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package org.openbase.jul.processing;

/*
 * #%L
 * JUL Processing Default
 * %%
 * Copyright (C) 2015 - 2022 openbase.org
 * %%
 * This program 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.
 * 
 * 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 General Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * .
 * #L%
 */
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.TreeMap;
import org.openbase.jul.exception.NotAvailableException;

/**
 *
 * @author Divine Threepwood
 */
public class VariableStore implements VariableProvider {

    private final String name;
    private final Map variableMap;

    public VariableStore(final String name) {
        this.name = name;
        this.variableMap = new TreeMap<>();
    }

    @Override
    public String getName() {
        return name;
    }

    /**
     * Resolves the value for the given key.
     *
     * @param key
     * @return
     * @throws NotAvailableException
     */
    @Override
    public String getValue(String key) throws NotAvailableException {
        return variableMap.get(key);
    }

    /**
     * Method resolves all variables whose name contains the given identifier.
     *
     * @param variableContains the identifier to select the variables.
     * @return a map of the variable name and its current value.
     */
    @Override
    public Map getValues(final String variableContains)  {
        final Map variableSelection = new HashMap<>();
        for (Entry entry : variableMap.entrySet()) {
            if (entry.getKey().contains(variableContains)) {
                if (!entry.getValue().isEmpty()) {
                    variableSelection.put(entry.getKey(), entry.getValue());
                }
            }
        }
        return variableSelection;
    }

    /**
     * Stores the key value pair into the variable Store.
     *
     * @param key
     * @param value
     */
    public void store(final String key, final String value) {
        variableMap.put(key, value);
    }
}