Examples with ExpressionException org.apache.cayenne.exp.ExpressionException used on opensource projects

Example 1 with ExpressionException

use of org.apache.cayenne.exp.ExpressionException in project cayenne by apache.

the class DataMapUtils method isValidParameterNames.

public Boolean isValidParameterNames(SelectQueryDescriptor query) {
    if (query.getQualifier() == null) {
        return true;
    }
    Map<String, String> queryParameters = queriesMap.get(query.getName());
    if (queryParameters == null) {
        try {
            queryParameters = getParameterNames(query.getQualifier(), query.getRoot());
        } catch (Exception e) {
            // if we have wrong path in queryParameters return false.
            return false;
        }
    }
    for (Ordering ordering : query.getOrderings()) {
        // validate paths in ordering
        String path = ordering.getSortSpecString();
        Iterator<CayenneMapEntry> it = ((ObjEntity) query.getRoot()).resolvePathComponents(path);
        while (it.hasNext()) {
            try {
                it.next();
            } catch (ExpressionException e) {
                // if we have wrong path in orderings return false.
                return false;
            }
        }
    }
    return true;
}

Example 2 with ExpressionException

use of org.apache.cayenne.exp.ExpressionException in project cayenne by apache.

the class DefaultSelectTranslatorIT method testCreateSqlString13.

@Test
public void testCreateSqlString13() throws Exception {
    // query with invalid joint prefetches
    SelectQuery q = new SelectQuery(Painting.class);
    q.addPrefetch("invalid.invalid").setSemantics(PrefetchTreeNode.JOINT_PREFETCH_SEMANTICS);
    try {
        new DefaultSelectTranslator(q, dataNode.getAdapter(), dataNode.getEntityResolver()).getSql();
        fail("Invalid jointPrefetch must have thrown...");
    } catch (ExpressionException e) {
    // expected
    }
}

Example 3 with ExpressionException

use of org.apache.cayenne.exp.ExpressionException in project cayenne by apache.

the class EOModelProcessor method makeFlatRelationships.

/**
 * Create Flattened ObjRelationships of the specified entity.
 */
protected void makeFlatRelationships(EOModelHelper helper, ObjEntity e) {
    Map info = helper.entityPListMap(e.getName());
    List rinfo = (List) info.get("relationships");
    if (rinfo == null) {
        return;
    }
    Iterator it = rinfo.iterator();
    while (it.hasNext()) {
        Map relMap = (Map) it.next();
        String targetPath = (String) relMap.get("definition");
        // ignore normal relationships
        if (targetPath == null) {
            continue;
        }
        ObjRelationship flatRel = new ObjRelationship();
        flatRel.setName((String) relMap.get("name"));
        flatRel.setSourceEntity(e);
        try {
            flatRel.setDbRelationshipPath(targetPath);
        } catch (ExpressionException ex) {
            logger.warn("Invalid relationship: " + targetPath);
            continue;
        }
        // find target entity
        Map entityInfo = info;
        StringTokenizer toks = new StringTokenizer(targetPath, ".");
        while (toks.hasMoreTokens() && entityInfo != null) {
            String pathComponent = toks.nextToken();
            // get relationship info and reset entityInfo, so that we could
            // use
            // entityInfo state as an indicator of valid flat relationship
            // enpoint
            // outside the loop
            Collection relationshipInfo = (Collection) entityInfo.get("relationships");
            entityInfo = null;
            if (relationshipInfo == null) {
                break;
            }
            Iterator rit = relationshipInfo.iterator();
            while (rit.hasNext()) {
                Map pathRelationship = (Map) rit.next();
                if (pathComponent.equals(pathRelationship.get("name"))) {
                    String targetName = (String) pathRelationship.get("destination");
                    entityInfo = helper.entityPListMap(targetName);
                    break;
                }
            }
        }
        if (entityInfo != null) {
            flatRel.setTargetEntityName((String) entityInfo.get("name"));
        }
        e.addRelationship(flatRel);
    }
}

Example 4 with ExpressionException

use of org.apache.cayenne.exp.ExpressionException in project cayenne by apache.

the class ObjRelationship method getValidRelationshipPath.

/**
 * Returns dot-separated path over DbRelationships, only including
 * components that have valid DbRelationships.
 */
String getValidRelationshipPath() {
    String path = getDbRelationshipPath();
    if (path == null) {
        return null;
    }
    ObjEntity entity = (ObjEntity) getSourceEntity();
    if (entity == null) {
        throw new CayenneRuntimeException("Can't resolve DbRelationships, null source ObjEntity");
    }
    DbEntity dbEntity = entity.getDbEntity();
    if (dbEntity == null) {
        return null;
    }
    StringBuilder validPath = new StringBuilder();
    try {
        for (PathComponent<DbAttribute, DbRelationship> pathComponent : dbEntity.resolvePath(new ASTDbPath(path), Collections.emptyMap())) {
            if (validPath.length() > 0) {
                validPath.append(Entity.PATH_SEPARATOR);
            }
            validPath.append(pathComponent.getName());
        }
    } catch (ExpressionException ex) {
    }
    return validPath.toString();
}

Example 5 with ExpressionException

use of org.apache.cayenne.exp.ExpressionException in project cayenne by apache.

the class ObjRelationship method refreshFromPath.

/**
 * Rebuild a list of relationships if String relationshipPath has changed.
 */
final void refreshFromPath(String dbRelationshipPath, boolean stripInvalid) {
    // remove existing relationships
    dbRelationships.clear();
    if (dbRelationshipPath != null) {
        ObjEntity entity = (ObjEntity) getSourceEntity();
        if (entity == null) {
            throw new CayenneRuntimeException("Can't resolve DbRelationships, null source ObjEntity");
        }
        try {
            // add new relationships from path
            Iterator<CayenneMapEntry> it = entity.resolvePathComponents(new ASTDbPath(dbRelationshipPath));
            while (it.hasNext()) {
                DbRelationship relationship = (DbRelationship) it.next();
                dbRelationships.add(relationship);
            }
        } catch (ExpressionException ex) {
            if (!stripInvalid) {
                throw ex;
            }
        }
    }
    recalculateToManyValue();
    recalculateReadOnlyValue();
}