release13.07/framework/base/src/org/ofbiz/base/concurrent/test/TTLCachedObjectTest.java

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package org.ofbiz.base.concurrent.test;

import org.ofbiz.base.concurrent.GeneratedResult;
import org.ofbiz.base.concurrent.TTLCachedObject;
import org.ofbiz.base.concurrent.TTLObject;
import org.ofbiz.base.lang.SourceMonitored;

@SourceMonitored
public class TTLCachedObjectTest extends TTLObjectTest {
    static {
        TTLObject.setDefaultTTLForClass(TTLCachedObjectTestTTLObject.class, 100);
    }

    public TTLCachedObjectTest(String name) {
        super(name, true);
    }

    protected final class TTLCachedObjectTestTTLObject extends TTLCachedObject<String> {
        protected long dataTimestamp = NOT_EXISTANT_TIMESTAMP;
        protected String data = "first";

        @Override
        protected long getTimestamp(String old) throws Exception {
            return dataTimestamp;
        }

        @Override
        protected GeneratedResult<String> generate(String old, int serial) throws Exception {
            return new GeneratedResult<String>(dataTimestamp, data);
        }
    }

    public void testTTLCachedObject() throws Exception {
        TTLCachedObjectTestTTLObject object = new TTLCachedObjectTestTTLObject();
        assertNull("initial non-existant value", object.getObject());
        assertEquals("initial non-existant timestamp", TTLCachedObject.NOT_EXISTANT_TIMESTAMP, object.getTimestamp());
        object.dataTimestamp = 1;
        assertNull("initial no-refresh value", object.getObject());
        assertEquals("initial no-refresh timestamp", TTLCachedObject.NOT_EXISTANT_TIMESTAMP, object.getTimestamp());
        object.refresh();
        assertEquals("first value", "first", object.getObject());
        assertEquals("first timestamp", 1, object.getTimestamp());
        object.data = "second";
        object.refresh();
        assertEquals("not-modified value", "first", object.getObject());
        assertEquals("not-modified timestamp", 1, object.getTimestamp());
        object.dataTimestamp = 2;
        assertEquals("cached modified value", "first", object.getObject());
        assertEquals("cached modified timestamp", 1, object.getTimestamp());
        object.refresh();
        assertEquals("refresh second value", "second", object.getObject());
        assertEquals("refresh second timestamp", 2, object.getTimestamp());
        object.dataTimestamp = TTLCachedObject.NOT_EXISTANT_TIMESTAMP;
        object.refresh();
        assertNull("refresh non-existant value", object.getObject());
        assertEquals("refresh non-existant timestamp", TTLCachedObject.NOT_EXISTANT_TIMESTAMP, object.getTimestamp());
    }
}