Example usage for com.mongodb DBObject removeField

Introduction

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

Prototype

Object removeField(String key);

Source Link

Document

Removes a field with a given name from this object.

Usage

From source file:org.teiid.translator.mongodb.MongoDBUpdateExecution.java

License:Open Source License

private void executeInternal() throws TranslatorException {

    DBCollection collection = getCollection(this.visitor.mongoDoc.getTargetTable());
    MongoDocument mongoDoc = this.visitor.mongoDoc;
    AggregationOptions options = this.executionFactory.getOptions(this.executionContext.getBatchSize());

    List<WriteResult> executionResults = new ArrayList<WriteResult>();

    if (this.command instanceof Insert) {
        // get pull key based documents to embed
        LinkedHashMap<String, DBObject> embeddedDocuments = fetchEmbeddedDocuments();

        // check if this document need to be embedded in any other document
        if (mongoDoc.isMerged()) {
            DBObject match = getInsertMatch(mongoDoc, this.visitor.columnValues);
            BasicDBObject insert = this.visitor.getInsert(embeddedDocuments);

            if (mongoDoc.getMergeKey().getAssociation() == Association.MANY) {
                removeParentKey(mongoDoc, insert);
                BasicDBObject insertDoc = new BasicDBObject(mongoDoc.getQualifiedName(true), insert);
                LogManager.logDetail(LogConstants.CTX_CONNECTOR, "update - {\"$match\": {" + match + "}}"); //$NON-NLS-1$ //$NON-NLS-2$
                LogManager.logDetail(LogConstants.CTX_CONNECTOR, "update - {\"$push\": {" + insertDoc + "}}"); //$NON-NLS-1$ //$NON-NLS-2$
                executionResults.add(collection.update(match, new BasicDBObject("$push", insertDoc), false, //$NON-NLS-1$
                        true, WriteConcern.ACKNOWLEDGED));
            } else {
                insert.remove("_id"); //$NON-NLS-1$
                BasicDBObject insertDoc = new BasicDBObject(mongoDoc.getQualifiedName(true), insert);
                LogManager.logDetail(LogConstants.CTX_CONNECTOR, "update - {\"$match\": {" + match + "}}"); //$NON-NLS-1$ //$NON-NLS-2$
                LogManager.logDetail(LogConstants.CTX_CONNECTOR, "update - {\"$set\": {" + insertDoc + "}}"); //$NON-NLS-1$ //$NON-NLS-2$
                executionResults.add(collection.update(match, new BasicDBObject("$set", insertDoc), false, true, //$NON-NLS-1$
                        WriteConcern.ACKNOWLEDGED));
            }//from   w ww .j a  v  a 2s .c  o  m
        } else {
            for (String docName : embeddedDocuments.keySet()) {
                DBObject embeddedDoc = embeddedDocuments.get(docName);
                embeddedDoc.removeField("_id"); //$NON-NLS-1$
            }
            // gets its own collection
            BasicDBObject in = this.visitor.getInsert(embeddedDocuments);
            LogManager.logDetail(LogConstants.CTX_CONNECTOR, "{\"insert\": {" + in + "}}"); //$NON-NLS-1$ //$NON-NLS-2$
            executionResults.add(collection.insert(in, WriteConcern.ACKNOWLEDGED));
        }
    } else if (this.command instanceof Update) {
        // get pull key based documents to embed
        LinkedHashMap<String, DBObject> embeddedDocuments = fetchEmbeddedDocuments();
        DBObject match = new BasicDBObject();
        if (this.visitor.match != null) {
            match = this.visitor.match;
        }
        if (mongoDoc.isMerged()) {
            // multi items in array update not available, http://jira.mongodb.org/browse/SERVER-1243
            // this work-around for above issue
            List<String> parentKeyNames = parentKeyNames(mongoDoc);

