIdx );
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int[] posIdx1 = hasData1 ? readPosIndex( dis1, null ) : null;
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int[] posIdx2 = hasData2 ? readPosIndex( dis2, dos ) : null;
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for ( int tileIdx = 0; tileIdx < 1024; tileIdx++ )
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{
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byte[] ab1 = createMicroCache( posIdx1, tileIdx, dis1, false );
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byte[] ab2 = createMicroCache( posIdx2, tileIdx, dis2, false );
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if ( ab2 == null )
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{
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continue; // empty target tile
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}
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MicroCache mc;
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if ( Arrays.equals( ab1, ab2 ) )
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{
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mc = MicroCache.emptyCache(); // empty diff
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}
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else // calc diff of the 2 tiles
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{
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MicroCache mc1 = createMicroCache( ab1, dataBuffers );
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MicroCache mc2 = createMicroCache( ab2, dataBuffers );
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mc = new MicroCache2( mc1.getSize() + mc2.getSize(), abBuf2, 0, 0, 32 );
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mc.calcDelta( mc1, mc2 );
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}
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MicroCache mc1 = osmf1.hasData() ?
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osmf1.createMicroCache( lonIdxDiv, latIdxDiv, dataBuffers, null, null, true, null )
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: MicroCache.emptyCache();
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MicroCache mc2 = osmf2.hasData() ?
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osmf2.createMicroCache( lonIdxDiv, latIdxDiv, dataBuffers, null, null, true, null )
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: MicroCache.emptyCache();
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MicroCache mc = new MicroCache2( mc1.getSize() + mc2.getSize(), abBuf2, lonIdxDiv, latIdxDiv, div );
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mc.calcDelta( mc1, mc2 );
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nodesTotal += mc2.getSize();
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if ( mc.getSize() > 0 )
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{
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int len = mc.encodeMicroCache( abBuf1 );
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if ( mc.getSize() == 0 )
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{
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dos.writeInt( 0 );
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}
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else
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{
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int len = mc.encodeMicroCache( abBuf1 );
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dos.writeInt( len );
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dos.write( abBuf1, 0, len );
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// do some consistemcy checks on the encoding
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byte[] bytes = new byte[len];
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System.arraycopy( abBuf1, 0, bytes, 0, len );
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bytesDiff += len;
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nodesDiff += mc.getSize();
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diffedTiles++;
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diffedTileSize += mc2.size();
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// cross-check the encoding: decode again
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MicroCache mcCheck = new MicroCache2( new StatCoderContext( bytes ), new DataBuffers( null ), lonIdxDiv, latIdxDiv, div, null, null );
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MicroCache mcCheck = new MicroCache2( new StatCoderContext( bytes ), new DataBuffers( null ), 0, 0, 32, null, null );
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// due to link-order ambiguity, for decoded we can only compare node-count and datasize
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if ( mc.size() != mcCheck.size() )
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@ -110,30 +220,289 @@ final public class Rd5DiffTool
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throw new IllegalArgumentException( "decoded data mismatch at i=" + i );
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}
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}
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}
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}
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}
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}
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}
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System.out.println( "nodesTotal=" + nodesTotal + " nodesDiff=" + nodesDiff + " bytesDiff=" + bytesDiff + " diffedTiles=" + diffedTiles + " diffedTileSize=" + diffedTileSize );
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// write any remaining data to the output file
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for(;;)
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{
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int len = dis2.read( abBuf1 );
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if (len < 0)
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{
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break;
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}
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dos.write( abBuf1, 0, len );
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}
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System.out.println( "nodesDiff=" + nodesDiff + " bytesDiff=" + bytesDiff + " diffedTiles=" + diffedTiles );
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}
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finally
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{
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if ( pf1 != null )
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if ( dis1 != null )
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{
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try
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{
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pf1.ra.close();
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dis1.close();
