Example usage for com.mongodb DBObject get

List of usage examples for com.mongodb DBObject get

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Introduction

In this page you can find the example usage for com.mongodb DBObject get.

Prototype

Object get(String key);

Source Link

Document

Gets a field from this object by a given name.

Usage

From source file:com.ebay.cloud.cms.dal.persistence.impl.embed.EmbedModifyCommand.java

License:Apache License

protected DBObject buildModifyBody(BitSet arrayBits, DBObject rootObject, MetaClass rootMetaClass) {
    BasicDBObject embedObject = (BasicDBObject) EmbedDBObjectFilter.filter(entity.getId(), rootObject,
            rootMetaClass, null, helper);

    setEmbedObjectValue(embedObject);// ww  w  . j a v a2  s. com

    BasicDBObject setModifyObject = new BasicDBObject();

    BasicDBObject obj = (BasicDBObject) rootObject.get(embedFieldName);
    if (obj == null) {
        throw new CmsDalException(DalErrCodeEnum.ENTITY_NOT_FOUND,
                "Modify, can not find embed field with Id: " + this.entity.getId());
    }
    obj.put(FieldProperty.TIMESTAMP.getDbName(), new Date());

    setModifyObject.put(embedFieldName, obj);
    BasicDBObject modifyBody = new BasicDBObject();
    modifyBody.put("$set", setModifyObject);

    // increase version on root document
    BasicDBObject versionObject = new BasicDBObject();
    versionObject.put(InternalFieldEnum.VERSION.getDbName(), 1);
    modifyBody.put("$inc", versionObject);

    buildRootUpdateObject(entity, null, modifyBody, rootMetaClass);

    return modifyBody;
}

From source file:com.ebay.cloud.cms.dal.persistence.impl.root.RootFieldModifyCommand.java

License:Apache License

private void buildSetFieldBody(DBObject modifyBody) {
    MetaField field = getField();/*from   ww w.j  ava2  s .c  o  m*/
    BasicDBObject enityObject = (BasicDBObject) getEntity().getNode();
    BasicDBObject fieldObject = (BasicDBObject) enityObject.get(field.getDbName());

    if (fieldObject != null) {
        BasicDBObject set = (BasicDBObject) modifyBody.get("$set");
        set.put(field.getDbName(), fieldObject);
    }
}

From source file:com.ebay.cloud.cms.dal.persistence.impl.root.RootFieldModifyCommand.java

License:Apache License

private void buildArrayBody(DBObject modifyBody) {
    MetaField field = getField();/*from   w w  w . j a va  2s  .  co  m*/
    BasicDBObject enityObject = (BasicDBObject) getEntity().getNode();
    BasicDBObject fieldObject = (BasicDBObject) enityObject.get(field.getDbName());

    if (fieldObject != null) {
        Object givenValue = (fieldObject).get(V);
        if (givenValue != null) {
            BasicDBObject eachDbo = new BasicDBObject();
            eachDbo.put("$each", givenValue);

            BasicDBObject addToSetDbo = new BasicDBObject();
            addToSetDbo.put(field.getValueDbName(), eachDbo);

            modifyBody.put("$addToSet", addToSetDbo);

            // field length, only update when we do have updates
            BasicDBObject inc = (BasicDBObject) modifyBody.get("$inc");
            inc.put(field.getDbName() + DOT + FieldProperty.LENGTH.getDbName(),
                    getEntity().getFieldLength(fieldName));
            // field time stamp
            BasicDBObject set = (BasicDBObject) modifyBody.get("$set");
            set.put(field.getDbName() + DOT + FieldProperty.TIMESTAMP.getDbName(),
                    getEntity().getFieldTimestamp(fieldName));
        }
    }

}

From source file:com.ebay.cloud.cms.dal.persistence.impl.root.RootFieldModifyCommand.java

License:Apache License

private void buildJsonBody(DBObject modifyBody) {
    BasicDBObject set = (BasicDBObject) modifyBody.get("$set");

    MetaField field = getField();/*from   w  w  w. j a  va2 s .c om*/
    BasicDBObject enityObject = (BasicDBObject) getEntity().getNode();
    BasicDBObject fieldObject = (BasicDBObject) enityObject.get(field.getDbName());
    if (fieldObject != null) {
        BasicDBObject givenValue = (BasicDBObject) (fieldObject).get(V);

        if (givenValue != null) {
            for (String key : givenValue.keySet()) {
                set.put(field.getValueDbName() + DOT + key, givenValue.get(key));
            }

            // field properties
            // no length here
            BasicDBObject setDbo = (BasicDBObject) modifyBody.get("$set");
            setDbo.put(field.getDbName() + DOT + FieldProperty.TIMESTAMP.getDbName(),
                    getEntity().getFieldTimestamp(field.getName()));
        }
    }

