import org.hsqldb.ServerConstants; //导入依赖的package包/类
/**
 * Blocks the current thread until the server is shut down.
 */
public void waitForServer() {
  while (true) {
    int curState = server.getState();
    if (curState == ServerConstants.SERVER_STATE_SHUTDOWN) {
      LOG.info("Got shutdown notification");
      break;
    }

    try {
      Thread.sleep(100);
    } catch (InterruptedException ie) {
      LOG.info("Interrupted while blocking for server:"
          + StringUtils.stringifyException(ie));
    }
  }
}
 

import org.hsqldb.ServerConstants; //导入依赖的package包/类
public void stop() {
	server.stop();
	int maxWait = 5000 * 5;
	int currentWait = 0;
	while (server.getState() != ServerConstants.SERVER_STATE_SHUTDOWN) {
		LOG.log(Level.INFO, "Shutting down hsqldb-server. State: " + server.getStateDescriptor());
		LOG.log(Level.INFO, name);
		LOG.log(Level.INFO, path);
		LOG.log(Level.INFO, "Waiting 5 seconds ...");
		try {
			Thread.sleep(5000);
			currentWait += 5000;
		} catch (InterruptedException interrupt) {
			LOG.log(Level.WARNING, "Shutdown interrupted.", interrupt);
			break;
		}
		if(currentWait >= maxWait) {
			LOG.info("Giving up... ;-)");
			break;
		}
	}
	if(server.getState() == ServerConstants.SERVER_STATE_SHUTDOWN) {
		LOG.log(Level.INFO, "Shutdown complete!");
	}
	server = null;
}
 

import org.hsqldb.ServerConstants; //导入依赖的package包/类
public void start() {
	server = new Server();
	server.setPort(port);
	server.setNoSystemExit(true);
	server.setDatabasePath(0, path);
	server.setDatabaseName(0, name);
	server.setErrWriter(new PrintWriter(System.out));
	server.setLogWriter(new PrintWriter(System.out));
	server.setSilent(true);
	server.setTrace(false);
	server.start();
	int maxWait = 5000 * 2;
	int currentWait = 0;
	while (server.getState() != ServerConstants.SERVER_STATE_ONLINE) {
		LOG.log(Level.INFO, "Starting hsqldb-server. State: " + server.getStateDescriptor());
		LOG.log(Level.INFO, name);
		LOG.log(Level.INFO, path);
		LOG.log(Level.INFO, "Waiting 5 seconds ...");
		try {
			Thread.sleep(5000);
			currentWait += 5000;
		} catch (InterruptedException interrupt) {
			LOG.log(Level.WARNING, "Start interrupted.", interrupt);
			break;
		}
		if(currentWait >= maxWait) {
			LOG.info("Giving up... ;-)");
			break;
		}
	}
	if(server.getState() == ServerConstants.SERVER_STATE_ONLINE) {
		LOG.log(Level.INFO, "Started!");
	}
}
 

import org.hsqldb.ServerConstants; //导入依赖的package包/类
public void setUp() throws SQLException {

    switch (mode) {
    case NET:
      url = "jdbc:hsqldb:hsql://localhost:4808/test";
      break;
    case MEM:
      url = "jdbc:hsqldb:mem:test;sql.enforce_strict_size=true";
      server = new Server();
      server.setDatabaseName(0, "test");
      server.setDatabasePath(0, url);
      server.setLogWriter(new PrintWriter(System.out));
      server.setErrWriter(new PrintWriter(System.out));
      server.setTrace(false);
      server.setSilent(false);
      server.start();

      break;
    case FILE:
      url = "jdbc:hsqldb:file:test;sql.enforce_strict_size=true";
      break;

    }

    // try {
    // Class.forName(DRIVER_CLASS);
    // } catch (Exception e) {
    // e.printStackTrace();
    // System.out.println(this + ".setUp() error: " + e.getMessage());
    // }
    // Thread.yield();
    System.out.println(server.getState());

    int waitCount = 0;
    while (server.getState() != ServerConstants.SERVER_STATE_ONLINE
        && waitCount < 5) {
      try {
        waitCount++;
        Thread.sleep(1);
      } catch (InterruptedException e) {
      }
    }
    createTables();
  }