Example usage for com.mongodb DBObject get

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.entity.flatten.impl.datahandler.ReferenceTypeHandler.java

License:Apache License

/**
 * @param metaField //w w  w.j a  v  a  2  s  .  c  o m
 * @param value
 */
@Override
public Object read(IEntity curEntity, Object value, MetaField metaField) {
    CheckConditions.checkNotNull(metaField);
    if (value == null) {
        // return null, rather than throws exception. this null should be
        // ignored. Related: CMS-3121, CMS-3536
        return null;
    }
    NewBsonEntity be = null;
    try {
        //            if (value instanceof DBObject) {
        DBObject dbValue = (DBObject) value;
        MetaRelationship metaRelation = (MetaRelationship) metaField;
        MetaClass refMetaClass = metaRelation.getRefMetaClass();
        String type = (String) dbValue.get(InternalFieldEnum.TYPE.getDbName());
        if (!StringUtils.isNullOrEmpty(type) && !type.equals(refMetaClass.getName())) {
            refMetaClass = refMetaClass.getMetadataService().getMetaClass(type);
            if (refMetaClass == null) {
                refMetaClass = metaRelation.getRefMetaClass();
            }
        }
        be = new NewBsonEntity(refMetaClass, dbValue);
        //            } else if (value instanceof String || value == null) {
        //                String id = (String) value;
        //                MetaRelationship metaRelation = (MetaRelationship) metaField;
        //                MetaClass refMetaClass = metaRelation.getRefMetaClass();
        //                be = new NewBsonEntity(refMetaClass);
        //                be.setReference(true);
        //                be.setId(id);
        //            }
    } catch (IllegalArgumentException e) {
        String metaClassName = curEntity.getMetaClass().getName();
        String repoName = curEntity.getRepositoryName();
        String branchId = curEntity.getBranchId();
        String fieldName = metaField.getName();
        logger.error(
                "Fail to validate reference type field. Entity: {}, RepoName: {}, branchId: {}, fieldName: {}, errorMessage: {}",
                new Object[] { metaClassName, repoName, branchId, fieldName, e.getMessage() });
    }
    return be;
}

---

From source file:com.ebay.cloud.cms.dal.entity.impl.bson.datahandler.ReferenceTypeHandler.java

License:Apache License

/**
 * @param metaField /*from  w w  w. j ava 2  s . c o  m*/
 * @param value
 */
@Override
public Object read(IEntity curEntity, Object value, MetaField metaField) {
    CheckConditions.checkNotNull(metaField);
    if (value == null) {
        // return null, rather than throws exception. this null should be
        // ignored. Related: CMS-3121, CMS-3536
        return null;
    }
    BsonEntity be = null;
    try {
        DBObject dbValue = (DBObject) value;
        MetaRelationship metaRelation = (MetaRelationship) metaField;
        MetaClass refMetaClass = metaRelation.getRefMetaClass();
        String type = (String) dbValue.get(InternalFieldEnum.TYPE.getDbName());
        if (!StringUtils.isNullOrEmpty(type) && !type.equals(refMetaClass.getName())) {
            refMetaClass = refMetaClass.getMetadataService().getMetaClass(type);
            if (refMetaClass == null) {
                refMetaClass = metaRelation.getRefMetaClass();
            }
        }
        be = new BsonEntity(refMetaClass, dbValue);
    } catch (IllegalArgumentException e) {
        String metaClassName = curEntity.getMetaClass().getName();
        String repoName = curEntity.getRepositoryName();
        String branchId = curEntity.getBranchId();
        String fieldName = metaField.getName();
        logger.error(
                "Fail to validate reference type field. Entity: {}, RepoName: {}, branchId: {}, fieldName: {}, errorMessage: {}",
                new Object[] { metaClassName, repoName, branchId, fieldName, e.getMessage() });
    }
    return be;
}

---

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

License:Apache License

protected void getArrayOffsetPath(BitSet arrayBits, String embedId, DBObject getObject, MetaClass rootMetaClass,
        List<String> updatePathList) {
    DBObject currentObject = getObject;
    List<String> idList = helper.generateAncestorIds(embedId);
    List<String> fieldDbValueNameList = helper.getEmbedPathSegs(embedId, rootMetaClass);
    for (int index = 0; index < fieldDbValueNameList.size(); index++) {
        String fieldDbValueName = fieldDbValueNameList.get(index);
        updatePathList.add(fieldDbValueName);
        //            updatePathList.add(MetaField.VALUE_KEY);
        Object fieldValue = currentObject.get(fieldDbValueName);
        if (arrayBits.get(index)) {
            @SuppressWarnings("unchecked")
            List<DBObject> refValues = (List<DBObject>) fieldValue; //fieldObject.get(MetaField.VALUE_KEY);
            String idVal = idList.get(index);
            int offset = findOffsetById(refValues, idVal);
            currentObject = refValues.get(offset);
            updatePathList.add(String.valueOf(offset));
        } else {/*from ww w .  j av  a2  s  .  c om*/
            currentObject = (DBObject) fieldValue;
        }
    }
}

---

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

License:Apache License

protected int findOffsetById(List<DBObject> refValues, String embedId) {
    DBObject matchObject = null;//  w ww.j  av a 2s.  co  m
    int elemIndex = 0;
    for (; elemIndex < refValues.size(); elemIndex++) {
        DBObject refObject = refValues.get(elemIndex);
        String objectId = (String) refObject.get(InternalFieldEnum.ID.getDbName());
        if (objectId.equals(embedId)) {
            matchObject = refObject;
            break;
        }
    }
    if (matchObject == null) {
        throw new CmsDalException(DalErrCodeEnum.ENTITY_NOT_FOUND,
                "Can not find embed document with id=" + embedId);
    }
    return elemIndex;
}

