Examples with LineageLogger org.apache.hadoop.hive.ql.hooks.LineageLogger used on opensource projects

Example 1 with LineageLogger

use of org.apache.hadoop.hive.ql.hooks.LineageLogger in project hive by apache.

the class TestJdbcWithMiniHS2 method getVerticesFromHooks.

/**
 * Use the logic in LineageLogger to get vertices from Hook Contexts
 */
private List<Set<LineageLogger.Vertex>> getVerticesFromHooks() {
    List<Set<LineageLogger.Vertex>> verticesLists = new ArrayList<>();
    List<HookContext> hookList = ReadableHook.getHookList();
    for (HookContext hookContext : hookList) {
        QueryPlan plan = hookContext.getQueryPlan();
        LineageCtx.Index index = hookContext.getIndex();
        assertNotNull(index);
        List<LineageLogger.Edge> edges = LineageLogger.getEdges(plan, index);
        Set<LineageLogger.Vertex> vertices = LineageLogger.getVertices(edges);
        verticesLists.add(vertices);
    }
    return verticesLists;
}