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SPVBlockStore: Add constructor for a custom capacity block store.

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This commit is contained in:
Andreas Schildbach
2016-08-29 10:45:06 +02:00
parent aabedaeb8d
commit ea7ea3b304
1 changed files with 19 additions and 5 deletions
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24
core/src/main/java/org/bitcoinj/store/SPVBlockStore.java
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@@ -44,8 +44,8 @@ public class SPVBlockStore implements BlockStore {
public static final String HEADER_MAGIC = "SPVB";
protected volatile MappedByteBuffer buffer;
protected int capacity;
protected NetworkParameters params;
protected final int capacity;
protected final NetworkParameters params;
protected ReentrantLock lock = Threading.lock("SPVBlockStore");
@@ -80,14 +80,28 @@ public class SPVBlockStore implements BlockStore {
protected RandomAccessFile randomAccessFile = null;
/**
* Creates and initializes an SPV block store. Will create the given file if it's missing. This operation
* will block on disk.
* Creates and initializes an SPV block store that can hold {@link #DEFAULT_CAPACITY} blocks. Will create the given
* file if it's missing. This operation will block on disk.
* @param file file to use for the block store
* @throws BlockStoreException if something goes wrong
*/
public SPVBlockStore(NetworkParameters params, File file) throws BlockStoreException {
this(params, file, DEFAULT_CAPACITY);
}
/**
* Creates and initializes an SPV block store that can hold a given amount of blocks. Will create the given file if
* it's missing. This operation will block on disk.
* @param file file to use for the block store
* @param capacity custom capacity
* @throws BlockStoreException if something goes wrong
*/
public SPVBlockStore(NetworkParameters params, File file, int capacity) throws BlockStoreException {
checkNotNull(file);
this.params = checkNotNull(params);
checkArgument(capacity > 0);
this.capacity = capacity;
try {
this.capacity = DEFAULT_CAPACITY;
boolean exists = file.exists();
// Set up the backing file.
randomAccessFile = new RandomAccessFile(file, "rw");