---

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

License:Apache License

protected void buildRootUpdateObject(NewBsonEntity entity, Integer newVersion, DBObject updateBody,
        MetaClass rootMetaClass) {/*from  w w w .j  a va2  s.co m*/
    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(), new Date());
    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.dal.persistence.flatten.impl.embed.AbstractFieldEmbedCommand.java

License:Apache License

protected void buildEmbedModifyBody(String parentPath, DBObject modifyBody) {
    BasicDBObject setObject = (BasicDBObject) modifyBody.get("$set");
    if (setObject == null) {
        setObject = new BasicDBObject();
    }/*from ww w.  j a  v  a 2 s . co  m*/
    StringBuilder modifier = new StringBuilder();
    modifier.append(parentPath).append(DOT).append(InternalFieldEnum.MODIFIER.getDbName());
    StringBuilder lastModified = new StringBuilder();
    lastModified.append(parentPath).append(DOT).append(InternalFieldEnum.LASTMODIFIED.getDbName());

    setObject.put(modifier.toString(), entity.getModifier());
    setObject.put(lastModified.toString(), entity.getLastModified());
    modifyBody.put("$set", setObject);
}

---

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

License:Apache License

protected DBObject buildSetBody(DBObject rootObject) {
    BasicDBObject setModifyObject = new BasicDBObject();
    Object obj = (Object) rootObject.get(embedFieldName);
    if (obj == null) {
        throw new CmsDalException(DalErrCodeEnum.ENTITY_NOT_FOUND,
                getOperation() + ", can not find embed field with Id: " + this.entity.getId());
    }/*from w  ww  . j  ava2  s.co  m*/
    // update root embed field's last modified time
    MetaField field = rootMetaClass.getFieldByFlattenValueDbName(embedFieldName);
    rootObject.put(field.getFlattenPropertyValueDbName(FieldProperty.TIMESTAMP), 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.flatten.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;//  w  w w  . j  a  v  a 2  s.  c  o m
    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, parenet 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" + "! entity is " + entity.toString());
    }
}

---

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

License:Apache License

public DBObject buildCreateBody(MetaRelationship lastField, String parentPath, NewBsonEntity entity,
        int newVersion, MetaClass rootMetaClass, DBObject rootObject, String parentId) {
    BasicDBObject embedParentObject = (BasicDBObject) EmbedDBObjectFilter.filter(parentId, rootObject,
            rootMetaClass, null, helper);
    if (embedParentObject == null) {
        throw new CmsDalException(DalErrCodeEnum.ENTITY_NOT_FOUND,
                "Create, can not find embed field with Id: " + parentId);
    }/*from   w ww .j  ava2 s  . c  o m*/

    embedParentObject.remove("_id");

    // for flatten storage, the length change might differ between the embed under root and multiple level embed  
    List<String> embedSegList = helper.getEmbedPathSegs(entity.getId(), rootMetaClass);
    boolean justUnderRoot = embedSegList.size() == 1;

    BasicDBObject setModifyObject = new BasicDBObject();
    if (lastField.getCardinality() == CardinalityEnum.Many) {
        BasicDBList valueList = (BasicDBList) embedParentObject.get(lastField.getFlattenValueDbName());
        if (valueList == null) {
            // creation
            valueList = new BasicDBList();
            valueList.add(entity.getNode());
            // set the value 
            embedParentObject.put(lastField.getFlattenValueDbName(), valueList);
            // set the field properties
            setFieldProperties(lastField, setModifyObject, embedParentObject, 1, new Date(), justUnderRoot);
        } else {
            // append
            int size = valueList.size();
            valueList.add(entity.getNode());
            setFieldProperties(lastField, setModifyObject, embedParentObject, size + 1, new Date(),
                    justUnderRoot);
        }
    } else {
        embedParentObject.put(lastField.getFlattenValueDbName(), entity.getNode());
        setFieldProperties(lastField, setModifyObject, embedParentObject, null, new Date(), justUnderRoot);
    }

    DBObject obj = (DBObject) rootObject.get(embedFieldName);
    if (obj == null) {
        throw new CmsDalException(DalErrCodeEnum.ENTITY_NOT_FOUND,
                "Create, can not find embed field with Id: " + this.entity.getId());
    }
    // update root field last modified
    MetaField rootEmbedfield = rootMetaClass.getFieldByFlattenValueDbName(embedFieldName);
    setModifyObject.put(rootEmbedfield.getFlattenPropertyValueDbName(FieldProperty.TIMESTAMP), 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.flatten.impl.embed.EmbedDBObjectFilter.java

License:Apache License

@SuppressWarnings("unchecked")
private static DBObject traverse(DBObject currObject, String embedId, List<String> pathList, int index,
        Collection<String> fields) {
    if (index == pathList.size()) {
        if (compareEntityId(embedId, currObject)) {
            return filterFields(currObject, fields);
        }/*from w w w . j  a v a2 s  .c  om*/
        return null;
    }
    String fieldDbValueName = pathList.get(index);
    Object fieldValue = currObject.get(fieldDbValueName);
    if (fieldValue == null) {
        return null;
    }
    if (fieldValue instanceof List) {
        List<DBObject> listValue = (List<DBObject>) fieldValue;
        for (DBObject childObject : listValue) {
            DBObject res = traverse(childObject, embedId, pathList, index + 1, fields);
            if (res != null) {
                return res;
            }
        }
    } else if (fieldValue instanceof DBObject) {
        DBObject childObject = (DBObject) fieldValue;
        return traverse(childObject, embedId, pathList, index + 1, fields);
    }
    return null;
}

---

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