// Send data message to the all nodes on the channel.
public boolean sendDataToAll(String toChannel, byte[] buf) {
if (mChord == null) {
Log.v(TAG, "sendDataToAll : mChord IS NULL !!");
return false;
}
// Request the channel interface for the specific channel name.
IChordChannel channel = mChord.getJoinedChannel(toChannel);
if (null == channel) {
Log.e(TAG, TAGClass + "sendDataToAll : invalid channel instance");
return false;
}
byte[][] payload = new byte[1][];
payload[0] = buf;
Log.v(TAG, TAGClass + "sendDataToAll : " + new String(buf));
/*
* @param payloadType User defined message type. It is mandatory.
* @param payload The package of data to send
* @return Returns true when file transfer is success. Otherwise, false
* is returned.
*/
if (false == channel.sendDataToAll(CHORD_APITEST_MESSAGE_TYPE, payload)) {
Log.e(TAG, TAGClass + "sendDataToAll : fail to sendDataToAll");
return false;
}
return true;
}
// Requests for nodes on the channel.
public List<String> getJoinedNodeList(String channelName) {
Log.d(TAG, TAGClass + "getJoinedNodeList()");
// Request the channel interface for the specific channel name.
IChordChannel channel = mChord.getJoinedChannel(channelName);
if (null == channel) {
Log.e(TAG, TAGClass + "getJoinedNodeList() : invalid channel instance-" + channelName);
return null;
}
return channel.getJoinedNodeList();
}
// Reject to receive file.
public boolean rejectFile(String fromChannel, String coreTransactionId) {
Log.d(TAG, TAGClass + "rejectFile()");
// Request the channel interface for the specific channel name.
IChordChannel channel = mChord.getJoinedChannel(fromChannel);
if (null == channel) {
Log.e(TAG, TAGClass + "cancelFile() : invalid channel instance");
return false;
}
// @param exchangeId Exchanged ID
return channel.rejectFile(coreTransactionId);
}
// Cancel file transfer while it is in progress.
public boolean cancelFile(String channelName, String exchangeId) {
Log.d(TAG, TAGClass + "cancelFile()");
// Request the channel interface for the specific channel name.
IChordChannel channel = mChord.getJoinedChannel(channelName);
if (null == channel) {
Log.e(TAG, TAGClass + "cancelFile() : invalid channel instance");
return false;
}
// @param exchangeId Exchanged ID
return channel.cancelFile(exchangeId);
}
// Get an IPv4 address that the node has.
public String getNodeIpAddress(String channelName, String nodeName) {
Log.d(
TAG,
TAGClass + "getNodeIpAddress() channelName : " + channelName + ", nodeName : " + nodeName);
// Request the channel interface for the specific channel name.
IChordChannel channel = mChord.getJoinedChannel(channelName);
if (null == channel) {
Log.e(TAG, TAGClass + "getNodeIpAddress : invalid channel instance");
return "";
}
/*
* @param nodeName The node name to find IPv4 address.
* @return Returns an IPv4 Address.When there is not the node name in
* the channel, null is returned.
*/
return channel.getNodeIpAddress(nodeName);
}
// Accept to receive file.
public boolean acceptFile(String fromChannel, String exchangeId) {
Log.d(TAG, TAGClass + "acceptFile()");
// Request the channel interface for the specific channel name.
IChordChannel channel = mChord.getJoinedChannel(fromChannel);
if (null == channel) {
Log.e(TAG, TAGClass + "acceptFile() : invalid channel instance");
return false;
}
/*
* @param exchangeId Exchanged ID
* @param chunkTimeoutMsec The timeout to request the chunk data.
* @param chunkRetries The count that allow to retry to request chunk
* data.
* @param chunkSize Chunk size
*/
return channel.acceptFile(exchangeId, 30 * 1000, 2, 300 * 1024);
}
// Send file to the node on the channel.
public String sendFile(String toChannel, String strFilePath, String toNode) {
Log.d(TAG, TAGClass + "sendFile() ");
// Request the channel interface for the specific channel name.
IChordChannel channel = mChord.getJoinedChannel(toChannel);
if (null == channel) {
Log.e(TAG, TAGClass + "sendFile() : invalid channel instance");
return null;
}
/*
* @param toNode The node name that the file is sent to. It is
* mandatory.
* @param fileType User defined file type. It is mandatory.
* @param filePath The absolute path of the file to be transferred. It
* is mandatory.
* @param timeoutMsec The time to allow the receiver to accept the
* receiving data requests.
*/
return channel.sendFile(
toNode, MESSAGE_TYPE_FILE_NOTIFICATION, strFilePath, SHARE_FILE_TIMEOUT_MILISECONDS);
}
// Send data message to the node.
public boolean sendData(String toChannel, byte[] buf, String nodeName) {
if (mChord == null) {
Log.v(TAG, "sendData : mChord IS NULL !!");
return false;
}
// Request the channel interface for the specific channel name.
IChordChannel channel = mChord.getJoinedChannel(toChannel);
if (null == channel) {
Log.e(TAG, TAGClass + "sendData : invalid channel instance");
return false;
}
if (nodeName == null) {
Log.v(TAG, "sendData : NODE Name IS NULL !!");
return false;
}
byte[][] payload = new byte[1][];
payload[0] = buf;
Log.v(TAG, TAGClass + "sendData : " + new String(buf) + ", des : " + nodeName);
/*
* @param toNode The joined node name that the message is sent to. It is
* mandatory.
* @param payloadType User defined message type. It is mandatory.
* @param payload The package of data to send
* @return Returns true when file transfer is success. Otherwise, false
* is returned
*/
if (false == channel.sendData(nodeName, CHORD_APITEST_MESSAGE_TYPE, payload)) {
Log.e(TAG, TAGClass + "sendData : fail to sendData");
return false;
}
return true;
}
