/*

 * Copyright (c) 2012, 2014, 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

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 */

package com.sun.tools.sjavac.comp;

import java.util.StringTokenizer;

import com.sun.tools.javac.main.JavaCompiler;

import com.sun.tools.javac.util.Context;

import com.sun.tools.javac.code.Symbol.ClassSymbol;

/** Subclass to Resolve that overrides collect.

 *

 *  <p><b>This is NOT part of any supported API.

 *  If you write code that depends on this, you do so at your own risk.

 *  This code and its internal interfaces are subject to change or

 *  deletion without notice.</b>

 */

public class JavaCompilerWithDeps extends JavaCompiler {

    /** The dependency database

     */

    protected Dependencies deps;

    protected SjavacErrorHandler errorHandler;

    public JavaCompilerWithDeps(Context context, SjavacErrorHandler eh) {

        super(context);

        deps = Dependencies.instance(context);

        errorHandler = eh;

        needRootClasses = true;

    }

    public static void preRegister(Context context, final SjavacErrorHandler eh) {

        context.put(compilerKey, new Context.Factory<JavaCompiler>() {

            public JavaCompiler make(Context c) {

                JavaCompiler instance = new JavaCompilerWithDeps(c, eh);

                c.put(JavaCompiler.class, instance);

                return instance;

            }

        });

    }

    /** Collect the public apis of classes supplied explicitly for compilation.

     * @param sym The class to visit.

     */

    @Override

    public void reportPublicApi(ClassSymbol sym) {

        // The next test will catch when source files are located in the wrong directory!

        // This ought to be moved into javac as a new warning, or perhaps as part

        // of the auxiliary class warning.

        // For example if sun.swing.BeanInfoUtils

        // is in fact stored in: /mybuild/jdk/gensrc/javax/swing/beaninfo/BeanInfoUtils.java

        // We do not need to test that BeanInfoUtils is stored in a file named BeanInfoUtils

        // since this is checked earlier.

        if (sym.sourcefile != null) {

            // Rewrite sun.swing.BeanInfoUtils into /sun/swing/

            StringBuilder pathb = new StringBuilder();

            StringTokenizer qn = new StringTokenizer(sym.packge().toString(), ".");

            boolean first = true;

            while (qn.hasMoreTokens()) {

                String o = qn.nextToken();

                pathb.append("/");

                pathb.append(o);

                first = false;

            }

            pathb.append("/");

            String path = pathb.toString();

            // Now cut the uri to be: file:///mybuild/jdk/gensrc/javax/swing/beaninfo/

            String p = sym.sourcefile.toUri().getPath();

            // Do not use File.separatorChar here, a URI always uses slashes /.

            int i = p.lastIndexOf("/");

            String pp = p.substring(0,i+1);

            // Now check if the truncated uri ends with the path. (It does not == failure!)

            if (path.length() > 0 && !path.equals("/unnamed package/") && !pp.endsWith(path)) {

                errorHandler.logError("Error: The source file "+sym.sourcefile.getName()+

                                        " is located in the wrong package directory, because it contains the class "+

                                        sym.getQualifiedName());

            }

        }

        deps.visitPubapi(sym);

    }

}