--- /dev/null
+/*
+ * Copyright (C) 2013 - David Goulet <dgoulet@efficios.com>
+ *
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License, version 2.1 only,
+ * as published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+package org.lttng.ust.jul;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.logging.Logger;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Enumeration;
+
+public interface LTTngSessiondCmd2_4 {
+ /**
+ * Maximum name length for a logger name to be send to sessiond.
+ */
+ final static int NAME_MAX = 255;
+
+ public interface SessiondResponse {
+ /**
+ * Gets a byte array of the command so that it may be streamed
+ *
+ * @return the byte array of the command
+ */
+ public byte[] getBytes();
+ }
+
+ public interface SessiondCommand {
+ /**
+ * Populate the class from a byte array
+ *
+ * @param data
+ * the byte array containing the streamed command
+ */
+ public void populate(byte[] data);
+ }
+
+ public enum lttng_jul_command {
+ /** List logger(s). */
+ CMD_LIST(1),
+ /** Enable logger by name. */
+ CMD_ENABLE(2),
+ /** Disable logger by name. */
+ CMD_DISABLE(3);
+ private int code;
+
+ private lttng_jul_command(int c) {
+ code = c;
+ }
+
+ public int getCommand() {
+ return code;
+ }
+ }
+
+ enum lttng_jul_ret_code {
+ CODE_SUCCESS_CMD(1),
+ CODE_INVALID_CMD(2),
+ CODE_UNK_LOGGER_NAME(3);
+ private int code;
+
+ private lttng_jul_ret_code(int c) {
+ code = c;
+ }
+
+ public int getCode() {
+ return code;
+ }
+ }
+
+ public class sessiond_hdr implements SessiondCommand {
+ /** ABI size of command header. */
+ public final static int SIZE = 16;
+ /** Payload size in bytes following this header. */
+ public long data_size;
+ /** Command type. */
+ public lttng_jul_command cmd;
+ /** Command version. */
+ public int cmd_version;
+
+ public void populate(byte[] data) {
+ ByteBuffer buf = ByteBuffer.wrap(data);
+ buf.order(ByteOrder.BIG_ENDIAN);
+
+ data_size = buf.getLong();
+ cmd = lttng_jul_command.values()[buf.getInt() - 1];
+ cmd_version = buf.getInt();
+ }
+ }
+
+ public class sessiond_enable_handler implements SessiondResponse, SessiondCommand {
+ private final static int SIZE = 4;
+ public String name;
+
+ /** Return status code to the session daemon. */
+ public lttng_jul_ret_code code;
+
+ @Override
+ public void populate(byte[] data) {
+ ByteBuffer buf = ByteBuffer.wrap(data);
+ buf.order(ByteOrder.LITTLE_ENDIAN);
+ name = new String(data, 0, data.length);
+ }
+
+ @Override
+ public byte[] getBytes() {
+ byte data[] = new byte[SIZE];
+ ByteBuffer buf = ByteBuffer.wrap(data);
+ buf.order(ByteOrder.BIG_ENDIAN);
+ buf.putInt(code.getCode());
+ return data;
+ }
+
+ /**
+ * Execute enable handler action which is to enable the given handler
+ * to the received name.
+ *
+ * @return Event name as a string if the event is NOT found thus was
+ * not enabled.
