Java Class Name Extract extractClassName(String methodName)

Description

Extracts the class name from a method name.

License

Apache License

Parameter

Parameter	Description
methodName	full method name from which the class name should be extracted

Return

full class name

Declaration

public static String extractClassName(String methodName) 

Method Source Code

//package com.java2s;
/**/*w  w  w. ja va2 s .c  o m*/
 * Copyright 2014 SAP AG
 *
 * Licensed 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 class Main {
    /**
     * Extracts the class name from a method name.
     * 
     * @param methodName
     *            full method name from which the class name should be extracted
     * @return full class name
     */
    public static String extractClassName(String methodName) {
        try {
            // cut argument list
            String className = methodName.substring(0,
                    methodName.indexOf('('));
            // cut methodName
            className = className.substring(0, className.lastIndexOf('.'));
            // cut modifier
            if (className.indexOf(' ') >= 0) {
                className = className.substring(
                        className.lastIndexOf(' ') + 1, className.length());
            }
            return className;
        } catch (Exception e) {
            throw new IllegalArgumentException(
                    "Invalid method name format!");
        }
    }
}

Related

1. extractClassName(final String fullClassName)
2. extractClassName(String fullClassName)
3. extractClassName(String fullElement)
4. extractClassName(String fullyQualifiedClassName)
5. extractClassName(String javaSource)
6. extractClassName(String qualifiedName)
7. extractClassNameFromArray(final String arrayName)
8. extractClassNames(Class[] classArray)
9. extractClassNameWithoutPackage(String className)