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/*
 * Copyright (c) 2005, 2006, 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.
 */

package com.redhat.ceylon.javax.tools;

import java.io.IOException;
import java.net.URI;
import java.util.Iterator;
import java.util.Set;

import com.redhat.ceylon.javax.tools.FileObject;
import com.redhat.ceylon.javax.tools.JavaFileManager;
import com.redhat.ceylon.javax.tools.JavaFileObject;
import com.redhat.ceylon.javax.tools.JavaFileManager.Location;

import com.redhat.ceylon.javax.tools.JavaFileObject.Kind;

/**
 * Forwards calls to a given file manager.  Subclasses of this class
 * might override some of these methods and might also provide
 * additional fields and methods.
 *
 * @param  the kind of file manager forwarded to by this object
 * @author Peter von der Ahé
 * @since 1.6
 */
public class ForwardingJavaFileManager implements JavaFileManager {

    /**
     * The file manager which all methods are delegated to.
     */
    protected final M fileManager;

    /**
     * Creates a new instance of ForwardingJavaFileManager.
     * @param fileManager delegate to this file manager
     */
    protected ForwardingJavaFileManager(M fileManager) {
        fileManager.getClass(); // null check
        this.fileManager = fileManager;
    }

    /**
     * @throws SecurityException {@inheritDoc}
     * @throws IllegalStateException {@inheritDoc}
     */
    public ClassLoader getClassLoader(Location location) {
        return fileManager.getClassLoader(location);
    }

    /**
     * @throws IOException {@inheritDoc}
     * @throws IllegalStateException {@inheritDoc}
     */
    public Iterable list(Location location,
                                         String packageName,
                                         Set kinds,
                                         boolean recurse)
        throws IOException
    {
        return fileManager.list(location, packageName, kinds, recurse);
    }

    /**
     * @throws IllegalStateException {@inheritDoc}
     */
    public String inferBinaryName(Location location, JavaFileObject file) {
        return fileManager.inferBinaryName(location, file);
    }

    /**
     * @throws IllegalArgumentException {@inheritDoc}
     */
    public boolean isSameFile(FileObject a, FileObject b) {
        return fileManager.isSameFile(a, b);
    }

    /**
     * @throws IllegalArgumentException {@inheritDoc}
     * @throws IllegalStateException {@inheritDoc}
     */
    public boolean handleOption(String current, Iterator remaining) {
        return fileManager.handleOption(current, remaining);
    }

    public boolean hasLocation(Location location) {
        return fileManager.hasLocation(location);
    }

    public int isSupportedOption(String option) {
        return fileManager.isSupportedOption(option);
    }

    /**
     * @throws IllegalArgumentException {@inheritDoc}
     * @throws IllegalStateException {@inheritDoc}
     */
    public JavaFileObject getJavaFileForInput(Location location,
                                              String className,
                                              Kind kind)
        throws IOException
    {
        return fileManager.getJavaFileForInput(location, className, kind);
    }

    /**
     * @throws IllegalArgumentException {@inheritDoc}
     * @throws IllegalStateException {@inheritDoc}
     */
    public JavaFileObject getJavaFileForOutput(Location location,
                                               String className,
                                               Kind kind,
                                               FileObject sibling)
        throws IOException
    {
        return fileManager.getJavaFileForOutput(location, className, kind, sibling);
    }

    /**
     * @throws IllegalArgumentException {@inheritDoc}
     * @throws IllegalStateException {@inheritDoc}
     */
    public FileObject getFileForInput(Location location,
                                      String packageName,
                                      String relativeName)
        throws IOException
    {
        return fileManager.getFileForInput(location, packageName, relativeName);
    }

    /**
     * @throws IllegalArgumentException {@inheritDoc}
     * @throws IllegalStateException {@inheritDoc}
     */
    public FileObject getFileForOutput(Location location,
                                       String packageName,
                                       String relativeName,
                                       FileObject sibling)
        throws IOException
    {
        return fileManager.getFileForOutput(location, packageName, relativeName, sibling);
    }

    public void flush() throws IOException {
        fileManager.flush();
    }

    public void close() throws IOException {
        fileManager.close();
    }
}