/*
 * @(#)FileMetadata.java
 *
 * Copyright 2009 Instituto Superior Tecnico
 * Founding Authors: Shezad Anavarali
 * 
 *      https://fenix-ashes.ist.utl.pt/
 * 
 *   This file is part of the File Support Module.
 *
 *   The File Support Module 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 
 *   3 of the License, or (at your option) any later version.
 *
 *   The File Support Module 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 the File Support Module. If not, see <http://www.gnu.org/licenses/>.
 * 
 */
package module.fileSupport.metadata.parsing;

import java.util.HashMap;
import java.util.Set;

/**
 * 
 * @author Paulo Abrantes
 * 
 */
public class FileMetadata {

    private HashMap<String, String> metaData;

    public FileMetadata() {
        this.metaData = new HashMap<String, String>();
    }

    public void addMetaData(String propertyName, String value) {
        String currentValue = this.metaData.get(propertyName);
        if (currentValue == null) {
            this.metaData.put(propertyName, value);
        } else {
            StringBuilder builder = new StringBuilder(currentValue);
            builder.append(" ");
            builder.append(value);
            this.metaData.remove(propertyName);
            this.metaData.put(propertyName, builder.toString());
        }

    }

    public void addMetaData(FileMetadata data) {
        metaData.putAll(data.metaData);
    }

    public HashMap<String, String> getMetaDataMap() {
        return this.metaData;
    }

    public boolean hasContent() {
        return !this.metaData.isEmpty();
    }

    public Set<String> keySet() {
        return this.metaData.keySet();
    }

    public String getObject(String propertyName) {
        return this.metaData.get(propertyName);
    }
}