LibreOffice Module xmerge (master)  1
PdbDecoder.java
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18 
19 package org.openoffice.xmerge.converter.palm;
20 
21 import java.io.IOException;
22 import java.io.ByteArrayInputStream;
23 import java.io.DataInputStream;
24 
51 public final class PdbDecoder {
52 
67  public PalmDB parse(byte[] b) throws IOException {
68 
69  ByteArrayInputStream bais = new ByteArrayInputStream(b);
70  DataInputStream dis = new DataInputStream(bais);
71 
72  // read the PDB header
73  PdbHeader header = new PdbHeader();
74  header.read(dis);
75 
76  Record recArray[] = new Record[header.numRecords];
77  if (header.numRecords != 0) {
78 
79  // read in the record indices + offsets
80  int recOffset[] = new int[header.numRecords];
81  byte recAttrs[] = new byte[header.numRecords];
82 
83  for (int i = 0; i < header.numRecords; i++) {
84 
85  recOffset[i] = dis.readInt();
86 
87  // read in attributes (1 byte) + unique id (3 bytes)
88  // take away the unique id, store the attributes
89  int attr = dis.readInt();
90  recAttrs[i] = (byte) (attr >>> 24);
91  }
92 
93  // read the records
94  int lastIndex = header.numRecords - 1;
95 
96  for (int i = 0; i < lastIndex; i++) {
97 
98  //dis.seek(recOffset[i]);
99  dis.reset();
100  int nBytesToSkip = recOffset[i];
101  while (nBytesToSkip > 0) {
102  nBytesToSkip -= dis.skip(nBytesToSkip);
103  }
104  int len = recOffset[i+1] - recOffset[i];
105  byte[] bytes = new byte[len];
106  dis.readFully(bytes);
107  recArray[i] = new Record(bytes, recAttrs[i]);
108  }
109 
110  // last record
111  dis.reset();
112  int len = dis.available() - recOffset[lastIndex];
113  int nBytesToSkip = recOffset[lastIndex];
114  while (nBytesToSkip > 0) {
115  nBytesToSkip -= dis.skip(nBytesToSkip);
116  }
117  byte[] bytes = new byte[len];
118  dis.readFully(bytes);
119  recArray[lastIndex] = new Record(bytes, recAttrs[lastIndex]);
120  }
121 
122  // create PalmDB and return it
123  PalmDB pdb = new PalmDB(header.pdbName, header.creatorID,
124  header.typeID, header.version, header.attribute, recArray);
125 
126  return pdb;
127  }
128 }
std::vector< sal_uInt8 > bytes
PalmDB parse(byte[] b)
This method decodes a PDB file into a.
Definition: PdbDecoder.java:67
const sal_Int8 header[]
exports com.sun.star. java
int i
unsigned char byte
Provides functionality to decode a PDB formatted file into a.
Definition: PdbDecoder.java:51
This class contains data for a single Palm database for use during a conversion process.
Definition: PalmDB.java:59
Contains the raw bytes for a.
Definition: Record.java:35