Tools.java

package org.exoplatform.services.organization.idm;

import java.util.Arrays;
import java.util.Collection;

import org.gatein.common.logging.LogLevel;
import org.gatein.common.logging.Logger;

/*
 * JBoss, a division of Red Hat
 * Copyright 2010, Red Hat Middleware, LLC, and individual contributors as indicated
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

/**
 * Some helper methods
 */
public class Tools {
    public static void logMethodIn(Logger log, LogLevel level, String methodName, Object[] args) {
        try {
            StringBuilder sb = new StringBuilder();
            sb.append("Method '").append(methodName).append("' called with arguments: ");

            if (args != null) {
                for (Object arg : args) {
                    if (arg != null && arg instanceof Object[]) {
                        sb.append(Arrays.toString((Object[]) arg)).append("; ");
                    } else {
                        sb.append(arg).append("; ");
                    }
                }
            } else {
                sb.append(args);
            }

            log.log(level, sb.toString());
        } catch (Throwable t) {
            log.log(level, "Error in logging code block (not related to application code): ", t);
        }

    }

    public static void logMethodOut(Logger log, LogLevel level, String methodName, Object result) {
        try {
            StringBuilder sb = new StringBuilder();
            sb.append("Method '").append(methodName).append("' returning object: ");

            if (result != null && result instanceof Collection) {
                sb.append("Collection of size: ").append(((Collection) result).size());
            } else {
                if (result != null) {
                    sb.append("[").append(result.getClass().getCanonicalName()).append("]");
                }
                sb.append(result);
            }

            log.log(level, sb.toString());

        } catch (Throwable t) {
            log.log(level, "Error in logging code block (not related to application code): ", t);
        }
    }

}