Added Freeze/library demo.

1 files changed, 371 insertions, 0 deletions

diff --git a/java/demo/Freeze/library/Parser.java b/java/demo/Freeze/library/Parser.java
new file mode 100644
index 00000000000..6eabc9a78c0
--- /dev/null
+++ b/java/demo/Freeze/library/Parser.java
@@ -0,0 +1,371 @@
+// **********************************************************************
+//
+// Copyright (c) 2001
+// MutableRealms, Inc.
+// Huntsville, AL, USA
+//
+// All Rights Reserved
+//
+// **********************************************************************
+
+class Parser
+{
+    public
+    Parser(Ice.Communicator communicator, LibraryPrx library)
+    {
+	_communicator = communicator;
+	_library = library;
+    }
+
+    public void
+    usage()
+    {
+	System.err.print(
+	    "help             Print this message.\n" +
+	    "exit, quit       Exit this program.\n" +
+	    "add isbn title authors  Create new book.\n" +
+	    "isbn NUMBER             Find the book with given ISBN number.\n" +
+	    "authors NAME            Find all books by the given authors.\n" +
+	    "next                    Set the current book to the next one that was found.\n" +
+	    "current                 Display the current book.\n" +
+	    "rent NAME               Rent the current book for customer NAME.\n" +
+	    "return                  Return the currently rented book.\n" +
+	    "remove           Permanently remove the current book from the library.\n" +
+	    "size SIZE        Set the evictor size for books to SIZE.\n" +
+	    "shutdown         Shut the library server down.\n");
+    }
+
+    public void
+    addBook(java.util.LinkedList args)
+    {
+	if (args.size() != 3)
+	{
+	    error("`add' requires at exactly three arguments (type `help' for more info)");
+	    return;
+	}
+	
+	try
+	{
+	    BookDescription desc = new BookDescription();
+	    desc.isbn = (String)args.get(0);
+	    desc.title = (String)args.get(1);
+	    desc.authors = (String)args.get(2);
+	    
+	    BookPrx book = _library.createBook(desc);
+	    System.out.println("added new book with isbn " + desc.isbn);
+	}
+	catch(DatabaseException ex)
+	{
+	    error(ex.message);
+	}
+	catch(BookExistsException ex)
+	{
+	    error("the book already exists.");
+	}
+	catch(Ice.LocalException ex)
+	{
+	    error(ex.toString());
+	}
+    }
+
+    public void
+    findIsbn(java.util.LinkedList args)
+    {
+	if (args.size() != 1)
+	{
+	    error("`isbn' requires exactly one argument (type `help' for more info)");
+	    return;
+	}
+	
+	try
+	{
+	    _foundBooks = null;
+	    _current = 0;
+
+	    BookPrx book = _library.findByIsbn((String)args.get(0));
+	    if (book == null)
+	    {
+		System.out.println("no book with that ISBN number exists.");
+	    }
+	    else
+	    {
+		_foundBooks = new BookPrx[1];
+		_foundBooks[0] = book;
+		printCurrent();
+	    }
+	}
+	catch(DatabaseException ex)
+	{
+	    error(ex.message);
+	}
+	catch(Ice.LocalException ex)
+	{
+	    error(ex.toString());
+	}
+    }
+
+    public void
+    findAuthors(java.util.LinkedList args)
+    {
+	if (args.size() != 1)
+	{
+	    error("`authors' requires exactly one argument (type `help' for more info)");
+	    return;
+	}
+	
+	try
+	{
+	    _foundBooks = _library.findByAuthors((String)args.get(0));
+	    _current = 0;
+	    System.out.println("number of books found: " + _foundBooks.length);
+	    printCurrent();
+	}
+	catch(DatabaseException ex)
+	{
+	    error(ex.message);
+	}
+	catch(Ice.LocalException ex)
+	{
+	    error(ex.toString());
+	}
+    }
+
+    public void
+    nextFoundBook()
+    {
+	if (_current != _foundBooks.length)
+	{
+	    ++_current;
+	}
+	printCurrent();
+    }
+    
+    public void
+    printCurrent()
+    {
+	try
+	{
+	    if (_current != _foundBooks.length)
+	    {
+		BookDescription desc = _foundBooks[_current].getBookDescription();
+		String renter = null;
+		try
+		{
