SiLeBAT/FSK-Lab

package de.bund.bfr.knime.pmm.js.common;

import org.knime.core.node.InvalidSettingsException;
import org.knime.core.node.NodeSettingsRO;
import org.knime.core.node.NodeSettingsWO;

public class SettingsHelper {
    
    private SettingsHelper() { }
    
    /** Adds a String to a node settings. Ignores null. */
    public static void addString(final String key, final String val, final NodeSettingsWO settings) {
        if (val != null) {
            settings.addString(key, val);
        }
    }
    
    /** Adds an Integer to a node settings. Ignores null. */
    public static void addInt(final String key, final Integer val, final NodeSettingsWO settings) {
        if (val != null) {
            settings.addInt(key, val);
        }
    }

    /** Adds a Double to a node settings. Ignores null. */
    public static void addDouble(final String key, final Double val, final NodeSettingsWO settings) {
        if (val != null) {
            settings.addDouble(key, val);
        }
    }
    
    /** Adds a Boolean to a node settings. Ignores null. */
    public static void addBoolean(final String key, final Boolean val, final NodeSettingsWO settings) {
        if (val != null) {
            settings.addBoolean(key, val);
        }
    }
    
    /** Gets a String from a node settings. Returns null if missing. */
    public static String getString(final String key, final NodeSettingsRO settings) {
        try {
            return settings.getString(key);
        } catch(InvalidSettingsException e) {
            return null;
        }
    }

    /** Gets a Integer from a node settings. Returns null if missing. */
    public static Integer getInteger(final String key, final NodeSettingsRO settings) {
        try {
            return settings.getInt(key);
        } catch(InvalidSettingsException e) {
            return null;
        }
    }

    /** Gets a Double from a node settings. Returns null if missing. */
    public static Double getDouble(final String key, final NodeSettingsRO settings) {
        try {
            return settings.getDouble(key);
        } catch(InvalidSettingsException e) {
            return null;
        }
    }
    
    /** Gets a Boolean from a node settings. Returns null if missing. */
    public static Boolean getBoolean(final String key, final NodeSettingsRO settings) {
        try {
            return settings.getBoolean(key);
        } catch(InvalidSettingsException e) {
            return null;
        }
    }
}