Making custom domain objects RPT-enabled - Ocean - Schlumberger

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{ return new CustomDataSource(this.fileName, this.dataSourceID); } } 2. Registering the factory in the Petrel project DataManager, on the Petrel Module initialization: public void Initialize() { CustomDSFactory dsf = new CustomDSFactory("CustomXYZ.dat", “My_DS_ID"); PetrelSystem.AddDataSourceFactory(dsf); } Notice the CustomXYZ.dat file will contain the serialized custom objects: Figure 3: File containing the DataSource serialized 3. Finally, the implementation of the custom data source that deals with serialization/deserialization and keeps a Hashtable to store the custom object and its Droid Id: public class CustomDataSource : IDataSource { public CustomDataSource(string fileName, string dataSourceIdentifier) { this.customObjectsDictionary = new Hashtable(); (…) } // Adds an object and its droid to the dictionary public Droid Add(IIdentifiable customObject) { Droid objectDroid = customObject.Droid; if (objectDroid.Equals(Droid.Empty)) objectDroid = new Droid(Id, Guid.NewGuid().ToString()); this.customObjectsDictionary.Add(objectDroid, customObject); return objectDroid; Ocean Developer Best Practices: Ocean for Petrel framework Page 4 of 9 Submitted by the developer community *Mark of Schlumberger. Other company, product, and service names are the properties of their respective owners. Copyright © 2011 Schlumberger. All rights reserved.
} // Called by the framework when user opens a Petrel project file public void Open() { (…) using (FileStream file = fileInfo.OpenRead()) { BinaryFormatter bf = new BinaryFormatter(); this.customObjectsDictionary = bf.Deserialize(file) as Hashtable; } } // Called by the framework when user saves a Petrel project file public void Save() { (…) using (FileStream fileStream = fileInfo.OpenWrite()) { BinaryFormatter bf = new BinaryFormatter(); bf.Serialize(fileStream, this.customObjectsDictionary); } } } The Add() function is used to store IIdentifiable objects and its droid in a hashtable. Open() deserializes a binary file in order to fill the hashtable and Save() serializes the hashtable into a file stream. 4. Important notes about serialization There are two very important remarks to be done about serialization: 1) 1. If a custom domain object contains references to other Petrel domain objects, it must serialize only the Droid’s of such references and not the objects themselves. Observe the example below: [NonSerialized] private SeismicCube internalSeismicCube; private Droid seismicCubeDroid; 2) 2. Before calling the serialization (CustomDataSource.Save() method), any events on the objects to be serialized must be turned off. obj.Changed -= this .changedEventHandler; Such events must probably be linked again after the serialization has finished executing. Ocean Developer Best Practices: Ocean for Petrel framework Page 5 of 9 Submitted by the developer community *Mark of Schlumberger. Other company, product, and service names are the properties of their respective owners. Copyright © 2011 Schlumberger. All rights reserved.
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Making custom domain objects RPT-enabled - Ocean - Schlumberger

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