}

From source file:com.ebay.cloud.cms.dal.persistence.impl.root.RootModifyCommand.java

License:Apache License

@Override
public void execute(PersistenceContext context) {
    DBObject queryObject = buildModifyQuery();
    DBObject updateObject = buildModifyBody();
    WriteResult result = null;//from w w  w .  j a v a 2  s.c  o m
    result = MongoExecutor.update(context, entity.getMetaClass(), queryObject, updateObject);

    //throw exception if modify failed to match any entity
    if (result.getN() == 0) {
        DBObject getResult = RootGetCommand.findDBObject(entity.getId(), entity.getBranchId(), context,
                entity.getMetaClass(), ROOT_FIELDS, true);
        if (getResult == null) {
            throw new CmsDalException(DalErrCodeEnum.ENTITY_NOT_FOUND,
                    "Can't find entity: oid=" + entity.getId());
        }
        Object currentVersion = getResult.get(InternalFieldEnum.VERSION.getDbName());
        throw new CmsDalException(DalErrCodeEnum.VERSION_CONFLICT, "current version is " + currentVersion
                + ", but version in modify body is " + version + "! entity is " + entity.toString());
    }
}

From source file:com.ebay.cloud.cms.dal.persistence.impl.root.RootReplaceCommand.java

License:Apache License

@Override
public void execute(PersistenceContext context) {
    DBObject getResult = RootGetCommand.findDBObject(entity.getId(), entity.getBranchId(), context,
            entity.getMetaClass(), ROOT_FIELDS, false);
    if (getResult != null) {
        // check version
        int currentVersion = (Integer) getResult.get(InternalFieldEnum.VERSION.getDbName());
        int version = entity.getVersion();
        if ((version != IEntity.NO_VERSION) && (currentVersion != version)) {
            throw new CmsDalException(DalErrCodeEnum.VERSION_CONFLICT, "current version is " + currentVersion
                    + ", but version in repalce body is " + version + "! entity is " + entity.toString());
        }//from  w  w  w  .  java  2  s.  c  o  m

        Date createTime = (Date) getResult.get(InternalFieldEnum.CREATETIME.getDbName());

        DBObject queryObject = buildReplaceRootQuery(currentVersion);
        DBObject updateObject = buildReplaceRootUpdate(currentVersion, createTime);
        try {
            WriteResult result = MongoExecutor.update(context, entity.getMetaClass(), queryObject,
                    updateObject);
            if (result.getN() == 0) {
                throw new CmsDalException(DalErrCodeEnum.VERSION_CONFLICT,
                        "current version is not " + currentVersion);
            }
            //set version for response
            entity.setVersion(currentVersion + 1);
        } catch (RuntimeException e) {
            entity.setVersion(currentVersion);
            throw e;
        } catch (Throwable t) {
            //if anything bad happens, need to set version back
            entity.setVersion(currentVersion);
        } finally {
            //in update scenario, have to set id value back into entity object because we
            //removed id field before
            entity.setId(entity.getId());
        }
    } else {
        // insert

        //2012/7/13 jianxu1 multi threading issue, if client A and client B send replace at same time
        //at T1, none of A and B find existing entity, so at T2, both A and B call insert, of we do not have 
        //unique index for combination of _branchId and _oid, we end up with duplicated entities.
        //FIX is: http://www.mongodb.org/display/DOCS/Indexes,  composite unique index
        //db.branches.ensureIndex({_branchId: 1, _oid: 1}, {unique: true});
        //TODO: change create repository to add composite unique index for branches, for main branch, we just need unique index on _oid

        DBObject insertObject = entity.getNode();
        insertObject.removeField("_id");
        insertObject.put(InternalFieldEnum.VERSION.getDbName(), IEntity.START_VERSION);
        MongoExecutor.insert(context, entity.getMetaClass(), insertObject);
    }
}

From source file:com.ebay.cloud.cms.dal.search.impl.query.EmbedSearchQuery.java

License:Apache License

private DBObject trimOperator(DBObject match, String operator) {
    if (match == null) {
        return null;
    }/* ww  w .  j av a2  s .com*/
    return match.containsField(operator) ? (DBObject) match.get(operator) : match;
}

From source file:com.ebay.cloud.cms.dalapi.persistence.impl.embed.AbstractEmbedCommand.java

License:Apache License

protected void buildRootUpdateObject(BsonEntity entity, Integer newVersion, DBObject updateBody,
        MetaClass rootMetaClass) {//from w  w w  .ja  v a2s.c  om
    BasicDBObject setObject = (BasicDBObject) updateBody.get("$set");
    if (setObject == null) {
        setObject = new BasicDBObject();
    }

