/*
 * Copyright (c) 2008, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */
package com.sun.jaxb_tck.lib;

import java.io.PrintStream;

/**
 * Wrapper to schema compiler
 *
 * @author  Leonid Kuskov
 * @version 1.14
 */
public class Xjc extends CompositeInvoker{
    
    private boolean isSetIOAllowed;

    {
        SecurityManager sm = System.getSecurityManager();
        if (sm == null) {
            isSetIOAllowed = true;
        } else {
            try {
                sm.checkPermission(new RuntimePermission("setIO"));
                isSetIOAllowed = true;
            } catch (SecurityException e) {
                isSetIOAllowed = false;
            }
        }
    }
    
	/**
	 * ctor
	 */
	public Xjc(String[] args) {
	    super(args);
	}

	/**
     * Processes command line arguments.
     */
    @Override 
    public void processArguments() throws Invoker.ArgumentException {
        boolean isEmptyOut = new Arguments(args).contains(EMPTY_OUT_PARAMETER);
        add(new SchemaCompilerInvoker(args));
        if(!isEmptyOut) {
            add(new JavacInvoker(args));
        }
    }

    /**
     *  Performs the schema generation
     */
    @Override 
    protected int execute(PrintStream out, PrintStream err) throws Exception 
    {
        PrintStream oldSystemOut = System.out;
        PrintStream oldSystemErr = System.err;
        try {
            if (isSetIOAllowed) {
                System.setOut(out);
                System.setErr(err);
            }
            return super.execute(out, err);
        } finally {
            err.flush();
            out.flush();
            if (isSetIOAllowed) {
                System.setOut(oldSystemOut);
                System.setErr(oldSystemErr);
                oldSystemOut = null;
                oldSystemErr = null;
            }
        }
    }
}
