YARG-34 Log information from LibreOffice output using slf4j-api

(cherry picked from commit bce6a82)

core/modules/core/src/com/haulmont/yarg/formatters/impl/doc/connector/OOServer.java

@@ -42,7 +42,7 @@
  * http:https://udk.openoffice.org/source/browse/udk/javaunohelper/com/sun/star/comp/helper/Bootstrap.java?view=markup
  */
 public class OOServer {
- protected static final Logger log = LoggerFactory.getLogger(JavaProcessManager.class);
+ protected static final Logger log = LoggerFactory.getLogger(OOServer.class);
  /**
  * The OOo server process.
  */
@@ -99,7 +99,7 @@ public OOServer(String oooExecFolder, List<String> oooOptions, String host, int
  * the pipe name "oooPipe" the accept option looks like this:
  * - accept option : -accept=pipe,name=oooPipe;urp;
  */
- public void start() throws BootstrapException, IOException {
+ public synchronized void start() throws BootstrapException, IOException {
  // find office executable relative to this class's class loader
  String sOffice = System.getProperty("os.name").startsWith("Windows") ? "soffice.exe" : "soffice";
  //accept option !Note! we are using old version notation (- instead of --) to support old version of office
@@ -127,8 +127,8 @@ public void start() throws BootstrapException, IOException {
  // start office process
  oooProcess = Runtime.getRuntime().exec(argumentsList.toArray(new String[0]));
 
- pipe(oooProcess.getInputStream(), System.out, "CO> ");
- pipe(oooProcess.getErrorStream(), System.err, "CE> ");
+ pipe(oooProcess.getInputStream(), "OUT");
+ pipe(oooProcess.getErrorStream(), "ERR");
  }
 
  public String toUrl(File file) {
@@ -143,18 +143,18 @@ public String toUrl(File file) {
  * nothing.
  * If there has been a previous start, kill destroys the process.
  */
- public void kill() {
+ public synchronized void kill() {
  if (oooProcess != null) {
- log.info("OOServer is killing office instance with port " + port);
+ log.info("OOServer is killing office instance with port {}", port);
  List<Long> pids = processManager.findPid(host, port);
  processManager.kill(oooProcess, pids);
  oooProcess = null;
  deleteProfileDir();
  }
  }
 
- private static void pipe(final InputStream in, final PrintStream out, final String prefix) {
- new Thread("Pipe: " + prefix) {
+ protected void pipe(final InputStream in, final String prefix) {
+ new Thread(String.format("OOServer: %s", prefix)) {
  @Override
  public void run() {
  BufferedReader r = new BufferedReader(new InputStreamReader(in));
@@ -164,10 +164,10 @@ public void run() {
  if (s == null) {
  break;
  }
- out.println(prefix + s);
+ log.debug("{}: {}", prefix, s);
  }
  } catch (IOException e) {
- e.printStackTrace(System.err);
+ log.debug("OOServer error:", e);
  }
  }
  }.start();