private void loadNextBlock() {
while (true) {
try {
if (!fileIt.hasNext() && (currentFileStream == null || currentFileStream.available() < 1))
break;
} catch (IOException e) {
currentFileStream = null;
if (!fileIt.hasNext()) break;
}
while (true) {
try {
if (currentFileStream != null && currentFileStream.available() > 0) break;
} catch (IOException e1) {
currentFileStream = null;
}
if (!fileIt.hasNext()) {
nextBlock = null;
currentFileStream = null;
return;
}
try {
currentFileStream = new FileInputStream(fileIt.next());
} catch (FileNotFoundException e) {
currentFileStream = null;
}
}
try {
int nextChar = currentFileStream.read();
while (nextChar != -1) {
if (nextChar != ((params.getPacketMagic() >>> 24) & 0xff)) {
nextChar = currentFileStream.read();
continue;
}
nextChar = currentFileStream.read();
if (nextChar != ((params.getPacketMagic() >>> 16) & 0xff)) continue;
nextChar = currentFileStream.read();
if (nextChar != ((params.getPacketMagic() >>> 8) & 0xff)) continue;
nextChar = currentFileStream.read();
if (nextChar == (params.getPacketMagic() & 0xff)) break;
}
byte[] bytes = new byte[4];
currentFileStream.read(bytes, 0, 4);
long size = Utils.readUint32BE(Utils.reverseBytes(bytes), 0);
// We allow larger than MAX_BLOCK_SIZE because test code uses this as well.
if (size > Block.MAX_BLOCK_SIZE * 2 || size <= 0) continue;
bytes = new byte[(int) size];
currentFileStream.read(bytes, 0, (int) size);
try {
nextBlock = new Block(params, bytes);
} catch (ProtocolException e) {
nextBlock = null;
continue;
}
break;
} catch (IOException e) {
currentFileStream = null;
continue;
}
}
}
/** Creates a scriptPubKey for the given redeem script. */
public static Script createP2SHOutputScript(Script redeemScript) {
byte[] hash = Utils.sha256hash160(redeemScript.getProgram());
return ScriptBuilder.createP2SHOutputScript(hash);
}