org.pentaho.platform.plugin.services.pluginmgr.PluginMessageLogger.java Source code

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Here is the source code for org.pentaho.platform.plugin.services.pluginmgr.PluginMessageLogger.java

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/*!
 * This program is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
 * Foundation.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
 * or from the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * This program 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.
 *
 * Copyright (c) 2002-2013 Pentaho Corporation..  All rights reserved.
 */

package org.pentaho.platform.plugin.services.pluginmgr;

import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.collections.Predicate;

import java.util.ArrayList;
import java.util.List;

public class PluginMessageLogger {
    private static ThreadLocal<List<String>> messages = new ThreadLocal<List<String>>() {
        protected List<String> initialValue() {
            return new ArrayList<String>();
        }
    };

    public static void clear() {
        messages.get().clear();
    }

    public static void add(String message) {
        messages.get().add(message);
    }

    public static List<String> getAll() {
        return messages.get();
    }

    public static int count(final String messagePrefix) {
        return CollectionUtils.countMatches(messages.get(), new Predicate() {

            public boolean evaluate(Object object) {
                return ((String) object).startsWith(messagePrefix);
            }

        });
    }

    public static String prettyPrint() {
        StringBuilder builder = new StringBuilder();
        for (String msg : messages.get()) {
            builder.append(msg);
            builder.append('\n');
        }
        return builder.toString();
    }

}