    // populate the data to the root entity for the internal fields
    if (newVersion != null) {
        setObject.put(InternalFieldEnum.VERSION.getDbName(), newVersion);
    }
    setObject.put(InternalFieldEnum.MODIFIER.getDbName(), entity.getModifier());
    setObject.put(InternalFieldEnum.LASTMODIFIED.getDbName(), entity.getLastModified());
    setObject.put(InternalFieldEnum.STATUS.getDbName(), StatusEnum.ACTIVE.toString());
    setObject.put(InternalFieldEnum.BRANCH.getDbName(), entity.getBranchId());
    setObject.put(InternalFieldEnum.TYPE.getDbName(), rootMetaClass.getName());
    String rootId = helper.getRootId(entity.getId());
    setObject.put(InternalFieldEnum.ID.getDbName(), rootId);

    setInternalField(entity, setObject, InternalFieldEnum.COMMENT);
    setInternalField(entity, setObject, InternalFieldEnum.USER);

    updateBody.put("$set", setObject);
}

From source file:com.ebay.cloud.cms.dalapi.persistence.impl.embed.EmbedCreateCommand.java

License:Apache License

@Override
public void execute(PersistenceContext context) {
    MetaClass rootMetaClass = getRootEntityMetaClass(entity.getId(), context);
    String parentId = helper.getParentId(entity.getId());
    BitSet parentBits = helper.checkArrayOnPath(parentId, rootMetaClass);

    // query root object with parent id
    DBObject rootQuery = buildGetQuery(parentBits, parentId, rootMetaClass);

    String id = parentId;//from   w w w  .ja  v a 2s .  c  om
    if (parentBits.cardinality() == 0) {
        id = entity.getId();
    }
    DBObject rootFields = buildGetRootFields(id, rootMetaClass);
    DBObject rootObject = MongoExecutor.findOne(context, rootMetaClass, rootQuery, rootFields);
    if (rootObject == null) {
        throw new CmsDalException(DalErrCodeEnum.ENTITY_NOT_FOUND,
                "Create, parent document doesn't exist!  " + parentId);
    }

    // add embed document into parent document
    DBObject createQuery = buildModifyQuery(rootQuery, entity);
    int newVersion = (Integer) rootObject.get(InternalFieldEnum.VERSION.getDbName()) + 1;
    String parentPath = getUpdatePath(parentBits, parentId, rootObject, rootMetaClass);
    MetaRelationship lastField = helper.getLastMetaField(entity.getId(), rootMetaClass);
    DBObject createBody = buildCreateBody(lastField, parentPath, entity, newVersion, rootMetaClass, rootObject,
            parentId);

    WriteResult result = MongoExecutor.update(context, rootMetaClass, createQuery, createBody);
    if (result.getN() == 0) {
        // something happens between get and replace
        throw new CmsDalException(DalErrCodeEnum.VERSION_CONFLICT, "Version check fails");
    }
}

From source file:com.ebay.cloud.cms.dalapi.persistence.impl.embed.EmbedDeleteCommand.java

License:Apache License

@Override
public void execute(PersistenceContext context) {
    MetaClass rootMetaClass = getRootEntityMetaClass(entityId, context);
    String parentId = helper.getParentId(entityId);
    BitSet parentBits = helper.checkArrayOnPath(entityId, rootMetaClass);

    //TODO : adjacent query/update in code level, should always hit PRIMARY
    // query root object with parent id
    DBObject rootQuery = buildGetQuery(parentBits, parentId, rootMetaClass);
    DBObject rootFields = buildGetFields(parentBits, parentId, false, rootMetaClass);
    DBObject rootObject = MongoExecutor.findOne(context, rootMetaClass, rootQuery, rootFields);
    if (rootObject == null) {
        throw new CmsDalException(DalErrCodeEnum.ENTITY_NOT_FOUND,
                "Delete, parenet document doesn't exist!  " + parentId);
    }//from   ww w.j a v  a2  s. c o m

    // add embed document into parent document
    DBObject createQuery = buildModifyQuery(rootQuery, entity);
    int newVersion = (Integer) rootObject.get(InternalFieldEnum.VERSION.getDbName()) + 1;
    String parentPath = getUpdatePath(parentBits, parentId, rootObject, rootMetaClass);
    MetaRelationship lastMetaField = helper.getLastMetaField(entityId, rootMetaClass);
    DBObject deleteBody = buildDeleteBody(lastMetaField, parentPath, entityId, newVersion, rootMetaClass);
    WriteResult result = MongoExecutor.update(context, rootMetaClass, createQuery, deleteBody);
    if (result.getN() == 0) {
        // something happens between get and replace
        throw new CmsDalException(DalErrCodeEnum.VERSION_CONFLICT,
                "Version check fails for " + entityId + " in class " + metaClass.getName());
    }
}