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package com.thoughtworks.qdox.model;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

public final class JavaModelUtils
{

    private JavaModelUtils()
    {
        // hide constructor for utility class
    }
    
    /**
     * 
     * Try to resolve the class by the {@code name}, either relative from {@code cls} 
     * as the fully qualified name.
     * 
     * Note:the name must match the {@code cls} itself or one of its nested classes.
     * 
     * @param cls the declaring class
     * @param name the name
     * @return the matching class, otherwise null
     * @see JavaClass#getJavaClassLibrary()
     */
    public static JavaClass getClassByName( JavaClass cls, String name )
    {
        JavaClass result = null;
        if ( cls.getBinaryName().equals( name ) )
        {
            result = cls;
        }
        else if ( cls.getName().equals( name ) )
        {
            result = cls;
        }
        else
        {
            for ( JavaClass innerCls : cls.getNestedClasses() )
            {
                result = getClassByName( innerCls, name );
                if ( result != null )
                {
                    break;
                }
            }
        }
        return result;
    }
}