+		    renter = _foundBooks[_current].getRenterName();
+		}
+		catch(BookNotRentedException ex)
+		{
+		}
+
+		System.out.println("current book is:" );
+		System.out.println("isbn: " + desc.isbn);
+		System.out.println("title: " + desc.title);
+		System.out.println("authors: " + desc.authors);
+		if (renter != null)
+		{
+		    System.out.println("rented: " + renter);
+		}
+	    }
+	    else
+	    {
+		System.out.println("no current book");
+	    }
+	}
+	catch(Ice.LocalException ex)
+	{
+	    error(ex.toString());
+	}
+    }
+
+    public void
+    rentCurrent(java.util.LinkedList args)
+    {
+	if (args.size() != 1)
+	{
+	    error("`rent' requires exactly one argument (type `help' for more info)");
+	    return;
+	}
+
+	try
+	{
+	    if (_current != _foundBooks.length)
+	    {
+		_foundBooks[_current].rentBook((String)args.get(0));
+		System.out.println("the book is now rented by `" + (String)args.get(0) + "'");
+	    }
+	    else
+	    {
+		System.out.println("no current book");
+	    }
+	}
+	catch(BookRentedException ex)
+	{
+	    System.out.println("the book has already been rented.");
+	}
+	catch(Ice.LocalException ex)
+	{
+	    error(ex.toString());
+	}
+    }
+
+    public void
+    returnCurrent()
+    {
+	try
+	{
+	    if (_current != _foundBooks.length)
+	    {
+		_foundBooks[_current].returnBook();
+		System.out.println( "the book has been returned.");
+	    }
+	    else
+	    {
+		System.out.println("no current book");
+	    }
+	}
+	catch(BookNotRentedException ex)
+	{
+	    System.out.println("the book is not currently rented.");
+	}
+	catch(Ice.LocalException ex)
+	{
+	    error(ex.toString());
+	}
+    }
+
+    public void
+    removeCurrent()
+    {
+	try
+	{
+	    if (_current != _foundBooks.length)
+	    {
+		_foundBooks[_current].destroy();
+		System.out.println("removed current book" );
+	    }
+	    else
+	    {
+		System.out.println("no current book" );
+	    }
+	}
+	catch(DatabaseException ex)
+	{
+	    error(ex.message);
+	}
+	catch(Ice.LocalException ex)
+	{
+	    error(ex.toString());
+	}
+    }
+
+    public void
+    setEvictorSize(java.util.LinkedList args)
+    {
+	if (args.size() != 1)
+	{
+	    error("`size' requires exactly one argument (type `help' for more info)");
+	    return;
+	}
+
+	String s = (String)args.getFirst();
+	try
+	{
+	    _library.setEvictorSize(Integer.parseInt(s));
+	}
+	catch (NumberFormatException ex)
+	{
+	    error("not a number " + s);
+	}
+	catch(DatabaseException ex)
+	{
+	    error(ex.message);
+	}
+	catch(Ice.LocalException ex)
+	{
+	    error(ex.toString());
+	}
+    }
+
+    public void
+    shutdown()
+    {
+	try
+	{
+	    _library.shutdown();
+	}
+	catch(Ice.LocalException ex)
+	{
+	    error(ex.toString());
+	}
+    }
+
+    public void
+    error(String s)
+    {
+	System.err.println("error: " + s);
+    }
+
+    public void
+    warning(String s)
+    {
+	System.err.println("warning: " + s);
+    }
+
+    public String
+    getInput()
+    {
+	if (_interactive)
+	{
+	    System.out.print(">>> ");
+	    System.out.flush();
+	}
+
+	try
+	{
+	    return _in.readLine();
+	}
+	catch(java.io.IOException e)
+	{
+	    return null;
+	}
+    }
+
+    public int
+    parse()
+    {
+	_foundBooks = new BookPrx[0];
+	_current = 0;
+
+	_in = new java.io.BufferedReader(new java.io.InputStreamReader(System.in));
+	_interactive = true;
+
+	Grammar g = new Grammar(this);
+	g.parse();
+
+	return 0;
+    }
+
+    public int
+    parse(java.io.BufferedReader in)
+    {
+	_foundBooks = new BookPrx[0];
+	_current = 0;
+
+	_in = in;
+	_interactive = false;
+
+	Grammar g = new Grammar(this);
+	g.parse();
+
+	return 0;
+    }
+
+    private BookPrx[] _foundBooks;
+    private int _current;
+
+    private Ice.Communicator _communicator;
+    private LibraryPrx _library;
+
+    private java.io.BufferedReader _in;
+    private boolean _interactive;
+}