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}
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catch (Exception ee)
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{
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}
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}
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if ( pf2 != null )
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if ( dis2 != null )
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{
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try
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{
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pf2.ra.close();
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dis2.close();
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}
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catch (Exception ee)
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{
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}
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}
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if ( dos != null )
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{
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try
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{
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dos.close();
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}
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catch (Exception ee)
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{
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}
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}
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}
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}
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public static void recoverFromDelta( File f1, File f2, File outFile /* , File cmpFile */ ) throws Exception
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{
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byte[] abBuf1 = new byte[10 * 1024 * 1024];
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byte[] abBuf2 = new byte[10 * 1024 * 1024];
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DataInputStream dis1 = new DataInputStream( new BufferedInputStream( new FileInputStream( f1 ) ) );
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DataInputStream dis2 = new DataInputStream( new BufferedInputStream( new FileInputStream( f2 ) ) );
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// DataInputStream disCmp = new DataInputStream( new BufferedInputStream( new FileInputStream( cmpFile ) ) );
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DataOutputStream dos = new DataOutputStream( new BufferedOutputStream( new FileOutputStream( outFile ) ) );
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// copy header to outfile
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long[] fileIndex1 = readFileIndex( dis1, null );
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long[] fileIndex2 = readFileIndex( dis2, dos );
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// long[] fileIndexCmp = readFileIndex( disCmp, null );
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try
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{
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DataBuffers dataBuffers = new DataBuffers();
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for ( int subFileIdx = 0; subFileIdx < 25; subFileIdx++ )
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{
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boolean hasData1 = getTileStart( fileIndex1, subFileIdx ) < getTileEnd( fileIndex1, subFileIdx );
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boolean hasData2 = getTileStart( fileIndex2, subFileIdx ) < getTileEnd( fileIndex2, subFileIdx );
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// boolean hasDataCmp = getTileStart( fileIndexCmp, subFileIdx ) < getTileEnd( fileIndexCmp, subFileIdx );
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int[] posIdx1 = hasData1 ? readPosIndex( dis1, null ) : null;
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int[] posIdx2 = hasData2 ? readPosIndex( dis2, dos ) : null;
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// int[] posIdxCmp = hasDataCmp ? readPosIndex( disCmp, null ) : null;
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for ( int tileIdx = 0; tileIdx < 1024; tileIdx++ )
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{
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byte[] ab1 = createMicroCache( posIdx1, tileIdx, dis1, false );
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byte[] ab2 = createMicroCache( posIdx2, tileIdx, dis2, true );
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if ( ab2 == null )
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{
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continue; // no target tile expected
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}
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/* int targetSizeCmp = getPosIdx( posIdxCmp, tileIdx ) - getPosIdx( posIdxCmp, tileIdx-1 );
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if ( targetSizeCmp != targetSize ) throw new IllegalArgumentException( "target size mismatch: "+ targetSize + "," + targetSizeCmp );
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byte[] abCmp = new byte[targetSizeCmp];
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disCmp.readFully( abCmp );
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*/
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// no-delta shortcut: just copy base data
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if ( ab2.length == 0 )
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{
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if ( ab1 != null )
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{
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dos.write( ab1 );
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}
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continue;
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}
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// this is the real delta case (using decode->delta->encode )
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MicroCache mc1 = createMicroCache( ab1, dataBuffers );
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MicroCache mc2 = createMicroCache( ab2, dataBuffers );
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MicroCache mc = new MicroCache2( mc1.getSize() + mc2.getSize(), abBuf2, 0, 0, 32 );
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mc.addDelta( mc1, mc2, false );
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int len = mc.encodeMicroCache( abBuf1 );
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/* System.out.println( "comparing for subFileIdx=" + subFileIdx + " tileIdx=" + tileIdx );
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boolean isequal = true;
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for( int i=0; i<len;i++ )
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{
