src.java.com.ctc.wstx.util.ArgUtil Maven / Gradle / Ivy
package com.ctc.wstx.util;
/**
* Simple static utility class that contains (static) utility methods useful
* when parsing non-typesafe arguments (String-only configuration, command
* line args).
*/
public final class ArgUtil
{
private ArgUtil() { }
public static boolean convertToBoolean(String prop, Object value)
{
if (value == null) {
return false;
}
if (value instanceof Boolean) {
return ((Boolean) value).booleanValue();
}
if (value instanceof String) {
String str = (String) value;
if (str.equalsIgnoreCase("false")) {
return false;
}
if (str.equalsIgnoreCase("true")) {
return true;
}
throw new IllegalArgumentException("Invalid String value for property '"+prop+"': expected Boolean value.");
}
throw new IllegalArgumentException("Invalid value type ("+value.getClass()+") for property '"+prop+"': expected Boolean value.");
}
public static int convertToInt(String prop, Object value, int minValue)
{
int i;
if (value == null) {
i = 0;
} else if (value instanceof Number) {
i = ((Number) value).intValue();
} else if (value instanceof String) {
try {
i = Integer.parseInt((String) value);
} catch (NumberFormatException nex) {
throw new IllegalArgumentException("Invalid String value for property '"+prop+"': expected a number (Integer).");
}
} else {
throw new IllegalArgumentException("Invalid value type ("+value.getClass()+") for property '"+prop+"': expected Integer value.");
}
if (i < minValue) {
throw new IllegalArgumentException("Invalid numeric value ("+i
+") for property '"+prop
+"': minimum is "+minValue+".");
}
return i;
}
}