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[34] Add the ability to add or retreive custom data
Bug: #34 Signed-off-by: Michaël Charfadi <[email protected]>
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| Original file line number | Diff line number | Diff line change |
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@@ -13,6 +13,7 @@ | |
| package org.eclipse.sirius.emfjson.resource; | ||
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| import com.google.gson.JsonElement; | ||
| import com.google.gson.JsonObject; | ||
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| import java.io.InputStream; | ||
| import java.io.OutputStream; | ||
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@@ -495,6 +496,97 @@ public void onCrossReferenceURICreated(EObject eObject, EReference eReference, S | |
| } | ||
| } | ||
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| /** | ||
| * An option to provide an IJsonResourceProcessor. | ||
| */ | ||
| String OPTION_JSON_RESSOURCE_PROCESSOR = "OPTION_JSON_RESSOURCE_PROCESSOR"; //$NON-NLS-1$ | ||
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| /** | ||
| * Used to add data to be serialized in the document, or to retrieve data during deserialization. | ||
| * | ||
| * @author <a href="mailto:[email protected]">Michael Charfadi</a> | ||
| */ | ||
| interface IJsonResourceProcessor { | ||
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| /** | ||
| * Called when a JsonResource is deserialized. | ||
| * | ||
| * @param resource | ||
| * The JsonResource that is deserialized | ||
| * @param jsonObject | ||
| * The root jsonObject | ||
| */ | ||
| void preDeserialization(JsonResource resource, JsonObject jsonObject); | ||
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| /** | ||
| * Called when a JsonResource is serialized. | ||
| * | ||
| * @param resource | ||
| * The JsonResource that is serialized | ||
| * @param jsonObject | ||
| * The root jsonObject | ||
| */ | ||
| void postSerialization(JsonResource resource, JsonObject jsonObject); | ||
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| /** | ||
| * Called during the parsing of JsonResources after loading an eObject. As such the eObject will have all his | ||
| * features set. The jsonObject is the one that was used to set the features and can be used to retrieve values | ||
| * of unknown features. | ||
| * | ||
| * @param eObject | ||
| * the eObject that have been loaded. | ||
| * @param jsonObject | ||
| * the jsonObject used to load the eObject. | ||
| * @param isTopObject | ||
| * if the given JsonObject is a top element. | ||
| */ | ||
| void postObjectLoading(EObject eObject, JsonObject jsonObject, boolean isTopObject); | ||
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| /** | ||
| * Called during the parsing of JsonResource (at loading time). If a feature value has changed since a previous | ||
| * version, use this method to return the correct expected value. Return null if it did not change. | ||
| * | ||
| * @param eObject | ||
| * the object containing the feature. | ||
| * @param feature | ||
| * the feature to set value. | ||
| * @param value | ||
| * the initial serialized value. | ||
| * @return The new value. | ||
| */ | ||
| Object getValue(EObject eObject, EStructuralFeature feature, Object value); | ||
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| /** | ||
| * Implementation of the interface which does nothing. | ||
| * | ||
| * @author <a href="mailto:[email protected]">Michael Charfadi</a> | ||
| */ | ||
| class NoOp implements IJsonResourceProcessor { | ||
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| @Override | ||
| public void preDeserialization(JsonResource resource, JsonObject jsonObject) { | ||
| // Do nothing | ||
| } | ||
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| @Override | ||
| public void postSerialization(JsonResource resource, JsonObject jsonObject) { | ||
| // Do nothing | ||
| } | ||
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| @Override | ||
| public Object getValue(EObject eObject, EStructuralFeature feature, Object value) { | ||
| // Do nothing | ||
| return null; | ||
| } | ||
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| @Override | ||
| public void postObjectLoading(EObject eObject, JsonObject jsonObject, boolean isTopObject) { | ||
| // Do nothing | ||
| } | ||
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| } | ||
| } | ||
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| /** | ||
| * Associate an ID to the {@link EObject}. | ||
| * | ||
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