PropertiesUtil.java

package org.eclipse.ecf.core.sharedobject.util;

import java.util.Map;

/**
 * @since 2.4
 */
public class PropertiesUtil {

	@SuppressWarnings("unchecked")
	public static final <T> T getProperty(Class<T> type, Map<String, ?> properties, String name, T def) {
		if (properties == null)
			return def;
		if (name == null)
			return def;
		Object o = properties.get(name);
		if (o == null)
			return def;
		if (type.isInstance(o))
			return (T) o;
		return def;
	}

	public static final String getPropertyString(Map<String, ?> properties, String name, String def) {
		return getProperty(String.class, properties, name, def);
	}

	public static final String getPropertyString(Map<String, ?> properties, String name) {
		return getPropertyString(properties, name, null);
	}

	public static final float getPropertyFloat(Map<String, ?> properties, String name, float def) {
		return getProperty(Float.class, properties, name, def);
	}

	public static final float getPropertyFloat(Map<String, ?> properties, String name) {
		return getPropertyFloat(properties, name, 0.0f);
	}

	public static final double getPropertyDouble(Map<String, ?> properties, String name, double def) {
		return getProperty(Double.class, properties, name, def);
	}

	public static final double getPropertyDouble(Map<String, ?> properties, String name) {
		return getPropertyDouble(properties, name, 0.0d);
	}

	public static final int getPropertyInteger(Map<String, ?> properties, String name, int def) {
		return getProperty(Integer.class, properties, name, def);
	}

	public static final int getPropertyInteger(Map<String, ?> properties, String name) {
		return getPropertyInteger(properties, name, 0);
	}

	public static final long getPropertyLong(Map<String, ?> properties, String name, long def) {
		return getProperty(Long.class, properties, name, def);
	}

	public static final long getPropertyLong(Map<String, ?> properties, String name) {
		return getPropertyLong(properties, name, 0l);
	}

	public static final boolean getPropertyBoolean(Map<String, ?> properties, String name, boolean def) {
		return getProperty(Boolean.class, properties, name, def);
	}

	public static final boolean getPropertyBoolean(Map<String, ?> properties, String name) {
		return getPropertyBoolean(properties, name, false);
	}

	public static final byte[] getPropertyBytes(Map<String, ?> properties, String name, byte[] def) {
		if (properties == null)
			return def;
		if (name == null)
			return def;
		Object o = properties.get(name);
		if (o instanceof byte[])
			return (byte[]) o;
		return def;
	}

	public static final byte[] getPropertyBytes(Map<String, ?> properties, String name) {
		return getPropertyBytes(properties, name, null);
	}

}