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if ( isequal && abCmp[i] != abBuf1[i] )
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{
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System.out.println( "data mismatch at i=" + i + " " + abCmp[i] + "!=" + abBuf1[i] + " targetSize=" + targetSize );
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isequal = false;
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MicroCache.debug = true;
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System.out.println( "**** decoding original cache ****" );
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createMicroCache( abCmp, dataBuffers );
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System.out.println( "**** decoding reconstructed cache ****" );
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createMicroCache( abBuf1, dataBuffers );
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System.exit(1);
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}
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}
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*/
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dos.write( abBuf1, 0, len );
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dos.writeInt( Crc32.crc( abBuf1, 0, len ) ^ 2 );
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}
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}
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// write any remaining data to the output file
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for(;;)
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{
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int len = dis2.read( abBuf1 );
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if (len < 0)
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{
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break;
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}
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dos.write( abBuf1, 0, len );
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}
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}
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finally
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{
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if ( dis1 != null )
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{
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try
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{
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dis1.close();
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}
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catch (Exception ee)
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{
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}
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}
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if ( dis2 != null )
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{
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try
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{
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dis2.close();
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}
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catch (Exception ee)
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{
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}
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}
|
||||
if ( dos != null )
|
||||
{
|
||||
try
|
||||
{
|
||||
dos.close();
|
||||
}
|
||||
catch (Exception ee)
|
||||
{
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public static void addDeltas( File f1, File f2, File outFile ) throws Exception
|
||||
{
|
||||
byte[] abBuf1 = new byte[10 * 1024 * 1024];
|
||||
byte[] abBuf2 = new byte[10 * 1024 * 1024];
|
||||
|
||||
DataInputStream dis1 = new DataInputStream( new BufferedInputStream( new FileInputStream( f1 ) ) );
|
||||
DataInputStream dis2 = new DataInputStream( new BufferedInputStream( new FileInputStream( f2 ) ) );
|
||||
DataOutputStream dos = new DataOutputStream( new BufferedOutputStream( new FileOutputStream( outFile ) ) );
|
||||
|
||||
// copy header to outfile
|
||||
long[] fileIndex1 = readFileIndex( dis1, null );
|
||||
long[] fileIndex2 = readFileIndex( dis2, dos );
|
||||
|
||||
try
|
||||
{
|
||||
DataBuffers dataBuffers = new DataBuffers();
|
||||
for ( int subFileIdx = 0; subFileIdx < 25; subFileIdx++ )
|
||||
{
|
||||
boolean hasData1 = getTileStart( fileIndex1, subFileIdx ) < getTileEnd( fileIndex1, subFileIdx );
|
||||
boolean hasData2 = getTileStart( fileIndex2, subFileIdx ) < getTileEnd( fileIndex2, subFileIdx );
|
||||
|
||||
int[] posIdx1 = hasData1 ? readPosIndex( dis1, null ) : null;
|
||||
int[] posIdx2 = hasData2 ? readPosIndex( dis2, dos ) : null;
|
||||
|
||||
for ( int tileIdx = 0; tileIdx < 1024; tileIdx++ )
|
||||
{
|
||||
byte[] ab1 = createMicroCache( posIdx1, tileIdx, dis1, true );
|
||||
byte[] ab2 = createMicroCache( posIdx2, tileIdx, dis2, true );
|
||||
if ( ab2 == null )
|
||||
{
|
||||
continue; // no target tile expected
|
||||
}
|
||||
|
||||
// no-delta shortcut: just copy base data
|
||||
if ( ab2.length == 0 )
|
||||
{
|
||||
if ( ab1 == null )
|
||||
{
|
||||
dos.writeInt( 0 );
|
||||
}
|
||||
else
|
||||
{
|
||||
dos.writeInt( ab1.length );
|
||||
dos.write( ab1 );
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
||||
// this is the real delta case (using decode->add->encode )
|
||||
MicroCache mc1 = createMicroCache( ab1, dataBuffers );
|
||||
MicroCache mc2 = createMicroCache( ab2, dataBuffers );
|
||||
|
||||
MicroCache mc = new MicroCache2( mc1.getSize() + mc2.getSize(), abBuf2, 0, 0, 32 );
|
||||
mc.addDelta( mc1, mc2, true );
|
||||
|
||||
int len = mc.encodeMicroCache( abBuf1 );
|
||||
|
||||
dos.writeInt( len+4 );
|
||||
dos.write( abBuf1, 0, len );
|
||||
dos.writeInt( Crc32.crc( abBuf1, 0, len ) ^ 2 );
|
||||
}
|
||||
}
|
||||
// write any remaining data to the output file
|
||||
for(;;)
|
||||
{
|
||||
int len = dis2.read( abBuf1 );
|
||||
if (len < 0)
|
||||
{
|
||||
break;
|
||||
}
|
||||
dos.write( abBuf1, 0, len );
|
||||
}
|
||||
}
|
||||
finally
|
||||
{
|
||||
if ( dis1 != null )
|
||||
{
|
||||
try
|
||||
{
|
||||
dis1.close();
|
||||
}
|
||||
catch (Exception ee)
|
||||
{
|
||||
}
|
||||
}
|
||||
if ( dis2 != null )
|
||||
{
|
||||
try
|
||||
{
|
||||
dis2.close();
|
||||
}
|
||||
catch (Exception ee)
|
||||
{
|
||||
}
|
||||
}
|
||||
if ( dos != null )
|
||||
{
|
||||
try
|
||||
{
|
||||
dos.close();
|
||||
}
|
||||
catch (Exception ee)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -503,7 +503,7 @@ public class SuspectManager extends Thread
|
|||
{
|
||||
bw.write( filter + " suspect list for " + country + "\n" );
|
||||
bw.write( "<br><a href=\"/brouter/suspects" + challenge + country + "/" + filter + "/watchlist\">see watchlist</a>\n" );
|
||||
bw.write( "<br><a href=\"/brouter/suspects\">back to country list</a><br><br>\n" );
|
||||
bw.write( "<br><a href=\"/brouter/suspects" + challenge + "\">back to country list</a><br><br>\n" );
|
||||
int maxprio = 0;
|
||||
{
|
||||
for( int isuspect = 0; isuspect<suspects.cnt; isuspect++ )
|
||||
|
|
|
|||
Loading…
Reference in a new issue