org.ow2.petals.log.formatter.BasicLogDataAppender Maven / Gradle / Ivy

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/**
 * Copyright (c) 2010-2012 EBM WebSourcing, 2012-2016 Linagora
 * 
 * This program/library 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 program/library 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 program/library; If not, see http://www.gnu.org/licenses/
 * for the GNU Lesser General Public License version 2.1.
 */
package org.ow2.petals.log.formatter;

import java.lang.reflect.Array;
import java.util.Map;

import org.ow2.petals.commons.log.FlowLogData;

public class BasicLogDataAppender implements LogDataAppender {

    /**
     * The extra parameter associated to payload content of the message exchange
     * has not to be printed.
     */
    @Override
    public boolean canAppend(final Map logData, final String dataKey, final Object value) {
        assert logData != null;
        assert dataKey != null;
        return !dataKey.equals(FlowLogData.FLOW_EXCHANGE_PROPERTY_NAME);
    }

    @Override
    public void append(final StringBuilder outBuffer, final Map logData, final String dataKey,
            final Object value) {
        outBuffer.append(dataKey).append(" = ");
        if (value == null) {
            outBuffer.append("null");
        } else if (value.getClass().isArray()) {
            outBuffer.append("'");
            int len = Array.getLength(value);
            for (int i = 0; i < len; ++i) {
                outBuffer.append(String.valueOf(Array.get(value, i)));
                if (i != len - 1)
                    outBuffer.append(", ");
            }
            outBuffer.append("'");
        } else {
            outBuffer.append("'").append(String.valueOf(value)).append("'");
        }
    }
}