「Jython-bugs issue1642 に対するワークアラウンド」ブログ用

ScriptService.java

package com.zaneli.script;

public interface ScriptService {

	void echo(String message);

	String getName();

	@Deprecated
	String getName(String str);

	int calculate(int num);
}

ScriptServiceWrapper.java

package com.zaneli.script;

public class ScriptServiceWrapper implements ScriptService {

	private final ScriptService delegeted;

	public ScriptServiceWrapper(ScriptService delegeted) {
		this.delegeted = delegeted;
	}

	@Override
	public void echo(String message) {
		delegeted.echo(message);
	}

	@Override
	@SuppressWarnings("deprecation")
	public String getName() {
		try {
			return delegeted.getName();
		} catch (NullPointerException e) {
			return delegeted.getName("");
			
		}
	}

	@Override
	public String getName(String str) {
		// 回避用メソッドなので直接呼べないようにする。
		throw new UnsupportedOperationException();
	}

	@Override
	public int calculate(int num) {
		return delegeted.calculate(num);
	}
}

serviceImpl.py

def echo(message):
	print(message)

def getName(value):
	# value は使用しない
	return "Python Service"

def calculate(num):
	return num - 1