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/* SourceRmicCompiler.java -- RMI stub generator for java.rmi.*

   Copyright (C) 2006 Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2, or (at your option)

any later version.

GNU Classpath 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 for more details.

You should have received a copy of the GNU General Public License

along with GNU Classpath; see the file COPYING.  If not, write to the

Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301 USA.

Linking this library statically or dynamically with other modules is

making a combined work based on this library.  Thus, the terms and

conditions of the GNU General Public License cover the whole

combination.

As a special exception, the copyright holders of this library give you

permission to link this library with independent modules to produce an

executable, regardless of the license terms of these independent

modules, and to copy and distribute the resulting executable under

terms of your choice, provided that you also meet, for each linked

independent module, the terms and conditions of the license of that

module.  An independent module is a module which is not derived from

or based on this library.  If you modify this library, you may extend

this exception to your version of the library, but you are not

obligated to do so.  If you do not wish to do so, delete this

exception statement from your version. */

package gnu.classpath.tools.rmic;

import java.lang.reflect.Method;

import java.io.File;

import java.util.Iterator;

import gnu.classpath.tools.rmic.AbstractMethodGenerator;

/**

 * RMI stub source code generator, required to support java.rmi.*

 *

 * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)

 */

public class SourceRmicCompiler extends SourceGiopRmicCompiler

{

  /**

   * If true, the zero size object array is declared in the stub to reduce

   * garbage generation.

   */

  public boolean addZeroSizeObjecArray;

  /**

   * Generate a RMI stub.

   *

   * @return the string, containing the text of the generated stub.

   */

  public String generateStub()

  {

    String template = getResource("Stub_12.jav");

    // Generate methods.

    StringBuilder b = new StringBuilder();

    Iterator iter = methods.iterator();

    while (iter.hasNext())

      {

        RmiMethodGenerator m = (RmiMethodGenerator) iter.next();

        b.append(m.generateStubMethod());

      }

    vars.put("#stub_methods", b.toString());

    vars.put("#imports", getImportStatements());

    vars.put("#interfaces", getAllInterfaces());

    vars.put("#stub_method_declarations", getStubMethodDeclarations());

    vars.put("#stub_method_initializations", getStubMethodInitializations());

    if (addZeroSizeObjecArray)

      {

        vars.put("#zeroSizeObjecArray",

               "private static final Object[] NO_ARGS = new Object[0];");

        vars.put("#zeroSizeClassArray",

               "final Class[]  NO_ARGSc = new Class[0];");

      }

    else

      {

        vars.put("#zeroSizeObjecArray","");

        vars.put("#zeroSizeClassArray","");

      }

    String output = replaceAll(template, vars);

    return output;

  }

  /**

   * Create a method generator, applicable for RMI stub methods.

   */

  protected AbstractMethodGenerator createMethodGenerator(Method m)

  {

    return new RmiMethodGenerator(m, this);

  }

  /**

   * Get the stub method declarations.

   */

  public String getStubMethodDeclarations()

  {

    StringBuilder b = new StringBuilder();

    Iterator iter = methods.iterator();

    while (iter.hasNext())

      {

        RmiMethodGenerator method = (RmiMethodGenerator) iter.next();

        b.append("    ");

        b.append("private static final Method met_");

        b.append(method.method.getName());

        b.append(';');

        if (iter.hasNext())

          b.append('\n');

      }

    return b.toString();

  }

  /**

   * Get stub method initializations. These must be done in a try-catch

   * statement to catch {@link NoSuchMethodException}.

   */

  public String getStubMethodInitializations()

  {

    StringBuilder b = new StringBuilder();

    Iterator iter = methods.iterator();

    while (iter.hasNext())

      {

        RmiMethodGenerator method = (RmiMethodGenerator) iter.next();

        b.append("             ");

        b.append("met_");

        b.append(method.method.getName());

        b.append(" =\n               ");

        b.append(name(method.method.getDeclaringClass()));

        b.append(".class.getMethod(");

        b.append('"');

        b.append(method.method.getName());

        b.append("\", ");

        if (method.method.getParameterTypes().length == 0)

          b.append("NO_ARGSc);");

        else

          {

            b.append("new Class[]\n                 {\n                   ");

            b.append(method.getArgListAsClassArray());

            b.append("\n                 }");

            b.append(");");

          }

        b.append('\n');

      }

    return b.toString();

  }

  /**

   * Prepare for the compilation of the next class.

   */

  public void reset()

  {

    addZeroSizeObjecArray = false;

    super.reset();

  }

  /**

   * Additional processing of the stub name (nothing to do for JRMP stubs).

   */

  public String convertStubName(String name)

  {

    return name;

  }

  /**

   * Override to do nothing.

   */

  protected boolean outputTie(File fw, Class c)

  {

    return true;

  }

}