Examples with JsonReader javax.json.JsonReader used on opensource projects

Example 16 with JsonReader

use of javax.json.JsonReader in project sling by apache.

the class SimpleDistributionQueueProvider method enableQueueProcessing.

public void enableQueueProcessing(@Nonnull DistributionQueueProcessor queueProcessor, String... queueNames) {
    if (checkpoint) {
        // recover from checkpoints
        log.debug("recovering from checkpoints if needed");
        for (final String queueName : queueNames) {
            log.debug("recovering for queue {}", queueName);
            DistributionQueue queue = getQueue(queueName);
            FilenameFilter filenameFilter = new FilenameFilter() {

                @Override
                public boolean accept(File file, String name) {
                    return name.equals(queueName + "-checkpoint");
                }
            };
            for (File qf : checkpointDirectory.listFiles(filenameFilter)) {
                log.info("recovering from checkpoint {}", qf);
                try {
                    LineIterator lineIterator = IOUtils.lineIterator(new FileReader(qf));
                    while (lineIterator.hasNext()) {
                        String s = lineIterator.nextLine();
                        String[] split = s.split(" ");
                        String id = split[0];
                        String infoString = split[1];
                        Map<String, Object> info = new HashMap<String, Object>();
                        JsonReader reader = Json.createReader(new StringReader(infoString));
                        JsonObject jsonObject = reader.readObject();
                        for (Map.Entry<String, JsonValue> entry : jsonObject.entrySet()) {
                            if (entry.getValue().getValueType().equals(JsonValue.ValueType.ARRAY)) {
                                JsonArray value = jsonObject.getJsonArray(entry.getKey());
                                String[] a = new String[value.size()];
                                for (int i = 0; i < a.length; i++) {
                                    a[i] = value.getString(i);
                                }
                                info.put(entry.getKey(), a);
                            } else if (JsonValue.NULL.equals(entry.getValue())) {
                                info.put(entry.getKey(), null);
                            } else {
                                info.put(entry.getKey(), ((JsonString) entry.getValue()).getString());
                            }
                        }
                        queue.add(new DistributionQueueItem(id, info));
                    }
                    log.info("recovered {} items from queue {}", queue.getStatus().getItemsCount(), queueName);
                } catch (FileNotFoundException e) {
                    log.warn("could not read checkpoint file {}", qf.getAbsolutePath());
                } catch (JsonException e) {
                    log.warn("could not parse info from checkpoint file {}", qf.getAbsolutePath());
                }
            }
        }
        // enable checkpointing
        for (String queueName : queueNames) {
            ScheduleOptions options = scheduler.NOW(-1, 15).canRunConcurrently(false).name(getJobName(queueName + "-checkpoint"));
            scheduler.schedule(new SimpleDistributionQueueCheckpoint(getQueue(queueName), checkpointDirectory), options);
        }
    }
    // enable processing
    for (String queueName : queueNames) {
        ScheduleOptions options = scheduler.NOW(-1, 1).canRunConcurrently(false).name(getJobName(queueName));
        scheduler.schedule(new SimpleDistributionQueueProcessor(getQueue(queueName), queueProcessor), options);
    }
}

Example 17 with JsonReader

use of javax.json.JsonReader in project javaee7-samples by javaee-samples.

the class JsonReaderFromReaderTest method testNestedStructure.

@Test
public void testNestedStructure() throws JSONException {
    JsonReader jsonReader = Json.createReader(new StringReader("{" + "  \"title\":\"The Matrix\"," + "  \"year\":1999," + "  \"cast\":[" + "    \"Keanu Reaves\"," + "    \"Laurence Fishburne\"," + "    \"Carrie-Anne Moss\"" + "  ]" + "}"));
    JsonObject json = jsonReader.readObject();
    assertNotNull(json);
    assertFalse(json.isEmpty());
    assertTrue(json.containsKey("title"));
    assertEquals("The Matrix", json.getString("title"));
    assertTrue(json.containsKey("year"));
    assertEquals(1999, json.getInt("year"));
    assertTrue(json.containsKey("cast"));
    JsonArray jsonArr = json.getJsonArray("cast");
    assertNotNull(jsonArr);
    assertEquals(3, jsonArr.size());
    JSONAssert.assertEquals("[" + "    \"Keanu Reaves\"," + "    \"Laurence Fishburne\"," + "    \"Carrie-Anne Moss\"" + "  ]", jsonArr.toString(), JSONCompareMode.STRICT);
}

Example 18 with JsonReader

use of javax.json.JsonReader in project javaee7-samples by javaee-samples.

the class JsonReaderFromStreamTest method testSimpleObjectWithTwoElements.

@Test
public void testSimpleObjectWithTwoElements() throws JSONException {
    JsonReader jsonReader = Json.createReader(Thread.currentThread().getContextClassLoader().getResourceAsStream("/2.json"));
    JsonObject json = jsonReader.readObject();
    assertNotNull(json);
    assertFalse(json.isEmpty());
    assertTrue(json.containsKey("apple"));
    assertEquals("red", json.getString("apple"));
    assertTrue(json.containsKey("banana"));
    assertEquals("yellow", json.getString("banana"));
}

Example 19 with JsonReader

use of javax.json.JsonReader in project javaee7-samples by javaee-samples.

the class JsonReaderFromStreamTest method testNestedStructure.

@Test
public void testNestedStructure() throws JSONException {
    JsonReader jsonReader = Json.createReader(Thread.currentThread().getContextClassLoader().getResourceAsStream("/4.json"));
    JsonObject json = jsonReader.readObject();
    assertNotNull(json);
    assertFalse(json.isEmpty());
    assertTrue(json.containsKey("title"));
    assertEquals("The Matrix", json.getString("title"));
    assertTrue(json.containsKey("year"));
    assertEquals(1999, json.getInt("year"));
    assertTrue(json.containsKey("cast"));
    JsonArray jsonArr = json.getJsonArray("cast");
    assertNotNull(jsonArr);
    assertEquals(3, jsonArr.size());
    JSONAssert.assertEquals("[" + "    \"Keanu Reaves\"," + "    \"Laurence Fishburne\"," + "    \"Carrie-Anne Moss\"" + "  ]", jsonArr.toString(), JSONCompareMode.STRICT);
}

Example 20 with JsonReader

use of javax.json.JsonReader in project javaee7-samples by javaee-samples.

the class JsonReaderFromStreamTest method testEmptyObject.

@Test
public void testEmptyObject() throws JSONException {
    JsonReader jsonReader = Json.createReader(Thread.currentThread().getContextClassLoader().getResourceAsStream("/1.json"));
    JsonObject json = jsonReader.readObject();
    assertNotNull(json);
    assertTrue(json.isEmpty());
}