Examples with NotFoundException org.neo4j.graphdb.NotFoundException used on opensource projects

Example 31 with NotFoundException

use of org.neo4j.graphdb.NotFoundException in project neo4j by neo4j.

the class ValueNode method pack.

public static void pack(Neo4jPack.Packer packer, Node node) throws IOException {
    //TODO: We should mark deleted nodes properly but that requires updates to protocol and
    //clients. Until that we merely don't fail and return a node with neither labels nor properties
    packer.packStructHeader(STRUCT_FIELD_COUNT, Neo4jPack.NODE);
    packer.pack(node.getId());
    try {
        //read labels and properties, will fail if node has been deleted
        Collection<Label> collectedLabels = Iterables.asList(node.getLabels());
        Map<String, Object> props = node.getAllProperties();
        packer.packListHeader(collectedLabels.size());
        for (Label label : collectedLabels) {
            packer.pack(label.name());
        }
        packer.packRawMap(props);
    } catch (NotFoundException e) {
        //node is deleted, just send along an empty node
        packer.packListHeader(0);
        packer.packRawMap(Collections.emptyMap());
    }
}

Example 32 with NotFoundException

use of org.neo4j.graphdb.NotFoundException in project neo4j-mobile-android by neo4j-contrib.

the class NodeManager method getNodeById.

public Node getNodeById(long nodeId) throws NotFoundException {
    NodeImpl node = nodeCache.get(nodeId);
    if (node != null) {
        return new NodeProxy(nodeId, this);
    }
    ReentrantLock loadLock = lockId(nodeId);
    try {
        if (nodeCache.get(nodeId) != null) {
            return new NodeProxy(nodeId, this);
        }
        if (!persistenceManager.loadLightNode(nodeId)) {
            throw new NotFoundException("Node[" + nodeId + "]");
        }
        node = new NodeImpl(nodeId);
        nodeCache.put(nodeId, node);
        return new NodeProxy(nodeId, this);
    } finally {
        loadLock.unlock();
    }
}

Example 33 with NotFoundException

use of org.neo4j.graphdb.NotFoundException in project neo4j by neo4j.

the class NodeProxyTest method shouldThrowHumaneExceptionsWhenPropertyDoesNotExistOnNode.

@Test
public void shouldThrowHumaneExceptionsWhenPropertyDoesNotExistOnNode() throws Exception {
    // Given a database with PROPERTY_KEY in it
    createNodeWith(PROPERTY_KEY);
    // When trying to get property from node without it
    try (Transaction ignored = db.beginTx()) {
        Node node = db.createNode();
        node.getProperty(PROPERTY_KEY);
        fail("Expected exception to have been thrown");
    }// Then
     catch (NotFoundException exception) {
        assertThat(exception.getMessage(), containsString(PROPERTY_KEY));
    }
}

Example 34 with NotFoundException

use of org.neo4j.graphdb.NotFoundException in project neo4j by neo4j.

the class NodeTest method testNodeChangeProperty.

@Test
public void testNodeChangeProperty() {
    String key1 = "key1";
    String key2 = "key2";
    String key3 = "key3";
    Integer int1 = new Integer(1);
    Integer int2 = new Integer(2);
    String string1 = new String("1");
    String string2 = new String("2");
    Boolean bool1 = new Boolean(true);
    Boolean bool2 = new Boolean(false);
    Node node1 = getGraphDb().createNode();
    Node node2 = getGraphDb().createNode();
    node1.setProperty(key1, int1);
    node2.setProperty(key1, string1);
    node1.setProperty(key2, string2);
    node2.setProperty(key2, int2);
    try {
        node1.setProperty(null, null);
        fail("Null argument should result in exception.");
    } catch (IllegalArgumentException ignored) {
    } catch (NotFoundException e) {
        fail("wrong exception");
    }
    // test change property
    node1.setProperty(key1, int2);
    node2.setProperty(key1, string2);
    assertEquals(string2, node2.getProperty(key1));
    node1.setProperty(key3, bool1);
    node1.setProperty(key3, bool2);
    assertEquals(string2, node2.getProperty(key1));
    node1.delete();
    node2.delete();
}

Example 35 with NotFoundException

use of org.neo4j.graphdb.NotFoundException in project neo4j by neo4j.

the class FunctionalTestPlugin method getOrCreateANode.

private Node getOrCreateANode(GraphDatabaseService db) {
    try (Transaction tx = db.beginTx()) {
        Node node;
        try {
            node = db.getNodeById(0L);
        } catch (NotFoundException e) {
            node = db.createNode();
        }
        tx.success();
        return node;
    }
}