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Java example source code file (PrintGenerator.java)

This example Java source code file (PrintGenerator.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

batchenvironment, both, compilererror, compoundtype, contextstack, idl, indentingwriter, java, main, outputstreamwriter, printgenerator, string, type, unknown

The PrintGenerator.java Java example source code

/*
 * Copyright (c) 1998, 2007, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
/*
 * Licensed Materials - Property of IBM
 * RMI-IIOP v1.0
 * Copyright IBM Corp. 1998 1999  All Rights Reserved
 *
 */

package sun.rmi.rmic.iiop;

import java.io.File;
import java.io.IOException;
import java.io.OutputStreamWriter;
import sun.tools.java.CompilerError;
import sun.tools.java.ClassDefinition;
import sun.rmi.rmic.IndentingWriter;
import sun.rmi.rmic.Main;

/**
 * An IDL generator for rmic.
 *
 * @author      Bryan Atsatt
 */
public class PrintGenerator implements sun.rmi.rmic.Generator,
                                       sun.rmi.rmic.iiop.Constants {

    private static final int JAVA = 0;
    private static final int IDL = 1;
    private static final int BOTH = 2;

    private int whatToPrint; // Initialized in parseArgs.
    private boolean global = false;
    private boolean qualified = false;
    private boolean trace = false;
    private boolean valueMethods = false;

    private IndentingWriter out;

    /**
     * Default constructor for Main to use.
     */
    public PrintGenerator() {
        OutputStreamWriter writer = new OutputStreamWriter(System.out);
        out = new IndentingWriter (writer);
    }

    /**
     * Examine and consume command line arguments.
     * @param argv The command line arguments. Ignore null
     * @param error Report any errors using the main.error() methods.
     * @return true if no errors, false otherwise.
     */
    public boolean parseArgs(String argv[], Main main) {
        for (int i = 0; i < argv.length; i++) {
            if (argv[i] != null) {
                String arg = argv[i].toLowerCase();
                if (arg.equals("-xprint")) {
                    whatToPrint = JAVA;
                    argv[i] = null;
                    if (i+1 < argv.length) {
                        if (argv[i+1].equalsIgnoreCase("idl")) {
                            argv[++i] = null;
                            whatToPrint = IDL;
                        } else if (argv[i+1].equalsIgnoreCase("both")) {
                            argv[++i] = null;
                            whatToPrint = BOTH;
                        }
                    }
                } else if (arg.equals("-xglobal")) {
                    global = true;
                    argv[i] = null;
                } else if (arg.equals("-xqualified")) {
                    qualified = true;
                    argv[i] = null;
                } else if (arg.equals("-xtrace")) {
                    trace = true;
                    argv[i] = null;
                } else if (arg.equals("-xvaluemethods")) {
                    valueMethods = true;
                    argv[i] = null;
                }
            }
        }
        return true;
    }

    /**
     * Generate output. Any source files created which need compilation should
     * be added to the compiler environment using the addGeneratedFile(File)
     * method.
     *
     * @param env       The compiler environment
     * @param cdef      The definition for the implementation class or interface from
     *              which to generate output
     * @param destDir   The directory for the root of the package hierarchy
     *                          for generated files. May be null.
     */
    public void generate(sun.rmi.rmic.BatchEnvironment env, ClassDefinition cdef, File destDir) {

        BatchEnvironment ourEnv = (BatchEnvironment) env;
        ContextStack stack = new ContextStack(ourEnv);
        stack.setTrace(trace);

        if (valueMethods) {
            ourEnv.setParseNonConforming(true);
        }

        // Get our top level type...

        CompoundType topType = CompoundType.forCompound(cdef,stack);

        if (topType != null) {

            try {

                                // Collect up all the compound types...

                Type[] theTypes = topType.collectMatching(TM_COMPOUND);

                for (int i = 0; i < theTypes.length; i++) {

                    out.pln("\n-----------------------------------------------------------\n");

                    Type theType = theTypes[i];

                    switch (whatToPrint) {
                    case JAVA:  theType.println(out,qualified,false,false);
                        break;

                    case IDL:   theType.println(out,qualified,true,global);
                        break;

                    case BOTH:  theType.println(out,qualified,false,false);
                        theType.println(out,qualified,true,global);
                        break;

                    default:    throw new CompilerError("Unknown type!");
                    }
                }

                out.flush();

            } catch (IOException e) {
                throw new CompilerError("PrintGenerator caught " + e);
            }
        }
    }
}

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