            DBObject documentMatch = new BasicDBObject("$match", match); //$NON-NLS-1$                  
            DBObject projection = new BasicDBObject("$project", buildProjectForUpdate(mongoDoc)); //$NON-NLS-1$
            Cursor output = collection.aggregate(Arrays.asList(documentMatch, projection), options);
            while (output.hasNext()) {
                BasicDBObject row = (BasicDBObject) output.next();
                buildUpdate(mongoDoc, collection, row, parentKeyNames, 0, null, executionResults,
                        new UpdateOperationImpl());
            }
        } else {
            for (String docName : embeddedDocuments.keySet()) {
                DBObject embeddedDoc = embeddedDocuments.get(docName);
                embeddedDoc.removeField("_id"); //$NON-NLS-1$
            }
            BasicDBObject u = this.visitor.getUpdate(embeddedDocuments);
            LogManager.logDetail(LogConstants.CTX_CONNECTOR, "update - {\"$match\": {" + match + "}}"); //$NON-NLS-1$ //$NON-NLS-2$
            LogManager.logDetail(LogConstants.CTX_CONNECTOR, "update - {\"$set\": {" + u + "}}"); //$NON-NLS-1$ //$NON-NLS-2$
            executionResults.add(collection.update(match, new BasicDBObject("$set", u), false, true, //$NON-NLS-1$
                    WriteConcern.ACKNOWLEDGED));
        }

        // if the update is for the "embeddable" table, then since it is copied to other tables
        // those references need to be updated. I know this is not atomic operation, but not sure
        // how else to handle it.
        if (mongoDoc.isEmbeddable()) {
            updateReferenceTables(collection, mongoDoc, match, options);
        }
    } else {
        // Delete
        DBObject match = new BasicDBObject();
        if (this.visitor.match != null) {
            match = this.visitor.match;
        }

        if (mongoDoc.isEmbeddable()) {
            DBObject m = new BasicDBObject("$match", match); //$NON-NLS-1$
            Cursor output = collection.aggregate(Arrays.asList(m), options);
            while (output.hasNext()) {
                DBObject row = output.next();
                if (row != null) {
                    for (MergeDetails ref : mongoDoc.getEmbeddedIntoReferences()) {
                        DBCollection parent = getCollection(ref.getParentTable());
                        DBObject parentMatch = buildParentMatch(row, ref);
                        DBObject refMatch = new BasicDBObject("$match", parentMatch); //$NON-NLS-1$
                        Cursor referenceOutput = parent.aggregate(Arrays.asList(refMatch), options);
                        if (referenceOutput.hasNext()) {
                            throw new TranslatorException(MongoDBPlugin.Util.gs(MongoDBPlugin.Event.TEIID18010,
                                    this.visitor.mongoDoc.getTargetTable().getName(), ref.getParentTable()));
                        }
                    }
                }
            }
        }

        if (mongoDoc.isMerged()) {
            List<String> parentKeyNames = parentKeyNames(mongoDoc);

            DBObject documentMatch = new BasicDBObject("$match", match); //$NON-NLS-1$                      
            DBObject projection = new BasicDBObject("$project", buildProjectForUpdate(mongoDoc)); //$NON-NLS-1$
            Cursor output = collection.aggregate(Arrays.asList(documentMatch, projection), options);
            while (output.hasNext()) {
                BasicDBObject row = (BasicDBObject) output.next();
                buildUpdate(mongoDoc, collection, row, parentKeyNames, 0, null, executionResults,
                        new DeleteOperationImpl(match));
            }
        } else {
            LogManager.logDetail(LogConstants.CTX_CONNECTOR, "remove - {\"$match\": {" + match + "}}"); //$NON-NLS-1$ //$NON-NLS-2$
            executionResults.add(collection.remove(match, WriteConcern.ACKNOWLEDGED));
        }
    }

    if (!executionResults.isEmpty()) {
        if (this.command instanceof Insert) {
            if (this.executionContext.getCommandContext().isReturnAutoGeneratedKeys()) {
                addAutoGeneretedKeys(executionResults.get(0));
            }
        }

        int updated = 0;
        for (WriteResult result : executionResults) {
            updated += result.getN();
        }

        this.results = new int[1];
        this.results[0] = updated;
    }
}

---

From source file:org.teiid.translator.mongodb.MongoDBUpdateExecution.java

License:Open Source License

private void updateReferenceTables(DBCollection collection, MongoDocument mongoDoc, DBObject match,
        AggregationOptions options) throws TranslatorException {
    DBObject m = new BasicDBObject("$match", match); //$NON-NLS-1$
    Cursor output = collection.aggregate(Arrays.asList(m), options);
    while (output.hasNext()) {
        DBObject row = output.next();
        if (row != null) {
            for (MergeDetails ref : mongoDoc.getEmbeddedIntoReferences()) {
                DBCollection parent = getCollection(ref.getParentTable());
                //DBObject parentmatch = new BasicDBObject(ref.getReferenceName()+".$id", row.get("_id")); //$NON-NLS-1$ //$NON-NLS-2$
                DBObject parentmatch = buildParentMatch(row, ref);
                row.removeField("_id"); //$NON-NLS-1$
                parent.update(parentmatch, new BasicDBObject("$set", new BasicDBObject(ref.getName(), row)), //$NON-NLS-1$
                        false, true, WriteConcern.ACKNOWLEDGED);

