Examples with AtlasVertex org.apache.atlas.repository.graphdb.AtlasVertex used on opensource projects

Example 51 with AtlasVertex

use of org.apache.atlas.repository.graphdb.AtlasVertex in project incubator-atlas by apache.

the class AtlasGraphUtilsV1 method typeHasInstanceVertex.

public static boolean typeHasInstanceVertex(String typeName) throws AtlasBaseException {
    AtlasGraphQuery query = AtlasGraphProvider.getGraphInstance().query().has(Constants.TYPE_NAME_PROPERTY_KEY, AtlasGraphQuery.ComparisionOperator.EQUAL, typeName);
    Iterator<AtlasVertex> results = query.vertices().iterator();
    boolean hasInstanceVertex = results != null && results.hasNext();
    if (LOG.isDebugEnabled()) {
        LOG.debug("typeName {} has instance vertex {}", typeName, hasInstanceVertex);
    }
    return hasInstanceVertex;
}

Example 52 with AtlasVertex

use of org.apache.atlas.repository.graphdb.AtlasVertex in project incubator-atlas by apache.

the class AtlasEntityDefStoreV1 method getByName.

@Override
public AtlasEntityDef getByName(String name) throws AtlasBaseException {
    if (LOG.isDebugEnabled()) {
        LOG.debug("==> AtlasEntityDefStoreV1.getByName({})", name);
    }
    AtlasVertex vertex = typeDefStore.findTypeVertexByNameAndCategory(name, TypeCategory.CLASS);
    if (vertex == null) {
        throw new AtlasBaseException(AtlasErrorCode.TYPE_NAME_NOT_FOUND, name);
    }
    vertex.getProperty(Constants.TYPE_CATEGORY_PROPERTY_KEY, TypeCategory.class);
    AtlasEntityDef ret = toEntityDef(vertex);
    if (LOG.isDebugEnabled()) {
        LOG.debug("<== AtlasEntityDefStoreV1.getByName({}): {}", name, ret);
    }
    return ret;
}

Example 53 with AtlasVertex

use of org.apache.atlas.repository.graphdb.AtlasVertex in project incubator-atlas by apache.

the class AtlasEntityDefStoreV1 method deleteByName.

@Override
public void deleteByName(String name, Object preDeleteResult) throws AtlasBaseException {
    if (LOG.isDebugEnabled()) {
        LOG.debug("==> AtlasEntityDefStoreV1.deleteByName({}, {})", name, preDeleteResult);
    }
    AtlasVertex vertex;
    if (preDeleteResult == null || !(preDeleteResult instanceof AtlasVertex)) {
        vertex = preDeleteByName(name);
    } else {
        vertex = (AtlasVertex) preDeleteResult;
    }
    typeDefStore.deleteTypeVertex(vertex);
    if (LOG.isDebugEnabled()) {
        LOG.debug("<== AtlasEntityDefStoreV1.deleteByName({}, {})", name, preDeleteResult);
    }
}

Example 54 with AtlasVertex

use of org.apache.atlas.repository.graphdb.AtlasVertex in project incubator-atlas by apache.

the class AtlasEntityDefStoreV1 method preDeleteByGuid.

@Override
public AtlasVertex preDeleteByGuid(String guid) throws AtlasBaseException {
    if (LOG.isDebugEnabled()) {
        LOG.debug("==> AtlasEntityDefStoreV1.preDeleteByGuid({})", guid);
    }
    AtlasVertex ret = typeDefStore.findTypeVertexByGuidAndCategory(guid, TypeCategory.CLASS);
    String typeName = AtlasGraphUtilsV1.getProperty(ret, Constants.TYPENAME_PROPERTY_KEY, String.class);
    if (AtlasGraphUtilsV1.typeHasInstanceVertex(typeName)) {
        throw new AtlasBaseException(AtlasErrorCode.TYPE_HAS_REFERENCES, typeName);
    }
    if (ret == null) {
        throw new AtlasBaseException(AtlasErrorCode.TYPE_GUID_NOT_FOUND, guid);
    }
    typeDefStore.deleteTypeVertexOutEdges(ret);
    if (LOG.isDebugEnabled()) {
        LOG.debug("<== AtlasEntityDefStoreV1.preDeleteByGuid({}): {}", guid, ret);
    }
    return ret;
}

Example 55 with AtlasVertex

use of org.apache.atlas.repository.graphdb.AtlasVertex in project incubator-atlas by apache.

the class AtlasEntityDefStoreV1 method preDeleteByName.

@Override
public AtlasVertex preDeleteByName(String name) throws AtlasBaseException {
    if (LOG.isDebugEnabled()) {
        LOG.debug("==> AtlasEntityDefStoreV1.preDeleteByName({})", name);
    }
    AtlasVertex ret = typeDefStore.findTypeVertexByNameAndCategory(name, TypeCategory.CLASS);
    if (AtlasGraphUtilsV1.typeHasInstanceVertex(name)) {
        throw new AtlasBaseException(AtlasErrorCode.TYPE_HAS_REFERENCES, name);
    }
    if (ret == null) {
        throw new AtlasBaseException(AtlasErrorCode.TYPE_NAME_NOT_FOUND, name);
    }
    typeDefStore.deleteTypeVertexOutEdges(ret);
    if (LOG.isDebugEnabled()) {
        LOG.debug("<== AtlasEntityDefStoreV1.preDeleteByName({}): {}", name, ret);
    }
    return ret;
}