+ */
+ public String execute(LTTngLogHandler handler) {
+ Logger logger;
+
+ if (name == null) {
+ this.code = lttng_jul_ret_code.CODE_INVALID_CMD;
+ return null;
+ }
+
+ /* Wild card to enable ALL logger. */
+ if (name.trim().equals("*")) {
+ String loggerName;
+ Enumeration loggers = handler.logManager.getLoggerNames();
+ while (loggers.hasMoreElements()) {
+ loggerName = loggers.nextElement().toString();
+ /* Somehow there is always an empty string at the end. */
+ if (loggerName == "") {
+ continue;
+ }
+
+ logger = handler.logManager.getLogger(loggerName);
+ logger.addHandler(handler);
+ }
+ this.code = lttng_jul_ret_code.CODE_SUCCESS_CMD;
+ return null;
+ }
+
+ this.code = lttng_jul_ret_code.CODE_SUCCESS_CMD;
+ logger = handler.logManager.getLogger(name.trim());
+ if (logger != null) {
+ logger.addHandler(handler);
+ return null;
+ } else {
+ return new String(name);
+ }
+ }
+ }
+
+ public class sessiond_disable_handler implements SessiondResponse, SessiondCommand {
+ private final static int SIZE = 4;
+ public String name;
+
+ /** Return status code to the session daemon. */
+ public lttng_jul_ret_code code;
+
+ @Override
+ public void populate(byte[] data) {
+ ByteBuffer buf = ByteBuffer.wrap(data);
+ buf.order(ByteOrder.BIG_ENDIAN);
+ name = new String(data, 0, data.length);
+ }
+
+ @Override
+ public byte[] getBytes() {
+ byte data[] = new byte[SIZE];
+ ByteBuffer buf = ByteBuffer.wrap(data);
+ buf.order(ByteOrder.BIG_ENDIAN);
+ buf.putInt(code.getCode());
+ return data;
+ }
+
+ /**
+ * Execute disable handler action which is to disable the given handler
+ * to the received name.
+ */
+ public void execute(LTTngLogHandler handler) {
+ Logger logger;
+
+ if (name == null) {
+ this.code = lttng_jul_ret_code.CODE_INVALID_CMD;
+ return;
+ }
+
+ /* Wild card to disable ALL logger. */
+ if (name.trim().equals("*")) {
+ String loggerName;
+ Enumeration loggers = handler.logManager.getLoggerNames();
+ while (loggers.hasMoreElements()) {
+ loggerName = loggers.nextElement().toString();
+ /* Somehow there is always an empty string at the end. */
+ if (loggerName == "") {
+ continue;
+ }
+
+ logger = handler.logManager.getLogger(loggerName);
+ logger.removeHandler(handler);
+ }
+ this.code = lttng_jul_ret_code.CODE_SUCCESS_CMD;
+ return;
+ }
+
+ logger = handler.logManager.getLogger(name.trim());
+ if (logger == null) {
+ this.code = lttng_jul_ret_code.CODE_UNK_LOGGER_NAME;
+ } else {
+ logger.removeHandler(handler);
+ this.code = lttng_jul_ret_code.CODE_SUCCESS_CMD;
+ }
+ }
+ }
+
+ public class sessiond_list_logger implements SessiondResponse {
+ private final static int SIZE = 12;
+
+ private int data_size = 0;
+ private int nb_logger = 0;
+
+ List<String> logger_list = new ArrayList<String>();
+
+ /** Return status code to the session daemon. */
+ public lttng_jul_ret_code code;
+
+ @Override
+ public byte[] getBytes() {
+ byte data[] = new byte[SIZE + data_size];
+ ByteBuffer buf = ByteBuffer.wrap(data);
+ buf.order(ByteOrder.BIG_ENDIAN);
+
+ /* Returned code */
+ buf.putInt(code.getCode());
+ buf.putInt(data_size);
+ buf.putInt(nb_logger);
+
+ for (String logger: logger_list) {
+ buf.put(logger.getBytes());
+ /* NULL terminated byte after the logger name. */
+ buf.put((byte) 0x0);
+ }
+ return data;
+ }
+
+ /**
+ * Execute enable handler action which is to enable the given handler
+ * to the received name.
+ */
+ public void execute(LTTngLogHandler handler) {
+ String loggerName;
+
+ Enumeration loggers = handler.logManager.getLoggerNames();
+ while (loggers.hasMoreElements()) {
+ loggerName = loggers.nextElement().toString();
+ /* Somehow there is always an empty string at the end. */
+ if (loggerName == "") {
+ continue;
+ }
+
+ this.logger_list.add(loggerName);
+ this.nb_logger++;
+ this.data_size += loggerName.length() + 1;
+ }
+
+ this.code = lttng_jul_ret_code.CODE_SUCCESS_CMD;
+ }
+ }
+}
projects / lttng-ust.git / blobdiff