                // see if there are nested references
                Table parentTable = this.metadata.getTable(mongoDoc.getTable().getParent().getName(),
                        ref.getParentTable());
                MongoDocument parentMongoDocument = new MongoDocument(parentTable, this.metadata);
                if (parentMongoDocument.isEmbeddable()) {
                    updateReferenceTables(parent, parentMongoDocument, parentmatch, options);
                }/*from   w ww .j a  v  a  2  s.  c  om*/
            }
        }
    }
}

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From source file:org.wrml.contrib.runtime.service.mongo.MongoService.java

License:Apache License

private Model convertToModel(final DBObject mongoObject, final Keys keys, final Dimensions dimensions)
        throws ModelReadingException {

    mongoObject.removeField("_id");

    // Is JSON serialization fast enough here?
    final String jsonStringRepresentation = JSON.serialize(mongoObject);
    final byte[] jsonStringBytes = jsonStringRepresentation.getBytes();
    final InputStream inStream = new ByteArrayInputStream(jsonStringBytes);

    final Context context = getContext();
    final Model model = context.readModel(inStream, keys, dimensions, SystemFormat.json.getFormatUri());
    return model;
}

---

From source file:others.Capped.java

License:Apache License

public static void main(String[] args) throws MongoException, UnknownHostException {

    MongoURI uri = new MongoURI("mongodb://10.11.0.52:27017/test");
    DB db = new Mongo(uri).getDB("test");
    DBObject foo = new BasicDBObject();
    foo.put("create", "capped1");
    foo.put("capped", true);
    foo.put("size", 100000000);
    DBObject dbobj = db.command(foo);//from w  w  w.jav a  2  s  . c  o m
    DBCollection c = db.getCollection("capped1");

    DBObject obj = new BasicDBObject();
    Date begin = new Date();
    for (int i = 1; i <= 1000000; i++) {
        obj.removeField("x");
        obj.put("x", i);
        c.insert(obj);
    }
    Date end = new Date();
    System.out.println("One by one:" + ((end.getTime() - begin.getTime()) / 1000));

    DBObject foo2 = new BasicDBObject();
    foo.put("create", "capped2");
    foo.put("capped", true);
    foo.put("size", 100000000);
    DBObject dbobj2 = db.command(foo);
    DBCollection c2 = db.getCollection("capped2");

    begin = new Date();
    for (int i = 1; i <= 1000; i++) {
        List<DBObject> list = new ArrayList<DBObject>(1000);
        for (int j = 1; j <= 1000; j++) {
            DBObject dbo = new BasicDBObject();
            dbo.put("x", j + (i - 1) * 1000);
            list.add(dbo);
        }
        c2.insert(list);
    }
    end = new Date();
    System.out.println("Batch(per 1000):" + ((end.getTime() - begin.getTime()) / 1000));
}

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From source file:tango.mongo.MongoConnector.java

License:Open Source License

public synchronized void duplicateExperiment(MongoConnector sourceMongo, String source, String destination) {
    DBObject xp = sourceMongo.getExperiment(source);
    xp.removeField("_id");
    xp.put("name", destination);
    experiment.insert(xp);//  w ww.  java  2s.  c o  m
}

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From source file:tango.mongo.MongoConnector.java

License:Open Source License

public synchronized void duplicateNucSettings(String name, String newName) {
    DBObject type = (nucleusSettings.findOne(new BasicDBObject("name", name)));
    if (type == null) {
        ij.IJ.error("duplicate error: settings not found");
        return;//from  ww  w . j av a  2 s. c om
    }
    type.removeField("_id");
    type.put("name", newName);
    nucleusSettings.insert(type);
}

---

From source file:tango.mongo.MongoConnector.java

License:Open Source License

public synchronized void duplicateChannelSettings(String name, String newName) {
    DBObject type = (channelSettings.findOne(new BasicDBObject("name", name)));
    if (type == null) {
        ij.IJ.error("duplicate error: settings not found");
        return;/*from   ww  w  .  j a  v  a 2 s.  co m*/
    }
    type.removeField("_id");
    type.put("name", newName);
    channelSettings.insert(type);
}

