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Java library for adding altcoin support to bitcoinj
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Mike Hearn ab8227882d Patch 5 from Steves lazy parsing patchset: 
Optimise BitcoinSerialiser for Transactions.  When calculating checksum on deserialize use it prepopulate the transaction's hash.  Likewise on serialize check if the Transaction already has a hash and use that to write checksum bytes.  This yields performance improvesment up to 400% by saving on a double hash.

Don't parse all the subcomponents of a Transaction purely to calculate its length, instead do the minimal work possible.

Recaching on a call to bitcoinSerialise().  Prevents double serialization of transactions and inputs/outputs when calculating a merkleroot during block serialization.  Also makes it more likely the original larger byte array can be GC'd
2011-10-14 12:25:05 +00:00
src/com/google/bitcoin Patch 5 from Steves lazy parsing patchset: 2011-10-14 12:25:05 +00:00
target/site/apidocs Move javadocs to the maven directory, check in fresh set 2011-06-27 14:29:17 +00:00
tests/com/google/bitcoin Patch 5 from Steves lazy parsing patchset: 2011-10-14 12:25:05 +00:00
AUTHORS Add Steve to the AUTHORS file. 2011-09-16 07:50:22 +00:00
COPYING Initial checkin of BitCoinJ 2011-03-07 10:17:10 +00:00
pom.xml Patch from Gary and Jonny to switch the Maven config to a new Nexus-based build server. Changes how SLF44J is imported to avoid forcing a particular implementation on the user. Remove redundant or unnecessary parts of the POM. 2011-09-25 20:32:22 +00:00
README Update README. 2011-09-10 09:53:41 +00:00
TODO Second part of Steves lazy parsing patchset: 2011-10-11 17:24:50 +00:00

README 

To get started, ensure you have the latest JDK installed, and download Maven from:

  http://maven.apache.org/

Then run "mvn clean package" to compile the software. You can also run "mvn site:site" to generate a website with
useful information like JavaDocs. The outputs are under the target/ directory.

Now ensure you're running a BitCoin node locally and run the example app:

  mvn exec:java -Dexec.mainClass=com.google.bitcoin.examples.PingService

It will download the block chain and eventually print a BitCoin address. If you send coins to it,
you should get them back a few minutes later when a block is solved.

Note that if you connect to a node that is itself downloading the block chain, you will see very slow progress (1
block per second or less). Find a node that isn't heavily loaded to connect to.

If you get a SocketDisconnectedException, the node you've connected to has its max send buffer set to low
(unfortunately the default is too low). Connect to a node that has a bigger send buffer,
settable by passing -maxsendbuffer=25600 to the Bitcoin C++ software.

For the convenience of Eclipse users, you can copy dependency jars to target/dependency using:

    mvn dependency:copy-dependencies