Main.java Source code

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Here is the source code for Main.java

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//package com.java2s;
/*
 * Copyright 2011 Google Inc.
 *
 * 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.
 */

import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.HashSet;
import java.util.Set;

public class Main {
    /**
     * Finds a set of constant static byte field declarations in the class that have the given value
     * and whose name match the given pattern
     * @param cl class to search in
     * @param value value of constant static byte field declarations to match
     * @param regexPattern pattern to match against the name of the field     
     * @return a set of the names of fields, expressed as a string
     */
    private static String findConstByteInClass(Class<?> cl, byte value, String regexPattern) {
        Field[] fields = cl.getDeclaredFields();
        Set<String> fieldSet = new HashSet<String>();
        for (Field f : fields) {
            try {
                if (f.getType() == Byte.TYPE && (f.getModifiers() & Modifier.STATIC) != 0
                        && f.getName().matches(regexPattern) && f.getByte(null) == value) {
                    fieldSet.add(f.getName());
                }
            } catch (IllegalArgumentException e) {
                //  ignore
            } catch (IllegalAccessException e) {
                //  ignore
            }
        }
        return fieldSet.toString();
    }
}