---

From source file:Tsunami.TsunamiAdapter.java

License:Apache License

protected void finalizeLocations(EQTask task) {
    long t0, t1;//from ww w  .  ja va2s. c o  m
    t0 = System.nanoTime();
    HashMap<Integer, Double> maxEWH = new HashMap<Integer, Double>();
    HashMap<Integer, Double> minETA = new HashMap<Integer, Double>();
    /* Temporary data structure used to avoid many database interactions. */
    List<DBObject> comps = new ArrayList<DBObject>();
    List<DBObject> sldata = new ArrayList<DBObject>();
    /* translate date into time stamp */
    long time = task.eqparams.date.getTime() / 1000;
    for (String id : locations.keySet()) {
        DBObject loc = locations.get(id);
        if (loc.get("type").equals("TFP") || loc.get("type").equals("TSP")) {
            loc.removeField("lat");
            loc.removeField("lon");
            comps.add(loc);
        } else if (loc.get("type").equals("STATION")) {
            @SuppressWarnings("unchecked")
            List<DBObject> values = (List<DBObject>) loc.get("values");
            for (DBObject obj : values) {
                long rel_time = (long) obj.get("reltime") / task.accel;
                obj.put("inst", task.user.inst);
                obj.put("timestamp", time + rel_time);
                obj.put("reltime", rel_time);
                obj.put("station", id);
                obj.put("evid", task.id);
                sldata.add(obj);
            }
        }

        /* Update maximal and minimal CFZ values. */
        if (loc.get("type").equals("TSP")) {
            Double ewh = (Double) loc.get("ewh");
            Double eta = (Double) loc.get("eta");
            Integer cfz = (Integer) loc.get("cfcz");
            /* TODO: hack! */
            if (cfz == null)
                cfz = 100000 + (Integer) loc.get("ref");
            if (!maxEWH.containsKey(cfz)) {
                maxEWH.put(cfz, ewh);
                minETA.put(cfz, eta);
            }
            maxEWH.put(cfz, Math.max(maxEWH.get(cfz), ewh));
            minETA.put(cfz, Math.min(minETA.get(cfz), eta));
        }
    }
    /* Insert CFZ values into database. */
    for (Integer key : maxEWH.keySet()) {
        DBObject cfz = new BasicDBObject();
        /* TODO: hack! */
        if (key < 100000) {
            cfz.put("code", key);
            cfz.put("type", "CFZ");
            cfz.put("ewh", maxEWH.get(key));
            cfz.put("eta", minETA.get(key));
            cfz.put("EventID", task.id);
        } else {
            cfz.put("ref", key - 100000);
            cfz.put("type", "city");
            cfz.put("ewh", maxEWH.get(key));
            cfz.put("eta", minETA.get(key));
            cfz.put("EventID", task.id);
        }
        comps.add(cfz);
    }
    /* Bulk insert. */
    t1 = System.nanoTime();
    db.getCollection("comp").insert(comps);
    System.out.println("Comp: " + (System.nanoTime() - t1) / 1000000000.);
    t1 = System.nanoTime();
    db.getCollection("simsealeveldata").insert(sldata);
    System.out.println("Sealevel: " + (System.nanoTime() - t1) / 1000000000.);
    System.out.println("Total: " + (System.nanoTime() - t0) / 1000000000.);
}

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From source file:v7db.files.mongodb.V7GridFS.java

License:Open Source License

void updateContents(DBObject metaData, ContentPointer newContents) throws IOException {
    ContentPointer oldContents = getContentPointer(metaData);

    if (newContents.contentEquals(oldContents))
        return;/* w w  w  .j av a 2 s . c om*/

    String filename = (String) metaData.get("filename");
    String contentType = (String) metaData.get("contentType");
    Object fileId = metaData.get("_id");

    BSONObject newContent = storage.updateBackRefs(newContents, fileId, filename, contentType);

    metaData.removeField("sha");
    metaData.removeField("length");
    metaData.removeField("in");

    metaData.putAll(newContent);

    updateMetaData(metaData);
}

---

From source file:v7db.files.mongodb.V7GridFS.java

License:Open Source License

void insertContents(DBObject metaData, ContentPointer newContents) throws IOException {

    String filename = (String) metaData.get("filename");
    String contentType = (String) metaData.get("contentType");
    Object fileId = metaData.get("_id");

    if (newContents != null) {
        BSONObject newContent = storage.updateBackRefs(newContents, fileId, filename, contentType);

        metaData.removeField("sha");
        metaData.removeField("length");
        metaData.removeField("in");

        metaData.putAll(newContent);/*from   w  w w .ja  v  a 2s. c  o  m*/
    }

    insertMetaData(metaData);
}

---

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