com.frostwire.jlibtorrent.BDecodeNode Maven / Gradle / Ivy
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package com.frostwire.jlibtorrent;
import com.frostwire.jlibtorrent.swig.bdecode_node;
import com.frostwire.jlibtorrent.swig.byte_vector;
import com.frostwire.jlibtorrent.swig.error_code;
/**
* @author gubatron
* @author aldenml
*/
public final class BDecodeNode {
private final bdecode_node n;
private final byte_vector buffer;
/**
* @param n the native object
*/
public BDecodeNode(bdecode_node n) {
this(n, null);
}
/**
* Used to keep the buffer reference around.
*
* @param n the native object
* @param buffer the buffer backing up the native object
*/
public BDecodeNode(bdecode_node n, byte_vector buffer) {
this.n = n;
this.buffer = buffer;
}
/**
* @return the native object
*/
public bdecode_node swig() {
return n;
}
/**
* This methods returns the internal buffer or null
* if it was constructed without one.
*
* This also prevent premature garbage collection in case
* the node was created from a constructed buffer.
*
* @return the pinned buffer
*/
public byte_vector buffer() {
return buffer;
}
/**
* A JSON style string representation
*
* @return the string representation
*/
@Override
public String toString() {
return bdecode_node.to_string(n, false, 2);
}
public static BDecodeNode bdecode(byte[] data) {
byte_vector buffer = Vectors.bytes2byte_vector(data);
bdecode_node n = new bdecode_node();
error_code ec = new error_code();
int ret = bdecode_node.bdecode(buffer, n, ec);
if (ret == 0) {
return new BDecodeNode(n, buffer);
} else {
throw new IllegalArgumentException("Can't decode data: " + ec.message());
}
}
}