org.eclipse.smila.management.jmx.client.helpers.OutWriter.java Source code

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Here is the source code for org.eclipse.smila.management.jmx.client.helpers.OutWriter.java

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/***********************************************************************************************************************
 * Copyright (c) 2008 empolis GmbH and brox IT Solutions GmbH. All rights reserved. This program and the accompanying
 * materials are made available under the terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors: Ivan Churkin (brox IT Solutions GmbH) - initial creator
 **********************************************************************************************************************/
package org.eclipse.smila.management.jmx.client.helpers;

import java.util.Collection;
import java.util.Iterator;

import org.apache.commons.logging.Log;

/**
 * The Class OutWriter.
 */
public final class OutWriter {

    /**
     * Private constructor to avoid instatiation.
     */
    private OutWriter() {
    }

    /**
     * Write out.
     * 
     * @param str
     *          the str
     */
    public static void writeOut(final String str) {
        System.out.println(str);
    }

    /**
     * Write.
     * 
     * @param echo
     *          the echo
     * @param log
     *          the log
     */
    public static void write(final String echo, final Log log) {
        log.info(echo);
    }

    /**
     * Write.
     * 
     * @param object
     *          the object
     * @param echo
     *          the echo
     * @param log
     *          the log
     */
    public static void write(final String echo, final Object object, final Log log) {
        if (object == null) {
            writeLine(String.format("%s... %s.", echo, "NULL."), log);
            return;
        }
        // log result;
        if (object.getClass().isArray()) {
            final Object[] objectArray = (Object[]) object;
            int n = 0;
            if (objectArray.length == 0) {
                writeLine(String.format("%s... NO.", echo), log);
            } else {
                writeLine(echo, log);
                for (final Object o : objectArray) {
                    writeItemList(++n, o, log);
                }
            }
        } else if (Collection.class.isAssignableFrom(object.getClass())) {
            final Collection collection = (Collection) object;
            if (collection.isEmpty()) {
                writeLine(String.format("%s... NO.", echo), log);
            } else {
                final Iterator it = collection.iterator();
                int n = 0;
                writeLine(echo, log);
                while (it.hasNext()) {
                    writeItemList(++n, it.next(), log);
                }
            }
        } else {
            writeLine(String.format("%s... %s.", echo, object), log);
        }
    }

    /**
     * Write item list.
     * 
     * @param n
     *          the n
     * @param o
     *          the o
     * @param log
     *          the log
     */
    private static void writeItemList(final int n, final Object o, final Log log) {
        log.info(String.format("%d. %s", n, o));
    }

    /**
     * Write line.
     * 
     * @param o
     *          the o
     * @param log
     *          the log
     */
    private static void writeLine(final Object o, final Log log) {
        log.info(o);
    }
}