Package org.apache.marmotta.ldcache.api

Examples of org.apache.marmotta.ldcache.api.LDCachingConnection.begin()

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        Date now = new Date();

        try {
            LDCachingConnection con = backend.getCacheConnection(resource.stringValue());
            try {
                con.begin();

                CacheEntry entry = con.getCacheEntry(resource);
                if(entry.getExpiryDate().getTime() > now.getTime()) {
                    entry.setExpiryDate(now);
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        resourceLocks.lock(resource.stringValue());
        try {
            LDCachingConnection cacheConnection = backend.getCacheConnection(resource.stringValue());
            CacheEntry entry = null;
            try {
                cacheConnection.begin();

                // 2. check whether the resource has a cache entry; if no, goto 4
                entry = cacheConnection.getCacheEntry(resource);

                // commit/close the connection, the retrieveResource method takes too long to hold the DB connection open
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                if(response != null) {
                    log.info("refreshed resource {}",resource);

                    // obtain a new cache connection, since we closed the original connection above
                    LDCachingConnection cacheConnection1 = backend.getCacheConnection(resource.stringValue());
                    cacheConnection1.begin();
                    try {
                        URI subject = cacheConnection1.getValueFactory().createURI(resource.stringValue());

                        RepositoryConnection respConnection = response.getTriples().getConnection();
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                    newEntry.setUpdateCount(1);
                }
                newEntry.setTripleCount(0);

                LDCachingConnection cacheConnection2 = backend.getCacheConnection(resource.stringValue());
                cacheConnection2.begin();
                try {
                    cacheConnection2.removeCacheEntry(resource);
                    cacheConnection2.addCacheEntry(resource, newEntry);

                    cacheConnection2.commit();
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                        next.setExpiryDate(now);

                        try {
                            LDCachingConnection con = backend.getCacheConnection(next.getResource().stringValue());
                            try {
                                con.begin();

                                con.removeCacheEntry(next.getResource());
                                con.addCacheEntry(next.getResource(), next);

                                con.commit();
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     */
    @Test
    public void testStoreEntries() throws Exception {
        LDCachingConnection con = backend.getCacheConnection("http://localhost/resource/1");
        try {
            con.begin();

            URI subject1     = con.getValueFactory().createURI("http://localhost/resource/"+ RandomStringUtils.randomAlphanumeric(8));
            URI subject2     = con.getValueFactory().createURI("http://localhost/resource/"+ RandomStringUtils.randomAlphanumeric(8));
            Literal object1  = con.getValueFactory().createLiteral(RandomStringUtils.random(64));
            Literal object2  = con.getValueFactory().createLiteral(RandomStringUtils.random(64));
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            con.add(stmt1);
            con.add(stmt2);

            con.commit();

            con.begin();
            CacheEntry entry1 = new CacheEntry();
            entry1.setExpiryDate(new Date(System.currentTimeMillis()+1000*60));
            entry1.setLastRetrieved(new Date());
            entry1.setUpdateCount(1);
            entry1.setResource(subject1);
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            Assert.assertTrue(backend.isCached(subject1.stringValue()));
            Assert.assertFalse(backend.isCached(subject2.stringValue()));
            Assert.assertEquals(1,asList(backend.listCacheEntries()).size());
            Assert.assertEquals(0,asList(backend.listExpiredEntries()).size());

            con.begin();
            CacheEntry entry2 = new CacheEntry();
            entry2.setExpiryDate(new Date(System.currentTimeMillis() - 1000 * 60));
            entry2.setLastRetrieved(new Date());
            entry2.setUpdateCount(1);
            entry2.setResource(subject2);
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            Assert.assertTrue(backend.isCached(subject1.stringValue()));
            Assert.assertTrue(backend.isCached(subject2.stringValue()));
            Assert.assertEquals(2,asList(backend.listCacheEntries()).size());
            Assert.assertEquals(1,asList(backend.listExpiredEntries()).size());

            con.begin();
            con.removeCacheEntry(subject1);
            con.commit();

            Assert.assertFalse(backend.isCached(subject1.stringValue()));
            Assert.assertTrue(backend.isCached(subject2.stringValue()));
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     */
    @Test
    public void testStoreEntries() throws Exception {
        LDCachingConnection con = backend.getCacheConnection("http://localhost/resource/1");
        try {
            con.begin();

            URI subject1     = con.getValueFactory().createURI("http://localhost/resource/"+ RandomStringUtils.randomAlphanumeric(8));
            URI subject2     = con.getValueFactory().createURI("http://localhost/resource/"+ RandomStringUtils.randomAlphanumeric(8));
            Literal object1  = con.getValueFactory().createLiteral(RandomStringUtils.random(64));
            Literal object2  = con.getValueFactory().createLiteral(RandomStringUtils.random(64));
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